Re: [Linux v4.2] workqueue: llvmlinux: acpid: BUG: sleeping function called from invalid context at kernel/workqueue.c:2680

From: Sedat Dilek
Date: Fri Sep 25 2015 - 09:18:51 EST

On Fri, Sep 25, 2015 at 3:13 PM, Jiri Kosina <jikos@xxxxxxxxxx> wrote:
> On Fri, 25 Sep 2015, Sedat Dilek wrote:
>> > The sequence looks correct. So I don't really see what call sequence could
>> > lead to calling flush_work() from __cancel_work_timer() with IRQs
>> > disabled (which is what your stacktrace is suggesting).
>> >
>> > The fact that this doesn't happen with GCC-compiled kernels is really
>> > suspicious.
>> >
>> Hm, and now?
> I guess one of the things to try is to generate ftrace graph trace to see
> what exact function sequence leads to this warning.

Can I do this via kernel-boot-parameter?
No experiences with ftrace here.

- Sedat -
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