On 14/12/2007, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> Here is much easier test.
> (I'm sorry I'll be absent tomorrow.)
>
> the number of cpus is 8. ia64/NUMA.
>
> The hang occurs when the number of tasks is not smaller than available cpus.
> Can be a hint ?
>
> [ ... ]
>
> [root@rhel51GA testpro]#./batech-test.sh
> no hang.
>
> [root@rhel51GA testpro]#taskset 0f ./batech-test.sh
> no hang
>
> [root@rhel51GA testpro]#taskset 03 ./batech-test.sh
> hang.

have you tried :

[root@rhel51GA testpro]#taskset 01 ./batech-test.sh

hang?

just to be sure SMP does matter here (most likely yes, I guess).

TIA,

>
> Thanks,
> -Kame
>

-- 
Best regards,
Dmitry Adamushko
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