When I shut my system down, the last line I saw was
Shutting down devices.
I've hacked drivers/base/power.c:device_shutdown() like this:
void device_shutdown(void)
{
struct list_head * entry;
printk(KERN_EMERG "Shutting down devices\n");
down(&device_sem);
list_for_each(entry,&global_device_list) {
struct device * dev = to_dev(entry);
printk(KERN_EMERG "found device in global_device_list present %d ID '%s' name %s\n", device_present(dev),
dev->bus_id ? dev->bus_id : "<none>", dev->name ? dev->name : "<none>");
if (device_present(dev) && dev->driver && dev->driver->shutdown) {
pr_debug("shutting down %s\n",dev->name);
dev->driver->shutdown(dev);
}
}
up(&device_sem);
}
And I've enabled DEBUG in drivers/base/core.c. It seems the same 2
devices are being found in my global_device_list alternating, and the
list_for_each is in effect an endless loop.
dmesg | grep "^DEV:" gives:
DEV: registering device: ID = 'sys', name = System Bus
DEV: registering device: ID = 'legacy', name = legacy bus
DEV: registering device: ID = 'cpu0', name =
DEV: registering device: ID = 'cpu1', name =
DEV: registering device: ID = 'pci0', name = Host/PCI Bridge
DEV: registering device: ID = '00:00.0', name = VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
DEV: registering device: ID = '00:01.0', name = VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
DEV: registering device: ID = '00:07.0', name = VIA Technologies, Inc. VT82C686 [Apollo Super South]
DEV: registering device: ID = '00:07.1', name = VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
DEV: registering device: ID = '00:07.2', name = VIA Technologies, Inc. USB
DEV: registering device: ID = '00:07.3', name = VIA Technologies, Inc. USB (#2)
DEV: registering device: ID = '00:07.4', name = VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
DEV: registering device: ID = '00:09.0', name = Promise Technology, Inc. 20265
DEV: registering device: ID = '00:0a.0', name = LSI Logic / Symbios Logic (formerly NCR) 53c860
DEV: registering device: ID = '00:0b.0', name = Creative Labs SB Live! EMU10k1
DEV: registering device: ID = '00:0b.1', name = Creative Labs SB Live! MIDI/Game Port
DEV: registering device: ID = '00:0c.0', name = Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
DEV: registering device: ID = '00:0e.0', name = Triones Technologies, Inc. HPT366/368/370/370A/372
DEV: registering device: ID = '01:00.0', name = Matrox Graphics, Inc. MGA G400 AGP
DEV: registering device: ID = 'pic0', name = i8259A PIC
DEV: registering device: ID = 'rtc0', name = i8253 Real Time Clock
DEV: registering device: ID = 'fd0', name =
DEV: registering device: ID = 'fd1', name =
DEV: registering device: ID = 'floppy0', name = Floppy Drive
DEV: registering device: ID = 'ide0', name = IDE Controller
DEV: registering device: ID = '0.0', name = IDE Drive
DEV: registering device: ID = 'ide1', name = IDE Controller
DEV: registering device: ID = '1.0', name = IDE Drive
DEV: registering device: ID = 'ide2', name = IDE Controller
DEV: registering device: ID = '2.0', name = IDE Drive
DEV: registering device: ID = 'ide4', name = IDE Controller
DEV: registering device: ID = '4.0', name = IDE Drive
DEV: registering device: ID = 'ide5', name = IDE Controller
DEV: registering device: ID = '5.0', name = IDE Drive
DEV: registering device: ID = 'hda', name =
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'p5', name =
DEV: registering device: ID = 'p6', name =
DEV: registering device: ID = 'p7', name =
DEV: registering device: ID = 'p8', name =
DEV: registering device: ID = 'p9', name =
DEV: registering device: ID = 'p10', name =
DEV: registering device: ID = 'p11', name =
DEV: registering device: ID = 'p12', name =
DEV: registering device: ID = 'hde', name =
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'hdi', name =
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'hdk', name =
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'scsi0', name = sym53c8xx
DEV: registering device: ID = 'scsi0', name = sym53c8xx
DEV: registering device: ID = '0:0:1:0', name =
DEV: registering device: ID = '0:0:2:0', name =
DEV: registering device: ID = '0:0:5:0', name = ZYAMAHA CRW2100S 1.0N
DEV: registering device: ID = 'scsi1', name = ide-scsi
DEV: registering device: ID = '1:0:0:0', name =
DEV: registering device: ID = 'sr0', name =
DEV: registering device: ID = 'sr1', name =
DEV: registering device: ID = 'sr2', name =
DEV: registering device: ID = 'sr3', name =
DEV: registering device: ID = '0:0:1:0:gen', name = generic
DEV: registering device: ID = '0:0:2:0:gen', name = generic
DEV: registering device: ID = '0:0:5:0:gen', name = ZYAMAHA CRW2100S 1.0Ngeneric
DEV: registering device: ID = '1:0:0:0:gen', name = generic
DEV: registering device: ID = 'usb1', name = USB device 0000:0000
DEV: registering device: ID = '1-0:0', name = usb-00:07.2-0 interface 0
DEV: registering device: ID = 'usb2', name = USB device 0000:0000
DEV: registering device: ID = '2-0:0', name = usb-00:07.3-0 interface 0
DEV: registering device: ID = 'loop0', name =
DEV: registering device: ID = 'loop1', name =
DEV: registering device: ID = 'loop2', name =
DEV: registering device: ID = 'loop3', name =
DEV: registering device: ID = 'loop4', name =
DEV: registering device: ID = 'loop5', name =
DEV: registering device: ID = 'loop6', name =
DEV: registering device: ID = 'loop7', name =
On shutdown, I see these lines alternating:
found device in global_device_list present 1 ID '0:0:5:0:gen' name ZYAMAHA CRW2100S 1.0Ngeneric
found device in global_device_list present 1 ID '0:0:2:0:gen' name = generic
I can't imagine the global_device_list is corrupt in some way.
Any hints? Full dmesg below.
I think I'm going to dump the full global_device_list() any time before
and after something is added during boot...
Thanks,
Jurriaan
Linux version 2.5.44 (root@middle) (gcc version 2.95.4 20011002 (Debian prerelease)) #4 SMP Sat Oct 19 17:08:45 CEST 2002
Video mode to be used for restore is f00
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
user-defined physical RAM map:
user: 0000000000000000 - 000000000009fc00 (usable)
user: 000000000009fc00 - 00000000000a0000 (reserved)
user: 00000000000f0000 - 0000000000100000 (reserved)
user: 0000000000100000 - 000000003fff0000 (usable)
user: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
user: 000000003fff3000 - 0000000040000000 (ACPI data)
user: 00000000fec00000 - 00000000fec01000 (reserved)
user: 00000000fee00000 - 00000000fee01000 (reserved)
user: 00000000ffff0000 - 0000000100000000 (reserved)
127MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000f5770
hm, page 000f5000 reserved twice.
hm, page 000f6000 reserved twice.
hm, page 000f1000 reserved twice.
hm, page 000f2000 reserved twice.
On node 0 totalpages: 262128
DMA zone: 4096 pages
Normal zone: 225280 pages
HighMem zone: 32752 pages
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
Processor #0 6:8 APIC version 17
Processor #1 6:8 APIC version 17
I/O APIC #2 Version 17 at 0xFEC00000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 2
Building zonelist for node : 0
Kernel command line: root=/dev/hda7 video=matrox:vesa:0x11E,fv:80,sgram hdc=scsi apm=power-off mem=1048512K
ide_setup: hdc=scsi
Initializing CPU#0
Detected 703.169 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1380.35 BogoMIPS
Memory: 1033396k/1048512k available (1900k kernel code, 14728k reserved, 1569k data, 332k init, 131008k highmem)
Security Scaffold v1.0.0 initialized
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: Before vendor init, caps: 0387fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU serial number disabled.
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
CPU: Before vendor init, caps: 0383fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
CPU0: Intel Pentium III (Coppermine) stepping 03
per-CPU timeslice cutoff: 730.87 usecs.
task migration cache decay timeout: 1 msecs.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Booting processor 1/1 eip 2000
Initializing CPU#1
masked ExtINT on CPU#1
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Calibrating delay loop... 1404.92 BogoMIPS
CPU: Before vendor init, caps: 0387fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU serial number disabled.
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check reporting enabled on CPU#1.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
CPU1: Intel Pentium III (Coppermine) stepping 03
Total of 2 processors activated (2785.28 BogoMIPS).
ENABLING IO-APIC IRQs
Setting 2 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 2 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 2-0, 2-5, 2-9, 2-10, 2-11, 2-20, 2-21, 2-22, 2-23 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 21.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178011
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0011
.... register #02: 00000000
....... : arbitration: 00
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 000 00 1 0 0 0 0 0 0 00
06 001 01 0 0 0 0 0 1 1 51
07 001 01 0 0 0 0 0 1 1 59
08 001 01 0 0 0 0 0 1 1 61
09 000 00 1 0 0 0 0 0 0 00
0a 000 00 1 0 0 0 0 0 0 00
0b 000 00 1 0 0 0 0 0 0 00
0c 001 01 0 0 0 0 0 1 1 69
0d 001 01 0 0 0 0 0 1 1 71
0e 001 01 0 0 0 0 0 1 1 79
0f 001 01 0 0 0 0 0 1 1 81
10 001 01 1 1 0 1 0 1 1 89
11 001 01 1 1 0 1 0 1 1 91
12 001 01 1 1 0 1 0 1 1 99
13 001 01 1 1 0 1 0 1 1 A1
14 000 00 1 0 0 0 0 0 0 00
15 000 00 1 0 0 0 0 0 0 00
16 000 00 1 0 0 0 0 0 0 00
17 000 00 1 0 0 0 0 0 0 00
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ18 -> 0:18
IRQ19 -> 0:19
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 703.0098 MHz.
