Re: rb tree hrtimer lockup bug (found by perf_fuzzer)

[Vince Weaver]

On Tue, 25 Mar 2014, Thomas Gleixner wrote:
> debugobjects init call. Patch for that below.
> 
> What's clear from the trace is that the timer gets set up correctly,
> but when it expires the function callback is NULL. The timer is set up
> to 1sec and it's started in the context of init-1. So it's probably an
> initcall of some sort.
> 
> Do you happen to have the full bootlog up to the crash handy?

attached is the full bootlog followed by the tracedump.

> Adding "initcall_debug" to the kernel command line might give us a
> further hint what is adding the delayed_work, but I guess once we see
> the function in the trace we have a good chance to find the place
> right away. Then we have to figure out what scribbles over it .....

I haven't tried the initcall_debug yet but can if needed.

Vince

Attachment: hrtimer_boot5.log.bz2
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