Re: 2.6.22-rc6 spurious hangs

From: Ingo Molnar
Date: Thu Jun 28 2007 - 11:01:00 EST



* Thomas Sattler <tsattler@xxxxxx> wrote:

> >> As Ingo told me I run 'echo t > /proc/sysrq-trigger' this time. The
> >> corresponding part of my syslogs is attached, as well as my kernel config.
> >
> > Could you try the patch below? It dumps some info when flush_workqueue()
> > hangs.
>
> I'm compiling a patched kernel right now. As I wrote in my former mail
> the whole thing not easy to trigger. So it can take some time to get
> the info.

i'd suggest to increase CONFIG_LOG_BUF_SHIFT=17 to =20 in your .config -
to make sure the full SysRq-t dump is captured when you do it.

Ingo
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