..... host bus clock speed is 100.0442 MHz.
checking TSC synchronization across 2 CPUs: passed.
Starting migration thread for cpu 0
Bringing up 1
CPU 1 IS NOW UP!
Starting migration thread for cpu 1
CPUS done 4294967295
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
mtrr: v2.0 (20020519)
mtrr: your CPUs had inconsistent variable MTRR settings
mtrr: probably your BIOS does not setup all CPUs
DEV: registering device: ID = 'sys', name = System Bus
DEV: registering device: ID = 'legacy', name = legacy bus
PCI: PCI BIOS revision 2.10 entry at 0xfb3a0, last bus=1
PCI: Using configuration type 1
Registering system device cpu0
DEV: registering device: ID = 'cpu0', name =
adding '' to cpu class interfaces
Registering system device cpu1
DEV: registering device: ID = 'cpu1', name =
adding '' to cpu class interfaces
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
DEV: registering device: ID = 'pci0', name = Host/PCI Bridge
DEV: registering device: ID = '00:00.0', name = VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
DEV: registering device: ID = '00:01.0', name = VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
DEV: registering device: ID = '00:07.0', name = VIA Technologies, Inc. VT82C686 [Apollo Super South]
DEV: registering device: ID = '00:07.1', name = VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
DEV: registering device: ID = '00:07.2', name = VIA Technologies, Inc. USB
DEV: registering device: ID = '00:07.3', name = VIA Technologies, Inc. USB (#2)
DEV: registering device: ID = '00:07.4', name = VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
DEV: registering device: ID = '00:09.0', name = Promise Technology, Inc. 20265
DEV: registering device: ID = '00:0a.0', name = LSI Logic / Symbios Logic (formerly NCR) 53c860
DEV: registering device: ID = '00:0b.0', name = Creative Labs SB Live! EMU10k1
DEV: registering device: ID = '00:0b.1', name = Creative Labs SB Live! MIDI/Game Port
DEV: registering device: ID = '00:0c.0', name = Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
DEV: registering device: ID = '00:0e.0', name = Triones Technologies, Inc. HPT366/368/370/370A/372
DEV: registering device: ID = '01:00.0', name = Matrox Graphics, Inc. MGA G400 AGP
PCI: Using IRQ router VIA [1106/0686] at 00:07.0
PCI->APIC IRQ transform: (B0,I7,P3) -> 19
PCI->APIC IRQ transform: (B0,I7,P3) -> 19
PCI->APIC IRQ transform: (B0,I9,P0) -> 16
PCI->APIC IRQ transform: (B0,I10,P0) -> 17
PCI->APIC IRQ transform: (B0,I11,P0) -> 17
PCI->APIC IRQ transform: (B0,I12,P0) -> 19
PCI->APIC IRQ transform: (B0,I14,P0) -> 18
PCI->APIC IRQ transform: (B1,I0,P0) -> 16
Registering system device pic0
DEV: registering device: ID = 'pic0', name = i8259A PIC
Registering system device rtc0
DEV: registering device: ID = 'rtc0', name = i8253 Real Time Clock
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16)
apm: disabled - APM is not SMP safe (power off active).
apm: WARNING: not running on first cpu!
Starting kswapd
highmem bounce pool size: 64 pages
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]: 1 bvecs: 256 entries (12 bytes)
biovec pool[1]: 4 bvecs: 256 entries (48 bytes)
biovec pool[2]: 16 bvecs: 256 entries (192 bytes)
biovec pool[3]: 64 bvecs: 256 entries (768 bytes)
biovec pool[4]: 128 bvecs: 256 entries (1536 bytes)
biovec pool[5]: 256 bvecs: 256 entries (3072 bytes)
aio_setup: sizeof(struct page) = 40
Journalled Block Device driver loaded
Capability LSM initialized
PCI: Enabling Via external APIC routing
PCI: Via IRQ fixup for 00:07.2, from 9 to 3
PCI: Via IRQ fixup for 00:07.3, from 9 to 3
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
parport0: PC-style at 0x378 [PCSPP,EPP]
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport_pc: Via 686A parallel port: io=0x378
matroxfb: Matrox G400 (AGP) detected
MTRR: setting reg 2
MTRR: setting reg 2
matroxfb: MTRR's turned on
matroxfb: 1600x1200x16bpp (virtual: 1600x5241)
matroxfb: framebuffer at 0xD0000000, mapped to 0xf8805000, size 33554432
Console: switching to colour frame buffer device 133x54
fb0: MATROX VGA frame buffer device
pty: 256 Unix98 ptys configured
lp0: using parport0 (polling).
Software Watchdog Timer: 0.06, soft_margin: 60 sec, nowayout: 0
block request queues:
128 requests per read queue
128 requests per write queue
8 requests per batch
enter congestion at 31
exit congestion at 33
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
DEV: registering device: ID = 'fd0', name =
DEV: registering device: ID = 'fd1', name =
DEV: registering device: ID = 'floppy0', name = Floppy Drive
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 00:07.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1
ide0: BM-DMA at 0xa000-0xa007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xa008-0xa00f, BIOS settings: hdc:pio, hdd:pio
hda: Maxtor 33073H3, ATA DISK drive
DEV: registering device: ID = 'ide0', name = IDE Controller
hda: DMA disabled
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
DEV: registering device: ID = '0.0', name = IDE Drive
hdc: LITE-ON LTR-40125W, ATAPI CD/DVD-ROM drive
DEV: registering device: ID = 'ide1', name = IDE Controller
hdc: DMA disabled
ide1 at 0x170-0x177,0x376 on irq 15
DEV: registering device: ID = '1.0', name = IDE Drive
PDC20265: IDE controller at PCI slot 00:09.0
PDC20265: chipset revision 2
PDC20265: not 100% native mode: will probe irqs later
PDC20265: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
PDC20265: FORCING BURST BIT 0x00->0x01 ACTIVE
ide2: BM-DMA at 0xbc00-0xbc07, BIOS settings: hde:DMA, hdf:pio
ide3: BM-DMA at 0xbc08-0xbc0f, BIOS settings: hdg:DMA, hdh:DMA
hde: IBM-DTLA-307045, ATA DISK drive
DEV: registering device: ID = 'ide2', name = IDE Controller
ide2 at 0xac00-0xac07,0xb002 on irq 16
DEV: registering device: ID = '2.0', name = IDE Drive
HPT370: IDE controller at PCI slot 00:0e.0
HPT370: chipset revision 3
HPT370: not 100% native mode: will probe irqs later
HPT37X: using 33MHz PCI clock
ide4: BM-DMA at 0xe000-0xe007, BIOS settings: hdi:DMA, hdj:pio
ide5: BM-DMA at 0xe008-0xe00f, BIOS settings: hdk:DMA, hdl:pio
hdi: Maxtor 4G120J6, ATA DISK drive
DEV: registering device: ID = 'ide4', name = IDE Controller
ide4 at 0xd000-0xd007,0xd402 on irq 18
DEV: registering device: ID = '4.0', name = IDE Drive
hdk: Maxtor 4G120J6, ATA DISK drive
DEV: registering device: ID = 'ide5', name = IDE Controller
ide5 at 0xd800-0xd807,0xdc02 on irq 18
DEV: registering device: ID = '5.0', name = IDE Drive
hda: host protected area => 1
hda: 60032448 sectors (30737 MB) w/2048KiB Cache, CHS=3736/255/63, UDMA(100)
DEV: registering device: ID = 'hda', name =
hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 >
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'p5', name =
DEV: registering device: ID = 'p6', name =
DEV: registering device: ID = 'p7', name =
DEV: registering device: ID = 'p8', name =
DEV: registering device: ID = 'p9', name =
DEV: registering device: ID = 'p10', name =
DEV: registering device: ID = 'p11', name =
DEV: registering device: ID = 'p12', name =
hde: host protected area => 1
hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63, UDMA(100)
DEV: registering device: ID = 'hde', name =
hde: hde1 hde2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
hdi: host protected area => 1
hdi: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=14946/255/63, UDMA(100)
DEV: registering device: ID = 'hdi', name =
hdi: hdi1 hdi2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
hdk: host protected area => 1
hdk: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=14946/255/63, UDMA(100)
DEV: registering device: ID = 'hdk', name =
hdk: hdk1 hdk2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
ide-cd: passing drive hdc to ide-scsi emulation.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 10, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c860 detected
sym53c860-0: rev 0x13 on pci bus 0 device 10 function 0 irq 17
sym53c860-0: ID 7, Fast-20, Parity Checking
Debug: sleeping function called from illegal context at include/asm/semaphore.h:119
Call Trace:
[<c0118cf4>] __might_sleep+0x54/0x58
[<c01c2297>] get_device+0x17/0x70
