From: Anton Blanchard <anton@linuxcare.com.au>
To: "David S. Miller" <davem@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [UPDATE] Zerocopy, last one today I promise :-)
Date: Fri, 26 Jan 2001 10:19:21 +1100 [thread overview]
Message-ID: <20010126101921.A16670@linuxcare.com> (raw)
In-Reply-To: <14960.13645.936452.235135@pizda.ninka.net>
In-Reply-To: <14960.13645.936452.235135@pizda.ninka.net>; from davem@redhat.com on Thu, Jan 25, 2001 at 06:16:45AM -0800
> o If sock_writepage is called on path via device without SG support,
> the cooked up sock_sendmsg() call needs to switch to KERNEL_DS.
> Discovered and fixed by Ingo Molnar.
Good catch.
> This does show that not too many people are testing this all that
> thoroughly :-) Basically, any sys_sendfile() over TCP using a network
> card other than loopback/3c59x/sunhme/acenic would fail with -EFAULT
> or even worse a kernel crash depending upon architecture.
Hey now, I was seeing it but I hadn't got around to chasing the bug down. :)
Anton
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prev parent reply other threads:[~2001-01-25 23:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-25 14:16 [UPDATE] Zerocopy, last one today I promise :-) David S. Miller
2001-01-25 14:52 ` Tobias Ringstrom
2001-01-25 15:23 ` David S. Miller
2001-01-25 15:40 ` Tigran Aivazian
2001-01-25 15:42 ` David S. Miller
2001-01-25 16:10 ` James H. Cloos Jr.
2001-01-25 16:40 ` David S. Miller
2001-01-25 17:02 ` Andi Kleen
2001-01-25 19:40 ` kuznet
2001-01-26 9:09 ` Chris Wedgwood
2001-01-25 23:19 ` Anton Blanchard [this message]
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