Date: Thu, 13 Aug 2009 12:27:05 -0400 From: Damian Gerow <dgerow@afflictions.org> To: Attilio Rao <attilio@freebsd.org> Cc: freebsd-current@freebsd.org, Robert Noland <rnoland@freebsd.org> Subject: Re: No display after resume in r196086 Message-ID: <20090813162705.GA1468@plebeian.afflictions.org> In-Reply-To: <3bbf2fe10908130652t77767929q44ba12f39cb3f997@mail.gmail.com> References: <20090813002104.GA1481@plebeian.afflictions.org> <1250161757.1823.18.camel@balrog.2hip.net> <3bbf2fe10908130652t77767929q44ba12f39cb3f997@mail.gmail.com>
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Attilio Rao wrote: : why don't you directly try the revision immediately before newbus : locking (so immediately prior to r196037) and try to verify it still : works. Culprit confirmed: I can resume with r196036, but not r196037. : I'm aware of at least one possible deadlock source but it should not : happen while suspend/resume. However, I'm preparing an errata patch : for newbus locking. : If you verify newbus locking is the real culprit and that my further : patch doesn't fix your problem we can try to hammer it down further. Let me know what else you might need.
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