as far as we could deduce so far (this is on two different physical maschines) it seems to happen more often when there is a large load on a mounted iscsi drive (which is provided by the same hypervisor the kvm is running on). The specific load is normal file writes AND sql server database traffic.
***Setup*** SmartOS ------- SmartOS "20150219T102159Z" "CPU Type": "Intel(R) Xeon(R) CPU E5-1650 v2 @ 3.50GHz", "CPU Total Cores": 12, "MiB of Memory": "131037" iSCSI Setup like this: http://superuser.com/questions/386506/hosting-iscsi-on-smartos ISCSI is a sparse drive, but the iscsi provider seems stable VM -- - Windows 2012 R2 - virtio driver: virtio-win-0.1-100 (the maschine of the dump). but we also tried with last stable virtio-win-0.1.96.iso on the other machine. - One network card (model virtio) iSCSI Drive mounted and NTFS Formatted. ***Errors*** The Windows System Log contains messages indicating iscsi networking issues: Error ID 7 The initiator could not send an iSCSI PDU. Error status is given in the dump data. As described here https://support.microsoft.com/en-us/kb/981482. Registry changes as indicated (we tried on one of the machines) did not have any impact. Shortly thereafter the iscsi connection is dropped and then reconnects. ***Status*** For now we moved the databases of the iscsi drive and back to the kvm c: drive and continue to monitor whether this has any effect. We are also trying to reproduce on a third machine to further isolate the issue. On Wed, May 27, 2015 at 7:15 AM, David Finster < [email protected]> wrote: > Is there anything under /zones/<vm uuid>/cores for the particular virtual > machine? > > On 27 May 2015, at 3:02 pm, Matthias Goetzke <[email protected]> wrote: > > Vmadm start is indeed required. The vm is just off and needs to be > restarted with vmadm start. > > What can I do do diagnose this issue ? > > Regards > Matthias > ------------------------------ > From: David Finster <[email protected]> > Sent: 27.05.2015 00:47 > To: [email protected] > Subject: Re: [smartos-discuss] Windows KVM Crashing > > Hi Matthias > > Without knowing more about the crash scenario, it might be difficult to > diagnose. If the crash/BSOD originates from the virtio disk driver, then > there may not be anywhere to write crash information to. > > It might be worth setting Windows to not restart on BSOD, which can be > done through Control Panel -> System and Security (System if small icons) > -> Advanced System Settings -> Startup and Recovery and uncheck > ‘Automatically restart’. > > Unfortunately you would be sacrificing the auto-restart feature but when > you next notice the box is down you should be able to jump on VNC and see > what the error condition was. > > If Windows is just BSOD’ing and rebooting within the VM itself then the > qemu processes won’t exit so the vm.log output is probably correct. The > only time this would be different is if Windows isn’t actually crashing, > but qemu is, but that would require a vmadm start <uuid> to get it going > again. > > Thanks, > Dave > > On 26 May 2015, at 9:36 pm, Matthias Götzke <[email protected]> wrote: > > Hi, > > we are currently experiencing the same issue: with SmartOS > 20150219T102159Z. There is no apparent reason with about 100GB free in the > pools and no entries in the windows system log other than it restarted for > unknown reasons. > > the vm.log just shows the boot process, the previous logs are all empty. > > We did use virtio drivers from january and did switch back to stable from > dezember in case that causes issues. But i am not sure how a driver failure > could initiate a full reboot without leaving a bluescreen dump. > > did anybody solve this or track this down further ? > > thanks, > Matthias > > On Wed, Jul 23, 2014 at 6:34 PM, Mark Creamer via smartos-discuss < > [email protected]> wrote: > >> Hi, I have a Windows 2008 R2 KVM that crashes constantly. There is >> nothing in the system log, except after it comes up there is the usual >> "previous shutdown was unexpected." There is no bluescreen (bugcheck) >> recorded. None of my other KVMs are having the same issue, and this one is >> a problem on both the original host I built it on, and another host I moved >> it to. >> >> While I'm troubleshooting further, is there an updated driver for the >> virtual disk? I'm not sure where to locate that and I thought I might try >> that next. >> >> Thanks >> >> -- >> Mark >> *smartos-discuss* | Archives >> <https://www.listbox.com/member/archive/184463/=now> >> <https://www.listbox.com/member/archive/rss/184463/22136188-453d0422> | >> Modify <https://www.listbox.com/member/?&;> Your Subscription >> <http://www.listbox.com/> >> > > *smartos-discuss* | Archives > <https://www.listbox.com/member/archive/184463/=now> > <https://www.listbox.com/member/archive/rss/184463/25738179-216c4b5f> | > Modify <https://www.listbox.com/member/?&;> Your Subscription > <http://www.listbox.com/> > > > *smartos-discuss* | Archives > <https://www.listbox.com/member/archive/184463/=now> > <https://www.listbox.com/member/archive/rss/184463/22136188-453d0422> | > Modify <https://www.listbox.com/member/?&;> Your Subscription > <http://www.listbox.com/> > *smartos-discuss* | Archives > <https://www.listbox.com/member/archive/184463/=now> > <https://www.listbox.com/member/archive/rss/184463/25738179-216c4b5f> | > Modify <https://www.listbox.com/member/?&;> Your Subscription > <http://www.listbox.com/> > > > *smartos-discuss* | Archives > <https://www.listbox.com/member/archive/184463/=now> > <https://www.listbox.com/member/archive/rss/184463/22136188-453d0422> | > Modify > <https://www.listbox.com/member/?&;> > Your Subscription <http://www.listbox.com> > ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
