What are these errors ?

[freebsd at top-consulting.net]

I am running 9.0 BETA2 and I see these errors in /var/log/messages:


Sep 16 18:07:51 store2 kernel: GEOM: da1: corrupt or invalid GPT detected.
Sep 16 18:07:51 store2 kernel: GEOM: da1: GPT rejected -- may not be  
recoverable.
Sep 16 19:13:25 store2 kernel: lock order reversal:
Sep 16 19:13:25 store2 kernel: 1st 0xffffff80f2692c98 bufwait  
(bufwait) @ /usr/src/sys/kern/vfs_bio.c:2658
Sep 16 19:13:25 store2 kernel: 2nd 0xfffffe00058a2200 dirhash  
(dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:284
Sep 16 19:13:25 store2 kernel: KDB: stack backtrace:
Sep 16 19:13:25 store2 kernel: db_trace_self_wrapper() at  
db_trace_self_wrapper+0x2a
Sep 16 19:13:25 store2 kernel: kdb_backtrace() at kdb_backtrace+0x37
Sep 16 19:13:25 store2 kernel: _witness_debugger() at _witness_debugger+0x2e
Sep 16 19:13:25 store2 kernel: witness_checkorder() at  
witness_checkorder+0x807
Sep 16 19:13:25 store2 kernel: _sx_xlock() at _sx_xlock+0x55
Sep 16 19:13:25 store2 kernel: ufsdirhash_acquire() at ufsdirhash_acquire+0x33
Sep 16 19:13:25 store2 kernel: ufsdirhash_remove() at ufsdirhash_remove+0x16
Sep 16 19:13:25 store2 kernel: ufs_dirremove() at ufs_dirremove+0x1c3
Sep 16 19:13:25 store2 kernel: ufs_rename() at ufs_rename+0x101c
Sep 16 19:13:25 store2 kernel: VOP_RENAME_APV() at VOP_RENAME_APV+0x9b
Sep 16 19:13:25 store2 kernel: kern_renameat() at kern_renameat+0x4b4
Sep 16 19:13:25 store2 kernel: syscallenter() at syscallenter+0x1aa
Sep 16 19:13:25 store2 kernel: syscall() at syscall+0x4c
Sep 16 19:13:25 store2 kernel: Xfast_syscall() at Xfast_syscall+0xdd
Sep 16 19:13:25 store2 kernel: --- syscall (128, FreeBSD ELF64,  
rename), rip = 0x8008fee9c, rsp = 0x7fffffffa008,
rbp = 0x7fffffffa4f0 ---
Sep 16 19:13:27 store2 kernel: lock order reversal:
Sep 16 19:13:27 store2 kernel: 1st 0xfffffe006c8b9638 ufs (ufs) @  
/usr/src/sys/ufs/ufs/ufs_vnops.c:1175
Sep 16 19:13:27 store2 kernel: 2nd 0xffffff80f2692c98 bufwait  
(bufwait) @ /usr/src/sys/ufs/ffs/ffs_vnops.c:260
Sep 16 19:13:27 store2 kernel: 3rd 0xfffffe006ca38bd8 ufs (ufs) @  
/usr/src/sys/kern/vfs_subr.c:2134
Sep 16 19:13:28 store2 kernel: KDB: stack backtrace:
Sep 16 19:13:28 store2 kernel: db_trace_self_wrapper() at  
db_trace_self_wrapper+0x2a
Sep 16 19:13:28 store2 kernel: kdb_backtrace() at kdb_backtrace+0x37
Sep 16 19:13:28 store2 kernel: _witness_debugger() at _witness_debugger+0x2e
Sep 16 19:13:28 store2 kernel: witness_checkorder() at  
witness_checkorder+0x807
Sep 16 19:13:28 store2 kernel: __lockmgr_args() at __lockmgr_args+0xdc6
Sep 16 19:13:28 store2 kernel: ffs_lock() at ffs_lock+0x8c
Sep 16 19:13:28 store2 kernel: VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
Sep 16 19:13:28 store2 kernel: _vn_lock() at _vn_lock+0x47
Sep 16 19:13:28 store2 kernel: vget() at vget+0x7b
Sep 16 19:13:28 store2 kernel: vfs_hash_get() at vfs_hash_get+0xd5
Sep 16 19:13:28 store2 kernel: ffs_vgetf() at ffs_vgetf+0x48
Sep 16 19:13:28 store2 kernel: softdep_sync_buf() at softdep_sync_buf+0x547
Sep 16 19:13:28 store2 kernel: ffs_sy
Sep 16 19:13:28 store2 kernel: ncvnode
Sep 16 19:13:28 store2 kernel: () at
Sep 16 19:13:28 store2 kernel:
Sep 16 19:13:28 store2 kernel: ffs_syncvnode+0x2b3
Sep 16 19:13:28 store2 kernel: ffs_fsync() at ffs_fsync+0x43
Sep 16 19:13:28 store2 kernel: ufs_rename() at ufs_rename+0xc7f
Sep 16 19:13:28 store2 kernel: VOP_RENAME_APV() at VOP_RENAME_APV+0x9b
Sep 16 19:13:28 store2 kernel: kern_renameat() at kern_renameat+0x4b4
Sep 16 19:13:28 store2 kernel: syscallenter() at syscallenter+0x1aa
Sep 16 19:13:28 store2 kernel: syscall() at syscall+0x4c
Sep 16 19:13:28 store2 kernel: Xfast_syscall() at Xfast_syscall+0xdd
Sep 16 19:13:28 store2 kernel: --- syscall (128, FreeBSD ELF64,  
rename), rip = 0x8008fee9c, rsp = 0x7fffffffa008,
rbp = 0x7fffffffa4f0 ---