[<c01c2209>] device_initialize+0x61/0x6c
[<c01c2246>] device_register+0x32/0x6c
[<c02235f0>] cursor_timer_handler+0x0/0x28
[<c0120d35>] tasklet_hi_action+0x85/0xe0
[<c0120a3a>] do_softirq+0x5a/0xac
[<c011389f>] smp_apic_timer_interrupt+0x113/0x124
[<c0107be2>] apic_timer_interrupt+0x1a/0x20
[<c0120d35>] tasklet_hi_action+0x85/0xe0
[<c0120a3a>] do_softirq+0x5a/0xac
[<c011389f>] smp_apic_timer_interrupt+0x113/0x124
[<c0107be2>] apic_timer_interrupt+0x1a/0x20
[<c022adcd>] matrox_cfbX_putcs+0x1f9/0x260
[<c0138ea0>] __alloc_pages+0x90/0x25c
[<c01390a6>] __get_free_pages+0x3a/0x40
[<c0135038>] do_ccupdate_local+0x0/0x34
[<c0135038>] do_ccupdate_local+0x0/0x34
[<c0135026>] smp_call_function_all_cpus+0x1a/0x2c
[<c01357fe>] kmem_cache_alloc+0x22/0x16c
[<c015a720>] alloc_inode+0x30/0x180
[<c015a7e3>] alloc_inode+0xf3/0x180
[<c015aec7>] new_inode+0xb/0x88
[<c016e9f4>] driverfs_get_inode+0x10/0xdc
[<c016eafd>] driverfs_mknod+0x3d/0x48
[<c016eb27>] driverfs_mkdir+0x1f/0x2c
[<c016f292>] driverfs_create_dir+0x9e/0xd0
[<c01c4085>] device_create_dir+0x15/0x1c
[<c01c426c>] bus_make_dir+0x4c/0x58
[<c01c310f>] put_bus+0x13/0x80
[<c01c320f>] bus_register+0x93/0x9c
[<c01ffec9>] scsi_register_host+0x39/0x1e4
[<c01050ab>] init+0x47/0x1ac
[<c0105064>] init+0x0/0x1ac
[<c01054f1>] kernel_thread_helper+0x5/0xc
DEV: registering device: ID = 'scsi0', name = sym53c8xx
scsi0 : sym53c8xx-1.7.3c-20010512
DEV: registering device: ID = 'scsi0', name = sym53c8xx
sym53c860-0-<1,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
Vendor: TOSHIBA Model: DVD-ROM SD-M1401 Rev: 1007
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:1:0', name =
sym53c860-0-<2,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
Vendor: PLEXTOR Model: CD-ROM PX-32TS Rev: 1.02
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:2:0', name =
sym53c860-0-<5,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 7)
Vendor: YAMAHA Model: CRW2100S Rev: 1.0N
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:5:0', name = ZYAMAHA CRW2100S 1.0N
scsi1 : SCSI host adapter emulation for IDE ATAPI devices
DEV: registering device: ID = 'scsi1', name = ide-scsi
Vendor: LITE-ON Model: LTR-40125W Rev: WS05
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '1:0:0:0', name =
st: Version 20021015, fixed bufsize 32768, wrt 30720, s/g segs 256
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 1, lun 0
Attached scsi CD-ROM sr1 at scsi0, channel 0, id 2, lun 0
Attached scsi CD-ROM sr2 at scsi0, channel 0, id 5, lun 0
Attached scsi CD-ROM sr3 at scsi1, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 40x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
DEV: registering device: ID = 'sr0', name =
sr1: scsi-1 drive
DEV: registering device: ID = 'sr1', name =
sr2: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
DEV: registering device: ID = 'sr2', name =
sr3: scsi3-mmc drive: 12x/12x writer cd/rw xa/form2 cdda tray
DEV: registering device: ID = 'sr3', name =
DEV: registering device: ID = '0:0:1:0:gen', name = generic
DEV: registering device: ID = '0:0:2:0:gen', name = generic
DEV: registering device: ID = '0:0:5:0:gen', name = ZYAMAHA CRW2100S 1.0Ngeneric
DEV: registering device: ID = '1:0:0:0:gen', name = generic
matroxfb_crtc2: secondary head of fb0 was registered as fb1
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.0
drivers/usb/core/hcd-pci.c: uhci-hcd @ 00:07.2, VIA Technologies, Inc. USB
drivers/usb/core/hcd-pci.c: irq 19, io base 0000a400
drivers/usb/core/hcd.c: new USB bus registered, assigned bus number 1
DEV: registering device: ID = 'usb1', name = USB device 0000:0000
DEV: registering device: ID = '1-0:0', name = usb-00:07.2-0 interface 0
drivers/usb/core/hub.c: USB hub found at 0
drivers/usb/core/hub.c: 2 ports detected
drivers/usb/core/hcd-pci.c: uhci-hcd @ 00:07.3, VIA Technologies, Inc. USB (#2)
drivers/usb/core/hcd-pci.c: irq 19, io base 0000a800
drivers/usb/core/hcd.c: new USB bus registered, assigned bus number 2
DEV: registering device: ID = 'usb2', name = USB device 0000:0000
DEV: registering device: ID = '2-0:0', name = usb-00:07.3-0 interface 0
drivers/usb/core/hub.c: USB hub found at 0
drivers/usb/core/hub.c: 2 ports detected
drivers/usb/core/usb.c: registered new driver usblp
drivers/usb/class/usblp.c: v0.12: USB Printer Device Class driver
drivers/usb/core/usb.c: registered new driver usbscanner
drivers/usb/image/scanner.c: 0.4.6:USB Scanner Driver
register interface 'mouse' with class 'input
mice: PS/2 mouse device common for all mice
input: PC Speaker
input: ImPS/2 Generic Wheel Mouse on isa0060/serio1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Set 2 keyboard on isa0060/serio0
serio: i8042 KBD port at 0x60,0x64 irq 1
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
8regs : 1152.000 MB/sec
32regs : 896.000 MB/sec
pIII_sse : 1408.000 MB/sec
pII_mmx : 1568.000 MB/sec
p5_mmx : 1652.000 MB/sec
raid5: using function: pIII_sse (1408.000 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Advanced Linux Sound Architecture Driver Version 0.9.0rc3 (Mon Oct 14 16:41:26 2002 UTC).
request_module[snd-card-0]: not ready
request_module[snd-card-1]: not ready
request_module[snd-card-2]: not ready
request_module[snd-card-3]: not ready
request_module[snd-card-4]: not ready
request_module[snd-card-5]: not ready
request_module[snd-card-6]: not ready
request_module[snd-card-7]: not ready
ALSA device list:
#0: Sound Blaster Live! at 0xc400, irq 17
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 332k freed
Adding 1574328k swap on /dev/hda9. Priority:-1 extents:1
Real Time Clock Driver v1.11
8139too Fast Ethernet driver 0.9.26
eth0: RealTek RTL8139 Fast Ethernet at 0xfa924000, 00:10:a7:0b:35:1c, IRQ 19
eth0: Identified 8139 chip type 'RTL-8139C'
DEV: registering device: ID = 'loop0', name =
DEV: registering device: ID = 'loop1', name =
DEV: registering device: ID = 'loop2', name =
DEV: registering device: ID = 'loop3', name =
DEV: registering device: ID = 'loop4', name =
DEV: registering device: ID = 'loop5', name =
DEV: registering device: ID = 'loop6', name =
DEV: registering device: ID = 'loop7', name =
loop: loaded (max 8 devices)
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected Via Apollo Pro chipset
agpgart: AGP aperture is 256M @ 0xc0000000
[drm] AGP 0.99 on VIA Apollo Pro @ 0xc0000000 256MB
[drm] Initialized mga 3.0.2 20010321 on minor 0
NTFS driver 2.1.0 [Flags: R/O MODULE].
udf: registering filesystem
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide2(33,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide2(33,1)) for (ide2(33,1))
Using r5 hash to sort names
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.16, 02 Dec 2001 on ide0(3,10), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide0(3,11), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide0(3,11)) for (ide0(3,11))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide0(3,12), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide0(3,12)) for (ide0(3,12))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide2(33,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide2(33,2)) for (ide2(33,2))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide4(56,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide4(56,1)) for (ide4(56,1))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide4(56,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide4(56,2)) for (ide4(56,2))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide5(57,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide5(57,1)) for (ide5(57,1))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide5(57,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide5(57,2)) for (ide5(57,2))
Using r5 hash to sort names
NTFS volume version 3.0.
FAT: Unrecognized mount option mode
eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability 45e1.
--
Tell a man there are 300 billion stars in the universe and he'll believe you.
Tell him a seat has wet paint on it and he'll have to touch it to be sure.
Anonymous
GNU/Linux 2.5.44 SMP/ReiserFS 2x1380 bogomips load av: 0.15 0.14 0.06
> When I shut my system down, the last line I saw was
>
> Shutting down devices.
