>Number: 180060 >Category: kern >Synopsis: ZFS kernel panic, solaris assert on dsl_prop_unregister >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jun 28 15:20:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: James TD Smith >Release: 9.1 >Organization: >Environment: FreeBSD masada.internal.mohorovi.cc 9.1-RELEASE-p4 FreeBSD 9.1-RELEASE-p4 #5 r251934: Tue Jun 18 15:41:34 BST 2013 r...@masada.internal.mohorovi.cc:/usr/obj/usr/src/sys/MASADA amd64 >Description: I've had two ZFS-related kernel panics over the last few days. Both have happened since I upgraded to 9.1-RELEASE-4 on the 18th. PR 154447 has similar backtraces but was on 8.2, I can't find any other references to a similar problem.
It's a mixed UFS/ZFS system, root is on UFS with a single 4-disk RAIDZ1 pool used for backups, a media library, poudriere and a few other jails. I replaced one of the disks in the pool earlier this week which had been failing for a while and have been tuning the ZFS settings based on this guide: http://icesquare.com/wordpress/how-to-improve-zfs-performance/ after I upgraded to 4Gb RAM. Jun 25 08:12:57 masada kernel: panic: solaris assert: dsl_prop_unregister(ds, "atime", atime_changed_cb, zfsvfs) == 0, file: /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c, line: 1199 Jun 25 08:12:57 masada kernel: cpuid = 0 Jun 25 08:12:57 masada kernel: KDB: stack backtrace: Jun 25 08:12:57 masada kernel: #0 0xffffffff80926c96 at kdb_backtrace+0x66 Jun 25 08:12:57 masada kernel: #1 0xffffffff808f0cae at panic+0x1ce Jun 25 08:12:57 masada kernel: #2 0xffffffff816b5647 at zfs_unregister_callbacks+0x1b7 Jun 25 08:12:57 masada kernel: #3 0xffffffff816b58c5 at zfsvfs_teardown+0x175 Jun 25 08:12:57 masada kernel: #4 0xffffffff816b5a2b at zfs_suspend_fs+0x1b Jun 25 08:12:57 masada kernel: #5 0xffffffff816aa229 at zfs_ioc_rollback+0xf9 Jun 25 08:12:57 masada kernel: #6 0xffffffff816abd46 at zfsdev_ioctl+0xe6 Jun 25 08:12:57 masada kernel: #7 0xffffffff807e077b at devfs_ioctl_f+0x7b Jun 25 08:12:57 masada kernel: #8 0xffffffff80938715 at kern_ioctl+0x115 Jun 25 08:12:57 masada kernel: #9 0xffffffff8093894d at sys_ioctl+0xfd Jun 25 08:12:57 masada kernel: #10 0xffffffff80be71d6 at amd64_syscall+0x546 Jun 28 04:08:02 masada kernel: panic: solaris assert: dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs) == 0, file: /usr/src/sys/modules/zfs/../.. /cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c, line: 1217 Jun 28 04:08:02 masada kernel: cpuid = 1 Jun 28 04:08:02 masada kernel: KDB: stack backtrace: Jun 28 04:08:02 masada kernel: #0 0xffffffff80926c96 at kdb_backtrace+0x66 Jun 28 04:08:02 masada kernel: #1 0xffffffff808f0cae at panic+0x1ce Jun 28 04:08:02 masada kernel: #2 0xffffffff816b570d at zfs_unregister_callbacks+0x27d Jun 28 04:08:02 masada kernel: #3 0xffffffff816b58c5 at zfsvfs_teardown+0x175 Jun 28 04:08:02 masada kernel: #4 0xffffffff816b5a2b at zfs_suspend_fs+0x1b Jun 28 04:08:02 masada kernel: #5 0xffffffff816aa229 at zfs_ioc_rollback+0xf9 Jun 28 04:08:02 masada kernel: #6 0xffffffff816abd46 at zfsdev_ioctl+0xe6 Jun 28 04:08:02 masada kernel: #7 0xffffffff807e077b at devfs_ioctl_f+0x7b Jun 28 04:08:02 masada kernel: #8 0xffffffff80938715 at kern_ioctl+0x115 Jun 28 04:08:02 masada kernel: #9 0xffffffff8093894d at sys_ioctl+0xfd Jun 28 04:08:02 masada kernel: #10 0xffffffff80be71d6 at amd64_syscall+0x546 >How-To-Repeat: I think it's more likely to happen under heavy IO load. This machine has rsnaphot backups scheduled to run every 4 hours, both of the crashes have occurred shortly after a backup began. It was also building packages with poudriere at the same time in both instances. >Fix: >Release-Note: >Audit-Trail: >Unformatted: _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
