Re: workqueue: WARN at at kernel/workqueue.c:2176

[Jason J. Herne]

On 05/16/2014 12:29 PM, Peter Zijlstra wrote:
> On Sat, May 17, 2014 at 12:18:06AM +0800, Lai Jiangshan wrote:
> > so the scheduler/set_cpus_allowed_ptr()/cpu_active_mask should be the first
> > place to fix.
>
> I'm not arguing about that, not to mention that this is userspace
> exposed and nobody protects that.
>
> But I was expecting kernel stuff that calls it on hotplug to be
> serialized thusly, but apparently not so.

Was a final patch posted for this issue? The discussion made it sound 
like there were still a few things to figure out before we could resolve 
this bug. I can recreate this as needed and I'm happy to test any patches.

--
-- Jason J. Herne (jjherne@xxxxxxxxxxxxxxxxxx)

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