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From: "Paul Menage" <menage@google.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>, Li Zefan <lizf@cn.fujitsu.com>
Subject: Re: [PATCH] mm/cgroup.c add error check
Date: Wed, 7 May 2008 00:43:45 -0700	[thread overview]
Message-ID: <6599ad830805070043y4465a32h8e26c5e8890b1100@mail.gmail.com> (raw)
In-Reply-To: <20080507164526.884208f9.kamezawa.hiroyu@jp.fujitsu.com>

On Wed, May 7, 2008 at 12:45 AM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:
>  Hmm, but It seems call_usermodehelper()'s fails in silent, no messages.
>  A notify which can be silently dropped is useless.

True, but if we're so short of memory that we can't fork, userspace
probably won't be able to do much about the notification even if it
gets it.

>  Can we add 'printk("notify_on_release: ... is failed")' or some workaround ?
>

Sounds reasonable for debugging, but don't expect any automated
middleware to notice it.

Paul

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      reply	other threads:[~2008-05-07  7:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-06 11:02 [PATCH] mm/cgroup.c add error check KOSAKI Motohiro
2008-05-06 12:43 ` Andi Kleen
2008-05-06 13:02   ` KOSAKI Motohiro
2008-05-06 18:32     ` Andi Kleen
2008-05-06 20:19       ` KOSAKI Motohiro
2008-05-07  5:08 ` Paul Menage
2008-05-07  7:45   ` KAMEZAWA Hiroyuki
2008-05-07  7:43     ` Paul Menage [this message]

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