On Wed, Jun 23, 2010 at 11:11:58AM +1000, Virgil wrote: > Hi Pasi, > > Had a hiccup overnite: > > The host became unresponsive in a weird way. The time stopped incrementing. > > Turns out the clock stopped ticking (which I put down to the interrupts being > disconnected). > > Anyway I decided I'd reset the time using 'time -s 10:41:30'. > > Kaboom, or actually deathly silence. The machine fully stopped dead in its > tracks. > > Just prior to this I connected to the console of one of the 64PV machines > which was just running a ping from yesterday. Anyway, 60,000 or so lines of > pings went to the console zipping up the screen. Then it was dead. I did a > CTRL-C and eventually it returned to the prompt. > > So I looked at the other 64PV machine, which was also pining, and identical > situation. > > So I reckon, there's some kind of buffer overflow going on when you're not "xm > console MACHINE" connected. Once you pass 60,000 lines of text this buffer > overflow causes the RTC to hangup somehow. > Do you have xenconsoled running? I've noticed PV guests that print a lot to the console will stall if xenconsoled is not running.. xenconsoled needs to clear the guest console buffer.. -- Pasi > I pressed the reset button, but this time the 2 64PV machines are not logged > in. I'll just let it go and see if it keeps going. > > Cheers > V > > On Tue, 22 Jun 2010 04:29:06 pm Pasi Kärkkäinen wrote: > > On Tue, Jun 22, 2010 at 12:03:53PM +1000, Virgil wrote: > > > Hi Pasi, > > > > > > On Mon, 21 Jun 2010 08:57:55 pm Pasi Kärkkäinen wrote: > > > > On Mon, Jun 21, 2010 at 01:56:36PM +0300, Pasi Kärkkäinen wrote: > > > > > On Mon, Jun 21, 2010 at 02:28:15PM +1000, Virgil wrote: > > > > > > Another quick update.... > > > > > > > > > > > > xen-4.0.1-0.1.rc3.fc13.src.rpm just compiled this under fc12. > > > > > > > > > > > > Identical results with this too (i.e. it's probably in the kernel). > > > > > > > > > > > > I have a (silly) idea for the serial console. The wiki page > > > > > > recommends using a phone camera to capture the screen.... > > > > > > > > > > > > Well my idea is to add an n-millisecond delay every time the output > > > > > > stream in Xen sees a \n. This would delay the screen updates enough > > > > > > for the camera to see them. The n should be configurable on the > > > > > > kernel boot command line. It's set to 0 right now. > > > > > > > > > > Yeah, we really need to get a log somehow to troubleshoot your > > > > > problem. > > > > > > > > > > Serial console log would be the best: > > > > > http://wiki.xensource.com/xenwiki/XenSerialConsole > > > > > > > > Btw are you running the latest kernel: > > > > http://koji.fedoraproject.org/koji/taskinfo?taskID=2254110 > > > > > > > > Or are you running custom/self compiled kernel? > > > > > > Everything is working with: > > > xen-4.0.1-0.1.rc3 compiled from source on fc12 machine and > > > 2.6.32.14-1.2.107.xendom0.fc12.x86_64 from the myoung repo. > > > > > > All fixed. > > > > Good to hear it works! > > > > > We also now have a "null modem" cable to another old computer with a COM > > > port. Turns out I was the only old man that could remember what a null > > > modem cable is. The young guy said "wtf"? Also turns out I'm the only > > > one who knows what minicom is and what 8N1 means :-) > > > > Hehe.. yeah I guess young people don't get to play with serial consoles > > nowadays, until they're doing networking stuff.. > > > > So I guess most SOL devices in servers go unused.. :) > > > > -- Pasi > > > > > All VMs are now running concurrently. > > > > > > Very happy again. Thanks. > > > V > > > > > > > -- Pasi > > > > > > > > > > Cheers > > > > > > V > > > > > > > > > > > > On Mon, 21 Jun 2010 12:10:17 pm Virgil wrote: > > > > > > > Just a quick update: > > > > > > > > > > > > > > Just tried xen-4.0.0-2. Recompile from source on fc12.x86_64. > > > > > > > > > > > > > > identical behaviour. > > > > > > > > > > > > > > Cheers > > > > > > > V > > > > > > > > > > > > > > On Fri, 18 Jun 2010 03:17:19 pm Virgil wrote: > > > > > > > > On Sat, 29 May 2010 11:26:50 pm M A Young wrote: > > > > > > > > > If anyone wants to test xen 3.4.3, I have put up a source RPM > > > > > > > > > at > > > > > > > > > http://myoung.fedorapeople.org/dom0/src/xen-3.4.3-0.91.fc13. > > > > > > > > > src.r pm > > > > > > > > > > > > > > > > > > Michael Young > > > > > > > > > > > > > > > > > > -- > > > > > > > > > xen mailing list > > > > > > > > > xen@xxxxxxxxxxxxxxxxxxxxxxx > > > > > > > > > https://admin.fedoraproject.org/mailman/listinfo/xen > > > > > > > > > > > > > > > > Hi list, > > > > > > > > > > > > > > > > Host crashing on 64FC12 kernel -105 dom0 when 2 PV64 machines > > > > > > > > are run. > > > > > > > > > > > > > > > > I can run HV32WinXP and HV32FC12 and 1 PV64FC12 all at the same > > > > > > > > time. > > > > > > > > > > > > > > > > However, when any combination involves 2 PV64FC12 (kernel > > > > > > > > version doesn't matter) the host crashes. > > > > > > > > > > > > > > > > Running on the -97 dom0 everything works in all combos. > > > > > > > > > > > > > > > > Using Xen 3.4.3. > > > > > > > > > > > > > > > > Turning off the virt network cards in the PV64FC12 machines > > > > > > > > makes things go (obviously not much use though). > > > > > > > > > > > > > > > > Tried disabling IPV6, firewall stuff etc. etc. > > > > > > > > > > > > > > > > Sometimes it would fire up and go but whichever machine is > > > > > > > > started second gets really long ping times like it's not > > > > > > > > receiving unless it sends something (if that makes sense). > > > > > > > > Sooner or later the host crashes. > > > > > > > > > > > > > > > > Strangely a PV64FC12 and a PV64FC10 machine coexist happily. > > > > > > > > It's only when a second PV64FC12 machine starts up. > > > > > > > > > > > > > > > > V > > > > > > > > -- > > > > > > > > xen mailing list > > > > > > > > xen@xxxxxxxxxxxxxxxxxxxxxxx > > > > > > > > https://admin.fedoraproject.org/mailman/listinfo/xen > > > > > > > > > > > > > > -- > > > > > > > xen mailing list > > > > > > > xen@xxxxxxxxxxxxxxxxxxxxxxx > > > > > > > https://admin.fedoraproject.org/mailman/listinfo/xen > > > > > > > > > > > > -- > > > > > > xen mailing list > > > > > > xen@xxxxxxxxxxxxxxxxxxxxxxx > > > > > > https://admin.fedoraproject.org/mailman/listinfo/xen > > > > > > > > > > -- > > > > > xen mailing list > > > > > xen@xxxxxxxxxxxxxxxxxxxxxxx > > > > > https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen
