--------
On Thu, 4 May 2000 16:49:50 -0700 "David Brownell" wrote:
> > At the top of the log was:
> >
> > kernel BUG at usb-ohci.c:1360!
> >
> > which is almost certainly a usb-ohci problem.
>
> Actually, I missed that (sigh) -- but it shows that the OHCI
> subsystem got bad data in its timer callback. (That's what
> the BUG in question was.)
>
> The question is where that came from. Whatever it was, it
> seems to have affected other USB stuff too.
>
>
> > I think it crashing in usbcore was a side effect of the usb-ohci bug.
>
> I'm thinking that they're both side effects of some other
> sort of problem. Two Athlons have reported it, and one
> Alpha had a similar one. Coincidence? Maybe. Maybe not.
>
> Don't they all have an "EV-6" bus in common? That's not
> gotten much Linux exposure yet?
Hello again,
I've been running without USB for a week or so and didn't see any
problems or oops messages. After loading the usb modules again the
system locked again with the oops shown below. My kernel is now
2.3.99-pre8. The eip points to usb-ohci.c again. I've only seen it
report usbcore.c once so I think that was a side-effect type of thing.
I haven't got the patch on at the moment.
I think I'll post a report over on the kernel list - I've see a few
traces that look similar (unable to handle kernel paging request,
eip pointing to timer callback etc) related to non usb subsystems.
Maybe there's a common cause - or just a comman result.
Thanks for any insights
David
ksymoops 2.3.4 on i686 2.3.99-pre8. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.3.99-pre8/ (default)
-m /src/linux/System.map (specified)
Unable to handle kernel paging request at virtual address d4d28794
CPU: 0
EIP: 0010:[<d2858c75>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00013292
eax: d4d28794 ebx: 0000000c ecx: ce4ba001 edx: 00000000
esi: 00000068 edi: c024ff1c ebp: 00000061 esp: c024fef8
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c024f000)
Stack: cf499cc0 00000000 c029f540 d2858d40 00000001 00000001 c024ff1c 000020c7
000000fc ffff0000 ffff0fff ffffffff ce4ba001 cefa4500 00000001 cf499cc0
c012012c cf499cc0 00000000 00000000 c029f540 c029f4c0 00000000 c010f174
Call Trace: [<d2858d40>] [<ffff0000>] [<ffff0fff>] [<c012012c>] [<c010f174>]
[<c011cf8b>] [<c011cec8>]
[<c011cdbf>] [<c010c31d>] [<c0108c00>] [<c0108c00>] [<c010b1fc>] [<c0108c00>]
[<c0108c00>] [<c0108c23>]
[<c0108c68>] [<c0105000>] [<c010018d>]
Code: 8b 00 a9 00 00 1f 00 74 12 b8 01 00 00 00 8b 4c 24 10 d3 e0
>>EIP; d2858c75 <[usb-ohci]rh_send_irq+c5/190> <=====
Trace; d2858d40 <[usb-ohci]rh_int_timer_do+0/60>
Trace; ffff0000 <END_OF_CODE+2d7563a1/????>
Trace; ffff0fff <END_OF_CODE+2d7573a0/????>
Trace; c012012c <timer_bh+26c/2b0>
Trace; c010f174 <timer_interrupt+84/100>
Trace; c011cf8b <bh_action+1b/70>
Trace; c011cec8 <tasklet_hi_action+38/60>
Trace; c011cdbf <do_softirq+4f/70>
Trace; c010c31d <do_IRQ+ad/c0>
Trace; c0108c00 <default_idle+0/30>
Trace; c0108c00 <default_idle+0/30>
Trace; c010b1fc <ret_from_intr+0/20>
Trace; c0108c00 <default_idle+0/30>
Trace; c0108c00 <default_idle+0/30>
Trace; c0108c23 <default_idle+23/30>
Trace; c0108c68 <cpu_idle+38/50>
Trace; c0105000 <empty_bad_page+0/1000>
Trace; c010018d <L6+0/2>
Code; d2858c75 <[usb-ohci]rh_send_irq+c5/190>
00000000 <_EIP>:
Code; d2858c75 <[usb-ohci]rh_send_irq+c5/190> <=====
0: 8b 00 mov (%eax),%eax <=====
Code; d2858c77 <[usb-ohci]rh_send_irq+c7/190>
2: a9 00 00 1f 00 test $0x1f0000,%eax
Code; d2858c7c <[usb-ohci]rh_send_irq+cc/190>
7: 74 12 je 1b <_EIP+0x1b> d2858c90
<[usb-ohci]rh_send_irq+e0/190>
Code; d2858c7e <[usb-ohci]rh_send_irq+ce/190>
9: b8 01 00 00 00 mov $0x1,%eax
Code; d2858c83 <[usb-ohci]rh_send_irq+d3/190>
e: 8b 4c 24 10 mov 0x10(%esp,1),%ecx
Code; d2858c87 <[usb-ohci]rh_send_irq+d7/190>
12: d3 e0 shl %cl,%eax
Aiee, killing interrupt handler
Kernel panic: Attempted to kill the idle task!
-------------------------------------------------
David Nash - [EMAIL PROTECTED]
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