Been running 2.2.12 w/ SMP, Raid on / and devfs with an 18 day uptime with
no hickups.
The system is running a modified CVS server, MySQL, and Apache .. still
running strong.
"Jason A. Diegmueller" wrote:
> Just for the record, I've been up and running for 6.5 days now,
> which never before happened under SMP. All I did was disable
> SMP (running only one of the two processors, but since load so
> is incredibly low, it really doesn't matter to me) and upgrade
> to 2.2.12 (the RAID people told me raid0145-19990824 patched fine
> against 2.2.12, so that's why I'm at 2.2.12 now).
>
> I don't feel the 2.2.12 upgrade is what solved the problem, so
> all I can seem to blame the hardlockups on is the SMP support in
> the kernel. One reply mentioned double-checking to make sure
> the stepping of the two processors was identical; it was. I'm
> not sure what else it could be. The machine, I reiterate, ran
> perfectly stable under SCO UNIX, so I don't feel it is the hardware.
>
> The main goal here was to get the system stable. I feel it is. But
> if anyone has any ideas as to why SMP would cause the hardlockups,
> or if there is anything I can try to help out the community and track
> down what would cause this problem, be sure to let me know.
>
> Thanks for everyone's help.
>
> ::: Jason A. Diegmueller
> ::: Microsoft Certified Systems Engineer
> ::: 513/542-1500 WORK // [EMAIL PROTECTED]
> ::: Systems Administrator, Bertke Systems Innovations
>
> : -----Original Message-----
> : From: Jason A. Diegmueller
> : Sent: Wednesday, September 15, 1999 1:08 PM
> : To: 'Heinz Christian'; 'Tom Kunz'; 'David Holl'; 'Michael
> : Sloan'; 'Mike
> : Black'; 'Jean-Francois Patenaude'; Jay Klute
> : Cc: [EMAIL PROTECTED]; '[EMAIL PROTECTED]'
> : Subject: RE: Linux box locking up ..
> :
> :
> : In response to the HP Netserver LXe Pro lockup issue I had before,
> : and with the responses I've gotten so far, here is my current
> : plan of attack. Any further input or suggestions are as always
> : welcome:
> :
> : 1. I'm compiling without SMP support as we speak. The most this
> : thing has made it is 3 full days without locking up solid,
> : so if it runs for a week I'll blame it on 2.2.11 SMP, I guess.
> : NOTE: I can't go newer then 2.2.11 at this time due to the fact
> : the latest released raid0145 patch is for 2.2.11. RAID
> : people, I haven't tried it yet: Will it patch 2.2.12 without
> : too much hassle?
> : 2. If still getting lockups without SMP, I'm going to try pulling
> : the Intel EEPro and let a 3c905B have a whack at it.
> : 3. I just thought of this, but the 78xx firmware is probably still
> : the original from when the machine was purchased in 1996. I
> : guess I could broach the firmware-update route. I feel stupid
> : for not having done this yet.
> : 4. If still no luck, I could possibly wheel a different SCSI
> : controller out there. Admittedly, I've never used anything but
> : IDE or 2940UWs in Linux boxes; what other cards are fairly well-
> : supported and reliable? I'll try disabling onboard and going
> : with a different controller if we get all the way down here to
> : the fourth point. [grin]
> :
> : Thank you for all who have assisted so far, and in the future.
> :
> : ::: Jason A. Diegmueller
> : ::: Microsoft Certified Systems Engineer
> : ::: 513/542-1500 WORK // [EMAIL PROTECTED]
> : ::: Systems Administrator, Bertke Systems Innovations
> :
> : : -----Original Message-----
> : : From: Mike Black [mailto:[EMAIL PROTECTED]]
> : : Sent: Wednesday, September 15, 1999 10:58 AM
> : : To: Jason A. Diegmueller
> : : Cc: [EMAIL PROTECTED]
> : : Subject: Re: Linux box locking up ..
