apport information ** Tags added: apport-collected xenial
** Description changed: When doing "zfs create -V" and "zfs rename" operations on the same zpool in parallel, there is a high chance for a deadlock leading to a complete hang of the zpool in question (i.e., all further zfs operations hang indefinitely). Attached you find a simple perl script that should trigger the bug (the pool variable needs to be set to your pool name), if run in two shells at the same time: $ for i in `seq 1 100`; do sudo ./zfsrenamebug.pl "A$i"; done $ for i in `seq 1 100`; do sudo ./zfsrenamebug.pl "B$i"; done - Reported upstream in https://github.com/zfsonlinux/zfs/issues/4404 and - apparently fixed with the linked commits. + Reported upstream in https://github.com/zfsonlinux/zfs/issues/4404 and apparently fixed with the linked commits. + --- + ApportVersion: 2.20-0ubuntu3 + Architecture: amd64 + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + CurrentDesktop: Unity + DistroRelease: Ubuntu 16.04 + HibernationDevice: RESUME=UUID=41b79831-ff2c-4d62-8d09-0fd00a3fafad + InstallationDate: Installed on 2016-03-18 (4 days ago) + InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307) + IwConfig: + ens18 no wireless extensions. + + lo no wireless extensions. + Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub + MachineType: QEMU Standard PC (i440FX + PIIX, 1996) + NonfreeKernelModules: zfs zunicode zcommon znvpair zavl + Package: zfs-linux + ProcFB: 0 qxldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=ff5bf1a3-8ced-46a8-9e2e-e3e7d0e522c0 ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 + RelatedPackageVersions: + linux-restricted-modules-4.4.0-15-generic N/A + linux-backports-modules-4.4.0-15-generic N/A + linux-firmware 1.157 + RfKill: + + Tags: xenial + Uname: Linux 4.4.0-15-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 04/01/2014 + dmi.bios.vendor: SeaBIOS + dmi.bios.version: rel-1.8.2-0-g33fbe13 by qemu-project.org + dmi.chassis.type: 1 + dmi.chassis.vendor: QEMU + dmi.chassis.version: pc-i440fx-2.5 + dmi.modalias: dmi:bvnSeaBIOS:bvrrel-1.8.2-0-g33fbe13byqemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.5:cvnQEMU:ct1:cvrpc-i440fx-2.5: + dmi.product.name: Standard PC (i440FX + PIIX, 1996) + dmi.product.version: pc-i440fx-2.5 + dmi.sys.vendor: QEMU ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1560869/+attachment/4608353/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560869 Title: Concurrent zfs create and rename operations can lock a zpool completely To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1560869/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
