Re: bonnie++ uninterruptible under heavy I/O load

[Baruch Even]

Fabio Coatti wrote:
> Alle 12:35, venerdì 11 marzo 2005, Denis Vlasenko ha scritto:
>
> > > Unresponsiveness is not 2.6.11 specific (we've seen the same thing on
> > > 2.6.10 and 2.6.8), not I/O scheduler specific ("as" and "deadline" behave
> > > the same) and not CPU/SMP specific (reproduced on single P4 HT and single
> > > P3), but only on these two DL585 servers we've seen bonnie++ resisting
> > > kill -9 for tens of seconds.
> > >
> > > Of course on request I can provide any other useful info.
> > > Any help is appreciated.
> >
> > I think Alt-SysRq-T will be interesting to see
>
> Unfortunately this machine is on a remote location, so we don't have access to 
> keyboard. In some days we will be able to have a report of Alt-SysRq-T, but 
> until this  of course we can provide any information that can be gathered on 
> a remote shell.

echo t > /proc/sysrq-trigger

will do the job equivalently.

Baruch

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/