Hi folks,
Booting into 2.4.20 I found the following warning in my logs:
"Warning: kfree_skb on hard IRQ d0845d25"
Does it ring a bell?
Is it bad ?
Kind regards,
Harm Verhagen
[1.] One line summary of the problem:
Enabling my USB ethernet card gives the warning above.
[2.] Full description of the problem/report:
Steps to reproduce:
1) boot into single mode linux 2.4.20
2) ifup eth0 (my usb ethernet card, using the kaweth.o driver)
3) Warnings are printed.
I did not get these warnings with 2.4.19.
Btw, I had to add the the following line to get the device working with
2.4.19 to get the device recognized.
--- linux-2.4.19/drivers/usb/kaweth.c.org Fri Jul 19 01:38:13 2002
+++ linux-2.4.19/drivers/usb/kaweth.c Tue Jul 23 22:58:15 2002
@@ -143,6 +143,7 @@
{ USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */
{ USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */
{ USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */
+ { USB_DEVICE(0x1485, 0x0001) }, /* Silicom USB-Ethernet Adapter */
{ USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */
{ USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */
{ USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */
[3.] Keywords (i.e., modules, networking, kernel):
kernel, USB
[4.] Kernel version (from /proc/version):
Linux version 2.4.20 (root@pchome) (gcc version 3.2 20020903 (Red Hat
Linux 8.0 3.2-7)) #4 Mon Dec 2 01:03:00 CET 2002
2.4.20: no patches at all.
[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)
No Oops.
I added a show_stack(NULL); where the kernel prints the "Warning:
kfree_skb on hard..." message
Warning: kfree_skb on hard IRQ d0845d25
c0299ef4 d0845d25 00000000 00000000 d0845d25 cf9f42c0 cf6711c0 cf6711c0
00000000 00000000 00000000 cff6199c 00000003 cff61980 cff6199c
d0845e93
cff61980 cf5c1444 00000282 00000000 0001000f 0000a800 cff26d00
04000001
Call Trace: [<d0845d25>] [<d0845d25>] [<d0845e93>] [<c010a3f5>]
[<c010a574>]
[<c0106ea0>] [<c010cb18>] [<c0106ea0>] [<c0106ec3>] [<c0106f32>]
[<c0105000>]
Warning (Oops_read): Code line not seen, dumping what data is available
Trace; d0845d25 <[usb-uhci]process_urb+185/260>
Trace; d0845d25 <[usb-uhci]process_urb+185/260>
Trace; d0845e93 <[usb-uhci]uhci_interrupt+93/170>
Trace; c010a3f5 <handle_IRQ_event+45/70>
Trace; c010a574 <do_IRQ+64/a0>
Trace; c0106ea0 <default_idle+0/30>
Trace; c010cb18 <call_do_IRQ+5/d>
Trace; c0106ea0 <default_idle+0/30>
Trace; c0106ec3 <default_idle+23/30>
Trace; c0106f32 <cpu_idle+42/60>
Trace; c0105000 <_stext+0/0>
[6.] A small shell script or example program which triggers the
problem (if possible)
[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
Linux localhost.localdomain 2.4.20 #4 Mon Dec 2 01:03:00 CET 2002 i686
athlon i386 GNU/Linux
Gnu C 3.2
Gnu make 3.79.1
util-linux 2.11r
mount 2.11r
modutils 2.4.18
e2fsprogs 1.27
reiserfsprogs 3.6.2
PPP 2.4.1
isdn4k-utils 3.1pre4
Linux C Library 2.2.93
Dynamic linker (ldd) 2.2.93
Procps 2.0.7
Net-tools 1.60
Kbd 1.06
Sh-utils 2.0.12
Modules Loaded iptable_filter ip_tables ide-scsi ide-cd cdrom
usb-storage scsi_mod kaweth mousedev keybdev hid input ehci-hcd usb-uhci
usbcore ext3 jbd
[7.2.] Processor information (from /proc/cpuinfo):
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(TM) XP 1800+
stepping : 2
cpu MHz : 1532.941
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3060.53
[7.3.] Module information (from /proc/modules):
iptable_filter 2412 0 (autoclean) (unused)
ip_tables 14648 1 [iptable_filter]
ide-scsi 10512 0
ide-cd 33412 0
cdrom 33312 0 [ide-cd]
usb-storage 61488 0
scsi_mod 106676 2 [ide-scsi usb-storage]
kaweth 18648 1
mousedev 5428 0 (unused)
keybdev 2880 0 (unused)
hid 22020 0 (unused)
input 5696 0 [mousedev keybdev hid]
ehci-hcd 17160 0 (unused)
usb-uhci 26156 0 (unused)
usbcore 76960 1 [usb-storage kaweth hid ehci-hcd
usb-uhci]
ext3 69664 5
jbd 51604 5 [ext3]
[7.4.] Loaded driver and hardware information (/proc/ioports,
/proc/iomem)
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
a400-a41f : VIA Technologies, Inc. USB (#4)
a400-a41f : usb-uhci
a800-a81f : VIA Technologies, Inc. USB (#3)
a800-a81f : usb-uhci
b000-b00f : VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
b000-b007 : ide0
b008-b00f : ide1
b400-b43f : Ensoniq 5880 AudioPCI
b800-b87f : 3Com Corporation 3c905B 100BaseTX [Cyclone]
d000-d0ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
d400-d41f : VIA Technologies, Inc. USB (#2)
d400-d41f : usb-uhci
