Re: panic in ioapic

[Stephen Degler <sdegler%degler.net@localhost>]

6bone%6bone.informatik.uni-leipzig.de@localhost wrote:
> Hello,
>
> I am using NetBSD 4.0_STABLE at a dell 1950 with two dual core CPUs 
> and 12GB ram. If I use a kernel without any apic everything works 
> fine. If I use a  kernel with enabled apic (one cpu or four cpus) 
> after some time the kernel gets a panic in Xintr_ioapic_level5
>
> you can find the screenshot at http://suse.uni-leipzig.de/dump.bmp
>
> the error occurs in different processes like ftp, httpd or rsync. but 
> always the apic funktion is affected.
>
> unfortunaly the debugger does not respond to any input and so I can't 
> report a full trace.
>
>
> any idea what the problem can be?
> Uwe
I see the exact same problem with dual opteron 8G platform.  Try 
increasing the kernel stack
I've set UPAGES to 5 in /usr/src/sys/arch/amd64/include/param.h.

You can also set INTRSTACKSIZE to 8k there as well, but this doesn't 
seem to have much effect for me.  I mention this because the i386 port 
is already set to that value.

We should open up a PR for this.
skd