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Re: System crash in tcp_fragment()

To: kuznet@xxxxxxxxxxxxx
Subject: Re: System crash in tcp_fragment()
From: Andi Kleen <ak@xxxxxxx>
Date: Tue, 21 May 2002 02:20:07 +0200
Cc: Andi Kleen <ak@xxxxxxx>, george@xxxxxxxxxx, netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx, davem@xxxxxxxxxx, ak@xxxxxx, pekkas@xxxxxxxxxx
In-reply-to: <200205210011.EAA04286@xxxxxxxxxxxxx>
References: <20020521015407.A1296@xxxxxxxxxxxxx> <200205210011.EAA04286@xxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
User-agent: Mutt/1.3.22.1i
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

-Andi


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