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    SubjectRe: 2.6.23-mm1 thread exit_group issue
    On Fri, 12 Oct 2007 15:47:59 -0400
    Mathieu Desnoyers <> 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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