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Message-ID: <20140228113209.GK27965@twins.programming.kicks-ass.net>
Date: Fri, 28 Feb 2014 12:32:09 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Mike Galbraith <bitbucket@...ine.de>
Cc: Mel Gorman <mgorman@...e.com>, LKML <linux-kernel@...r.kernel.org>,
RT <linux-rt-users@...r.kernel.org>
Subject: Re: [patch] rt,sched,numa: Move task_numa_free() to
__put_task_struct(), which -rt offloads
On Fri, Feb 28, 2014 at 07:23:11AM +0100, Mike Galbraith wrote:
>
> Bad idea:
> [ 908.026136] [<ffffffff8150ad6a>] rt_spin_lock_slowlock+0xaa/0x2c0
> [ 908.026145] [<ffffffff8108f701>] task_numa_free+0x31/0x130
> [ 908.026151] [<ffffffff8108121e>] finish_task_switch+0xce/0x100
> [ 908.026156] [<ffffffff81509c0a>] thread_return+0x48/0x4ae
> [ 908.026160] [<ffffffff8150a095>] schedule+0x25/0xa0
> [ 908.026163] [<ffffffff8150ad95>] rt_spin_lock_slowlock+0xd5/0x2c0
> [ 908.026170] [<ffffffff810658cf>] get_signal_to_deliver+0xaf/0x680
> [ 908.026175] [<ffffffff8100242d>] do_signal+0x3d/0x5b0
> [ 908.026179] [<ffffffff81002a30>] do_notify_resume+0x90/0xe0
> [ 908.026186] [<ffffffff81513176>] int_signal+0x12/0x17
> [ 908.026193] [<00007ff2a388b1d0>] 0x7ff2a388b1cf
>
> Signed-off-by: Mike Galbraith <bitbucket@...ine.de>
Fair enough; thanks!
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