Messages in this thread | | | From | Roland McGrath <> | Subject | Re: [PATCH] wait_task_zombie: don't fight with non-existing race with a dying ptracee | Date | Fri, 17 Aug 2007 13:04:15 -0700 (PDT) |
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> (textually depends on wait_task_zombie-remove-unneeded-child-signal-check.patch) > > The "p->exit_signal == -1 && p->ptrace == 0" check and the comment are bogus. > We already did exactly the same check in eligible_child(), we did not drop > tasklist_lock since then, and both variables need write_lock(tasklist) to be > changed.
I think this is correct. IIRC, when the check was added, ->ptrace could be cleared some other way.
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