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SubjectRe: [BUG] linux 2.6.0-test8 reaim tests (attachment URL)

My attachment was too big to send directly to lkml.
You can find it at:

http://developer.osdl.org/dmo/REAIM/typescript_stp8-002

On Fri, Oct 24, 2003 at 03:08:21PM -0700, Dave Olien wrote:
>
> I've observed in the last two days, linux 2.6.0-test8 and I think
> linux 2.6.0-test8-mm1. The reaim test workload fails to exit.
> All of the reaim tasks are blocked in sys_wait4(). But non of
> them seem to have any obvious child processes.
>
> There are also lots of sync() processes. Many of those seem to be
> blocked somewhere scheduling IO. These kernels were all with the
> as-isoched IO scheduler. I may retry with deadline scheduler, just
> to rule out IO scheduler. Is there any link between the sync()
> processes and the reaim waiting for children?
>
> Could there be a problem with IO not completing for the sync()
> tasks that causes the reaim tasks to not complete?
>
> Attached is a console output from a system hung in this state.
> Included (towards the bottom) is a sysrq t output.
>
> I'm hoping to investigate this more closely over the week end.
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