Update: Completely stable with 7 VMs. Hasn't missed a beat for several days now. Will now run the pings again in 2 of 64PV from the virtual consoles (no graphics - and disconnected) and see if the host clock tick dies again. Cheers V On Thu, 24 Jun 2010 03:17:51 pm Virgil wrote: > Quick update: > > Added 3 more VMs. Total of 7 now on this "desktop" computer. > > 3x32PCFC6 > 1x32HVFC12 > 1x32HVwinXP-pro > 2x64PVFC12 > > Host is maxed out now. > > Everything going well when the pings are not running in the 64PVFC12 > machines. > > Will leave it going for another couple of days. > > Cheers > V > > p.s. FYI Samba4-Alpha12 Active Directory controller is working well on > 64PVFC12. > > On Wed, 23 Jun 2010 05:18:56 pm Virgil wrote: > > On Wed, 23 Jun 2010 03:30:52 pm Pasi Kärkkäinen wrote: > > > 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 > > > > Seems to be now. Pretty sure it was then too. > > > > udev-post 0:off 1:on 2:on 3:on 4:on 5:on 6:off > > wpa_supplicant 0:off 1:off 2:off 3:off 4:off 5:off 6:off > > xenconsoled 0:off 1:off 2:off 3:on 4:on 5:on 6:off > > xend 0:off 1:off 2:off 3:on 4:on 5:on 6:off > > xendomains 0:off 1:off 2:off 3:on 4:on 5:on 6:off > > xenstored 0:off 1:off 2:off 3:on 4:on 5:on 6:off > > ypbind 0:off 1:off 2:off 3:off 4:off 5:off 6:off > > [root@seanl64 ~]# ps -ef | grep xenconso > > root 1508 1 0 10:19 ? 00:00:00 /usr/sbin/xenconsoled > > --log=none --log-dir=/var/log/xen/console root 7815 7732 0 17:07 > > pts/5 00:00:00 grep xenconso > > > > Cheers > > V > > > > > > 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-3.4.3-0.9 > > > > > > > > > > > > 1. fc 13. 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 > > -- > xen mailing list > xen@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen
