URGENT -- AP #1 (PHY #1) failed -- what does this mean?

[Glenn Dawson]

At 12:51 AM 7/29/2005, Chad Leigh -- Shire.Net LLC wrote:
>Hi
>
>Sorry for the URGENT line.  I have a critical server running 5.4- 
>RELEASE-p1.  It is a dual AMD MP 2800+ (Gigabyte board) with 4GB RAM
>and an Adaptec 2100S raid controller.
>
>Running (obviously) an SMP kernel.  I recompiled the kernel this
>afternoon and changed one line --  the
>
>options  HZ  line from HZ=1100 to HZ=400 as a test of PHP
>performance.  That was the only thing changed  (the machine had been
>up since I installed 5.4 on it June 1).  I built and installed the
>kernel and tonight I rebooted the machine.
>
>Now when it boots it comes up and
>
>real memory = 3758030848 (3583 MB)
>avail memory = 3678240768 (3507 MB)
>ACPI APIC Table: <GBT     AWRDACPI>
>AP #1 (PHY# 1) failed!
>panic y/n? [y]
>
>
>What does this mean (and what do I do about it)?

That basically means that the kernel failed to start the second CPU.

-Glenn


>I am off to Google but as I am in a real tight spot I thought I would
>ask for some help asap before I go and try and figure this out.
>
>Thanks
>Chad
>
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