Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262525AbTE2TKB (ORCPT ); Thu, 29 May 2003 15:10:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262528AbTE2TKB (ORCPT ); Thu, 29 May 2003 15:10:01 -0400 Received: from minmail.no ([213.160.234.15]:49120 "EHLO new.minmail.no") by vger.kernel.org with ESMTP id S262525AbTE2TJz (ORCPT ); Thu, 29 May 2003 15:09:55 -0400 From: Morten Helgesen Reply-To: morten.helgesen@nextframe.net Organization: Nextframe AS To: William Lee Irwin III Subject: Re: list_head debugging patch Date: Thu, 29 May 2003 21:22:43 +0200 User-Agent: KMail/1.5 References: <20030529130807.GH19818@holomorphy.com> In-Reply-To: <20030529130807.GH19818@holomorphy.com> Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200305292122.44041.morten.helgesen@nextframe.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hey, On Thursday 29 May 2003 15:08, William Lee Irwin III wrote: > This appears to get the kernel to crap its pants in very, very > short order. Given the number of things going wrong, I almost > wonder if I did something wrong. Things get real ugly, really, > really fast. > [snip] I gave this a go - booted without problems. I did some untaring/copying/deleting and didn`t see anything unusual, but a 'dbench 8' died right away. elem = c0509b18, elem->next = c166d9c4, elem->next->prev = c3f71ea8 kernel BUG at include/linux/list.h:45! invalid operand: 0000 [#1] CPU: 1 EIP: 0060:[] Not tainted EFLAGS: 00010096 EIP is at clear_queue_congested+0x78/0xb0 eax: 00000047 ebx: c0509b18 ecx: c04b8d24 edx: c043a8a0 esi: c0509b10 edi: c050db9c ebp: c3f75c00 esp: c3f75be8 ds: 007b es: 007b ss: 0068 Process pdflush (pid: 10, threadinfo=c3f74000 task=c3f73940) Stack: c03d5f60 c0509b18 c166d9c4 c3f71ea8 c0661524 c0695c64 c3f75c20 c02c7c35 c050db9c 00000001 c0695c64 c04b9440 c050db9c c0661524 c3f75c68 c02c8210 c050db9c c0661524 c0695c64 00000200 00000000 014d98bc 00000008 00000008 Call Trace: [] attempt_merge+0xc5/0x100 [] __make_request+0x490/0x610 [] generic_make_request+0x137/0x1d0 [] bio_alloc+0xda/0x1c0 [] submit_bio+0x53/0xa0 [] __block_write_full_page+0x228/0x420 [] block_write_full_page+0xd5/0xe0 [] ext3_get_block+0x0/0xa0 [] ext3_writepage+0x23a/0x440 [] ext3_get_block+0x0/0xa0 [] bget_one+0x0/0x10 [] mpage_writepages+0x32c/0x5f0 [] ext3_writepage+0x0/0x440 [] schedule+0x2f2/0x6f0 [] do_writepages+0x37/0x40 [] __sync_single_inode+0x2c0/0x8f0 [] sync_sb_inodes+0x312/0x7f0 [] blk_congestion_wait+0x94/0xa0 [] writeback_inodes+0x182/0x2b0 [] background_writeout+0xa9/0xe0 [] __pdflush+0x2f7/0x5f0 [] preempt_schedule+0x36/0x50 [] schedule_tail+0xc0/0xe0 [] pdflush+0x0/0x20 [] pdflush+0x11/0x20 [] background_writeout+0x0/0xe0 [] kernel_thread_helper+0x5/0x10 Code: 0f 0b 2d 00 95 42 3d c0 8b 46 08 39 d8 75 09 83 c4 10 5b 5e wli also requested dmesg, so here goes: Linux version 2.5.70list.h (morten@marge) (gcc version 3.2.2) #2 SMP Thu May 29 21:00:25 CEST 2003 Video mode to be used for restore is f00 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000004000000 (usable) BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 64MB LOWMEM available. found SMP MP-table at 000f5810 hm, page 000f5000 reserved twice. hm, page 000f6000 reserved twice. hm, page 000f1000 reserved twice. hm, page 000f2000 reserved twice. On node 0 totalpages: 16384 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 12288 pages, LIFO batch:3 HighMem zone: 0 pages, LIFO batch:1 ACPI: Unable to locate RSDP Intel MultiProcessor Specification v1.1 Virtual Wire compatibility mode. OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000 Processor #0 6:5 APIC version 17 Processor #1 6:5 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: BOOT_IMAGE=2.5.70-list.h ro root=302 console=ttyS0,115200 console=tty0 Initializing CPU#0 PID hash table entries: 512 (order 9: 4096 bytes) Detected 342.640 MHz processor. Console: colour VGA+ 80x25 Calibrating delay loop... 673.79 BogoMIPS Memory: 60132k/65536k available (2846k kernel code, 4924k reserved, 968k data, 180k init, 0k highmem) Security Scaffold v1.0.0 initialized Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) -> /dev -> /dev/console -> /root CPU: L1 I cache: 16K, L1 D cache: 16K CPU: L2 cache: 512K Enabling fast FPU save and restore... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX CPU0: Intel Pentium II (Deschutes) stepping 02 per-CPU timeslice cutoff: 1462.92 usecs. task migration cache decay timeout: 2 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... 