Re: [PATCH v3] perf: fix RCU issues with cgroup monitoring mode

2015-11-04 Thread Peter Zijlstra
On Wed, Nov 04, 2015 at 05:12:19AM +0100, Stephane Eranian wrote: > > This patch eliminates RCU violations detected by the RCU > checker (PROVE_RCU). The impact code paths were all related > to cgroup mode monitoring and involved access a task's cgrp. > > V2 is updated to include comments from Pe

Re: [PATCH v3] perf: fix RCU issues with cgroup monitoring mode

2015-11-03 Thread kbuild test robot
Hi Stephane, [auto build test WARNING on: tip/perf/core] [also build test WARNING on: v4.3 next-20151103] url: https://github.com/0day-ci/linux/commits/Stephane-Eranian/perf-fix-RCU-issues-with-cgroup-monitoring-mode/20151104-121512 config: i386-randconfig-i0-201544 (attached as .config) repr

Re: [PATCH v3] perf: fix RCU issues with cgroup monitoring mode

2015-11-03 Thread kbuild test robot
Hi Stephane, [auto build test ERROR on: tip/perf/core] [also build test ERROR on: v4.3 next-20151103] url: https://github.com/0day-ci/linux/commits/Stephane-Eranian/perf-fix-RCU-issues-with-cgroup-monitoring-mode/20151104-121512 config: parisc-allyesconfig (attached as .config) reproduce:

[PATCH v3] perf: fix RCU issues with cgroup monitoring mode

2015-11-03 Thread Stephane Eranian
This patch eliminates RCU violations detected by the RCU checker (PROVE_RCU). The impact code paths were all related to cgroup mode monitoring and involved access a task's cgrp. V2 is updated to include comments from PeterZ to eliminate some of the warnings without grabbing the rcu_read lock beca