> I've hacked drivers/base/power.c:device_shutdown() like this:
[snip]
My own system (Dell Latitude CPx750J laptop, RH7.3 base) has 'reboot'
segfaulting and (thanks to kksymoops :) this info, hand copied from the
dead monitor:
EFLAGS: 00010286
EIP is at device_shutdown + 0x6d/0xa2
(didn't write registers down - call trace w/o addresses follows)
sys_reboot
handle_mm_fault
do_page_fault
sock_destroy_inode
destroy_inode
dput
__fput
filp_close
sys_close
syscall_call
I can provide further info / try debugging (but I won't necessarily be
speedy in responding, sorry). This 2.5.44 is built with GCC 3.2.
Thanks,
--alessandro
On Sat, 19 Oct 2002, Jurriaan wrote:
> When I shut my system down, the last line I saw was
>
> Shutting down devices.
>
> I've hacked drivers/base/power.c:device_shutdown() like this:
...
> And I've enabled DEBUG in drivers/base/core.c. It seems the same 2
> devices are being found in my global_device_list alternating, and the
> list_for_each is in effect an endless loop.
Thank you for the debugging output; it's _really_ helpful.
I'm not sure what exactly the problem is, but there are some clues.
> dmesg | grep "^DEV:" gives:
> DEV: registering device: ID = 'scsi0', name = sym53c8xx
> DEV: registering device: ID = 'scsi0', name = sym53c8xx
> On shutdown, I see these lines alternating:
>
> found device in global_device_list present 1 ID '0:0:5:0:gen' name ZYAMAHA CRW2100S 1.0Ngeneric
> found device in global_device_list present 1 ID '0:0:2:0:gen' name = generic
>
> I can't imagine the global_device_list is corrupt in some way.
>
> Any hints? Full dmesg below.
> I think I'm going to dump the full global_device_list() any time before
> and after something is added during boot...
> DEV: registering device: ID = 'scsi0', name = sym53c8xx
> scsi0 : sym53c8xx-1.7.3c-20010512
> DEV: registering device: ID = 'scsi0', name = sym53c8xx
> sym53c860-0-<1,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
> Vendor: TOSHIBA Model: DVD-ROM SD-M1401 Rev: 1007
> Type: CD-ROM ANSI SCSI revision: 02
It appears the same device is being added twice. After doing some digging
in the sym53c8xx and the scsi host code, that suspicion grows, though I'm
not positively sure how the host is being added twice.
sym53c8xx.c includes scsi_module.c, which contains the init_module() for
the driver. That calls scsi_register_host() for the host driver, which
calls ->detect() for the host. No problems there, but that's where the
weirdness begins.
->detect() calls ncr_attach() at least once for each host adapter, which
calls scsi_register(), which adds the host to the internal list of host
adapters. Fine, but once control finally returns to scsi_register_host(),
it will try to do scsi_register() if the low-level driver "failed to
register a driver." (Sprinkle with scsi_unregister_host()s in the host
driver code, and generic code, and you have successfully created a very
convoluted code path.)
AFAICT, scsi_register() doesn't successfully check for duplicate names,
and multiple instances of the host aren't detected. And the list
manipulation itself is fishy at best.
scsi_register_host() then loops through the hosts, and registers all the
ones that this driver added. (Q: why is that function constantly looping
through all the scsi hosts just to operate on the one passed in?).
If there are multiple instances of the same driver on the list, then very
interesting things will happen. The device will be inserted into the
lists, but directory creation will fail, which will cause the device to be
removed from the lists its on, which is bad juju. scsi_register_host() is
not checking the return of device_register() either, and unconditionally
calling scan_scsis().
The thing I still don't understand is why, if the device is inserted twice
on the scsi host list and registered in scsi_register_host(), we don't see
two messages like:
> scsi0 : sym53c8xx-1.7.3c-20010512
To summarize, I think the device is being added twice, which is producing
unpredictable behavior. This might also explain another unexplainable bug
during shutdown, using the same controller.
device_add() should be checking if the device is already registered before
adding it to the global list.
Callers of device_register() and device_add() should check the return of
it.
The SCSI code is confusing and likely the culprit.
The patch below checks if the device is registered, and fixes the
embarrassing double up() bug (Sorry, blackjack on the brain..). Could you
please try it, and let me know if it helps at all?
Thanks,
-pat - lost in a twisty maze of scsi calls - mochel
===== drivers/base/core.c 1.49 vs edited =====
--- 1.49/drivers/base/core.c Sun Oct 20 13:10:00 2002
+++ edited/drivers/base/core.c Sun Oct 20 13:15:06 2002
@@ -33,6 +33,8 @@
if (!dev || !strlen(dev->bus_id))
return -EINVAL;
+ WARN_ON(dev->state == DEVICE_REGISTERED);
+
if (dev->parent) {
parent = get_device(dev->parent);
if (!parent)
@@ -67,9 +69,10 @@
devclass_add_device(dev);
register_done:
if (error) {
- up(&device_sem);
+ down(&device_sem);
list_del_init(&dev->g_list);
- list_del_init(&dev->node);
+ if (!list_empty(&dev->node))
+ list_del_init(&dev->node);
up(&device_sem);
if (parent)
put_device(parent);
On Sun, Oct 20, 2002 at 01:21:29PM -0700, Patrick Mochel wrote:
>
> On Sat, 19 Oct 2002, Jurriaan wrote:
>
> > DEV: registering device: ID = 'scsi0', name = sym53c8xx
Above is from scsi_set_pci_device() call.
> > scsi0 : sym53c8xx-1.7.3c-20010512
> > DEV: registering device: ID = 'scsi0', name = sym53c8xx
Above are from scsi_register_host().
> > sym53c860-0-<1,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
> > Vendor: TOSHIBA Model: DVD-ROM SD-M1401 Rev: 1007
> > Type: CD-ROM ANSI SCSI revision: 02
>
> It appears the same device is being added twice. After doing some digging
> in the sym53c8xx and the scsi host code, that suspicion grows, though I'm
> not positively sure how the host is being added twice.
>
Looks like we have two device_register(&shost->host_driverfs_dev) calls,
one in scsi_set_pci_device, and one in scsi_register_host(). I think
Mike meant to delete the one in scsi_register_host, but I can't tell
for certain which one should go away.
And this must might be why I can't shutdown (i.e. no auto reboot).
So in 2.5.44 have:
scsi_register_host() calls
attach [ncr_attach] calls
scsi_register
scsi_set_pci_device calls
device_register(&shost->host_driverfs_dev)
call to device_register() again in scsi_register_host
This removes the scsi_register_host() one, I can shutdown/reboot
with this patch, I didn't dump anything else or try rmmod's:
--- bleed-2.5/drivers/scsi/hosts.c Sat Oct 19 10:30:01 2002
+++ bleed-2.5/drivers/scsi/hosts.c-mine Sun Oct 20 14:46:13 2002
@@ -543,7 +543,6 @@
shost->host_no, dm_name);
/* first register parent with driverfs */
- device_register(&shost->host_driverfs_dev);
scan_scsis(shost, 0, 0, 0, 0);
}
}
> scsi_register_host() then loops through the hosts, and registers all the
> ones that this driver added. (Q: why is that function constantly looping
> through all the scsi hosts just to operate on the one passed in?).
A Scsi_Host_Template is passed in, it loops over Scsi_Hosts to find
everyone that is using the Scsi_Host_Template, the names are confusing
as well as the code.
> The SCSI code is confusing and likely the culprit.
Yes and yes ...
-- Patrick Mansfield
Thanks for debugging this.
I meant to keep the one in scsi_register_host and delete the one in
scsi_set_pci_device. I was having an issue with non-pci hosts when I
registered only through scsi_set_pci_device though the problem could
have been not ensuring parent was set to null so that if it was not set
prior to device_register we would not oops.
Either Patrick M's patch or this one should work until we straighten out
our device model support.
--- 1.19/drivers/scsi/hosts.h Wed Oct 16 17:53:47 2002
+++ edited/drivers/scsi/hosts.h Sun Oct 20 19:45:35 2002
@@ -551,9 +551,6 @@
{
shost->pci_dev = pdev;
shost->host_driverfs_dev.parent=&pdev->dev;
-
- /* register parent with driverfs */
- device_register(&shost->host_driverfs_dev);
}
Patrick Mansfield [[email protected]] wrote:
> On Sun, Oct 20, 2002 at 01:21:29PM -0700, Patrick Mochel wrote:
> >
> > On Sat, 19 Oct 2002, Jurriaan wrote:
> >
> > > DEV: registering device: ID = 'scsi0', name = sym53c8xx
>
> Above is from scsi_set_pci_device() call.
>
> > > scsi0 : sym53c8xx-1.7.3c-20010512
> > > DEV: registering device: ID = 'scsi0', name = sym53c8xx
>
> Above are from scsi_register_host().
>
> > > sym53c860-0-<1,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
> > > Vendor: TOSHIBA Model: DVD-ROM SD-M1401 Rev: 1007
> > > Type: CD-ROM ANSI SCSI revision: 02
>
> >
> > It appears the same device is being added twice. After doing some digging
> > in the sym53c8xx and the scsi host code, that suspicion grows, though I'm
> > not positively sure how the host is being added twice.
> >
>
> Looks like we have two device_register(&shost->host_driverfs_dev) calls,
> one in scsi_set_pci_device, and one in scsi_register_host(). I think
> Mike meant to delete the one in scsi_register_host, but I can't tell
> for certain which one should go away.
