| To: | Andi Kleen <ak@xxxxxxx> |
|---|---|
| Subject: | Re: System crash in tcp_fragment() |
| From: | george anzinger <george@xxxxxxxxxx> |
| Date: | Mon, 20 May 2002 17:34:21 -0700 |
| Cc: | kuznet@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx, davem@xxxxxxxxxx, ak@xxxxxx, pekkas@xxxxxxxxxx |
| Organization: | Monta Vista Software |
| References: | <20020521015407.A1296@wotan.suse.de> <200205210011.EAA04286@sex.inr.ac.ru> <20020521022007.A6248@wotan.suse.de> |
| Sender: | owner-netdev@xxxxxxxxxxx |
Andi Kleen wrote: > > On Tue, May 21, 2002 at 04:11:00AM +0400, A.N.Kuznetsov wrote: > > Hello! > > > > > It's unfortunately the truth. Even in_interrupt() is buggy current > > > on SMP preemptive. > > > > And why folks working on preemtive kernel do not repair this? > > To all that I remember it is well known issue. > > It is fixed on x86-64 @) > > if [ "$CONFIG_SMP" = "n" ]; then > bool 'Preemptible Kernel' CONFIG_PREEMPT > fi > That is not a fix! It is dodging the issue. ;) -- George Anzinger george@xxxxxxxxxx High-res-timers: http://sourceforge.net/projects/high-res-timers/ Real time sched: http://sourceforge.net/projects/rtsched/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml |
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