Re: deadlock in scheduler enabling HRTICK feature

From: Peter Zijlstra
Date: Tue Jun 25 2013 - 17:17:21 EST


On Tue, Jun 25, 2013 at 03:05:38PM -0600, David Ahern wrote:
> Peter/Ingo:
>
> I can reliably cause a deadlock in the scheduler by enabling the HRTICK
> feature. I first hit the problem with 2.6.27 but have been able to reproduce
> it with newer kernels. I have not tried top of Linus' tree, so perhaps this
> has been fixed in 3.10.

Yeah, I know.. its been on the todo list forever but its never been
important. Its disabled by default and all sched debug features are for
those brave enough to keep the pieces ;-)
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