From: Fengguang Wu <fengguang.wu@intel.com>
To: Alex Shi <alex.shi@linaro.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [sched/balance] INFO: possible recursive locking detected
Date: Thu, 13 Mar 2014 17:06:54 +0800 [thread overview]
Message-ID: <20140313090654.GJ27627@localhost> (raw)
In-Reply-To: <5321739B.1000506@linaro.org>
On Thu, Mar 13, 2014 at 05:00:11PM +0800, Alex Shi wrote:
> On 03/13/2014 04:53 PM, Fengguang Wu wrote:
> > On Thu, Mar 13, 2014 at 03:43:11PM +0800, Alex Shi wrote:
> >> On 03/03/2014 10:25 PM, Fengguang Wu wrote:
> >>> Greetings,
> >>>
> >>> I got the below dmesg and the first bad commit is
> >>>
> >>> https://github.com/alexshi/power-scheduling.git single-balance.bak
> >>> commit 2adc591a5cb6768ad11e63be9011906aa171148d
> >>> Author: Alex Shi <alex.shi@linaro.org>
> >>> AuthorDate: Fri Feb 28 15:25:09 2014 +0800
> >>> Commit: Alex Shi <alex.shi@linaro.org>
> >>> CommitDate: Sun Mar 2 09:16:38 2014 +0800
> >>>
> >>> sched/balance: replace new_idle_balance
> >>>
> >>> Curren idle_balance will pull task on half of this group. That is
> >>> not needed in central balance.
> >>
> >>
> >> Thanks for your testing, Fengguang!
> >>
> >> I fixed this issue and updated to the git tree. Is the single-balance
> >> branch still in your performance radar? :)
> >
> > Sure, however you know it's costly to queue tests for one single tree.
> > If your trees are directly based on -rcX kernels, that would cut the
> > tests required for comparison by half.
>
> Thanks a lot! I will keep in mind for this point.
> rebased on rc6 kernel for that branch. :)
That's great!
> Thanks again for generous help!
You are welcome. I've queued alexshi/single-balance for testing.
Thanks,
Fengguang
next prev parent reply other threads:[~2014-03-13 9:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-03 14:25 [sched/balance] INFO: possible recursive locking detected Fengguang Wu
2014-03-07 1:59 ` Alex Shi
2014-03-13 7:43 ` Alex Shi
2014-03-13 8:53 ` Fengguang Wu
2014-03-13 9:00 ` Alex Shi
2014-03-13 9:06 ` Fengguang Wu [this message]
2014-03-14 6:16 ` Fengguang Wu
2014-03-14 6:20 ` [sched] 373e9ec30ad: -11.2% qperf.udp_bw.send_bw.MB_sec Fengguang Wu
2014-03-14 6:26 ` [sched/balance] INFO: possible recursive locking detected Alex Shi
2014-03-14 6:48 ` Fengguang Wu
2014-03-14 7:31 ` Alex Shi
2014-03-14 7:40 ` Fengguang Wu
2014-03-14 8:46 ` Alex Shi
2014-03-14 9:06 ` Fengguang Wu
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