On Fri, 12 Oct 2007 15:47:59 -0400
Mathieu Desnoyers <[email protected]> wrote:
> I noticed a regression between 2.6.23-rc8-mm2 and 2.6.23-mm1 (with your
> hotfixes). User space threads seems to receive a ERESTART_RESTARTBLOCK
> as soon as a thread does a pthread_join on them. The previous behavior
> was to wait for them to exit by taking a futex.
>
> I provide a toy program that shows the problem. On 2.6.23-rc8-mm2, it
> loops forever (as it should). On 2.6.23-mm1, it exits after 10 seconds.
>
> Any idea on what may cause this problem ?
>
> (I also provide complete ptrace -f of a correct and buggy run and my
> kernel config. Tests were done on i386.)
No idea. But I can reproduce it here so I'll bisect it now. Thanks
for the test case!
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