My workplace just got a bunch of dual athlon 64 x2 machines that we're loading
centos 4.x on and using to replace our older Sun machines. Unfortunately, we
get wierd behaviors when running the SMP kernels. Bursty keyboard interrupts
(you can be typing just fine when suddenly the system speeds up and
iiiiiiiiiittttttttt'''''''''l look likeeeee ttttttthhhhhhhis) and timing issues
(the system clock seems to gain 7 minutes every hour).
Switch to the single processor kernel and all the problems go away.
Some of them are from Monarch Computer Systems, which supposedly puts out
pretty reliable Linux boxes. Others are from other vendors, but the same
hardware configs. All have wierd behaviors with the SMP kernel.
Any recommendations? Computer related I mean. Right now considering how much
we have going on we're thinking of just punting and hoping it'll go away with a
later kernel update.
-Charles
From [EMAIL PROTECTED] Mon Nov 21 13:07:54 2005
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Date: Mon, 21 Nov 2005 13:04:36 -1000
From: Brian Chee <[EMAIL PROTECTED]>
Subject: Re: [LUAU] SMP kernel wierdness
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hmmm....my tyan based Opterons (64x2) work great on both debian and
rhel...no keyboard problems to report here....it even behaves when running 8
VMWare images...this was also using a Raritan KX-232 IP KVM using the CAT5
dongles...which traditionally had keyboard wake up problems...but that went
away once the OHCI drivers got updated.
Sorry I was not of help...but those two distros are not giving me
problems....they also behaved on the 8-way Opterons from HP also with
VMWare...but we got that up to 16 images...without breathing hard...both
were 2.6 kernels.
/brian chee
University of Hawai'i at Manoa
School of Ocean & Earth Science & Technology
Advanced Network Computing Lab
1680 East West Road, POST rm 311
Honolulu, HI 96822
808-956-5797 voice, 877-284-1934 fax
----- Original Message -----
From: "Charles Lockhart" <[EMAIL PROTECTED]>
To: "LUAU" <luau@lists.hosef.org>
Sent: Monday, November 21, 2005 11:24 AM
Subject: [LUAU] SMP kernel wierdness
My workplace just got a bunch of dual athlon 64 x2 machines that we're
loading centos 4.x on and using to replace our older Sun machines.
Unfortunately, we get wierd behaviors when running the SMP kernels. Bursty
keyboard interrupts (you can be typing just fine when suddenly the system
speeds up and iiiiiiiiiittttttttt'''''''''l look likeeeee ttttttthhhhhhhis)
and timing issues (the system clock seems to gain 7 minutes every hour).
Switch to the single processor kernel and all the problems go away.
Some of them are from Monarch Computer Systems, which supposedly puts out
pretty reliable Linux boxes. Others are from other vendors, but the same
hardware configs. All have wierd behaviors with the SMP kernel.
Any recommendations? Computer related I mean. Right now considering how
much we have going on we're thinking of just punting and hoping it'll go
away with a later kernel update.
-Charles
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