Oops with 2.4.20 when accessing SVCDs

Kurt Huwig (k.huwig@iku-ag.de)
Tue, 31 Dec 2002 16:36:22 +0100


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I got the attached oops when copying a file from a SVCD using cdfs-0.5c

I mounted a SVCD using

mount -t cdfs /dev/cdbrenner /cdbrenner

using the cdfs driver from

http://www.elis.rug.ac.be/~ronsse/cdfs/cdfs.html

and then copied one of the files on the CD with

cp /cdbrenner/videocd-1.mpeg ~/film.mpg

after some time (copied file size is 168996864 bytes while original file
size is 820799616), the oops happened.

Kernels is a self compiled vanilla:

Linux version 2.4.20 (root@Knoppix) (gcc version 2.95.4 20011002 (Debian
prerelease)) #1 Tue Dec 31 15:23:18 CET 2002

Target filesystem is ReiserFS, but it happened with Ext3 as well (just
switched to ReiserFS to make sure it isn't the Ext3 code).

The CD-ROM is an ATAPI-CD-writer

lobo:~# cat /proc/ide/hdc/model
HL-DT-ST GCE-8320B

using 'ide-scsi':

lobo:~# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: HL-DT-ST Model: CD-RW GCE-8320B Rev: 1.04
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: MT1316B Model: BDV212B Rev: 0p40
Type: CD-ROM ANSI SCSI revision: 02

lobo:~# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(TM) XP 2100+
stepping : 2
cpu MHz : 1735.486
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 : 3460.30

This is my current list of modules but I did only do a reboot. The
'tainted' comes from the nVidia driver, but it wasn't loaded when the
oops appeared, i.e. the kernel was not tainted at this time. Also there
was no ppp module etc.

lobo:~# lsmod
Module Size Used by Tainted: P
sr_mod 12248 2 (autoclean)
cdrom 29312 0 (autoclean) [sr_mod]
cdfs 13860 2 (autoclean)
ppp_deflate 3008 0 (autoclean)
zlib_deflate 17984 0 (autoclean) [ppp_deflate]
bsd_comp 4032 0 (autoclean)
ppp_async 6592 1 (autoclean)
af_packet 12040 2 (autoclean)
agpgart 16128 3 (autoclean)
NVdriver 945888 10 (autoclean)
parport_pc 21384 1 (autoclean)
lp 6592 0 (autoclean)
parport 24992 1 (autoclean) [parport_pc lp]
ppp_generic 20236 3 (autoclean) [ppp_deflate bsd_comp
ppp_async]
slhc 4704 0 (autoclean) [ppp_generic]
8139too 15520 1 (autoclean)
mii 2320 0 (autoclean) [8139too]
ehci-hcd 14656 0 (unused)
cmpci 30388 1
soundcore 3684 4 [cmpci]
ide-scsi 7744 1
scsi_mod 88808 2 [sr_mod ide-scsi]
usbmouse 1856 0 (unused)
mousedev 3904 1
keybdev 1696 0 (unused)
usbkbd 2944 0 (unused)
input 3424 0 [usbmouse mousedev keybdev usbkbd]
usb-uhci 21796 0 (unused)
usbcore 56032 1 [ehci-hcd usbmouse usbkbd usb-uhci]
rtc 6012 0 (autoclean)
unix 13892 106 (autoclean)

Any help would be appreciated.

And a happy new year!

Kurt

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ksymoops 2.4.5 on i686 2.4.20. Options used
-V (default)
-k ksymoops/20021231154911.ksyms (specified)
-l ksymoops/20021231154911.modules (specified)
-o /lib/modules/2.4.20/ (default)
-m /boot/System.map-2.4.20 (default)

Dec 31 15:51:57 lobo kernel: c012d8d4
Dec 31 15:51:57 lobo kernel: Oops: 0002
Dec 31 15:51:57 lobo kernel: CPU: 0
Dec 31 15:51:57 lobo kernel: EIP: 0010:[kmem_cache_alloc+148/224] Not tainted
Dec 31 15:51:57 lobo kernel: EFLAGS: 00010046
Dec 31 15:51:57 lobo kernel: eax: 3939525f ebx: c6df8240 ecx: c6df8000 edx: 3e2a5ed0
Dec 31 15:51:57 lobo kernel: esi: cfec0e50 edi: 00000246 ebp: 000000f0 esp: cd98fe78
Dec 31 15:51:57 lobo kernel: ds: 0018 es: 0018 ss: 0018
Dec 31 15:51:57 lobo kernel: Process cp (pid: 284, stackpage=cd98f000)
Dec 31 15:51:57 lobo kernel: Stack: 00000000 00000000 00001000 00000001 c0136e33 cfec0e50 000000f0 c0136efd
Dec 31 15:51:57 lobo kernel: 00000001 c112e244 00000302 c112e244 cfe13d30 c0137127 c112e244 00001000
Dec 31 15:51:57 lobo kernel: 00000001 00000000 c112e244 c01373c8 c112e244 00000302 00001000 00000000
Dec 31 15:51:57 lobo kernel: Call Trace: [get_unused_buffer_head+51/128] [create_buffers+29/224] [create_empty_buffers+23/96] [__block_prepare_write+120/720] [journal_end+22/32]
Dec 31 15:51:57 lobo kernel: Code: 89 42 04 89 10 c7 01 00 00 00 00 c7 41 04 00 00 00 00 8b 06
Using defaults from ksymoops -t elf32-i386 -a i386

>>eax; 3939525f Before first symbol
>>ebx; c6df8240 <_end+6af40e4/105c3ea4>
>>ecx; c6df8000 <_end+6af3ea4/105c3ea4>
>>edx; 3e2a5ed0 Before first symbol
>>esi; cfec0e50 <_end+fbbccf4/105c3ea4>
>>esp; cd98fe78 <_end+d68bd1c/105c3ea4>

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: 89 42 04 mov %eax,0x4(%edx)
Code; 00000003 Before first symbol
3: 89 10 mov %edx,(%eax)
Code; 00000005 Before first symbol
5: c7 01 00 00 00 00 movl $0x0,(%ecx)
Code; 0000000b Before first symbol
b: c7 41 04 00 00 00 00 movl $0x0,0x4(%ecx)
Code; 00000012 Before first symbol
12: 8b 06 mov (%esi),%eax

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