Re: Memory management issues with 2.4.4

From: Jorge Nerín (jnerin@juridicas.com)
Date: Fri May 04 2001 - 01:31:02 EST


Marcelo Tosatti wrote:

>
> On Wed, 2 May 2001, Jorge Nerin wrote:
>
>> Short version:
>> Under very heavy thrashing (about four hours) the system either lockups
>> or OOM handler kills a task even when there is swap space left.
>
>
> First of all, please try to reproduce the problem with 2.4.5-pre1.
>
> If it still happens with pre1, please show us the output of "cat
> /proc/slabinfo" when the kernel is about to trigger the OOM killer.
>
> Thanks.
>
Well, I have tried with 2.4.5-pre1 compiled form SMP, and the result has been that this morning when I wake up the system has the console black (is there any way to prevent cons.saver from blanking the screen) and the disks where quiet, so I SysRQ-Sync, Umount, powerOff and then, at the last command the console wake up and I have been saluted with:

Kernel BUG in sched.c:709!
Invalid operand: 0000
Dump copied by hand, but not yet filtered by ksymoops (I'm at work now).
kernel panic Aiee, killing interrupt handler!
In interrupt not syncing.

This afternoon when I return home I will feed the stack dump to ksymoops and post the results, I mail this now just to see if someone sees the ligth.

-- 
Jorge Nerin
<comandante@zaralinux.com>

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