From: Willy Tarreau <willy@w.ods.org>
To: Michael Buesch <mbuesch@freenet.de>
Cc: Con Kolivas <kernel@kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Staircase scheduler v7.4
Date: Fri, 25 Jun 2004 21:05:33 +0200 [thread overview]
Message-ID: <20040625190533.GI29808@alpha.home.local> (raw)
In-Reply-To: <200406252044.25843.mbuesch@freenet.de>
Hi Michael,
On Fri, Jun 25, 2004 at 08:44:22PM +0200, Michael Buesch wrote:
> I don't know what the file wchan is good for, but here is
> it's output:
> mb@lfs:/proc/11000> cat wchan
> sys_wait4
I bet the process is waiting for a SIGCHLD from a previously forked
process. Con, would it be possible that under some circumstances,
a process does not receive a SIGCHLD anymore, eg if the child runs
shorter than a full timeslice or something like that ? In autoconf
scripts, there are lots of very short operations that might trigger
such unique cases.
Cheers,
Willy
next prev parent reply other threads:[~2004-06-25 19:16 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-25 16:40 Michael Buesch
2004-06-25 16:46 ` Con Kolivas
2004-06-25 18:44 ` Michael Buesch
2004-06-25 19:05 ` Willy Tarreau [this message]
2004-06-25 19:48 ` Michael Buesch
2004-06-26 1:11 ` kernel
2004-06-26 16:33 ` Michael Buesch
2004-06-26 17:29 ` Michael Buesch
2004-06-27 9:14 ` Con Kolivas
2004-06-27 19:17 ` Felipe Alfaro Solana
2004-06-27 19:28 ` Michael Buesch
2004-06-27 21:55 ` Felipe Alfaro Solana
2004-06-28 0:15 ` Con Kolivas
2004-06-28 8:40 ` Felipe Alfaro Solana
2004-06-28 8:49 ` Nick Piggin
2004-06-28 11:53 ` Felipe Alfaro Solana
2004-06-28 12:11 ` Con Kolivas
2004-06-28 15:03 ` Oswald Buddenhagen
2004-06-28 15:19 ` Con Kolivas
2004-06-28 15:39 ` Oswald Buddenhagen
2004-06-28 17:11 ` Felipe Alfaro Solana
2004-06-29 4:36 ` Nick Piggin
2004-06-28 23:21 ` Peter Williams
2004-06-29 4:44 ` Nick Piggin
2004-06-29 6:01 ` Ed Sweetman
2004-06-29 6:55 ` Nick Piggin
2004-06-26 2:05 ` Con Kolivas
2004-06-27 10:24 ` Con Kolivas
2004-06-27 10:27 ` Con Kolivas
2004-06-27 23:50 ` Peter Williams
2004-06-27 12:00 ` Con Kolivas
2004-06-27 12:04 ` Con Kolivas
2004-06-27 12:54 ` Michael Buesch
2004-06-27 13:15 ` Con Kolivas
2004-06-25 16:46 ` Michael Buesch
-- strict thread matches above, loose matches on Subject: below --
2004-06-25 14:38 Con Kolivas
2004-06-25 18:32 ` Matthias Urlichs
2004-06-26 1:28 ` Con Kolivas
2004-06-25 22:20 ` Willy Tarreau
2004-06-26 1:05 ` kernel
2004-06-26 20:04 ` Wes Janzen
2004-06-26 20:11 ` Michael Buesch
2004-06-26 21:14 ` Wes Janzen
2004-06-26 21:38 ` Prakash K. Cheemplavam
2004-06-27 9:16 ` Con Kolivas
2004-06-27 11:40 ` Grzegorz Kulewski
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