Subject: kmem_alloc: Bad poison (name=size-256)
From: Christoph Dworzak (axp@amazing.ch )
Date: Fri Aug 13 1999 - 07:31:00 PDT
Hi
I compiled linux-2.2.1-ac3. While running a
program of mine (which uses lots of cpu-time
and also high nfs-usage) I got the following
message once:
> kmem_alloc: Bad poison (name=size-256)
while i was greping trough the kernel-sources
(and found the msg in mm/slab.c) the computer
just froze. Only reset could start it again.
I had troubles with this computer since right
from the beginning. Sometimes I get segfaults,
sometimes kernel-opps, sometimes it just reboots
and now it hangs...
I don't know, do i maybe have a hw-problem?
I tried many different kernels 2.2.6-2.3.10
with many different patches (ac, rth, and
some clues from the this mailing-list) but
it never worked stable.
I have two identical machines and the other
one is running fine (uptime >30 days) with
kernel 2.2.7-ac1. But there might be some
differences in the kernelconfig and in the
installed rpms.
do you have some helpfull tips for me?
bye
dworz
config of the troublemaker:
-SX164
-Mem: 128MB
-Ide: IBM-DTTA-351010
-Gfx: S3 Trio64,
-Nic: Lantronix LF-PTA (Tulip 21140)
-OS: RH5.2 with all updates ~1 Month ago
-Kernel: 2.2.11-ac3
update:
i just tried it again after reboot (and fsck...)
and that's what i got when running my program:
> PYXIS machine check: vector=0x670 pc=0x206739 code=0x8e
> machine check type: unknown
> Unable to handle kernel paging request at virtual address 0000000000206738
> muha(483): Oops -1
> pc = [<0000000000206738>] ra = [<0000000120000e38>] ps = 0000
> r0 = 0000000000000001 r1 = ffffffff801fffff r2 = 0000000120008770
> r3 = 000000007fe00000 r4 = 000000003fe68000 r5 = 000000003fe00000
> r6 = 4000000000000000 r7 = 0000000000000000 r8 = 00000000000007ff
> r9 = 000000012010aff0 r10= 00000000000000a8 r11= 0000000000000007
> r12= 000000011ffff778 r13= 00000000000001e8 r14= 0000000000000006
> r15= 000000012010a510
> r16= 4062063b88628cd6 r17= 0000000000000000 r18= 7c0fdebe70cf671a
> r19= 000000000000040a r20= 0000000000000000 r21= 0000000000000010
> r22= 000000011fffd814 r23= 000000011fffd814 r24= 000000012010a500
> r25= 000000012010a4d0 r27= 0000000120003370 r28= 0000000120008758
> gp = fffffc000044f718 sp = fffffc00077c3fd0
> Code:muha: Exception at [<fffffc0000311118>] (fffffc000031111c)
>
> Trace:
thought the computer didn't lock up or anything...
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This archive was generated by hypermail 2a22 : Tue Sep 07 1999 - 16:14:59 PDT