>
> And this must might be why I can't shutdown (i.e. no auto reboot).
>
> So in 2.5.44 have:
>
> scsi_register_host() calls
> attach [ncr_attach] calls
> scsi_register
> scsi_set_pci_device calls
> device_register(&shost->host_driverfs_dev)
> call to device_register() again in scsi_register_host
>
> This removes the scsi_register_host() one, I can shutdown/reboot
> with this patch, I didn't dump anything else or try rmmod's:
>
> --- bleed-2.5/drivers/scsi/hosts.c Sat Oct 19 10:30:01 2002
> +++ bleed-2.5/drivers/scsi/hosts.c-mine Sun Oct 20 14:46:13 2002
> @@ -543,7 +543,6 @@
> shost->host_no, dm_name);
>
> /* first register parent with driverfs */
> - device_register(&shost->host_driverfs_dev);
> scan_scsis(shost, 0, 0, 0, 0);
> }
> }
>
> > scsi_register_host() then loops through the hosts, and registers all the
> > ones that this driver added. (Q: why is that function constantly looping
> > through all the scsi hosts just to operate on the one passed in?).
>
> A Scsi_Host_Template is passed in, it loops over Scsi_Hosts to find
> everyone that is using the Scsi_Host_Template, the names are confusing
> as well as the code.
>
> > The SCSI code is confusing and likely the culprit.
>
> Yes and yes ...
>
> -- Patrick Mansfield
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
-andmike
--
Michael Anderson
[email protected]
Patrick Mochel [[email protected]] wrote:
> ->detect() calls ncr_attach() at least once for each host adapter, which
> calls scsi_register(), which adds the host to the internal list of host
> adapters. Fine, but once control finally returns to scsi_register_host(),
> it will try to do scsi_register() if the low-level driver "failed to
> register a driver."
This was left in during the cleanup and probably should be removed as I
cannot find a driver that needs this and it most likely is not a good
idea if a driver detect routine did not add it in. I will see if I can
get some history on why it was needed.
> (Sprinkle with scsi_unregister_host()s in the host
> driver code, and generic code, and you have successfully created a very
> convoluted code path.)
>
> AFAICT, scsi_register() doesn't successfully check for duplicate names,
> and multiple instances of the host aren't detected. And the list
> manipulation itself is fishy at best.
scsi_register doesn't need to check for duplicate names. A call to
scsi_register adds a instance of a host and scsi_unregister removes one.
Each host on the list has a unique instance number (i.e scsi(n)).
scsi_register_host adds an scsi driver to the the scsi sub-system and
scsi_unregister_host removes one.
>
> scsi_register_host() then loops through the hosts, and registers all the
> ones that this driver added. (Q: why is that function constantly looping
> through all the scsi hosts just to operate on the one passed in?).
The constant looping is created by there only being one list and the
fact the the upper level drivers expect certain behaviors on the calling
of init, attach, finish.
>
> If there are multiple instances of the same driver on the list, then very
> interesting things will happen. The device will be inserted into the
> lists, but directory creation will fail, which will cause the device to be
> removed from the lists its on, which is bad juju. scsi_register_host() is
> not checking the return of device_register() either, and unconditionally
> calling scan_scsis().
ok I will add a return check on device_register. I will also add a check
for the driver already being registered. There was an old check to see
if the list pointer was non-null, but this is probably not the best if
the driver was passing in a non-static.
-andmike
--
Michael Anderson
[email protected]
I tried this patch:
===== drivers/base/core.c 1.49 vs edited =====
--- 1.49/drivers/base/core.c Sun Oct 20 13:10:00 2002
+++ edited/drivers/base/core.c Sun Oct 20 13:15:06 2002
@@ -33,6 +33,8 @@
if (!dev || !strlen(dev->bus_id))
return -EINVAL;
+ WARN_ON(dev->state == DEVICE_REGISTERED);
+
if (dev->parent) {
parent = get_device(dev->parent);
if (!parent)
@@ -67,9 +69,10 @@
devclass_add_device(dev);
register_done:
if (error) {
- up(&device_sem);
+ down(&device_sem);
list_del_init(&dev->g_list);
- list_del_init(&dev->node);
+ if (!list_empty(&dev->node))
+ list_del_init(&dev->node);
up(&device_sem);
if (parent)
put_device(parent);
and it didn't work - still hangs in 'Shutting down devices'.
But I added some debugging output:
void device_shutdown(void)
{
struct list_head * entry;
int i=0;
printk(KERN_EMERG "Shutting down devices\n");
down(&device_sem);
list_for_each(entry,&global_device_list) {
struct device * dev = to_dev(entry);
printk(KERN_EMERG "found device in global_device_list present %d ID '%s' name %s head %08lx entry %08lx next %08lx prev %08lx\n",
device_present(dev),
dev->bus_id ? dev->bus_id : "<none>",
dev->name ? dev->name : "<none>",
&global_device_list, entry, entry->next, entry->prev);
if (device_present(dev) && dev->driver && dev->driver->shutdown) {
pr_debug("shutting down %s\n",dev->name);
dev->driver->shutdown(dev);
}
if (i++ == 128) goto out;
}
out:
up(&device_sem);
}
and I see a loop when shutting down:
ID 'scsi0'
ID '0:0:1:0:gen'
ID '0:0:1:0'
ID '0:0:2:0:gen'
ID '0:0:5:0:gen'
ID '0:0:5:0'
ID 'scsi0'
and then it goes on to 0:0:1:0:gen and repeats itself.
With the crude '>128 devices, skip the rest of it' above, it actually
shuts down. I still wonder if this warning about might-sleep in my dmesg
can have anything to do with this; it occurs just when registering the
scsi card. A full dmesg has been attached.
Kind regards,
Jurriaan
Linux version 2.5.44 (root@middle) (gcc version 2.95.4 20011002 (Debian prerelease)) #2 SMP Mon Oct 21 07:22:55 CEST 2002
Video mode to be used for restore is f00
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
user-defined physical RAM map:
user: 0000000000000000 - 000000000009fc00 (usable)
user: 000000000009fc00 - 00000000000a0000 (reserved)
user: 00000000000f0000 - 0000000000100000 (reserved)
user: 0000000000100000 - 000000003fff0000 (usable)
user: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
user: 000000003fff3000 - 0000000040000000 (ACPI data)
user: 00000000fec00000 - 00000000fec01000 (reserved)
user: 00000000fee00000 - 00000000fee01000 (reserved)
user: 00000000ffff0000 - 0000000100000000 (reserved)
127MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000f5770
hm, page 000f5000 reserved twice.
hm, page 000f6000 reserved twice.
hm, page 000f1000 reserved twice.
hm, page 000f2000 reserved twice.
On node 0 totalpages: 262128
DMA zone: 4096 pages
Normal zone: 225280 pages
HighMem zone: 32752 pages
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
Processor #0 6:8 APIC version 17
Processor #1 6:8 APIC version 17
I/O APIC #2 Version 17 at 0xFEC00000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 2
Building zonelist for node : 0
Kernel command line: root=/dev/hda7 video=matrox:vesa:0x11E,fv:80,sgram hdc=scsi apm=power-off mem=1048512K
ide_setup: hdc=scsi
Initializing CPU#0
Detected 703.208 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1380.35 BogoMIPS
Memory: 1033396k/1048512k available (1900k kernel code, 14728k reserved, 1569k data, 332k init, 131008k highmem)
Security Scaffold v1.0.0 initialized
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: Before vendor init, caps: 0387fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU serial number disabled.
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
CPU: Before vendor init, caps: 0383fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
CPU0: Intel Pentium III (Coppermine) stepping 03
per-CPU timeslice cutoff: 730.87 usecs.
task migration cache decay timeout: 1 msecs.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Booting processor 1/1 eip 2000
Initializing CPU#1
masked ExtINT on CPU#1
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Calibrating delay loop... 1404.92 BogoMIPS
CPU: Before vendor init, caps: 0387fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU serial number disabled.
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
Intel machine check reporting enabled on CPU#1.
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
CPU1: Intel Pentium III (Coppermine) stepping 03
Total of 2 processors activated (2785.28 BogoMIPS).
ENABLING IO-APIC IRQs
Setting 2 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 2 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 2-0, 2-5, 2-9, 2-10, 2-11, 2-20, 2-21, 2-22, 2-23 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 21.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178011
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0011
.... register #02: 00000000
....... : arbitration: 00
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 000 00 1 0 0 0 0 0 0 00
06 001 01 0 0 0 0 0 1 1 51
07 001 01 0 0 0 0 0 1 1 59
08 001 01 0 0 0 0 0 1 1 61
09 000 00 1 0 0 0 0 0 0 00
0a 000 00 1 0 0 0 0 0 0 00
0b 000 00 1 0 0 0 0 0 0 00
0c 001 01 0 0 0 0 0 1 1 69
0d 001 01 0 0 0 0 0 1 1 71
0e 001 01 0 0 0 0 0 1 1 79
0f 001 01 0 0 0 0 0 1 1 81
10 001 01 1 1 0 1 0 1 1 89
11 001 01 1 1 0 1 0 1 1 91
12 001 01 1 1 0 1 0 1 1 99
13 001 01 1 1 0 1 0 1 1 A1
14 000 00 1 0 0 0 0 0 0 00
15 000 00 1 0 0 0 0 0 0 00
16 000 00 1 0 0 0 0 0 0 00
17 000 00 1 0 0 0 0 0 0 00
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ18 -> 0:18
IRQ19 -> 0:19
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 703.0052 MHz.
