Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

[Mike Galbraith]

On Tue, 2008-01-22 at 11:05 +1100, Nick Piggin wrote:
> On Tuesday 22 January 2008 07:58, Frederik Himpe wrote:
> > With Linux 2.6.24-rc8 I often have the problem that the pan usenet
> > reader starts using 100% of CPU time after some time. When this happens,
> > kill -9 does not work, and strace just hangs when trying to attach to
> > the process. The same with gdb. ïps shows the process as being in the R
> > state.
> >
> > I pressed Ctrl-Alt-SysRq-T, and this was shown for pan:
> > Jan 21 21:45:01 Anastacia kernel: pan           R  running task        0 
> 
> Well I've twice tried to submit a patch to print stacks for running
> tasks as well, but nobody seems interested. It would at least give a
> chance to see something.

I've hit same twice recently (not pan, and not repeatable).

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