From: Ingo Molnar <mingo@elte.hu>
To: Oleg Nesterov <oleg@redhat.com>, Frank Mayhar <fmayhar@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
adobriyan@gmail.com, Doug Chapman <doug.chapman@hp.com>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] for account_group_exec_runtime(), make sure ->signal can't be freed under rq->lock
Date: Tue, 11 Nov 2008 11:35:32 +0100 [thread overview]
Message-ID: <20081111103532.GA8869@elte.hu> (raw)
In-Reply-To: <20081110143930.GA28275@redhat.com>
* Oleg Nesterov <oleg@redhat.com> wrote:
> The patch is ugly, but I don't see the better fix for now. Needs the
> review from Peter/Ingo.
this is indeed too ugly, and if we do it we'll get both this ugliness
and the CPU loop upstream forever. Frank, if you dont have time to fix
this code, then i guess the best thing is to do the full revert that
Peter sent.
Regarding this teardown bug. Stupid question: why cannot the signal
structure live as long as the last user is around? It's a tiny amount
of RAM.
Ingo
next prev parent reply other threads:[~2008-11-11 10:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-10 14:39 [PATCH] for account_group_exec_runtime(), make sure ->signal can't be freed under rq->lock Oleg Nesterov
2008-11-11 10:35 ` Ingo Molnar [this message]
2008-11-11 12:58 ` Oleg Nesterov
2008-11-11 17:10 ` Frank Mayhar
2008-11-11 17:16 ` Ingo Molnar
2008-11-11 17:28 ` Frank Mayhar
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