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Message-ID: <CALAqxLU+TyaM=Qhtgo4rvNx1HfbR_rTZ4sZZ5DmQnjoykyMB4g@mail.gmail.com> Date: Tue, 19 Sep 2017 20:36:21 -0700 From: John Stultz <john.stultz@...aro.org> To: Shuah Khan <shuah@...nel.org> Cc: lkml <linux-kernel@...r.kernel.org>, Richard Cochran <richardcochran@...il.com>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>, Prarit Bhargava <prarit@...hat.com>, Stephen Boyd <stephen.boyd@...aro.org>, Greg Hackmann <ghackmann@...gle.com>, Miroslav Lichvar <mlichvar@...hat.com>, linux-tip-commits@...r.kernel.org, Shuah Khan <shuahkh@....samsung.com> Subject: Re: [tip:timers/core] kselftests: timers: set-timer-lat: Tweak reporting when timer fires early On Tue, Sep 19, 2017 at 6:02 PM, Shuah Khan <shuah@...nel.org> wrote: > Hi Greg, > > On 08/20/2017 03:56 AM, tip-bot for Greg Hackmann wrote: >> Commit-ID: a524b1184b8e86141d689fa78ad150fbf2db9b4c >> Gitweb: http://git.kernel.org/tip/a524b1184b8e86141d689fa78ad150fbf2db9b4c >> Author: Greg Hackmann <ghackmann@...gle.com> >> AuthorDate: Tue, 25 Jul 2017 14:36:25 -0700 >> Committer: John Stultz <john.stultz@...aro.org> >> CommitDate: Thu, 17 Aug 2017 12:14:54 -0700 >> >> kselftests: timers: set-timer-lat: Tweak reporting when timer fires early >> >> Rather than printing an error inside the alarm signal handler, set a >> flag that we check later. This keeps the test from spamming the console >> every time the alarm fires early. It also fixes the test exiting with >> error code 0 if this was the only test failure. >> >> Cc: Thomas Gleixner <tglx@...utronix.de> >> Cc: Ingo Molnar <mingo@...nel.org> >> Cc: Miroslav Lichvar <mlichvar@...hat.com> >> Cc: Richard Cochran <richardcochran@...il.com> >> Cc: Prarit Bhargava <prarit@...hat.com> >> Cc: Stephen Boyd <stephen.boyd@...aro.org> >> Cc: Shuah Khan <shuah@...nel.org> >> Cc: linux-kselftest@...r.kernel.org >> Signed-off-by: Greg Hackmann <ghackmann@...gle.com> >> Signed-off-by: John Stultz <john.stultz@...aro.org> > > This commit is making the set-timer-lat hang. I reverted this commit > and there is no hang. Could you please take a look and see if this > commit should be reverted. > > make kselftest as well as make -C tools/testing/selftests/timers run_tests > hang. Do you have any specific details as to how the test hangs? (ie: Log data, as in where it might be when it hangs? Any details about the machine?) I'm not seeing it so far in my testing. thanks -john
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