Messages in this thread | | | From | Dmitry Vyukov <> | Date | Thu, 4 Feb 2016 19:48:13 +0100 | Subject | Re: tty: deadlock between n_tracerouter_receivebuf and flush_to_ldisc |
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On Thu, Feb 4, 2016 at 7:46 PM, Peter Hurley <peter@hurleysoftware.com> wrote: > On 02/04/2016 05:17 AM, Dmitry Vyukov wrote: >> On Thu, Feb 4, 2016 at 1:39 PM, Dmitry Vyukov <dvyukov@google.com> wrote: >>> On Wed, Feb 3, 2016 at 8:09 PM, Peter Hurley <peter@hurleysoftware.com> wrote: > >>>> Hopefully, once the problem with the bad stacktraces are fixed, the >>>> actual circular lock dependencies will be clear. > >> Found a bug in lockdep. Yes, the first stack is correct, and the saved >> stack is just a random, unrelated stack. Will mail a fix. > > Ok, so with the lockdep bug fixed, those reports should now have the > correct stack traces. > > I'd appreciate if you could re-generate the original report, so I can examine > if my speculative fix was appropriate. > > And then if you would re-generate the more recent report, I'll relook at > that.
Working hard on it now.
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