From: kuznet@ms2.inr.ac.ru
To: chris@scary.beasts.org (Chris Evans)
Cc: linux-kernel@vger.kernel.org, davem@redhat.com
Subject: Re: SO_SNDTIMEO: 2.4 kernel bugs
Date: Sun, 18 Feb 2001 22:48:00 +0300 (MSK) [thread overview]
Message-ID: <200102181948.WAA27407@ms2.inr.ac.ru> (raw)
In-Reply-To: <Pine.LNX.4.30.0102181935130.31140-100000@ferret.lmh.ox.ac.uk> from "Chris Evans" at Feb 18, 1 07:37:33 pm
Hello!
> .. unless that page was partially written, in which case a short write
> count is returned (rather than a timeout error), and the loop goes around
> again.
sendfile() does not return on partial write and tries to push more
until error. On fast link it most likely succeeds, so that it is unkillable
even with SIGKILL.
> Which is good, because SO_SNDTIMEO is an inactivity monitor.
Then why did you blame? 8)8)
I do not think so. It is rather scheduling breaker. If connection
is idle 99% of time, but wakes each sndtimeo-1usec, it must yuild,
otherwise thread is lost for production.
Alexey
next prev parent reply other threads:[~2001-02-18 19:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-17 1:35 Chris Evans
2001-02-17 20:29 ` kuznet
2001-02-17 21:56 ` Chris Evans
2001-02-17 22:46 ` Chris Evans
2001-02-18 17:24 ` kuznet
2001-02-18 19:25 ` Chris Evans
2001-02-18 19:33 ` kuznet
2001-02-18 19:37 ` Chris Evans
2001-02-18 19:48 ` kuznet [this message]
2001-02-19 1:04 ` Chris Evans
2001-02-19 1:43 ` sendfile() breakage was " Chris Evans
2001-02-19 18:03 ` kuznet
2001-02-19 21:56 ` Chris Evans
2001-02-20 15:09 ` David Woodhouse
2001-02-18 1:50 ` Chris Evans
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