Yes this is 2.6.8.1, changed the version to agrre with x.y.z :-(
No patches, vanilla.
I did `mount /mnt/cdrom` and mounted a CD-R with some HTML/JPG data and looked through it (with Mozilla).
Then tried `eject /mnt/cdrom` and the command hang, so I checked dmesg:
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
Unable to handle kernel paging request at virtual address bb726bfc
printing eip:
c0151ff7
....
Runnig it through ksymoops gives:
ksymoops 2.4.9 on i686 2.6.8-KK1_sata. Options used
-V (default)
-k /proc/kallsyms (specified)
-l /proc/modules (default)
-o /lib/modules/2.6.8-KK1_sata/ (default)
-m /var/tmp/kernels/2.6.8-KK1_sata/System.map (specified)
Warning (read_ksyms): no kernel symbols in ksyms, is /proc/kallsyms a valid ksyms file?
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel paging request at virtual address bb726bfc
c0151ff7
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c0151ff7>] Tainted: P
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010287 (2.6.8-KK1_sata)
eax: bb726c28 ebx: e8726c28 ecx: bb726c28 edx: e8726b54
esi: e8726b54 edi: 00000001 ebp: c19a8000 esp: c19a9ed4
ds: 007b es: 007b ss: 0068
Stack: e8726b54 e8726b5c e8726b54 00000004 c0169bff e8726b54 00000000 00000004
e8726d1c eb1c329c 00000080 00000000 c19a8000 f7ffea20 c0169cf0 00000080
c013cb2b 00000080 000000d0 00035a3b 00324b00 00000000 0000000f 00000000
Call Trace:
[<c0169bff>] prune_icache+0x14f/0x200
[<c0169cf0>] shrink_icache_memory+0x40/0x50
[<c013cb2b>] shrink_slab+0x14b/0x190
[<c013df2d>] balance_pgdat+0x1ed/0x230
[<c013e037>] kswapd+0xc7/0xe0
[<c0116fb0>] autoremove_wake_function+0x0/0x60
[<c0105ade>] ret_from_fork+0x6/0x14
[<c0116fb0>] autoremove_wake_function+0x0/0x60
[<c013df70>] kswapd+0x0/0xe0
[<c0103d91>] kernel_thread_helper+0x5/0x14
Code: 8b 41 d4 a8 02 75 38 8b 01 8b 51 04 89 50 04 89 02 89 49 04
>>EIP; c0151ff7 <remove_inode_buffers+37/80> <=====
>>eax; bb726c28 <__crc_xfrm_get_acqseq+1537eb/401042>
>>ebx; e8726c28 <__crc_pci_do_scan_bus+557ba/28a863>
>>ecx; bb726c28 <__crc_xfrm_get_acqseq+1537eb/401042>
>>edx; e8726b54 <__crc_pci_do_scan_bus+556e6/28a863>
>>esi; e8726b54 <__crc_pci_do_scan_bus+556e6/28a863>
>>ebp; c19a8000 <__crc_unregister_chrdev+7ab6f/23ebeb>
>>esp; c19a9ed4 <__crc_unregister_chrdev+7ca43/23ebeb>
Trace; c0169bff <prune_icache+14f/200>
Trace; c0169cf0 <shrink_icache_memory+40/50>
Trace; c013cb2b <shrink_slab+14b/190>
Trace; c013df2d <balance_pgdat+1ed/230>
Trace; c013e037 <kswapd+c7/e0>
Trace; c0116fb0 <autoremove_wake_function+0/60>
Trace; c0105ade <ret_from_fork+6/14>
Trace; c0116fb0 <autoremove_wake_function+0/60>
Trace; c013df70 <kswapd+0/e0>
Trace; c0103d91 <kernel_thread_helper+5/14>
Code; c0151ff7 <remove_inode_buffers+37/80>
00000000 <_EIP>:
Code; c0151ff7 <remove_inode_buffers+37/80> <=====
0: 8b 41 d4 mov 0xffffffd4(%ecx),%eax <=====
Code; c0151ffa <remove_inode_buffers+3a/80>
3: a8 02 test $0x2,%al
Code; c0151ffc <remove_inode_buffers+3c/80>
5: 75 38 jne 3f <_EIP+0x3f>
Code; c0151ffe <remove_inode_buffers+3e/80>
7: 8b 01 mov (%ecx),%eax
Code; c0152000 <remove_inode_buffers+40/80>
9: 8b 51 04 mov 0x4(%ecx),%edx
Code; c0152003 <remove_inode_buffers+43/80>
c: 89 50 04 mov %edx,0x4(%eax)
Code; c0152006 <remove_inode_buffers+46/80>
f: 89 02 mov %eax,(%edx)
Code; c0152008 <remove_inode_buffers+48/80>
11: 89 49 04 mov %ecx,0x4(%ecx)
1 warning issued. Results may not be reliable.
# uname -a
Linux sata 2.6.8-KK1_sata #4 Sat Aug 21 21:35:05 JST 2004 i686 AMD Athlon(tm) XP 2500+ AuthenticAMD GNU/Linux
# grep cdrom /etc/fstab
/dev/hdd /mnt/cdrom iso9660 noauto,user,ro 0 0
# cat /proc/ide/hdd/{model,driver,settings}
PLEXTOR DVDR PX-712A
ide-cdrom version 4.61
name value min max mode
---- ----- --- --- ----
current_speed 66 0 70 rw
dsc_overlap 1 0 1 rw
ide-scsi 0 0 1 rw
init_speed 12 0 70 rw
io_32bit 1 0 3 rw
keepsettings 0 0 1 rw
nice1 1 0 1 rw
number 3 0 3 rw
pio_mode write-only 0 255 w
unmaskirq 1 0 1 rw
using_dma 1 0 1 rw
I tried to reproduce the oops, but to no avail till now. It may be the CD-R as it is a bit "strange", I have my CT scans from the hospital in DICOM format (+jpg) :-(
Kalin.
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