d800-d81f : VIA Technologies, Inc. USB
d800-d81f : usb-uhci
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-0fffbfff : System RAM
00100000-00228f0b : Kernel code
00228f0c-002970e3 : Kernel data
0fffc000-0fffefff : ACPI Tables
0ffff000-0fffffff : ACPI Non-volatile Storage
d4800000-d480007f : 3Com Corporation 3c905B 100BaseTX [Cyclone]
d5000000-d50000ff : Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+
d5800000-d58000ff : VIA Technologies, Inc. USB 2.0
d5800000-d58000ff : ehci-hcd
d6000000-d75fffff : PCI Bus #01
d6000000-d6ffffff : nVidia Corporation NV17 [GeForce4 MX440]
d7700000-dfffffff : PCI Bus #01
d7800000-d787ffff : nVidia Corporation NV17 [GeForce4 MX440]
d8000000-dfffffff : nVidia Corporation NV17 [GeForce4 MX440]
e0000000-e7ffffff : VIA Technologies, Inc. VT8367 [KT266]
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
ffff0000-ffffffff : reserved
[7.5.] PCI information ('lspci -vvv' as root)
00:00.0 Host bridge: VIA Technologies, Inc. VT8367 [KT266]
Subsystem: Asustek Computer, Inc. A7V333
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2,x4
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:01.0 PCI bridge: VIA Technologies, Inc. VT8367 [KT333 AGP] (prog-if
00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000dfff
Memory behind bridge: d6000000-d75fffff
Prefetchable memory behind bridge: d7700000-dfffffff
BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:09.0 USB Controller: VIA Technologies, Inc. USB (rev 50) (prog-if 00
[UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8080
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin A routed to IRQ 5
Region 4: I/O ports at d800 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:09.1 USB Controller: VIA Technologies, Inc. USB (rev 50) (prog-if 00
[UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8080
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin B routed to IRQ 11
Region 4: I/O ports at d400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:09.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 51) (prog-if
20 [EHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8080
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin C routed to IRQ 10
Region 0: Memory at d5800000 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at d000 [size=256]
Region 1: Memory at d5000000 (32-bit, non-prefetchable) [size=256]
Expansion ROM at <unassigned> [disabled] [size=64K]
00:0e.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
(rev 30)
Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at b800 [size=128]
Region 1: Memory at d4800000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:0f.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02)
Subsystem: Ensoniq Creative Sound Blaster AudioPCI128
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (3000ns min, 32000ns max)
Interrupt: pin A routed to IRQ 3
Region 0: I/O ports at b400 [size=64]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233A ISA Bridge
Subsystem: Asustek Computer, Inc.: Unknown device 808c
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586B PIPC Bus Master
IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: Asustek Computer, Inc.: Unknown device 808c
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 0
Region 4: I/O ports at b000 [size=16]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.2 USB Controller: VIA Technologies, Inc. USB (rev 23) (prog-if 00
[UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 808c
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at a800 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.3 USB Controller: VIA Technologies, Inc. USB (rev 23) (prog-if 00
[UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 808c
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at a400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4
MX440] (rev a3) (prog-if 00 [VGA])
Subsystem: LeadTek Research Inc.: Unknown device 2870
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at d6000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d8000000 (32-bit, prefetchable) [size=128M]
Region 2: Memory at d7800000 (32-bit, prefetchable) [size=512K]
Expansion ROM at d77e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2,x4
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
[7.6.] SCSI information (from /proc/scsi/scsi)
[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):
--
Harm Verhagen <[email protected]>