Re: [RFC] panic on cascade() of kernel/time/timer.c

[Thomas Gleixner]

On Wed, 30 Nov 2016, Yisheng Xie wrote:

> Hi all,
> The kernel version is 4.1.18, and we got a panic at cascade().
> from the log it seems cause by BUG_ON of kernel/time/timer.c:1120.
> Any ideas about about it?

Probably a timer which got freed while enqueued or some other wreckage in
that area. Certainly not a core code problem.

Enable CONFIG_DEBUG_OBJECTS* and try to reproduce. The debug facility will
tell you which driver/whatever causes the problem.

Thanks,

        tglx