Re: [Openipmi-developer] BUG: soft lockup detected on CPU#1, ipmi_si

[Corey Minyard]

Matt Domsch wrote:
> On Thu, Jun 22, 2006 at 09:03:12AM -0500, Corey Minyard wrote:
>   
>> Peter, can you make a code change for me and try something out?
>>
>> If possible, could you change the call to udelay(1) in the function
>> ipmi_thread() in drivers/char/ipmi_si_intf.c to be a call to schedule()
>> instead?  I'm guessing that will fix this problem.
>>     
>
> won't that cause the thread to be scheduled out for at least one timer
> tick (1-10ms depending on HZ), especially as it's at nice 19?  This
> will cause the commands to be quite slow, which was the primary reason
> for the kthread here in the first place.
>   
I think that will only happen if there are other things to run that are
higher priority, and you want those to run, anyway.  This doesn't affect
the processes priority like yield() would.

-Corey
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