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SubjectRe: [BUG] soft lockup detected with ipcs
On Fri, 29 Feb 2008 12:01:27 +0100 Jiri Olsa <olsajiri@gmail.com> wrote:

> Andrew Morton wrote:
> > On Fri, 29 Feb 2008 11:46:24 +0100 Jiri Olsa <olsajiri@gmail.com> wrote:
> >
> >> when I run 'ipcs' my system freeze up immediatelly.
> >> I was able to get kernel BUG message once, I think it is not
> >> printed out all the time it freeze.
> >>
> >> I tried on 2.6.24, 2.6.20 and 2.6.18.
> >> I attached screenshot from 2.6.18 freeze and config.
> >
> > how weird. Lots of people are surely running ipcs and not seeing this.
> >
> > Can you suggest what's different about your setup?
>
> no idea :) I noticed like 2 weeks ago... I probably changed some config,
> but I dont remember what it was, I'll try to figure out.
>
> Anyway I can reproduce this immediatelly, so I can run any diag you'd need to see.
>

(reversed top-posting - please don't do that ;))

Strange. I guess as a first step it would be good if you can get a full
backtrace - can you set up netconsole
(Documentation/networking/netconsole.txt) and grab that?

We have your config. Can you tell us how you're triggering it? Does a
particular workload have to be run, or is it triggerable straight after
bootup?

Thanks.


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