..... host bus clock speed is 100.0435 MHz.
checking TSC synchronization across 2 CPUs: passed.
Starting migration thread for cpu 0
Bringing up 1
CPU 1 IS NOW UP!
Starting migration thread for cpu 1
CPUS done 4294967295
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
mtrr: v2.0 (20020519)
mtrr: your CPUs had inconsistent variable MTRR settings
mtrr: probably your BIOS does not setup all CPUs
bus type 'pci' registered
bus type 'system' registered
DEV: registering device: ID = 'sys', name = System Bus
DEV: registering device: ID = 'legacy', name = legacy bus
bus type 'platform' registered
PCI: PCI BIOS revision 2.10 entry at 0xfb3a0, last bus=1
PCI: Using configuration type 1
driver system:cpu: registering
bus system: add driver cpu
Registering system device cpu0
DEV: registering device: ID = 'cpu0', name =
bus system: add device cpu0
bound device 'cpu0' to driver 'cpu'
adding '' to cpu class interfaces
Registering system device cpu1
DEV: registering device: ID = 'cpu1', name =
bus system: add device cpu1
bound device 'cpu1' to driver 'cpu'
adding '' to cpu class interfaces
bus type 'usb' registered
driver usb:usbfs: registering
bus usb: add driver usbfs
drivers/usb/core/usb.c: registered new driver usbfs
driver usb:hub: registering
bus usb: add driver hub
drivers/usb/core/usb.c: registered new driver hub
driver usb:generic: registering
bus usb: add driver generic
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
DEV: registering device: ID = 'pci0', name = Host/PCI Bridge
DEV: registering device: ID = '00:00.0', name = VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
bus pci: add device 00:00.0
DEV: registering device: ID = '00:01.0', name = VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
bus pci: add device 00:01.0
DEV: registering device: ID = '00:07.0', name = VIA Technologies, Inc. VT82C686 [Apollo Super South]
bus pci: add device 00:07.0
DEV: registering device: ID = '00:07.1', name = VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
bus pci: add device 00:07.1
DEV: registering device: ID = '00:07.2', name = VIA Technologies, Inc. USB
bus pci: add device 00:07.2
DEV: registering device: ID = '00:07.3', name = VIA Technologies, Inc. USB (#2)
bus pci: add device 00:07.3
DEV: registering device: ID = '00:07.4', name = VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
bus pci: add device 00:07.4
DEV: registering device: ID = '00:09.0', name = Promise Technology, Inc. 20265
bus pci: add device 00:09.0
DEV: registering device: ID = '00:0a.0', name = LSI Logic / Symbios Logic (formerly NCR) 53c860
bus pci: add device 00:0a.0
DEV: registering device: ID = '00:0b.0', name = Creative Labs SB Live! EMU10k1
bus pci: add device 00:0b.0
DEV: registering device: ID = '00:0b.1', name = Creative Labs SB Live! MIDI/Game Port
bus pci: add device 00:0b.1
DEV: registering device: ID = '00:0c.0', name = Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
bus pci: add device 00:0c.0
DEV: registering device: ID = '00:0e.0', name = Triones Technologies, Inc. HPT366/368/370/370A/372
bus pci: add device 00:0e.0
DEV: registering device: ID = '01:00.0', name = Matrox Graphics, Inc. MGA G400 AGP
bus pci: add device 01:00.0
PCI: Using IRQ router VIA [1106/0686] at 00:07.0
PCI->APIC IRQ transform: (B0,I7,P3) -> 19
PCI->APIC IRQ transform: (B0,I7,P3) -> 19
PCI->APIC IRQ transform: (B0,I9,P0) -> 16
PCI->APIC IRQ transform: (B0,I10,P0) -> 17
PCI->APIC IRQ transform: (B0,I11,P0) -> 17
PCI->APIC IRQ transform: (B0,I12,P0) -> 19
PCI->APIC IRQ transform: (B0,I14,P0) -> 18
PCI->APIC IRQ transform: (B1,I0,P0) -> 16
driver system:pic: registering
bus system: add driver pic
Registering system device pic0
DEV: registering device: ID = 'pic0', name = i8259A PIC
bus system: add device pic0
bound device 'pic0' to driver 'pic'
Registering system device rtc0
DEV: registering device: ID = 'rtc0', name = i8253 Real Time Clock
bus system: add device rtc0
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16)
apm: disabled - APM is not SMP safe (power off active).
Starting kswapd
highmem bounce pool size: 64 pages
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]: 1 bvecs: 256 entries (12 bytes)
biovec pool[1]: 4 bvecs: 256 entries (48 bytes)
biovec pool[2]: 16 bvecs: 256 entries (192 bytes)
biovec pool[3]: 64 bvecs: 256 entries (768 bytes)
biovec pool[4]: 128 bvecs: 256 entries (1536 bytes)
biovec pool[5]: 256 bvecs: 256 entries (3072 bytes)
aio_setup: sizeof(struct page) = 40
Journalled Block Device driver loaded
Capability LSM initialized
PCI: Enabling Via external APIC routing
PCI: Via IRQ fixup for 00:07.2, from 9 to 3
PCI: Via IRQ fixup for 00:07.3, from 9 to 3
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
driver pci:serial: registering
bus pci: add driver serial
parport0: PC-style at 0x378 [PCSPP,EPP]
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport_pc: Via 686A parallel port: io=0x378
driver pci:parport_pc: registering
bus pci: add driver parport_pc
bound device '00:07.0' to driver 'parport_pc'
driver pci:matroxfb: registering
bus pci: add driver matroxfb
matroxfb: Matrox G400 (AGP) detected
MTRR: setting reg 2
MTRR: setting reg 2
matroxfb: MTRR's turned on
matroxfb: 1600x1200x16bpp (virtual: 1600x5241)
matroxfb: framebuffer at 0xD0000000, mapped to 0xf8805000, size 33554432
Console: switching to colour frame buffer device 133x54
fb0: MATROX VGA frame buffer device
bound device '01:00.0' to driver 'matroxfb'
pty: 256 Unix98 ptys configured
lp0: using parport0 (polling).
Software Watchdog Timer: 0.06, soft_margin: 60 sec, nowayout: 0
block request queues:
128 requests per read queue
128 requests per write queue
8 requests per batch
enter congestion at 31
exit congestion at 33
bus type 'block' registered
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
DEV: registering device: ID = 'fd0', name =
bus block: add device fd0
DEV: registering device: ID = 'fd1', name =
bus block: add device fd1
DEV: registering device: ID = 'floppy0', name = Floppy Drive
bus platform: add device floppy0
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
bus type 'ide' registered
VP_IDE: IDE controller at PCI slot 00:07.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1
ide0: BM-DMA at 0xa000-0xa007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xa008-0xa00f, BIOS settings: hdc:pio, hdd:pio
hda: Maxtor 33073H3, ATA DISK drive
DEV: registering device: ID = 'ide0', name = IDE Controller
hda: DMA disabled
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
DEV: registering device: ID = '0.0', name = IDE Drive
bus ide: add device 0.0
hdc: LITE-ON LTR-40125W, ATAPI CD/DVD-ROM drive
DEV: registering device: ID = 'ide1', name = IDE Controller
hdc: DMA disabled
ide1 at 0x170-0x177,0x376 on irq 15
DEV: registering device: ID = '1.0', name = IDE Drive
bus ide: add device 1.0
PDC20265: IDE controller at PCI slot 00:09.0
PDC20265: chipset revision 2
PDC20265: not 100% native mode: will probe irqs later
PDC20265: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
PDC20265: FORCING BURST BIT 0x00->0x01 ACTIVE
ide2: BM-DMA at 0xbc00-0xbc07, BIOS settings: hde:pio, hdf:pio
ide3: BM-DMA at 0xbc08-0xbc0f, BIOS settings: hdg:DMA, hdh:DMA
hde: IBM-DTLA-307045, ATA DISK drive
DEV: registering device: ID = 'ide2', name = IDE Controller
ide2 at 0xac00-0xac07,0xb002 on irq 16
DEV: registering device: ID = '2.0', name = IDE Drive
bus ide: add device 2.0
HPT370: IDE controller at PCI slot 00:0e.0
HPT370: chipset revision 3
HPT370: not 100% native mode: will probe irqs later
HPT37X: using 33MHz PCI clock
ide4: BM-DMA at 0xe000-0xe007, BIOS settings: hdi:DMA, hdj:pio
ide5: BM-DMA at 0xe008-0xe00f, BIOS settings: hdk:DMA, hdl:pio
hdi: Maxtor 4G120J6, ATA DISK drive
DEV: registering device: ID = 'ide4', name = IDE Controller
ide4 at 0xd000-0xd007,0xd402 on irq 18
DEV: registering device: ID = '4.0', name = IDE Drive
bus ide: add device 4.0
hdk: Maxtor 4G120J6, ATA DISK drive
DEV: registering device: ID = 'ide5', name = IDE Controller
ide5 at 0xd800-0xd807,0xdc02 on irq 18
DEV: registering device: ID = '5.0', name = IDE Drive
bus ide: add device 5.0
driver pci:HPT366 IDE: registering
bus pci: add driver HPT366 IDE
bound device '00:0e.0' to driver 'HPT366 IDE'
driver pci:Promise Old IDE: registering
bus pci: add driver Promise Old IDE
bound device '00:09.0' to driver 'Promise Old IDE'
driver pci:VIA IDE: registering
bus pci: add driver VIA IDE
bound device '00:07.1' to driver 'VIA IDE'
hda: host protected area => 1
hda: 60032448 sectors (30737 MB) w/2048KiB Cache, CHS=3736/255/63, UDMA(100)
DEV: registering device: ID = 'hda', name =
bus block: add device hda
hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 >
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
DEV: registering device: ID = 'p5', name =
DEV: registering device: ID = 'p6', name =
DEV: registering device: ID = 'p7', name =
DEV: registering device: ID = 'p8', name =
DEV: registering device: ID = 'p9', name =
DEV: registering device: ID = 'p10', name =
DEV: registering device: ID = 'p11', name =
DEV: registering device: ID = 'p12', name =
hde: host protected area => 1
hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63, UDMA(100)
DEV: registering device: ID = 'hde', name =
bus block: add device hde
hde: hde1 hde2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
hdi: host protected area => 1
hdi: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=14946/255/63, UDMA(100)
DEV: registering device: ID = 'hdi', name =
bus block: add device hdi
hdi: hdi1 hdi2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
hdk: host protected area => 1
hdk: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=14946/255/63, UDMA(100)
DEV: registering device: ID = 'hdk', name =
bus block: add device hdk
hdk: hdk1 hdk2
DEV: registering device: ID = 'p1', name =
DEV: registering device: ID = 'p2', name =
driver ide:ide-disk: registering
bus ide: add driver ide-disk
ide-cd: passing drive hdc to ide-scsi emulation.
