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Date: Wed, 6 Jul 2005 10:32:14 +0200
From: Claus Guttesen <kometen@gmail.com>
To: Blaz Zupan <blaz@si.freebsd.org>
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Cc: freebsd-stable@freebsd.org, Kris Kennaway <kris@obsecurity.org>
Subject: Re: FreeBSD -STABLE servers repeatedly crashing.
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> I'm experiencing the same crashes as Matt, but on 5.4-RELEASE-p3. The mac=
hine
> is a HP DL380 G3 and it is heavily loaded (postfix mail server running
> amavisd-new with antivirus and antispam, so it has heavy IO and CPU load)=
. It
> does not survive more than a couple of hours, while it is rock stable run=
ning
> 4.11. We have four machines like this, three of them are now again runnin=
g
> 4.11 and we left the fourth one at 5.4. We have two other DL380 servers
> working on our outbound mail queue, but they are not SMP and they are roc=
k
> stable on 5.4.
>
> CPU: Intel(R) Xeon(TM) CPU 3.06GHz (3049.93-MHz 686-class CPU)
>    Origin =3D "GenuineIntel"  Id =3D 0xf29  Stepping =3D 9
>    Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR=
,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>    Hyperthreading: 2 logical CPUs

Have you tried to disable HTT? It's doesn't give you alot, and in some
cases it decreases performance.

regards
Claus