lkml.org 
[lkml]   [2006]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: How to debug random bus errors?
Linus Torvalds wrote:
>
> On Fri, 22 Sep 2006, Orion Poplawski wrote:
>> We're seeing programs die with "bus error" (SIGBUS) randomly on a dual
>> processor Opteron machine. I've run memtest86+ and cpuburn stress tests with
>> no failure. gdb on a core file seems uninteresting. Is there some way to
>> trace the kernel to try to get more insight?
>
> Which kernel?
>

Sorry, 2.6.17-1.2142_FC4smp, so fairly recent.

> Other than that, does it tend to happen to the same particular program? It
> might just be a user space bug that needs a specific set of things to
> happen. Some of those bugs go away when you disable address space
> randomization etc, since they can depend on just pure luck (or rather,
> lack there-of).

So far just one program. Forgot about address space randomization, may
need to look into turning that off to help debugging.

Thanks!

--
Orion Poplawski
System Administrator 303-415-9701 x222
NWRA/CoRA Division FAX: 303-415-9702
3380 Mitchell Lane orion@cora.nwra.com
Boulder, CO 80301 http://www.cora.nwra.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-09-22 23:23    [W:0.028 / U:2.220 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site