684.03 BogoMIPS CPU: L1 I cache: 16K, L1 D cache: 16K CPU: L2 cache: 512K CPU1: Intel Pentium II (Deschutes) stepping 02 Total of 2 processors activated (1357.82 BogoMIPS). ENABLING IO-APIC IRQs Setting 2 in the phys_id_present_map ...changing IO-APIC physical APIC ID to 2 ... ok. ..TIMER: vector=0x31 pin1=2 pin2=0 testing the IO APIC....................... .................................... done. Using local APIC timer interrupts. calibrating APIC timer ... ..... CPU clock speed is 342.0548 MHz. ..... host bus clock speed is 68.0509 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 2 mtrr: v2.0 (20020519) mtrr: your CPUs had inconsistent fixed MTRR settings mtrr: probably your BIOS does not setup all CPUs. mtrr: corrected configuration. Initializing RT netlink socket PCI: PCI BIOS revision 2.10 entry at 0xfb3c0, last bus=1 PCI: Using configuration type 1 BIO: pool of 256 setup, 14Kb (56 bytes/bio) biovec pool[0]: 1 bvecs: 116 entries (12 bytes) biovec pool[1]: 4 bvecs: 116 entries (48 bytes) biovec pool[2]: 16 bvecs: 58 entries (192 bytes) biovec pool[3]: 64 bvecs: 29 entries (768 bytes) biovec pool[4]: 128 bvecs: 14 entries (1536 bytes) biovec pool[5]: 256 bvecs: 7 entries (3072 bytes) ACPI: Subsystem revision 20030522 tbxfroot-0324 [04] acpi_find_root_pointer: RSDP structure not found, AE_NOT_FOUND Flags=8 ACPI: System description tables not found tbxface-0084: *** Error: acpi_load_tables: Could not get RSDP, AE_NOT_FOUND tbxface-0134: *** Error: acpi_load_tables: Could not load tables: AE_NOT_FOUND ACPI: Unable to load the System Description Tables Linux Plug and Play Support v0.96 (c) Adam Belay PnPBIOS: Scanning system for PnP BIOS support... PnPBIOS: Found PnP BIOS installation structure at 0xc00fbff0 PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xc018, dseg 0xf0000 PnPBIOS: 14 nodes reported by PnP BIOS; 14 recorded by driver block request queues: 4/128 requests per read queue 4/128 requests per write queue enter congestion at 15 exit congestion at 17 Linux Kernel Card Services 3.1.22 options: [pci] [cardbus] drivers/usb/core/usb.c: registered new driver usbfs drivers/usb/core/usb.c: registered new driver hub ACPI: ACPI tables contain no PCI IRQ routing entries PCI: Invalid ACPI-PCI IRQ routing table PCI: Probing PCI hardware PCI: Probing PCI hardware (bus 00) PCI: Using IRQ router PIIX [8086/7110] at 00:07.0 PCI->APIC IRQ transform: (B0,I7,P3) -> 19 PCI->APIC IRQ transform: (B0,I10,P0) -> 18 PCI->APIC IRQ transform: (B1,I0,P0) -> 16 IA-32 Microcode Update Driver: v1.11 Enabling SEP on CPU 1 Enabling SEP on CPU 0 Journalled Block Device driver loaded Installing knfsd (copyright (C) 1996 okir@monad.swb.de). udf: registering filesystem Capability LSM initialized Initializing Cryptographic API Limiting direct PCI/PCI transfers. isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found aty128fb: Rage128 BIOS located at e8000000 aty128fb: Rage128 Pro PF (AGP) [chip rev 0x1] 32M 128-bit SDR SGRAM (1:1) fb0: ATY Rage128 frame buffer device on Rage128 Pro PF (AGP) aty128fb: Rage128 MTRR set to ON Console: switching to colour frame buffer device 80x30 pty: 256 Unix98 ptys configured Linux agpgart interface v0.100 (c) Dave Jones agpgart: Detected an Intel 440BX Chipset. agpgart: Maximum main memory to use for agp memory: 28M agpgart: AGP aperture is 64M @ 0xe0000000 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 FDC 0 is a post-1991 82077 loop: loaded (max 8 devices) 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html 00:0a.0: 3Com PCI 3c905B Cyclone 100baseTx at 0xe400. Vers LK1.1.19 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx PIIX4: IDE controller at PCI slot 00:07.1 PIIX4: chipset revision 1 PIIX4: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio hda: WDC WD273BA, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: max request size: 128KiB hda: host protected area => 1 hda: 53464320 sectors (27374 MB) w/1961KiB Cache, CHS=53040/16/63, UDMA(33) hda: hda1 hda2 hda3 hda4 Console: switching to colour frame buffer device 80x30 drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1 uhci-hcd 00:07.2: Intel Corp. 82371AB/EB/MB PIIX4 uhci-hcd 00:07.2: irq 19, io base 0000e000 Please use the 'usbfs' filetype instead, the 'usbdevfs' name is deprecated. uhci-hcd 00:07.2: new USB bus registered, assigned bus number 1 hub 1-0:0: USB hub found hub 1-0:0: 2 ports detected mice: PS/2 mouse device common for all mice 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 oprofile: using NMI interrupt. NET4: Linux TCP/IP 1.0 for NET4.0 IP: routing cache hash table of 256 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 2730) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. BIOS EDD facility v0.09 2003-Jan-22, 1 devices found kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 180k freed Adding 265064k swap on /dev/hda3. Priority:-1 extents:1 EXT3 FS 2.4-0.9.16, 02 Dec 2001 on hda2, internal journal kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.16, 02 Dec 2001 on hda1, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.16, 02 Dec 2001 on hda4, internal journal EXT3-fs: mounted filesystem with ordered data mode. == Morten -- "Livet er ikke for nybegynnere" - sitat fra en klok person. Morten Helgesen UNIX System Administrator & C Developer Nextframe AS morten.helgesen@nextframe.net / 93445641 http://www.nextframe.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/