Re: Brand new machine mystery lockup

On Sat, 27 Oct 2007 13:48:48 +0000, Yan Seiner wrote:

I just built a server that seems to be posessed, or at least flaky.

It's built on an Asus M2N-SLI DELUXE mobo, with an AMD Athlon 64 X2 4600+
CPU, 2 gig RAM, and an Adaptec ASC-29320ALP SCSI adapter. The SCSI
adapter has 2 Fujitsu 36 GB 15K drives in a software RAID-1. The power
supply is a SILVERSTONE ST50EF-SC ATX12V / EPS12V 500W.

Once in a while (like every 2-5 days) the machine locks up:

Screen goes black, all fans go to full-on, and neither the power nor the
reset button will work. It takes a flip of the power switch on the PS to
restart it.

Normally I would say that it's the PS, but sometimes - only sometimes,
though - the system won't boot because mdadm can't find any of the md
devices to boot. At this point the kernel's already booted off the SCSI
drives, so I know they're spinning; just mdadm can't find them. This
typically happens on a soft-reboot; again, I have to fully power cycle
the machine to get it to boot.

Of course there are no errors anywhere at any time in any log. The
machine just stops.

Google says people have had trouble with that SCSI adapter under windows
but that seems to be a driver problem and it's reported to work fine with
linux.

So, I have 3 possible culprits:

Power Supply
Mobo
SCSI adapter

Any place I can look? Any diagnostics I can do? I have about 2 weeks
left of Newegg's 30 day return timeframe, so I can do some testing....

YS:

I believe the entire ASUS-m2n line is 'queered' w.r.t. *nix. That is ,
every model will fail some function with every linux distro. Different
failures on different m2n_mobos for different distros.
Do a GOOGLE -- then get out your 'tin hat'. It's certainly not a hw
cluster*k that M$ would ever ...

nss
****

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