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Date: Tue, 10 Apr 2012 09:35:29 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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To: Konstantin Khlebnikov <khlebnikov@openvz.org>
CC: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        Hugh Dickins <hughd@google.com>, linux-kernel@vger.kernel.org,
        Markus Trippelsdorf <markus@trippelsdorf.de>
Subject: Re: [PATCH] mm: sync rss-counters at the end of exit_mm()
References: <20120409200336.8368.63793.stgit@zurg>
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(2012/04/10 5:03), Konstantin Khlebnikov wrote:

> On task's exit do_exit() calls sync_mm_rss() but this is not enough,
> there can be page-faults after this point, for example exit_mm() ->
> mm_release() -> put_user() (for processing tsk->clear_child_tid).
> Thus there may be some rss-counters delta in current->rss_stat.
> 
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
> Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
> Cc: Hugh Dickins <hughd@google.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Does this fix recent issue reported ?