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Groups > linux.kernel > #1327423
| From | Viresh Kumar <viresh.kumar@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups |
| Date | 2016-02-05 03:50 +0100 |
| Message-ID | <qYED8-2lp-23@gated-at.bofh.it> (permalink) |
| References | (1 earlier) <qY80y-3RT-9@gated-at.bofh.it> <qY8jU-4ft-13@gated-at.bofh.it> <qYlAt-4SU-3@gated-at.bofh.it> <qYr3d-8vU-25@gated-at.bofh.it> <qYzap-74b-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 05-02-16, 02:20, Shilpasri G Bhat wrote: > I could see the previous lockdep warnings on pm/next and on top of patch[4]. > On Patch[5-7] I see the below lockdep trace on running './runme' on a Power8 box. > [ 710.336130] Chain exists of: > s_active#91 --> &dbs_data->mutex --> od_dbs_cdata.mutex > > [ 710.336376] Possible unsafe locking scenario: > > [ 710.336488] CPU0 CPU1 > [ 710.336577] ---- ---- > [ 710.336666] lock(od_dbs_cdata.mutex); > [ 710.336778] lock(&dbs_data->mutex); > [ 710.336911] lock(od_dbs_cdata.mutex); > [ 710.337064] lock(s_active#91); > [ 710.337176] This is the same lockdep, just that we have added another mutex (dbs_data->mutex) to it. Have you tried if all the lockdeps go away with the 8th patch that I provided yesterday ? -- viresh
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[PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-03 15:10 +0100
[PATCH V2 4/7] Revert "cpufreq: Drop rwsem lock around CPUFREQ_GOV_POLICY_EXIT" Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-03 15:10 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Juri Lelli <juri.lelli@arm.com> - 2016-02-03 17:00 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-03 17:20 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Juri Lelli <juri.lelli@arm.com> - 2016-02-03 18:20 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rafael@kernel.org> - 2016-02-03 18:30 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Shilpa Bhat <shilpabhatppc@gmail.com> - 2016-02-04 00:40 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rafael@kernel.org> - 2016-02-04 01:00 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-04 07:00 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-04 12:10 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Saravana Kannan <skannan@codeaurora.org> - 2016-02-04 18:50 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Saravana Kannan <skannan@codeaurora.org> - 2016-02-04 18:50 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rafael@kernel.org> - 2016-02-04 19:20 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-05 03:50 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-05 05:00 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-05 10:50 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-08 03:20 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Saravana Kannan <skannan@codeaurora.org> - 2016-02-06 03:30 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-08 03:30 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-04 07:30 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-04 13:20 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-02-04 22:00 +0100
Re: [PATCH V2 0/7] cpufreq: governors: Fix ABBA lockups Viresh Kumar <viresh.kumar@linaro.org> - 2016-02-05 03:50 +0100
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