Hi,
got this one :(
bk pull from linux-20020923-211332 UTC
Linux megablast 2.5.38 #52 SMP Mon Sep 23 21:52:55 UTC 2002 i686 unknown
gcc version 3.2
binutils-2.13.90.0.4
could be related to sym53c416 module re-loading (after cli() removal; see
diff I posted some minutes ago). Seems the driver needs more cleanup ...
--- dmesg extract ---
scsi: device set offline - command error recover failed: host 0 channel 0 id 3 lun 0
Trying to free free IRQ5
scsi : 1 host left.
Unable to handle kernel paging request at virtual address da68a828
....
--- more down under ---
ksymoops 2.4.6 on i686 2.5.38. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.5.38/ (specified)
-m /usr/src/linux/System.map (specified)
cpu: 0, clocks: 100211, slice: 3036
cpu: 1, clocks: 100211, slice: 3036
CPU 1 IS NOW UP!
3c59x: Donald Becker and others. http://www.scyld.com/network/vortex.html
ac97_codec: AC97 codec, id: 0x5452:0x4103 (TriTech TR28023)
Unable to handle kernel paging request at virtual address da68a828
c018b722
*pde = 150bd067
Oops: 0000
CPU: 0
EIP: 0060:[<c018b722>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00013297
eax: da68a828 ebx: 0000000a ecx: da68a828 edx: fffffffe
esi: d1c58119 edi: 00000000 ebp: d1c58fff esp: d3e2fec4
ds: 0068 es: 0068 ss: 0068
Stack: d3e2ff08 d1c58fff 00000f87 00000000 0000000a 0000000a 00000003 00000000
ffffffff ffffffff 00000117 d64b3460 d444cb40 d64b3460 c015fd22 d1c58117
00000ee9 c0273c36 d3e2ff28 c033274c 00000020 c0109704 d64b3460 c0273c33
Call Trace: [<c015fd22>] [<c0109704>] [<c015f702>] [<c014256a>] [<c01426fe>]
[<c010796f>]
Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 83 e7 10 89 c3 75
>>EIP; c018b722 <vsnprintf+2d2/450> <=====
>>eax; da68a828 <[scsi_mod].bss.end+2f69/4741>
>>ecx; da68a828 <[scsi_mod].bss.end+2f69/4741>
>>esi; d1c58119 <_end+118d23a5/1852828c>
>>ebp; d1c58fff <_end+118d328b/1852828c>
>>esp; d3e2fec4 <_end+13aaa150/1852828c>
Trace; c015fd22 <seq_printf+52/70>
Trace; c0109704 <show_interrupts+e4/290>
Trace; c015f702 <seq_read+a2/2d0>
Trace; c014256a <vfs_read+ca/110>
Trace; c01426fe <sys_read+3e/60>
Trace; c010796f <syscall_call+7/b>
Code; c018b722 <vsnprintf+2d2/450>
00000000 <_EIP>:
Code; c018b722 <vsnprintf+2d2/450> <=====
0: 80 38 00 cmpb $0x0,(%eax) <=====
Code; c018b725 <vsnprintf+2d5/450>
3: 74 07 je c <_EIP+0xc> c018b72e <vsnprintf+2de/450>
Code; c018b727 <vsnprintf+2d7/450>
5: 40 inc %eax
Code; c018b728 <vsnprintf+2d8/450>
6: 4a dec %edx
Code; c018b729 <vsnprintf+2d9/450>
7: 83 fa ff cmp $0xffffffff,%edx
Code; c018b72c <vsnprintf+2dc/450>
a: 75 f4 jne 0 <_EIP>
Code; c018b72e <vsnprintf+2de/450>
c: 29 c8 sub %ecx,%eax
Code; c018b730 <vsnprintf+2e0/450>
e: 83 e7 10 and $0x10,%edi
Code; c018b733 <vsnprintf+2e3/450>
11: 89 c3 mov %eax,%ebx
Code; c018b735 <vsnprintf+2e5/450>
13: 75 00 jne 15 <_EIP+0x15> c018b737 <vsnprintf+2e7/450>
--
Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
56 69 73 69 74 http://www.zabbadoz.net/
"Bjoern A. Zeeb" wrote:
>
> Hi,
>
> got this one :(
>
> bk pull from linux-20020923-211332 UTC
>
> Linux megablast 2.5.38 #52 SMP Mon Sep 23 21:52:55 UTC 2002 i686 unknown
> gcc version 3.2
> binutils-2.13.90.0.4
>
> could be related to sym53c416 module re-loading (after cli() removal; see
> diff I posted some minutes ago). Seems the driver needs more cleanup ...
>
Well that driver seems to do a request_irq() with no corresponding
free_irq(). If that's the case (ie: if the free_irq isn't performed
in some driver support code) then yup, it will cause an oops in
show_interrupts() after module unload.