[BUG] 2.5.31 qlogicisp oops

From: William Lee Irwin III (wli@holomorphy.com)
Date: Tue Aug 13 2002 - 18:39:52 EST


SCSI aficionados, enjoy. Seen on 2.5.31.

Cheers,
Bill

ksymoops 2.4.6 on i686 2.5.31. Options used
     -v vmlinux-2.5.31-akpm-11 (specified)
     -K (specified)
     -L (specified)
     -o /lib/modules/2.5.31/ (default)
     -m /boot/System.map-2.5.31-akpm-11 (specified)

No modules in ksyms, skipping objects
Reading Oops report from the terminal
Unable to handle kernel NULL pointer dereference at virtual address 00000134
c01eef9e
*pde = 00104001
Oops: 0002
CPU: 1
EIP: 0010:[<c01eef9e>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010046
eax: 00000000 ebx: f7987040 ecx: 00000000 edx: 00000000
esi: f79ba400 edi: 00000002 ebp: cc0ebf08 esp: cc0ebee4
ds: 0018 es: 0018 ss: 0018
Stack: f7987040 f79ba408 f79ba400 00000002 00000002 00000002 f79ba550 f79ba400
       00000000 cc0ebf28 c01eecca 00000013 f79ba400 cc0ebf74 cc098a40 24000001
       00000013 cc0ebf48 c0109404 00000013 f79ba400 cc0ebf74 c0307a70 c0307a60
Call Trace: [<c01eecca>] [<c0109404>] [<c0109658>] [<c0105394>] [<c0107d74>]
   [<c0105394>] [<c01053c2>] [<c0105469>] [<c0119766>]
Code: 89 82 34 01 00 00 83 c4 04 eb 14 8d b4 26 00 00 00 00 8b 4d

>>EIP; c01eef9e <isp1020_intr_handler+2ae/368> <=====

Trace; c01eecca <do_isp1020_intr_handler+4e/74>
Trace; c0109404 <handle_IRQ_event+28/50>
Trace; c0109658 <do_IRQ+c0/15c>
Trace; c0105394 <default_idle+0/38>
Trace; c0107d74 <common_interrupt+18/20>
Trace; c0105394 <default_idle+0/38>
Trace; c01053c2 <default_idle+2e/38>
Trace; c0105469 <cpu_idle+41/50>
Trace; c0119766 <release_console_sem+ee/f8>

Code; c01eef9e <isp1020_intr_handler+2ae/368>
00000000 <_EIP>:
Code; c01eef9e <isp1020_intr_handler+2ae/368> <=====
   0: 89 82 34 01 00 00 mov %eax,0x134(%edx) <=====
Code; c01eefa4 <isp1020_intr_handler+2b4/368>
   6: 83 c4 04 add $0x4,%esp
Code; c01eefa7 <isp1020_intr_handler+2b7/368>
   9: eb 14 jmp 1f <_EIP+0x1f> c01eefbd <isp1020_intr_handler+2cd/368>
Code; c01eefa9 <isp1020_intr_handler+2b9/368>
   b: 8d b4 26 00 00 00 00 lea 0x0(%esi,1),%esi
Code; c01eefb0 <isp1020_intr_handler+2c0/368>
  12: 8b 4d 00 mov 0x0(%ebp),%ecx

$ addr2line -e vmlinux-2.5.31-akpm-11 c01eef9e
/mnt/b/akpm/linux-2.5.31/drivers/scsi/qlogicisp.c:1051

(despite the -akpm name, it's still virgin 2.5.31 I'm trying to get running)

Cheers,
Bill

P.S: disassembly with source intermixed available upon request
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