Public bug reported: Binary package hint: qemu-kvm
1) # lsb_release -rd Description: Ubuntu 10.04 LTS Release: 10.04 2) # apt-cache policy qemu-kvm qemu-kvm: Installed: 0.12.3+noroms-0ubuntu9 Candidate: 0.12.3+noroms-0ubuntu9 Version table: *** 0.12.3+noroms-0ubuntu9 0 500 http://70.84.184.243/ubuntu/ lucid/main Packages 100 /var/lib/dpkg/status 3) We expect that the aio threads that do not return should time out. 4) instead, KVM and virtualized guests become unresponsive when the guest run performance tests against the libaio engine. This is reproducable 100% by running fio with the libaio engine. In some cases, the test must be run multiple times. The more vCPUs a guest instance has, the more likely it is to crash quickly. In some cases, one guest instance can also cause performance problems and crashes for other guests on the same physical hardware. The only way to regain control of KVM is to reboot the server. This appears to be the same problem addressed by the KVM package in RHEL 5.5 (BZ#525114). ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: qemu-kvm 0.12.3+noroms-0ubuntu9 Uname: Linux 2.6.34-drclaw-iscsimod x86_64 Architecture: amd64 Date: Thu Jun 10 16:21:57 2010 KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD MachineType: Dell Inc. PowerEdge R710 ProcCmdLine: BOOT_IMAGE=vds-kernel-nfs initrd=iscsimod.lzma rw root=/dev/ram0 quiet BOOTIF=01-a4-ba-db-10-a5-d0 ProcEnviron: PATH=(custom, no user) SHELL=/bin/bash ProcModules: sch_htb 12262 - - Live 0xffffffffa0032000 iscsi_tcp 7928 - - Live 0xffffffffa002a000 libiscsi_tcp 11533 - - Live 0xffffffffa0021000 libiscsi 31730 - - Live 0xffffffffa0010000 scsi_transport_iscsi 25224 - - Live 0xffffffffa0000000 SourcePackage: qemu-kvm dmi.bios.date: 10/30/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.6 dmi.board.name: 0YDJK3 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.6:bd10/30/2009:svnDellInc.:pnPowerEdgeR710:pvr:rvnDellInc.:rn0YDJK3:rvrA02:cvnDellInc.:ct23:cvr: dmi.product.name: PowerEdge R710 dmi.sys.vendor: Dell Inc. ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug lucid -- KVM becomes unresponsive due to waiting for aio threads https://bugs.launchpad.net/bugs/592327 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs