It's been running on 3.16rc3 upstream for 30 hrs now and the problem has not reoccured. With 3.13 I'd see the problem after 12-24 hours, so this is a good sign.
Linux 3.16.0-031600rc3-generic #201406291835 SMP Sun Jun 29 22:36:41 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Marking it as kernel-fixed-upstream-3.16-rc3. I'll keep it on this kernel for at least the next few days (probably longer) and will update this bug if anything changes. ** Tags added: kernel-fixed-upstream kernel-fixed-upstream-3.16-rc3 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1332409 Title: [Supermicro X9DR3-F] Virtual machines hang in kernel 3.13 Status in “linux” package in Ubuntu: Incomplete Bug description: Multi-cpu systems are experiencing guest kernels hanging/crashing (both windows & linux guests) in kernel 3.13. (Windows guests are getting bluescreens, linux guests just seem to be locking up). Downgrading to 3.12 eliminates the problem. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-lowlatency 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-lowlatency 3.13.11.2 Uname: Linux 3.13.0-29-lowlatency x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jun 18 16:43 seq crw-rw---- 1 root audio 116, 33 Jun 18 16:43 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri Jun 20 01:07:59 2014 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0557:2221 ATEN International Co., Ltd Winbond Hermon Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Supermicro X9DR3-F PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-lowlatency root=UUID=0d5098de-e0c2-4884-bf6a-5d68f9ad5266 ro console=tty1 console=ttyS1,115200n8 nomodeset rootdelay=15 text nomdmonddf nomdmonisw RelatedPackageVersions: linux-restricted-modules-3.13.0-29-lowlatency N/A linux-backports-modules-3.13.0-29-lowlatency N/A linux-firmware 1.127.2 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-19 (61 days ago) dmi.bios.date: 07/31/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.0a dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DR3-F dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.0a:bd07/31/2013:svnSupermicro:pnX9DR3-F:pvr0123456789:rvnSupermicro:rnX9DR3-F:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.name: X9DR3-F dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1332409/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp