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SubjectRe: [2.4] Nforce2 oops and occasional hang (tried the lockups patch, no difference)
FromDisconnect <>
DateThu, 18 Dec 2003 13:52:04 -0500
Tues evening it hardlocked - no messages, no blinking keyboard lights,
nothing.  Yesterday it did it again, and this time it wouldn't get more
than 5-10 minutes of uptime without hanging no matter what I did to
memory/cpu timings.  (Even underclocked it to 133 and 1G with no
change.)  So its unfortunately back on a stock 2.4.23-pre9 with
noapic/noacpi. (It disables one of the sets of usb ports, as I recall,
but it mostly works...)

In theory I'll have the ram upgrades and such tonight, so I can swap the
services to another machine and stress it a bit with different sticks,
new drives, different controller, etc.  Other than memtest86 (and some
kernel builds, bonnie, etc), are there any recommended tests?

On Mon, 2003-12-15 at 11:40, Disconnect wrote:
> Thanks greatly for the tips, btw.  Its much appreciated :)
> 
> Also, I think I forgot to mention (doh) its an Epox 8rda+.
> 
> On Fri, 2003-12-12 at 21:25, Ross Dickson wrote:
> > I am not certain your problems are nforce2 type specific.
> > Standard response: I don't suppose you can try a different stick of ram?
> 
> Unfortunately not - its a single kingston hyper-x 3200 stick.  (In
> theory I'll be moving it up to 700M or a gig in the next couple months,
> at which point I'll be in position to swap ram around and so forth.)  I
> did get the bios all tuned and run memtest-mmx on it for 24 hours before
> the system installation though, and it passed.  What I did yesterday is
> turn the memory frequency down from 200 to 166. (Which leaves the cpu
> overclocked by about 33 mhz, something I think it will survive just fine
> ;) ..)
> 
> > The local apic ack delay timing patch needs athlon cpu and amd/nvidia ide on in 
> > kern config to kick in. If you are using it then I highly recommend uniprocessor 
> > ioapic config as well to go with it to route the 8254 timer irq0 through pin 0 of 
> > ioapic as using the apic config alone leaves a lot of ints generated on irq7 
> > which can cause problems. (Reason for 8259 making them spurious on irq7 
> > is explained in 8259A data sheet)
> 
> Thats how I'm running it now - its gone about 1 day without any oopses. 
> (In the past it would go anywhere from hours to about a week, so the
> results aren't in yet.)  
> 
> On the basis of it being a memory issue I poked around the epox site and
> noticed something I hadn't seen before - they recommend what might be
> different memory timings (I'll have to check if/when it crashes again):
> 
> If your PC3200 memory is not stable try the following BIOS settings:
> 
> Memory Frequency = 100%
> Memory Timing = Expert
> T(RAS) = 7
> T(RCD) = 3
> T(RP) = 3
> CAS Latency = 2.5
> 
> Adjust the memory frequency above until you reach the resulting
> frequency of 200MHz (for PC3200).
-- 
Disconnect <lkml@sigkill.net>

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