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Subject2.4.8-ac6 panic in schedule
Hi,

I just got a kernel panic. The machine froze so I had to
hand copy the oops from the screen!

At the time I was initiating isdn callout ("isdnctrl dial ippp0").
Otherwise the machine has been stable for a long time.

=========================================================================
isdn_ppp_xmit: lp->ppp_slot -1
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0111a80>]
EFLAGS: 00010296
eax: 00000018 ebx: c166c000 ecx: c1860000 edx: 00000001
esi: 00000000 edi: c11d57a0 ebp: c166df98 esp: c166df74
ds: 0000 es: 0018 ss: 0018
Process named (pid: 296, stackpage=c166d000)
Stack: c01ed1d6 00000004 c166c000 00000000 c166c000 40640654 c166c000 00000000
00000000 c166dfc4 c0105dcb 80004003 00000000 00004003 00000000 c166c000
406409ac 400575e8 40640994 c0106d1b 406409ac 00000008 403ee264 406409ac
Code: 0f 0b 8d 65 f4 5b 5e 5f 5d c3 8d b6 00 00 00 00 8b 45 e8 c1
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
=========================================================================

The output from ksymoops follows.

=========================================================================
ksymoops 2.4.1 on i686 2.4.8-ac6. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.8-ac6/ (default)
-m /boot/System.map-2.4.8-ac6 (specified)

invalid operand: 0000
CPU: 0
EIP: 0010:[<c0111a80>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010296
eax: 00000018 ebx: c166c000 ecx: c1860000 edx: 00000001
esi: 00000000 edi: c11d57a0 ebp: c166df98 esp: c166df74
ds: 0000 es: 0018 ss: 0018
Process named (pid: 296, stackpage=c166d000)
Stack: c01ed1d6 00000004 c166c000 00000000 c166c000 40640654 c166c000 00000000
00000000 c166dfc4 c0105dcb 80004003 00000000 00004003 00000000 c166c000
406409ac 400575e8 40640994 c0106d1b 406409ac 00000008 403ee264 406409ac
Code: 0f 0b 8d 65 f4 5b 5e 5f 5d c3 8d b6 00 00 00 00 8b 45 e8 c1

>>EIP; c0111a80 <schedule+50/3a0> <=====
Code; c0111a80 <schedule+50/3a0>
00000000 <_EIP>:
Code; c0111a80 <schedule+50/3a0> <=====
0: 0f 0b ud2a <=====
Code; c0111a82 <schedule+52/3a0>
2: 8d 65 f4 lea 0xfffffff4(%ebp),%esp
Code; c0111a85 <schedule+55/3a0>
5: 5b pop %ebx
Code; c0111a86 <schedule+56/3a0>
6: 5e pop %esi
Code; c0111a87 <schedule+57/3a0>
7: 5f pop %edi
Code; c0111a88 <schedule+58/3a0>
8: 5d pop %ebp
Code; c0111a89 <schedule+59/3a0>
9: c3 ret
Code; c0111a8a <schedule+5a/3a0>
a: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
Code; c0111a90 <schedule+60/3a0>
10: 8b 45 e8 mov 0xffffffe8(%ebp),%eax
Code; c0111a93 <schedule+63/3a0>
13: c1 00 00 roll $0x0,(%eax)

<0>Kernel panic: Aiee, killing interrupt handler!
=========================================================================

If I can supply any more information, please let me know.

Regards,
--
Eiki
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