driver ide:ide-cdrom: registering
bus ide: add driver ide-cdrom
SCSI subsystem driver Revision: 1.00
bus type 'scsi' registered
sym53c8xx: at PCI bus 0, device 10, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c860 detected
sym53c860-0: rev 0x13 on pci bus 0 device 10 function 0 irq 17
sym53c860-0: ID 7, Fast-20, Parity Checking
Debug: sleeping function called from illegal context at include/asm/semaphore.h:119
Call Trace:
[<c0118d04>] __might_sleep+0x54/0x58
[<c01c22b7>] get_device+0x17/0x70
[<c01c2231>] device_initialize+0x61/0x68
[<c01c2266>] device_register+0x2e/0x68
[<c0120d45>] tasklet_hi_action+0x85/0xe0
[<c0120a4a>] do_softirq+0x5a/0xac
[<c01138af>] smp_apic_timer_interrupt+0x113/0x124
[<c0107be2>] apic_timer_interrupt+0x1a/0x20
[<c0120d45>] tasklet_hi_action+0x85/0xe0
[<c0120a4a>] do_softirq+0x5a/0xac
[<c01138af>] smp_apic_timer_interrupt+0x113/0x124
[<c0107be2>] apic_timer_interrupt+0x1a/0x20
[<c022aedd>] matrox_cfbX_putcs+0x1f9/0x260
[<c0138eb0>] __alloc_pages+0x90/0x25c
[<c01390b6>] __get_free_pages+0x3a/0x40
[<c0135048>] do_ccupdate_local+0x0/0x34
[<c0135048>] do_ccupdate_local+0x0/0x34
[<c0135036>] smp_call_function_all_cpus+0x1a/0x2c
[<c013580e>] kmem_cache_alloc+0x22/0x16c
[<c015a730>] alloc_inode+0x30/0x180
[<c015a7f3>] alloc_inode+0xf3/0x180
[<c015aed7>] new_inode+0xb/0x88
[<c016ea04>] driverfs_get_inode+0x10/0xdc
[<c016eb0d>] driverfs_mknod+0x3d/0x48
[<c016eb37>] driverfs_mkdir+0x1f/0x2c
[<c016f2a2>] driverfs_create_dir+0x9e/0xd0
[<c01c4195>] device_create_dir+0x15/0x1c
[<c01c437c>] bus_make_dir+0x4c/0x58
[<c01c31df>] put_bus+0x13/0x80
[<c01c32ec>] bus_register+0xa0/0xa8
[<c01fffd9>] scsi_register_host+0x39/0x1e4
[<c01050ab>] init+0x47/0x1ac
[<c0105064>] init+0x0/0x1ac
[<c01054f1>] kernel_thread_helper+0x5/0xc
DEV: registering device: ID = 'scsi0', name = sym53c8xx
scsi0 : sym53c8xx-1.7.3c-20010512
DEV: registering device: ID = 'scsi0', name = sym53c8xx
sym53c860-0-<1,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
Vendor: TOSHIBA Model: DVD-ROM SD-M1401 Rev: 1007
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:1:0', name =
bus scsi: add device 0:0:1:0
sym53c860-0-<2,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 8)
Vendor: PLEXTOR Model: CD-ROM PX-32TS Rev: 1.02
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:2:0', name =
bus scsi: add device 0:0:2:0
sym53c860-0-<5,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 7)
Vendor: YAMAHA Model: CRW2100S Rev: 1.0N
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '0:0:5:0', name = ZYAMAHA CRW2100S 1.0N
bus scsi: add device 0:0:5:0
driver ide:ide-scsi: registering
bus ide: add driver ide-scsi
scsi1 : SCSI host adapter emulation for IDE ATAPI devices
DEV: registering device: ID = 'scsi1', name = ide-scsi
Vendor: LITE-ON Model: LTR-40125W Rev: WS05
Type: CD-ROM ANSI SCSI revision: 02
DEV: registering device: ID = '1:0:0:0', name =
bus scsi: add device 1:0:0:0
st: Version 20021015, fixed bufsize 32768, wrt 30720, s/g segs 256
driver scsi:st: registering
bus scsi: add driver st
driver scsi:sd: registering
bus scsi: add driver sd
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 1, lun 0
Attached scsi CD-ROM sr1 at scsi0, channel 0, id 2, lun 0
Attached scsi CD-ROM sr2 at scsi0, channel 0, id 5, lun 0
Attached scsi CD-ROM sr3 at scsi1, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 40x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
DEV: registering device: ID = 'sr0', name =
bus block: add device sr0
sr1: scsi-1 drive
DEV: registering device: ID = 'sr1', name =
bus block: add device sr1
sr2: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
DEV: registering device: ID = 'sr2', name =
bus block: add device sr2
sr3: scsi3-mmc drive: 12x/12x writer cd/rw xa/form2 cdda tray
DEV: registering device: ID = 'sr3', name =
bus block: add device sr3
driver scsi:sr: registering
bus scsi: add driver sr
DEV: registering device: ID = '0:0:1:0:gen', name = generic
bus scsi: add device 0:0:1:0:gen
DEV: registering device: ID = '0:0:2:0:gen', name = generic
bus scsi: add device 0:0:2:0:gen
DEV: registering device: ID = '0:0:5:0:gen', name = ZYAMAHA CRW2100S 1.0Ngeneric
bus scsi: add device 0:0:5:0:gen
DEV: registering device: ID = '1:0:0:0:gen', name = generic
bus scsi: add device 1:0:0:0:gen
driver scsi:sg: registering
bus scsi: add driver sg
bound device '0:0:1:0:gen' to driver 'sg'
bound device '0:0:2:0:gen' to driver 'sg'
bound device '0:0:5:0:gen' to driver 'sg'
bound device '1:0:0:0:gen' to driver 'sg'
matroxfb_crtc2: secondary head of fb0 was registered as fb1
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.0
driver pci:uhci-hcd: registering
bus pci: add driver uhci-hcd
drivers/usb/core/hcd-pci.c: uhci-hcd @ 00:07.2, VIA Technologies, Inc. USB
drivers/usb/core/hcd-pci.c: irq 19, io base 0000a400
drivers/usb/core/hcd.c: new USB bus registered, assigned bus number 1
DEV: registering device: ID = 'usb1', name = USB device 0000:0000
bus usb: add device usb1
bound device 'usb1' to driver 'generic'
DEV: registering device: ID = '1-0:0', name = usb-00:07.2-0 interface 0
bus usb: add device 1-0:0
drivers/usb/core/hub.c: USB hub found at 0
drivers/usb/core/hub.c: 2 ports detected
bound device '1-0:0' to driver 'hub'
bound device '00:07.2' to driver 'uhci-hcd'
drivers/usb/core/hcd-pci.c: uhci-hcd @ 00:07.3, VIA Technologies, Inc. USB (#2)
drivers/usb/core/hcd-pci.c: irq 19, io base 0000a800
drivers/usb/core/hcd.c: new USB bus registered, assigned bus number 2
DEV: registering device: ID = 'usb2', name = USB device 0000:0000
bus usb: add device usb2
bound device 'usb2' to driver 'generic'
DEV: registering device: ID = '2-0:0', name = usb-00:07.3-0 interface 0
bus usb: add device 2-0:0
drivers/usb/core/hub.c: USB hub found at 0
drivers/usb/core/hub.c: 2 ports detected
bound device '2-0:0' to driver 'hub'
bound device '00:07.3' to driver 'uhci-hcd'
driver usb:usblp: registering
bus usb: add driver usblp
drivers/usb/core/usb.c: registered new driver usblp
drivers/usb/class/usblp.c: v0.12: USB Printer Device Class driver
driver usb:usbscanner: registering
bus usb: add driver usbscanner
drivers/usb/core/usb.c: registered new driver usbscanner
drivers/usb/image/scanner.c: 0.4.6:USB Scanner Driver
register interface 'mouse' with class 'input
mice: PS/2 mouse device common for all mice
input: PC Speaker
input: ImPS/2 Generic Wheel Mouse on isa0060/serio1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Set 2 keyboard on isa0060/serio0
serio: i8042 KBD port at 0x60,0x64 irq 1
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
8regs : 1152.000 MB/sec
32regs : 896.000 MB/sec
pIII_sse : 1396.000 MB/sec
pII_mmx : 1568.000 MB/sec
p5_mmx : 1632.000 MB/sec
raid5: using function: pIII_sse (1396.000 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Advanced Linux Sound Architecture Driver Version 0.9.0rc3 (Mon Oct 14 16:41:26 2002 UTC).
