Subject: Re: Single-user reached on multiprocessor Alpha kernel
To: None <,>
From: Alistair Crooks <>
List: tech-smp
Date: 11/21/2000 03:29:53

Great news!

Much kudos to you and Bill.


On Mon, 20 Nov 2000 13:01:05 -0800, wrote:

>  Thanks to Bill Sommerfeld who found a fatal bug in my CPU spinup
>  trampoline, we have gotten to single-user mode on a multiprocessor
>  Alpha running a multiprocessor kernel which runs both kernel and
>  user code on the secondary CPUs.
>  Now, the machine hung when we tried to do anything interesting (like
>  "fsck" :-), but once again, Bill came to the rescue and found the
>  deadlock while I was on my way to work.  I've committed a fix for
>  the deadlock, and will test it tonight when I get home.  It's likely
>  we'll have multi-user tonight.
>  -- 
>          -- Jason R. Thorpe <>

Alistair Crooks (

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