* oops with 2.4.8-pre5
@ 2001-08-07 20:08 Alex Romosan
2001-08-07 20:17 ` Jens Axboe
0 siblings, 1 reply; 4+ messages in thread
From: Alex Romosan @ 2001-08-07 20:08 UTC (permalink / raw)
To: linux-kernel
i got the following oops with kernel 2.4.8-pre5. i was just logged in
remotely, reading email with gnus and maybe i had just run dselect
(debian package installer):
ksymoops 2.4.1 on i686 2.4.8-pre5. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.8-pre5/ (default)
-m /boot/System.map-2.4.8-pre5 (specified)
Aug 7 12:47:26 caliban kernel: Unable to handle kernel NULL pointer dereference at virtual address 0000001c
Aug 7 12:47:26 caliban kernel: c01311c9
Aug 7 12:47:26 caliban kernel: *pde = 00000000
Aug 7 12:47:26 caliban kernel: Oops: 0000
Aug 7 12:47:26 caliban kernel: CPU: 0
Aug 7 12:47:26 caliban kernel: EIP: 0010:[sync_old_buffers+41/76]
Aug 7 12:47:26 caliban kernel: EFLAGS: 00010286
Aug 7 12:47:26 caliban kernel: eax: 0009c42b ebx: cff20000 ecx: 00000200 edx: 00000000
Aug 7 12:47:26 caliban kernel: esi: c0259357 edi: cff2023b ebp: 0008e000 esp: cff21fe0
Aug 7 12:47:26 caliban kernel: ds: 0018 es: 0018 ss: 0018
Aug 7 12:47:26 caliban kernel: Process kupdated (pid: 7, stackpage=cff21000)
Aug 7 12:47:26 caliban kernel: Stack: c0131425 00010f00 cff39fb0 c02e34a8 c0105454 c02e34a8 00000078 c02d1fc0
Aug 7 12:47:26 caliban kernel: Call Trace: [kupdate+205/208] [kernel_thread+40/56]
Aug 7 12:47:26 caliban kernel: Code: 2b 42 1c 79 e2 89 f6 81 3d 80 4f 2c c0 80 4f 2c c0 74 0d 68
Using defaults from ksymoops -t elf32-i386 -a i386
Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: 2b 42 1c sub 0x1c(%edx),%eax
Code; 00000003 Before first symbol
3: 79 e2 jns ffffffe7 <_EIP+0xffffffe7> ffffffe7 <END_OF_CODE+2f4e6e48/????>
Code; 00000005 Before first symbol
5: 89 f6 mov %esi,%esi
Code; 00000007 Before first symbol
7: 81 3d 80 4f 2c c0 80 cmpl $0xc02c4f80,0xc02c4f80
Code; 0000000e Before first symbol
e: 4f 2c c0
Code; 00000011 Before first symbol
11: 74 0d je 20 <_EIP+0x20> 00000020 Before first symbol
Code; 00000013 Before first symbol
13: 68 00 00 00 00 push $0x0
--alex--
--
| I believe the moment is at hand when, by a paranoiac and active |
| advance of the mind, it will be possible (simultaneously with |
| automatism and other passive states) to systematize confusion |
| and thus to help to discredit completely the world of reality. |
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: oops with 2.4.8-pre5
2001-08-07 20:08 oops with 2.4.8-pre5 Alex Romosan
@ 2001-08-07 20:17 ` Jens Axboe
2001-08-07 20:29 ` Jens Axboe
0 siblings, 1 reply; 4+ messages in thread
From: Jens Axboe @ 2001-08-07 20:17 UTC (permalink / raw)
To: Alex Romosan; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 250 bytes --]
On Tue, Aug 07 2001, Alex Romosan wrote:
> i got the following oops with kernel 2.4.8-pre5. i was just logged in
> remotely, reading email with gnus and maybe i had just run dselect
> (debian package installer):
This should fix it.
