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SubjectRe: IPMI hangup in 2.6.6-rc3
On Wed, 16 Jun 2004, Holger Kiehl wrote:

> On Wed, 16 Jun 2004, Corey Minyard wrote:
>
> > I missed a part of the patch, here is a new one with the include file changes.
> >
> > -Corey
> >
> > Corey Minyard wrote:
> >
> > > Unfortuantely, that fix has some problems, but it was on the right track. I
> > > have a new patch attached; can you try it out? Also, the kernel interface
> > > has not changed. It should be exactly the same as before.
> > >
> > > -Corey
> >
> Yes, with this patch it no longer hangs. But ipmitool still crashes
>
> root@apollo:~# ipmitool -I open sdr list
> Segmentation fault
>
Just when I send the mail I noticed that each time I call ipmitool I get
an oops:

Jun 16 18:43:40 apollo kernel: <1>Unable to handle kernel paging request at virtual address 00100104
Jun 16 18:43:40 apollo kernel: printing eip:
Jun 16 18:43:40 apollo kernel: c013ba4a
Jun 16 18:43:40 apollo kernel: *pde = 00000000
Jun 16 18:43:40 apollo kernel: Oops: 0000 [#54]
Jun 16 18:43:40 apollo kernel: SMP
Jun 16 18:43:40 apollo kernel: Modules linked in: bonding
Jun 16 18:43:40 apollo kernel: CPU: 1
Jun 16 18:43:40 apollo kernel: EIP: 0060:[<c013ba4a>] Not tainted
Jun 16 18:43:40 apollo kernel: EFLAGS: 00010086 (2.6.7)
Jun 16 18:43:40 apollo kernel: EIP is at kfree+0x37/0x66
Jun 16 18:43:40 apollo kernel: eax: 00000001 ebx: ffffffea ecx: 00100100 edx: c1000000
Jun 16 18:43:40 apollo kernel: esi: 000015ec edi: 00000202 ebp: ffffffff esp: f6dcce84
Jun 16 18:43:40 apollo kernel: ds: 007b es: 007b ss: 0068
Jun 16 18:43:40 apollo kernel: Process ipmitool (pid: 19786, threadinfo=f6dcc000 task=c2269360)
Jun 16 18:43:40 apollo kernel: Stack: ffffffea f6dccf6c f6dcceb0 c01dedca f6dccf78 00000000 00000000 ffffffff
Jun 16 18:43:40 apollo kernel: 00000000 f7b8f7c8 000015ec 00000500 c000000f f61ebd80 00000282 f7c8be2c
Jun 16 18:43:40 apollo kernel: c02e9600 f6e8b008 f6e8b008 00000000 00000004 f6dccf6c bffff2c0 f6dccf6c
Jun 16 18:43:40 apollo kernel: Call Trace:
Jun 16 18:43:40 apollo kernel: [<c01dedca>] handle_send_req+0xd3/0xe7
Jun 16 18:43:40 apollo kernel: [<c01df205>] ipmi_ioctl+0x427/0x474
Jun 16 18:43:40 apollo kernel: [<c015ece7>] sys_select+0x21c/0x482
Jun 16 18:43:40 apollo kernel: [<c015e036>] sys_ioctl+0xef/0x223
Jun 16 18:43:40 apollo kernel: [<c0104cf1>] sysenter_past_esp+0x52/0x71
Jun 16 18:43:40 apollo kernel:
Jun 16 18:43:40 apollo kernel: Code: 8b 1c 81 8b 03 3b 43 04 73 18 89 74 83 10 83 03 01 57 9d 8b


>>EIP; c013ba4a No symbols available <=====

Trace; c01dedca No symbols available
Trace; c01df205 No symbols available
Trace; c015ece7 No symbols available
Trace; c015e036 No symbols available
Trace; c0104cf1 No symbols available

Code; c013ba4a No symbols available
00000000 <_EIP>:
Code; c013ba4a No symbols available <=====
0: 8b 1c 81 mov (%ecx,%eax,4),%ebx <=====
Code; c013ba4d No symbols available
3: 8b 03 mov (%ebx),%eax
Code; c013ba4f No symbols available
5: 3b 43 04 cmp 0x4(%ebx),%eax
Code; c013ba52 No symbols available
8: 73 18 jae 22 <_EIP+0x22>
Code; c013ba54 No symbols available
a: 89 74 83 10 mov %esi,0x10(%ebx,%eax,4)
Code; c013ba58 No symbols available
e: 83 03 01 addl $0x1,(%ebx)
Code; c013ba5b No symbols available
11: 57 push %edi
Code; c013ba5c No symbols available
12: 9d popf
Code; c013ba5d No symbols available
13: 8b 00 mov (%eax),%eax

This must be the reason why ipmitool crashes.

Holger
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