fixed in: v3.16-rc3 fixed in: v3.14.5 fixed in: v3.14.0 fixed in: v3.14.0rc1 broken in: v3.13.11.4 [the most recent v3.13 kernel] broken in v3.13.0 [the earliest v3.13 kernel, without going into the rc versions] fixed in: 3.12.22 [one of the more recent 3.12 kernels; was the most recent at the time I had tried it] [and broken in all other v3.13 versions I had tried]
At this point it looks like it's something that is special only to 3.13 (possibly some commit that was applied into 3.13 at an early time, never made it into 3.14 branch or was rewritten in 3.14...?) At this point, I'm not planning on testing more kernels since it seems like this is the pattern. Looking at http://kernelnewbies.org/Linux_3.13 - there were some major changes around both "Improved performance in NUMA systems" (this is a multi-processor system) and "Improved page table access scalability in hugepage workloads" (this does have 256gb of memory); one guess is that there could be something in those changes that was redesigned in 3.14 to work better(?) (though scanning through the top features in 3.14 nothing is jumping out to me...?) -- 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
