Date: Fri, 12 Oct 2012 08:18:05 GMT From: Robert Schulze <rs@bytecamp.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/172630: LOR zfs/zfs_vfsops.c kern/kern_descrip.c Message-ID: <201210120818.q9C8I54f035281@red.freebsd.org> Resent-Message-ID: <201210120820.q9C8K0lR078673@freefall.freebsd.org>
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>Number: 172630 >Category: kern >Synopsis: LOR zfs/zfs_vfsops.c kern/kern_descrip.c >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 Oct 12 08:20:00 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Robert Schulze >Release: 8.3-STABLE >Organization: >Environment: FreeBSD hostname 8.3-STABLE FreeBSD 8.3-STABLE #19: Fri Sep 28 12:07:17 CEST 2012 root@hostname:/usr/obj/usr/src/sys/BAK amd64 >Description: Just want to report that LOR: kernel: lock order reversal: kernel: 1st 0xffffff00892dca58 zfs (zfs) @ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1700 kernel: 2nd 0xffffffff809651c0 allproc (allproc) @ /usr/src/sys/kern/kern_descrip.c:2547 kernel: KDB: stack backtrace: kernel: #0 0xffffffff80476c96 at kdb_backtrace+0x66 kernel: #1 0xffffffff80485f95 at _witness_debugger+0x65 kernel: #2 0xffffffff80487024 at witness_checkorder+0x694 kernel: #3 0xffffffff8044f8fc at _sx_slock+0x4c kernel: #4 0xffffffff804156ce at mountcheckdirs+0x3e kernel: #5 0xffffffff804c926b at dounmount+0x41b kernel: #6 0xffffffff80eaac92 at zfs_unmount_snap+0xb2 kernel: #7 0xffffffff80eaadc5 at zfs_ioc_destroy_snaps_nvl+0xd5 kernel: #8 0xffffffff80eaaa96 at zfsdev_ioctl+0xe6 kernel: #9 0xffffffff803e584a at devfs_ioctl_f+0x7a kernel: #10 0xffffffff8048878e at kern_ioctl+0xfe kernel: #11 0xffffffff8048899f at ioctl+0xef kernel: #12 0xffffffff806711c9 at amd64_syscall+0x119 kernel: #13 0xffffffff8065abdc at Xfast_syscall+0xfc >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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