[Bug 592327] Re: KVM becomes unresponsive due to waiting for aio threads
Marking this fix released as this is certainly fixed in 1.4.0 by now. If this is still reproducible in an older release, please leave a note here so we can mark it as such and look for the commit to fix it. ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/592327 Title: KVM becomes unresponsive due to waiting for aio threads To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/592327/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 592327] Re: KVM becomes unresponsive due to waiting for aio threads
Could you outline the specific command line you've used to start the fio benchmark in order to be able to easily reproduce your test environment? Could you also confirm the bug number in Redhat bugzilla as it seems that the bug is private. An upstream bug watch should then be added to this bug as outlined in https://wiki.ubuntu.com/Bugs/Watches. ** Changed in: qemu-kvm (Ubuntu) Status: New = Incomplete ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided = Low -- 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 Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 592327] Re: KVM becomes unresponsive due to waiting for aio threads
Exact instructions on how we are running the FIO tests: cut http://freshmeat.net/projects/fio/ - testing utility # yum install libaio-devel # wget http://freshmeat.net/urls/3aa21b8c106cab742bf1f20d60629e3f # tar xvfz fio-1.38.tar.gz # cd fio-1.38 # make # make install # cd .. # mkdir -p /tmp/fio-testing/data # vi four-threads-randio.fio [global] rw=randread size=256m directory=/tmp/fio-testing/data ioengine=libaio iodepth=4 invalidate=1 direct=1 [bgwriter] rw=randwrite iodepth=32 ;[queryA] ;iodepth=1 ;ioengine=mmap ;direct=0 ;thinktime=3 ;[queryB] ;iodepth=1 ;ioengine=mmap ;direct=0 ;thinktime=5 [bgupdater] rw=randrw iodepth=16 thinktime=40 size=32m # fio four-threads-randio.fio /cut The RedHat bug is indeed private, but checking http://store.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.5/html- single/Technical_Notes/ seems to indicate that this is related. An excerpt from the technical notes: cut KVM and virtualized guests would become unresponsive due to waiting infinitely for an aio threads to return. The updated packages resolve this issue by correctly timing out threads which do not return. (BZ#525114) /cut ** Bug watch added: Red Hat Bugzilla #525114 https://bugzilla.redhat.com/show_bug.cgi?id=525114 ** Also affects: qemu-kvm (CentOS) via https://bugzilla.redhat.com/show_bug.cgi?id=525114 Importance: Unknown Status: Unknown -- 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 Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 592327] Re: KVM becomes unresponsive due to waiting for aio threads
** Attachment added: BootDmesg.txt http://launchpadlibrarian.net/50080644/BootDmesg.txt ** Attachment added: CurrentDmesg.txt http://launchpadlibrarian.net/50080645/CurrentDmesg.txt ** Attachment added: Dependencies.txt http://launchpadlibrarian.net/50080646/Dependencies.txt ** Attachment added: Lspci.txt http://launchpadlibrarian.net/50080647/Lspci.txt ** Attachment added: Lsusb.txt http://launchpadlibrarian.net/50080648/Lsusb.txt ** Attachment added: ProcCpuinfo.txt http://launchpadlibrarian.net/50080649/ProcCpuinfo.txt ** Attachment added: ProcInterrupts.txt http://launchpadlibrarian.net/50080650/ProcInterrupts.txt ** Attachment added: RelatedPackageVersions.txt http://launchpadlibrarian.net/50080651/RelatedPackageVersions.txt ** Attachment added: UdevDb.txt http://launchpadlibrarian.net/50080652/UdevDb.txt ** Attachment added: UdevLog.txt http://launchpadlibrarian.net/50080653/UdevLog.txt -- 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 Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
