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Date:      Tue, 7 Jan 2003 16:54:43 +0100
From:      Robert Bopko <zero@estimese.net>
To:        Mark <sitedrifter@netscape.net>
Cc:        smp@freebsd.org
Subject:   Re: Update on SE7500 P4 SMP..
Message-ID:  <20030107155443.GA14554@finom.estimese.net>
In-Reply-To: <3E1A2BBD.4060107@netscape.net>
References:  <3E1A2BBD.4060107@netscape.net>

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hi,

we are talking about intel se7500cw2 server board, other
e7500 chipset motherboards like supermicro works fine.
 
On Mon, Jan 06, 2003 at 08:22:05PM -0500, Mark wrote:
> Sorry if I am off base here but I have not seen this complete thread but 
> hopefully what I write might help.
> 
> I am running FreeBSD 4.7 stable (latest kernel source) on a P4 dual Xeon 
> Supermicro motherboard. When I recompiled the kernel for SMP and 
> rebooted it would always panic on the APIC interupt delivery. I then 
> enabled (just trying different things after researching this problem) 
> hyperthreading in the bios. The machine booted into FreeBSD with no 
> problems and 4 CPUs are showing as it should. (Hyperthreading is 
> basically a virtual CPU within the CPU). I am currently running CPU 
> intesive programs and the machine seems stable.
> 
> 
> The only issue I have is that dmesg shows P4 1066Mhz speed which is 
> wrong as these are 2.4Ghz Xeons.I also tried the define bus_clock hack 
> but it did not help either but I was mostly hoping it would help with 
> proper CPU speed detection.The motherboard I am using is a Supermicro 
> SUPER X5DAE Intel 7505 chipset.
> 
> Here are some screen captures of my dmesg output and also top
> 
> APIC_IO: Testing 8254 interrupt delivery
> APIC_IO: routing 8254 via IOAPIC #0 intpin 2
> SMP: AP CPU #3 Launched!
> SMP: AP CPU #2 Launched!
> SMP: AP CPU #1 Launched!
> 
> 
>  PID USERNAME PRI NICE  SIZE    RES STATE  C   TIME   WCPU    CPU COMMAND
> 23651 book       64   0 13604K 12892K CPU2   2  92:56 99.02% 99.02% perl
> 25648 root      -6   0  1200K   788K CPU0  1   0:03  3.74%  3.61% find
> 25591 sysadmin  28   0  1908K  1040K CPU1   0   0:01  0.00%  0.00% top
> 
> 
> I can only guess FreeBSD needs to support these chipsets when 
> Hyperthreading is disabled, unless it needs to be but I doubt that.
> 
> 
> Mark

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