--
Jens Axboe
[-- Attachment #2: sync_old_buffers-1 --]
[-- Type: text/plain, Size: 439 bytes --]
--- /opt/kernel/linux-2.4.8-pre5/fs/buffer.c Tue Aug 7 10:28:50 2001
+++ fs/buffer.c Tue Aug 7 22:17:51 2001
@@ -2581,13 +2472,17 @@
spin_lock(&lru_list_lock);
bh = lru_list[BUF_DIRTY];
+ if (!bh)
+ break;
if (!time_before(jiffies, bh->b_flushtime))
continue;
spin_unlock(&lru_list_lock);
}
run_task_queue(&tq_disk);
- return 0;
+ break;
}
+
+ return 0;
}
int block_sync_page(struct page *page)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: oops with 2.4.8-pre5
2001-08-07 20:17 ` Jens Axboe
@ 2001-08-07 20:29 ` Jens Axboe
2001-08-07 20:31 ` Jens Axboe
0 siblings, 1 reply; 4+ messages in thread
From: Jens Axboe @ 2001-08-07 20:29 UTC (permalink / raw)
To: Alex Romosan; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 348 bytes --]
On Tue, Aug 07 2001, Jens Axboe wrote:
> On Tue, Aug 07 2001, Alex Romosan wrote:
> > i got the following oops with kernel 2.4.8-pre5. i was just logged in
> > remotely, reading email with gnus and maybe i had just run dselect
> > (debian package installer):
>
> This should fix it.
Eh scratch that braino, here's a right one...
--
Jens Axboe
[-- Attachment #2: sync_old_buffers-2 --]
[-- Type: text/plain, Size: 381 bytes --]
--- /opt/kernel/linux-2.4.8-pre5/fs/buffer.c Tue Aug 7 10:28:50 2001
+++ fs/buffer.c Tue Aug 7 22:30:53 2001
@@ -2581,10 +2472,13 @@
spin_lock(&lru_list_lock);
bh = lru_list[BUF_DIRTY];
+ if (!bh)
+ goto quit;
if (!time_before(jiffies, bh->b_flushtime))
continue;
spin_unlock(&lru_list_lock);
}
+quit:
run_task_queue(&tq_disk);
return 0;
}
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: oops with 2.4.8-pre5
2001-08-07 20:29 ` Jens Axboe
@ 2001-08-07 20:31 ` Jens Axboe
0 siblings, 0 replies; 4+ messages in thread
From: Jens Axboe @ 2001-08-07 20:31 UTC (permalink / raw)
To: Alex Romosan; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 462 bytes --]
On Tue, Aug 07 2001, Jens Axboe wrote:
> On Tue, Aug 07 2001, Jens Axboe wrote:
> > On Tue, Aug 07 2001, Alex Romosan wrote:
> > > i got the following oops with kernel 2.4.8-pre5. i was just logged in
> > > remotely, reading email with gnus and maybe i had just run dselect
> > > (debian package installer):
> >
> > This should fix it.
>
> Eh scratch that braino, here's a right one...
Too tired, or something... I think I'll stop for today.
--
Jens Axboe
[-- Attachment #2: sync_old_buffers-3 --]
[-- Type: text/plain, Size: 423 bytes --]
--- /opt/kernel/linux-2.4.8-pre5/fs/buffer.c Tue Aug 7 10:28:50 2001
+++ fs/buffer.c Tue Aug 7 22:32:36 2001
@@ -2581,10 +2472,15 @@
spin_lock(&lru_list_lock);
bh = lru_list[BUF_DIRTY];
+ if (!bh) {
+ spin_unlock(&lru_list_lock);
+ goto quit;
+ }
if (!time_before(jiffies, bh->b_flushtime))
continue;
spin_unlock(&lru_list_lock);
}
+quit:
run_task_queue(&tq_disk);
return 0;
}
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2001-08-07 20:32 UTC | newest]
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2001-08-07 20:08 oops with 2.4.8-pre5 Alex Romosan
2001-08-07 20:17 ` Jens Axboe
2001-08-07 20:29 ` Jens Axboe
2001-08-07 20:31 ` Jens Axboe
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