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SubjectRe: [RFC] RT-patch update to remove the global pi_lock
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On Wed, 2005-08-24 at 21:13 -0400, Steven Rostedt wrote:
> Well, after turning off hrtimers, I keep getting one bug. A possible
> soft lockup with the ext3 code. But this didn't seem to be caused by the
> changes I made. So just to be sure, I ran my test on the vanilla
> 2.6.13-rc6-rt11 and it gave the same bug too. So, it looks like my
> changes are now at par with what is out there with the rt11 release.
> They both give the same bug! ;-)
>
> Attached is the test I ran. I did a
>
> while : ; do ./test3a_rt ; done
>
> Where test3a_rt is a C program that does adding, deleting and reading of
> files, by different tasks that are each at a different priority. Here's
> the soft lockup I'm getting:

I got a report of a possible softlockup with setiathome, the trace
wasn't a little garbled though . I'm not sure the checking is working
correctly . But if it is maybe these spot need some performance
analysis . Didn't you changes catch anything that stays in the kernel
for 10 seconds or more ?

Daniel

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