From: Oleg Nesterov <oleg@tv-sign.ru>
To: Ingo Molnar <mingo@elte.hu>
Cc: Frank Mayhar <fmayhar@google.com>,
linux-kernel@vger.kernel.org, Roland McGrath <roland@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Alexey Dobriyan <adobriyan@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 2.6.27-rc5] Fix itimer/many thread hang.
Date: Tue, 9 Sep 2008 20:13:45 +0400 [thread overview]
Message-ID: <20080909161345.GA742@tv-sign.ru> (raw)
In-Reply-To: <20080909160152.GA714@tv-sign.ru>
On 09/09, Oleg Nesterov wrote:
>
> So, the first CLONE_THREAD creates ->cputime.totals. After that
> thread_group_cputime_account_xxx() start to use it even if the task
> doesn't have the attached cpu timers.
>
> Stupid question: can't we allocate .totals in posix_cpu_timer_create() /
> set_process_cpu_timer() ?
Just to clarify: yes I see, .totals is also used by do_task_stat()/etc,
but they can iterate over sub-threads as before.
And my apologies if this was already discussed ;)
Oleg.
next prev parent reply other threads:[~2008-09-09 16:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-08 20:44 Frank Mayhar
2008-09-09 7:03 ` Ingo Molnar
2008-09-09 16:01 ` Oleg Nesterov
2008-09-09 16:13 ` Oleg Nesterov [this message]
2008-09-09 20:29 ` Frank Mayhar
2008-09-10 12:12 ` Oleg Nesterov
2008-09-10 17:50 ` Frank Mayhar
2008-09-10 16:32 ` Oleg Nesterov
2008-09-10 4:04 ` Roland McGrath
2008-09-10 11:44 ` Oleg Nesterov
2008-09-10 3:59 ` Roland McGrath
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