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List:       netbsd-port-amd64
Subject:    Re: Interrupt routing patch for testing
From:       Lars Heidieker <lars () heidieker ! de>
Date:       2008-05-10 10:11:21
Message-ID: 4BE9B87E-F424-404A-8A2C-D24D904FE64C () heidieker ! de
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On 8 May 2008, at 23:12, Joerg Sonnenberger wrote:

> Hi all,
> attached is a critical patch that potentially effects all x86 users
> (beside Xen domU). It changes the way interrupt slots are allocated.
>
> The old code could allocate two different interrupt vectors for the  
> same
> hardware interrupt when IOAPIC is used and the BIOS doesn't initialise
> all devices. This typically happened for cbb0 on newer laptops.
>
> With the patch, the code is simplified and I can actually start on
> making the round robin scheduling work :-)
>
> Please test the patch on as much systems as you can. If you run into
> problems, e.g. system hangs, please provide me (offlist) with a  
> dmesg of
> a kernel build with -DINTRDEBUG and MPVERBOSE option w/ and w/o the
> patch.
>
>


Hi there,

I just patched my current i386 running on an Athlon X2 and it works  
not problems so far,
just what is curious is that the individual interrupt counters in  
vmstat -i and systat vm disapeart,
but that happened before the patch.

- --

Viele Grüße,
Lars Heidieker

lars@heidieker.de
http://paradoxon.info

- ------------------------------------

Mystische Erklärungen:
Die mystischen Erklärungen gelten für tief;
die Wahrheit ist, dass sie noch nicht einmal oberflächlich sind.

   -- Friedrich Nietzsche
   [ Die Fröhliche Wissenschaft Buch 3, 126 ]




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