From: Oleg Nesterov <oleg@tv-sign.ru>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Andrew Morton <akpm@osdl.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@us.ibm.com>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] coredump: speedup SIGKILL sending
Date: Fri, 7 Apr 2006 03:55:19 +0400 [thread overview]
Message-ID: <20060406235519.GA331@oleg> (raw)
In-Reply-To: <1144352758.2866.105.camel@mindpipe>
On 04/06, Lee Revell wrote:
> On Fri, 2006-04-07 at 02:06 +0400, Oleg Nesterov wrote:
> > With this patch a thread group is killed atomically under ->siglock.
> > This is faster because we can use sigaddset() instead of force_sig_info()
> > and this is used in further patches.
> >
> > Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
>
> Won't this cause huge latencies when a process with lots of threads is
> killed?
Yes, irqs are disabled. But this is not worse than 'kill -9 pid', note
that __group_complete_signal() or zap_other_threads() do the same.
Oleg.
next prev parent reply other threads:[~2006-04-06 19:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-06 22:06 [PATCH 2/4] coredump: speedup SIGKILL sending Oleg Nesterov
2006-04-06 19:45 ` Lee Revell
2006-04-06 23:55 ` Oleg Nesterov [this message]
2006-04-06 20:07 ` Lee Revell
2006-04-07 23:28 ` Oleg Nesterov
2006-04-07 19:42 ` Lee Revell
2006-04-10 4:11 ` Roland McGrath
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