Andrew Morton wrote:
> I said that because the damn thing went away when I was hunting it down
> because I lost the config and was unable to remember the right combination
> of debug settings.  Fortunately it later came back so I took care to
> preserve the config.
>   

sched_clock doesn't *do* anything except flap interrupts. Oh, wait, have
you got Andi's bugfixed version of the sched_clock patch?  The first
version did a local_save_flags rather than a local_irq_save.

>> Hm, is it caused by using sched_clock() to generate the printk
>> timestamps while generating the lock test output?
>>     
>
> Conceivably.  What does that locking API test do?
>   

Didn't make a difference here.  Building your config now.

> I was using printk timestamps and netconsole at the time.
>   

Ah, great, now you're going to make me setup netconsole...

    J

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