Sep 18 12:30:51 store2 kernel: lock order reversal:
Sep 18 12:30:51 store2 kernel: 1st 0xfffffe00054cc278 syncer (syncer)  
@ /usr/src/sys/kern/vfs_subr.c:1734
Sep 18 12:30:51 store2 kernel: 2nd 0xfffffe011ebea638 ufs (ufs) @  
/usr/src/sys/kern/vfs_subr.c:2134
Sep 18 12:30:51 store2 kernel: KDB: stack backtrace:
Sep 18 12:30:51 store2 kernel: db_trace_self_wrapper() at  
db_trace_self_wrapper+0x2a
Sep 18 12:30:51 store2 kernel: kdb_backtrace() at kdb_backtrace+0x37
Sep 18 12:30:51 store2 kernel: _witness_debugger() at _witness_debugger+0x2e
Sep 18 12:30:51 store2 kernel: witness_checkorder() at  
witness_checkorder+0x807
Sep 18 12:30:51 store2 kernel: __lockmgr_args() at __lockmgr_args+0xdc6
Sep 18 12:30:51 store2 kernel: ffs_lock() at ffs_lock+0x8c
Sep 18 12:30:51 store2 kernel: VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
Sep 18 12:30:52 store2 kernel: _vn_lock() at _vn_lock+0x47
Sep 18 12:30:52 store2 kernel: vget() at vget+0x7b
Sep 18 12:30:52 store2 kernel: vfs_msync() at vfs_msync+0xa5
Sep 18 12:30:52 store2 kernel: sync_fsync() at sync_fsync+0x12a
Sep 18 12:30:52 store2 kernel: sync_vnode() at sync_vnode+0x157
Sep 18 12:30:52 store2 kernel: sched_sync() at sched_sync+0x1d1
Sep 18 12:30:52 store2 kernel: fork_exit() at fork_exit+0x135
Sep 18 12:30:52 store2 kernel: fork_trampoline() at fork_trampoline+0xe
Sep 18 12:30:52 store2 kernel: --- trap 0, rip
Sep 18 12:30:52 store2 kernel: =
Sep 18 12:30:52 store2 kernel: 0,
Sep 18 12:30:52 store2 kernel: r
Sep 18 12:30:52 store2 kernel: sp
Sep 18 12:30:52 store2 kernel: =
Sep 18 12:30:52 store2 kernel: 0x
Sep 18 12:30:52 store2 kernel: ff
Sep 18 12:30:52 store2 last message repeated 2 times
Sep 18 12:30:52 store2 kernel: 8
Sep 18 12:30:52 store2 kernel: 116
Sep 18 12:30:52 store2 kernel: e1
Sep 18 12:30:52 store2 kernel: fd0
Sep 18 12:30:52 store2 kernel: 0,
Sep 18 12:30:52 store2 kernel: r
Sep 18 12:30:52 store2 kernel: bp
Sep 18 12:30:52 store2 kernel: =
Sep 18 12:30:52 store2 kernel: 0
Sep 18 12:30:52 store2 kernel: --
Sep 18 12:30:52 store2 kernel: -


It seems to mention da1 but my mounted da1 partition appears just  
fine. I copy files to/from it.

gpart show da1
=>         34  15519973310  da1  GPT  (7.2T)
            34         2014       - free -  (1M)
          2048  15519969280    1  freebsd-ufs  (7.2T)
   15519971328         2016       - free -  (1M)


Are these errors serious ?