From: Andi Kleen <ak@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: george@mvista.com, niv@us.ibm.com, kuznet@ms2.inr.ac.ru,
ak@suse.de, netdev@oss.sgi.com, linux-net@vger.kernel.org,
ak@muc.de, pekkas@netcore.fi
Subject: Re: System crash in tcp_fragment()
Date: Tue, 21 May 2002 11:49:22 +0200 [thread overview]
Message-ID: <20020521114922.B6519@wotan.suse.de> (raw)
In-Reply-To: <20020520.230021.29510217.davem@redhat.com>
> That's not the problem. We use per-cpu values for each counter (and
> when the user asks for the value, we add together the values from
> each processor).
At least on x86 gcc usually seems to just generate an incl, which should
be ok because it is atomic enough (even when a reschedule happens it will
act as a full memory barrier)
So it'll likely just be a problem for load-store architectures.
-Andi
next prev parent reply other threads:[~2002-05-21 9:49 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.33.0205201836160.9301-100000@w-nivedita2.des.beaverton.ibm.com>
[not found] ` <3CE9E466.AC2358EE@mvista.com>
2002-05-21 6:00 ` System crash in tcp_fragment() David S. Miller
[not found] ` <20020520.230021.29510217.davem@redhat.com>
[not found] ` <3CE9F679.90ACF597@mvista.com>
2002-05-21 7:22 ` David S. Miller
2002-05-21 12:47 ` kuznet
2002-05-21 15:42 ` george anzinger
2002-05-21 12:54 ` Andi Kleen
2002-05-21 7:25 ` george anzinger
2002-05-21 9:49 ` Andi Kleen [this message]
2002-05-21 6:08 ` george anzinger
[not found] <20020520.173416.105610032.davem@redhat.com>
2002-05-21 1:00 ` kuznet
2002-05-21 1:49 ` Nivedita Singhvi
[not found] <3CE9960D.15D41380@mvista.com>
[not found] ` <200205210041.EAA04407@sex.inr.ac.ru>
2002-05-21 0:34 ` David S. Miller
2002-05-21 0:41 ` kuznet
[not found] <20020521015407.A1296@wotan.suse.de>
2002-05-21 0:11 ` kuznet
2002-05-21 0:20 ` Andi Kleen
2002-05-21 0:26 ` george anzinger
[not found] ` <20020521022007.A6248@wotan.suse.de>
2002-05-21 0:34 ` george anzinger
[not found] ` <3CE99434.20E7479C@mvista.com>
2002-05-21 0:18 ` David S. Miller
2002-05-21 0:39 ` Andi Kleen
[not found] <3CE95190.75C52E2D@mvista.com>
2002-05-20 20:29 ` Andi Kleen
[not found] ` <20020520222937.A1467@averell>
2002-05-20 21:18 ` george anzinger
2002-05-20 21:25 ` kuznet
2002-05-20 22:08 ` David S. Miller
[not found] ` <200205202125.BAA03545@sex.inr.ac.ru>
2002-05-20 23:01 ` george anzinger
2002-05-20 23:54 ` Andi Kleen
2002-05-20 19:42 george anzinger
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