Re: PAE causing system crashes
You weren't by chance also using NFS? I was, all my other 5.x systems did not use NFS and are stable. I saw this same behavior and wound up going back to 4.11 to keep the system stable. Ted On Tuesday 17 January 2006 03:17 pm, Michael Barnett wrote: To ammend this slightly.. When running the PAE kernel, they will stay online indefinitely under little to no load. It is only when i want them to actually work will they freak out and reboot. -m On Jan 17, 2006, at 1:47 PM, Michael Barnett wrote: I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. uname -a looks like (hostname obscured): FreeBSD myhost.mydomain.com 5.4-RELEASE-p9 FreeBSD 5.4-RELEASE-p9 #2: Mon Jan 16 23:27:12 PST 2006 [EMAIL PROTECTED]:/usr/ obj/usr/src/sys/SMP-PAE i386 My problem is, if i don't enable PAE in the kernel, i can only address half the ram in the boxes, but... the machines are stable. If i do enable PAE, i can address all the memory, but they randomly reboot without dumping any errors or logging. To enable PAE, i am building and booting off the following kernel config: snip include PAE ident SMP-PAE options SMP options KVA_PAGES=512 /snip I added the KVA_PAGES options hoping to stabilize the machine (doesn't seem to have made any difference.) The only other tuning i am doing at the moment is in loader.conf: snip kern.maxdsiz=2147483648# Set the max data size /snip When i boot without PAE I use the generic SMP kernel, and the machine is stable. I know that there are a number of other kernel tunables i could be tweaking, but I am not really sure where to start as the machine dies silently. I was hoping that someone who has run a stable PAE kernel with 8G of ram + could point me in the right direction. Thanks, -Michael ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions- [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- | Ted WisniewskiE-Mail: [EMAIL PROTECTED]| | Manager, Systems GroupWEB:http://oz.plymouth.edu/~ted/ | | Information Technology Services| | Plymouth State University Phone: (603) 535-2661 | | Plymouth NH, 03264Fax:(603) 535-2263 | ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: PAE causing system crashes
On Wed, Jan 18, 2006 at 08:03:44AM -0500, Ted Wisniewski wrote: You weren't by chance also using NFS? I was, all my other 5.x systems did not use NFS and are stable. I saw this same behavior and wound up going back to 4.11 to keep the system stable. Hmm, I didn't notice the 5.4 somehow. Try using 6.0 instead - many important bugs fixed, not to mention the performance improvements. Kris P.S. Don't top-post pgp6WlYde1wid.pgp Description: PGP signature
Re: PAE causing system crashes
Nopers. No nfs... nothing at all fancy with the drives except the raid. -m On Jan 18, 2006, at 7:03 AM, Ted Wisniewski wrote: You weren't by chance also using NFS? I was, all my other 5.x systems did not use NFS and are stable. I saw this same behavior and wound up going back to 4.11 to keep the system stable. Ted On Tuesday 17 January 2006 03:17 pm, Michael Barnett wrote: To ammend this slightly.. When running the PAE kernel, they will stay online indefinitely under little to no load. It is only when i want them to actually work will they freak out and reboot. -m On Jan 17, 2006, at 1:47 PM, Michael Barnett wrote: I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. uname -a looks like (hostname obscured): FreeBSD myhost.mydomain.com 5.4-RELEASE-p9 FreeBSD 5.4-RELEASE-p9 #2: Mon Jan 16 23:27:12 PST 2006 [EMAIL PROTECTED]:/usr/ obj/usr/src/sys/SMP-PAE i386 My problem is, if i don't enable PAE in the kernel, i can only address half the ram in the boxes, but... the machines are stable. If i do enable PAE, i can address all the memory, but they randomly reboot without dumping any errors or logging. To enable PAE, i am building and booting off the following kernel config: snip include PAE ident SMP-PAE options SMP options KVA_PAGES=512 /snip I added the KVA_PAGES options hoping to stabilize the machine (doesn't seem to have made any difference.) The only other tuning i am doing at the moment is in loader.conf: snip kern.maxdsiz=2147483648# Set the max data size /snip When i boot without PAE I use the generic SMP kernel, and the machine is stable. I know that there are a number of other kernel tunables i could be tweaking, but I am not really sure where to start as the machine dies silently. I was hoping that someone who has run a stable PAE kernel with 8G of ram + could point me in the right direction. Thanks, -Michael ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions- [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- | Ted WisniewskiE-Mail: [EMAIL PROTECTED]| | Manager, Systems GroupWEB:http://oz.plymouth.edu/ ~ted/ | | Information Technology Services| | Plymouth State University Phone: (603) 535-2661 | | Plymouth NH, 03264Fax:(603) 535-2263 | ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
PAE causing system crashes
