Date: Mon, 3 Sep 2012 19:30:15 GMT From: Paavo Pokkinen <paavopok@ee.oulu.fi> To: freebsd-fs@FreeBSD.org Subject: Re: kern/161968: [zfs] [hang] renaming snapshot with -r including a zvol snapshot causes total ZFS freeze/lockup Message-ID: <201209031930.q83JUFCo056924@freefall.freebsd.org>
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The following reply was made to PR kern/161968; it has been noted by GNATS. From: Paavo Pokkinen <paavopok@ee.oulu.fi> To: bug-followup@FreeBSD.org, peter.maloney@brockmann-consult.de Cc: Subject: Re: kern/161968: [zfs] [hang] renaming snapshot with -r including a zvol snapshot causes total ZFS freeze/lockup Date: Mon, 03 Sep 2012 22:16:46 +0300 I can confirm this exists on 9.1-RC1. Simply issuing "zfs snapshot -r pakka@test" and after that "zfs rename -r pakka@test pakka@test2" hangs. The filesystem appears to continue work, but all zfs commands start hanging. Only reboot eventually helps. CTRL-T gives me: load: 0.00 cmd: zfs 1629 [tx->tx_sync_done_cv)] 412.62r 0.00u 0.00s 0% 2640k The hardware is pentium G630T with 8G ram on asus P8H77-I, four disks are WD RED 3TB. The zpool is raidz1, and I'm using it on plain disks without partitioning. I also have swap on zvol, apparently it also gets snapshotted. -- Paavo Pokkinen
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