Re: Filesystem lockup with CONFIG_PREEMPT_RT

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On Mon, 7 Jul 2014, Jan de Kruyf wrote:

> Hope I do not kick in an open door, but
> 
> Linux JanDell 3.2.0-0.bpo.3-rt-686-pae #1 SMP PREEMPT RT Thu Aug 23
> 09:55:27 UTC 2012 i686 GNU/Linux
> and
> Linux jan 3.2.0-4-rt-amd64 #1 SMP PREEMPT RT Debian 3.2.57-3+deb7u2
> x86_64 GNU/Linux
> 
> does not give the same problem that I experienced with XFS.
> So there is a hickup between version 3.2-rt and 3.10-rt I would say.

There is no hickup. Just stuff changes over time and makes certain
problems more likely/obvious.

The workqueue issue has been there since we had to deal with the
workqueue wakeup from the guts of the scheduler.

Thanks,

	tglx
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