I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. uname -a looks like (hostname obscured): FreeBSD myhost.mydomain.com 5.4-RELEASE-p9 FreeBSD 5.4-RELEASE-p9 #2: Mon Jan 16 23:27:12 PST 2006 [EMAIL PROTECTED]:/usr/obj/ usr/src/sys/SMP-PAE i386 My problem is, if i don't enable PAE in the kernel, i can only address half the ram in the boxes, but... the machines are stable. If i do enable PAE, i can address all the memory, but they randomly reboot without dumping any errors or logging. To enable PAE, i am building and booting off the following kernel config: snip include PAE ident SMP-PAE options SMP options KVA_PAGES=512 /snip I added the KVA_PAGES options hoping to stabilize the machine (doesn't seem to have made any difference.) The only other tuning i am doing at the moment is in loader.conf: snip kern.maxdsiz=2147483648# Set the max data size /snip When i boot without PAE I use the generic SMP kernel, and the machine is stable. I know that there are a number of other kernel tunables i could be tweaking, but I am not really sure where to start as the machine dies silently. I was hoping that someone who has run a stable PAE kernel with 8G of ram + could point me in the right direction. Thanks, -Michael ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: PAE causing system crashes
To ammend this slightly.. When running the PAE kernel, they will stay online indefinitely under little to no load. It is only when i want them to actually work will they freak out and reboot. -m On Jan 17, 2006, at 1:47 PM, Michael Barnett wrote: I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. uname -a looks like (hostname obscured): FreeBSD myhost.mydomain.com 5.4-RELEASE-p9 FreeBSD 5.4-RELEASE-p9 #2: Mon Jan 16 23:27:12 PST 2006 [EMAIL PROTECTED]:/usr/ obj/usr/src/sys/SMP-PAE i386 My problem is, if i don't enable PAE in the kernel, i can only address half the ram in the boxes, but... the machines are stable. If i do enable PAE, i can address all the memory, but they randomly reboot without dumping any errors or logging. To enable PAE, i am building and booting off the following kernel config: snip include PAE ident SMP-PAE options SMP options KVA_PAGES=512 /snip I added the KVA_PAGES options hoping to stabilize the machine (doesn't seem to have made any difference.) The only other tuning i am doing at the moment is in loader.conf: snip kern.maxdsiz=2147483648# Set the max data size /snip When i boot without PAE I use the generic SMP kernel, and the machine is stable. I know that there are a number of other kernel tunables i could be tweaking, but I am not really sure where to start as the machine dies silently. I was hoping that someone who has run a stable PAE kernel with 8G of ram + could point me in the right direction. Thanks, -Michael ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions- [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: PAE causing system crashes
On Tue, Jan 17, 2006 at 01:47:30PM -0600, Michael Barnett wrote: I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. AFAIK mysql runs fine on amd64, so what was your problem with it? Kris pgpvdxU40gaWE.pgp Description: PGP signature
Re: PAE causing system crashes
It ran fine when we were only throwing a few dozen qps at it... when we tried to throw about 350qps its way, it was much much slower... slower than our existing server with significantly fewer resources available. I never could figure out what the issue was... tried recompiling with different options, allocating more and less memory to mysql (really to innodb as all our tables are innodb), and a number of system tweaks to no avail. Are you running it on an opteron, or on a xeon? I have heard things go much smoother on AMD hardware. Anyways.. the damage is done. We are back on i386 and I just need to make it go!Right now i am just running with the stable non-PAE kernel that limits access to 4G of memory while i work this out. -m On Jan 17, 2006, at 7:04 PM, Kris Kennaway wrote: On Tue, Jan 17, 2006 at 01:47:30PM -0600, Michael Barnett wrote: I have 3 dell machines with 2x xeon procs, 8G of ram, and a half terabyte raid 5. I attempted to run the AMD64 distribution on these boxes which was fine for everything except mysql, (which is all these boxes are going to do) so I reinstalled 5.4 i386. AFAIK mysql runs fine on amd64, so what was your problem with it? Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: PAE causing system crashes
On Tue, Jan 17, 2006 at 08:38:08PM -0600, Michael Barnett wrote: It ran fine when we were only throwing a few dozen qps at it... when we tried to throw about 350qps its way, it was much much slower... slower than our existing server with significantly fewer resources available. I never could figure out what the issue was... tried recompiling with different options, allocating more and less memory to mysql (really to innodb as all our tables are innodb), and a number of system tweaks to no avail. Are you running it on an opteron, or on a xeon? I have heard things go much smoother on AMD hardware. I've used it for mysql benchmarking (using supersmack) on amd hardware and got quite good performance from it. I've not used it with a 'real' database on that machine. Anyways.. the damage is done. We are back on i386 and I just need to make it go!Right now i am just running with the stable non-PAE kernel that limits access to 4G of memory while i work this out. It could be a driver issue, although since you're not adding drivers to the PAE config I don't know why this would be. Still, you could post your dmesg so that someone might be able to recognize a problem. Try looking for an updated BIOS. It could be that your HW has a buggy implementation. Kris pgpg5m1hGrQBp.pgp Description: PGP signature