> : :
> : :
> : : I've got similar setup with Dual PIII/450, AIC7880 on-board,
> : : 2940U2W, IDE
> : : root drive and it locks up me real quickly when doing heavy
> : : disk i/o on the
> : : RAID set. I'm isolating this system now to hopefully debug
> : : this problem.
> : :
> : : ________________________________________
> : : Michael D. Black Principal Engineer
> : : [EMAIL PROTECTED] 407-676-2923,x203
> : : http://www.csi.cc Computer Science Innovations
> : : http://www.csi.cc/~mike My home page
> : : FAX 407-676-2355
> : : ----- Original Message -----
> : : From: Jason A. Diegmueller <[EMAIL PROTECTED]>
> : : To: <unlisted-recipients:; (no To-header on input)>
> : : Cc: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> : : Sent: Wednesday, September 15, 1999 10:43 AM
> : : Subject: Linux box locking up ..
> : :
> : :
> : : I must say I've never seen this in my entire life, so
> : : I wanted to get some input. This is sent to both the
> : : linux-admin and linux-raid lists.
> : :
> : : I have a customer/friend (yes, the two-in-one combo that
> : : is often noted for being dangerous =) who recently upgraded
> : : an old SCO setup they had to SCO Openserver 5.0.5. This
> : : included selling him new hardware and the works. This meant
> : : that his old HP Netserver LXe Pro (which is a gorgeous machine)
> : : became a spare server for us to utilize.
> : :
> : : Being the avid Linux geek I am, I immediately dumped Linux
> : : on there. The Mylex DAC960 was not supported (the card
> : : is the old 2.x firmware variety, and HP wanted money to upgrade
> : : us to the 3.x series) so I could not utilize the hardware
> : : RAID. Instead, I went with software.
> : :
> : : It is a dual-processored machine (capable of 4, only utilizing
> : : two PPro 200's at this time, 512k cache each), so I have
> : : SMP compiled it. So at the current time, it basically is:
> : : linux-2.2.11-SMP with raid0145-990824 with four 2gb drives
> : : in a RAID-5. The SCSI bus is onboard Adaptec 78xx. The
> : : network card is an Intel Etherexpress PRO.
> : :
> : : The problem? It locks up. Solid. I've never in my life
> : : seen a Linux box just lock up, with no hints anywhere in
> : : logfiles. On the other hand, I've never gotten my hands on
> : : hardware this "big" (This sucker was $31k retail when they
> : : bought it). The machine is currently virutally unused (other
> : : then qpopper for POP mail); SAMBA is setup on it, but is
> : : currently completely unutilized at this time.
> : :
> : : It seems to lock hard every few days. Maybe 3 or 4? I see
> : : no coorelation of activity (ie, users doing something) and
> : : lockups, but am willing to dig a little deeper if someone has
> : : an idea.
> : :
> : : I was wondering two things:
> : : A. Are there any known incompatibilities with any of this
> : : hardware? I've seen some mentions of aix78xx, SMP, and
> : : raid causing problem. Is this what I'm bumping in to?
> : : B. Is there anything I can do to figure out WHAT is causing
> : : the hard lockups? Again, no hints in /var/log/messages or
> : : anywhere else. Possibly a serial cable to a dumb terminal
> : : constantly dumping system information?
> : :
> : : Any information or clues would be more then appreciated. Replies
> : : directly to the list are more then fine; I subscribe to both.
> : :
> : : Thanks.
> : :
> : : ::: Jason A. Diegmueller
> : : ::: Microsoft Certified Systems Engineer
> : : ::: 513/542-1500 WORK // [EMAIL PROTECTED]
> : : ::: Systems Administrator, Bertke Systems Innovations
> : :
> : :
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> : : --====---====-
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> : :
> :
--
Mark Ferrell : [EMAIL PROTECTED]
(972) 685-7868 : Desk
(972) 685-4210 : Lab
(972) 879-4326 : Pager