request_module[snd-card-0]: not ready
request_module[snd-card-1]: not ready
request_module[snd-card-2]: not ready
request_module[snd-card-3]: not ready
request_module[snd-card-4]: not ready
request_module[snd-card-5]: not ready
request_module[snd-card-6]: not ready
request_module[snd-card-7]: not ready
driver pci:EMU10K1/Audigy: registering
bus pci: add driver EMU10K1/Audigy
bound device '00:0b.0' to driver 'EMU10K1/Audigy'
ALSA device list:
#0: Sound Blaster Live! at 0xc400, irq 17
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 332k freed
Adding 1574328k swap on /dev/hda9. Priority:-1 extents:1
Real Time Clock Driver v1.11
8139too Fast Ethernet driver 0.9.26
driver pci:8139too: registering
bus pci: add driver 8139too
eth0: RealTek RTL8139 Fast Ethernet at 0xfa924000, 00:10:a7:0b:35:1c, IRQ 19
eth0: Identified 8139 chip type 'RTL-8139C'
bound device '00:0c.0' to driver '8139too'
DEV: registering device: ID = 'loop0', name =
bus block: add device loop0
DEV: registering device: ID = 'loop1', name =
bus block: add device loop1
DEV: registering device: ID = 'loop2', name =
bus block: add device loop2
DEV: registering device: ID = 'loop3', name =
bus block: add device loop3
DEV: registering device: ID = 'loop4', name =
bus block: add device loop4
DEV: registering device: ID = 'loop5', name =
bus block: add device loop5
DEV: registering device: ID = 'loop6', name =
bus block: add device loop6
DEV: registering device: ID = 'loop7', name =
bus block: add device loop7
loop: loaded (max 8 devices)
Linux agpgart interface v0.99 (c) Jeff Hartmann
driver pci:agpgart: registering
bus pci: add driver agpgart
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected Via Apollo Pro chipset
agpgart: AGP aperture is 256M @ 0xc0000000
bound device '00:00.0' to driver 'agpgart'
[drm] AGP 0.99 on VIA Apollo Pro @ 0xc0000000 256MB
[drm] Initialized mga 3.0.2 20010321 on minor 0
NTFS driver 2.1.0 [Flags: R/O MODULE].
udf: registering filesystem
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide2(33,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide2(33,1)) for (ide2(33,1))
Using r5 hash to sort names
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.16, 02 Dec 2001 on ide0(3,10), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide0(3,11), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide0(3,11)) for (ide0(3,11))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide0(3,12), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide0(3,12)) for (ide0(3,12))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide2(33,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide2(33,2)) for (ide2(33,2))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide4(56,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide4(56,1)) for (ide4(56,1))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide4(56,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide4(56,2)) for (ide4(56,2))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide5(57,1), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide5(57,1)) for (ide5(57,1))
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device ide5(57,2), size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
reiserfs: checking transaction log (ide5(57,2)) for (ide5(57,2))
Using r5 hash to sort names
NTFS volume version 3.0.
FAT: Unrecognized mount option mode
eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability 45e1.
--
Your taste always tended to the extreme, but I think you've really
outdone yourself this time. You've progressed from the disturbed to
the actually psychotic.
Simon R Green - Deathstalker War
GNU/Linux 2.5.44 SMP/ReiserFS 2x1380 bogomips load av: 0.67 0.22 0.07
On Mon, 21 Oct 2002, Jurriaan wrote:
> I tried this patch:
...
> and it didn't work - still hangs in 'Shutting down devices'.
> and I see a loop when shutting down:
>
> ID 'scsi0'
> ID '0:0:1:0:gen'
> ID '0:0:1:0'
> ID '0:0:2:0:gen'
> ID '0:0:5:0:gen'
> ID '0:0:5:0'
> ID 'scsi0'
>
> and then it goes on to 0:0:1:0:gen and repeats itself.
>
> With the crude '>128 devices, skip the rest of it' above, it actually
> shuts down. I still wonder if this warning about might-sleep in my dmesg
> can have anything to do with this; it occurs just when registering the
> scsi card. A full dmesg has been attached.
It is related to the __might_sleep() dump on boot, but not necessarily
because of it. In short, Mike Anderson posted the patch I've appended.
That should fix it. Could you please try it?
The problem again is ncr_attach() in sym5c8xx.c. It's calling
scsi_set_pci_device(), which is registering the device a second time.
[ A note on that: the reason I didn't find this before is that it's a
static inline in drivers/scsi/host.h, and I was grepping through .c files
only. Does this really need to be static inline? It doesn't appear so. ]
The dump happens because ncr_attach(), on line 5838, NCR_LOCK()
(homebrewed locking macro wrappers for compatability) is called (which
does a spin_lock_irqsave()), and is held until line 5908. That's not
necessarily an ungodly long time, but probably unncessary.
scsi_set_pci_device() is called on line 5893, which calls
device_register(), which calls functions that can definitely sleep.
-pat
--- 1.19/drivers/scsi/hosts.h Wed Oct 16 17:53:47 2002
+++ edited/drivers/scsi/hosts.h Sun Oct 20 19:45:35 2002
@@ -551,9 +551,6 @@
{
shost->pci_dev = pdev;
shost->host_driverfs_dev.parent=&pdev->dev;
-
- /* register parent with driverfs */
- device_register(&shost->host_driverfs_dev);
}
From: Patrick Mansfield <[email protected]>
Date: Mon, Oct 21, 2002 at 08:44:25AM -0700
> On Mon, Oct 21, 2002 at 07:36:22AM +0200, Jurriaan wrote:
> > I tried this patch:
> >
>
> Mike meant try his patch or my patch, not Patrick Mochel's, just remove one
> of the two duplicate calls to device_register(&shost->host_driverfs_dev),
> either the one in scsi_register_host or the one in scsi_set_pci_device
> and try again.
>
Excellent work. With this patch:
--- 1.19/drivers/scsi/hosts.h Wed Oct 16 17:53:47 2002
+++ edited/drivers/scsi/hosts.h Sun Oct 20 19:45:35 2002
@@ -551,9 +551,6 @@
{
shost->pci_dev = pdev;
shost->host_driverfs_dev.parent=&pdev->dev;
-
- /* register parent with driverfs */
- device_register(&shost->host_driverfs_dev);
}
and this patch from Manfred Spraul
--- a/arch/i386/kernel/apm.c 2002-10-12 06:21:05.000000000 +0200
+++ b/arch/i386/kernel/apm.new 2002-10-20 19:48:30.000000000 +0200
@@ -912,10 +911,10 @@
#ifdef CONFIG_SMP
/* Some bioses don't like being called from CPU != 0 */
if (smp_processor_id() != 0) {
- current->cpus_allowed = 1;
- schedule();
- if (unlikely(smp_processor_id() != 0))
- BUG();
+ if (cpu_online(0))
+ set_cpus_allowed(current, 1);
+ else
+ printk(KERN_INFO "apm: CPU 0 is offline, trying apm shutdown from cpu %d\n", smp_processor_id());
}
#endif
if (apm_info.realmode_power_off)
@@ -1693,10 +1692,10 @@
* Method suggested by Ingo Molnar.
*/
if (smp_processor_id() != 0) {
- current->cpus_allowed = 1;
- schedule();
- if (unlikely(smp_processor_id() != 0))
- BUG();
+ if (cpu_online(0))
+ set_cpus_allowed(current, 1);
+ else
+ printk(KERN_INFO "apm: CPU 0 is offline, trying apm shutdown from cpu %d\n", smp_processor_id());
}
#endif
All my problems are over - shutdown works perfectly here.
Thanks, everybody!
Jurriaan
--
The absence of alternatives clears the mind marvelously.
Henry Kissinger
GNU/Linux 2.5.44 SMP/ReiserFS 2x1380 bogomips load av: 3.48 2.08 1.08