Date: Thu, 10 Dec 2020 14:34:33 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 251731] LOR between zfs and devfs Message-ID: <bug-251731-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251731 Bug ID: 251731 Summary: LOR between zfs and devfs Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: juraj@lutter.sk Hi, there is this LOR happening in recent -CURRENT (with GENERIC kernel): lock order reversal: 1st 0xfffff82d727e1258 zfs (zfs, lockmgr) @ /usr/src-cur/sys/kern/vfs_mount.c:1016 2nd 0xfffff82cb9a6b628 devfs (devfs, lockmgr) @ /usr/src-cur/sys/kern/vfs_mount.c:1027 lock order devfs -> zfs established at: #0 0xffffffff80c510ed at witness_checkorder+0x46d #1 0xffffffff80bb43f5 at lockmgr_xlock+0x55 #2 0xffffffff80cdb604 at _vn_lock+0x54 #3 0xffffffff80cbadd8 at vfs_domount+0xe68 #4 0xffffffff80cb95a2 at vfs_donmount+0x872 #5 0xffffffff80cbd8c7 at kernel_mount+0x57 #6 0xffffffff80cc01f1 at parse_mount+0x4a1 #7 0xffffffff80cbe6f9 at vfs_mountroot+0x589 #8 0xffffffff80b73eff at start_init+0x1f #9 0xffffffff80b9dbe0 at fork_exit+0x80 #10 0xffffffff8100968e at fork_trampoline+0xe lock order zfs -> devfs attempted at: #0 0xffffffff80c51a4c at witness_checkorder+0xdcc #1 0xffffffff80bb43f5 at lockmgr_xlock+0x55 #2 0xffffffff80cdb604 at _vn_lock+0x54 #3 0xffffffff80cbadd8 at vfs_domount+0xe68 #4 0xffffffff80cb95a2 at vfs_donmount+0x872 #5 0xffffffff80cb8cf9 at sys_nmount+0x69 #6 0xffffffff81035d1b at amd64_syscall+0x12b #7 0xffffffff81008f5e at fast_syscall_common+0xf8 Is this a known issue? Thanks. --=20 You are receiving this mail because: You are the assignee for the bug.=
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