Date: Tue, 18 Feb 2014 20:34:31 +0100 From: Oliver Pinter <oliver.pntr@gmail.com> To: stable@freebsd.org Cc: bzeeb+freebsd+lor@zabbadoz.net, hunger@hunger.hu Subject: LOR: --- syscall (22, FreeBSD ELF64, sys_unmount), rip = 0x810246a5a, rsp = 0x7fffffff13f8, rbp = 0x7fffffff1560 --- Message-ID: <CAPjTQNGo8iPEoyYuvzg=dPPTxhX8N8NEgrG7LpiHEypGv0__eQ@mail.gmail.com>
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FreeBSD pandora-d 10.0-STABLE FreeBSD 10.0-STABLE #0 0c38d4b(stable/10): Tue Feb 18 19:13:35 CET 2014 root@pandora-d:/usr/obj/usr/src/sys/OP-DEBUG amd64 lock order reversal: 1st 0xfffff80019acc7c8 ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1237 2nd 0xfffff80019acd240 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2101 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0237810270 kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe0237810320 witness_checkorder() at witness_checkorder+0xd23/frame 0xfffffe02378103b0 __lockmgr_args() at __lockmgr_args+0x86c/frame 0xfffffe02378104e0 vop_stdlock() at vop_stdlock+0x3c/frame 0xfffffe0237810500 VOP_LOCK1_APV() at VOP_LOCK1_APV+0xd2/frame 0xfffffe0237810530 _vn_lock() at _vn_lock+0xab/frame 0xfffffe02378105a0 vget() at vget+0x70/frame 0xfffffe02378105f0 devfs_allocv() at devfs_allocv+0xfd/frame 0xfffffe0237810640 devfs_root() at devfs_root+0x43/frame 0xfffffe0237810670 vflush() at vflush+0x77/frame 0xfffffe02378107c0 devfs_unmount() at devfs_unmount+0x38/frame 0xfffffe02378107f0 dounmount() at dounmount+0x41f/frame 0xfffffe0237810870 sys_unmount() at sys_unmount+0x356/frame 0xfffffe02378109a0 amd64_syscall() at amd64_syscall+0x239/frame 0xfffffe0237810ab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0237810ab0 --- syscall (22, FreeBSD ELF64, sys_unmount), rip = 0x810246a5a, rsp = 0x7fffffff13f8, rbp = 0x7fffffff1560 ---
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