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Date: Fri, 13 Feb 2009 09:28:20 +0100 From: Ingo Molnar <mingo@...e.hu> To: David Howells <dhowells@...hat.com> Cc: "Serge E. Hallyn" <serue@...ibm.com>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, LKML <linux-kernel@...r.kernel.org>, Lee Schermerhorn <Lee.Schermerhorn@...com> Subject: Re: [CRED bug?] 2.6.29-rc3 don't survive on stress workload * David Howells <dhowells@...hat.com> wrote: > Serge E. Hallyn <serue@...ibm.com> wrote: > > > 1. put_user_ns() was being called before the uid (which > > was in the init_user_ns) was unhashed > > Ah yes... but only if CONFIG_USER_NS=y. Otherwise the unhash was being done > before the release anyway. With this option set, the unhash was being deferred > to a workqueue thread. > > Okay, that seems reasonable. Note Serge's fix also fixed a mystery hang/crash on a -tip testbox that has been broken since the merge window. Last night it produced a straight series of 550 bootups - previously it would crash/hang after 20-30 iterations. (i did not report it in this thread before because it's a new testbox with just a few weeks of track record and thus i could not exclude potential hardware trouble) So the bug is very much fixed. Tested-by: Ingo Molnar <mingo@...e.hu> Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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