host is diskless, and mount /etc via unionfs to a mfs, and onboot: lock order reversal: 1st 0xffffff00029577f8 nfs (nfs) @ /home/src/head/sys/modules/unionfs/../../fs/unionfs/union_vnops.c:1821 2nd 0xffffff0002956ba8 ufs (ufs) @ /home/src/head/sys/modules/unionfs/../../fs/unionfs/union_vnops.c:1843 3rd 0xffffff0002d79098 nfs (nfs) @ /home/src/head/sys/nfsclient/nfs_node.c:161 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e __lockmgr_args() at __lockmgr_args+0xcf3 nfs_nget() at nfs_nget+0x1c9 nfs_lookup() at nfs_lookup+0x4fa VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x95 unionfs_lookup() at unionfs_lookup+0x586 vfs_cache_lookup() at vfs_cache_lookup+0xf0 VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x95 lookup() at lookup+0x37d namei() at namei+0x479 kern_statat_vnhook() at kern_statat_vnhook+0x8f kern_statat() at kern_statat+0x15 stat() at stat+0x2a syscall() at syscall+0x1af Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (188, FreeBSD ELF64, stat), rip = 0x80072f41c, rsp = 0x7fffffffebb8, rbp = 0x8009173c0 --- lock order reversal: 1st 0xffffff0002d1fd80 unionfs (unionfs) @ /home/src/head/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356 2nd 0xffffff0002d79098 nfs (nfs) @ /home/src/head/sys/kern/vfs_subr.c:2188 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e __lockmgr_args() at __lockmgr_args+0xcf3 vop_stdlock() at vop_stdlock+0x39 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vrele() at vrele+0x131 unionfs_noderem() at unionfs_noderem+0x1a4 unionfs_reclaim() at unionfs_reclaim+0x11 vgonel() at vgonel+0x105 vrecycle() at vrecycle+0x4c unionfs_inactive() at unionfs_inactive+0x20 vinactive() at vinactive+0x72 vput() at vput+0x230 kern_statat_vnhook() at kern_statat_vnhook+0xfa kern_statat() at kern_statat+0x15 stat() at stat+0x2a syscall() at syscall+0x1af Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (188, FreeBSD ELF64, stat), rip = 0x80072f41c, rsp = 0x7fffffffebb8, rbp = 0x8009173c0 --- lock order reversal: 1st 0xffffff0002d1fd80 unionfs (unionfs) @ /home/src/head/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356 2nd 0xffffff0002d1fba8 ufs (ufs) @ /home/src/head/sys/kern/vfs_subr.c:2188 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e __lockmgr_args() at __lockmgr_args+0xcf3 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vrele() at vrele+0x131 unionfs_noderem() at unionfs_noderem+0x1c4 unionfs_reclaim() at unionfs_reclaim+0x11 vgonel() at vgonel+0x105 vrecycle() at vrecycle+0x4c unionfs_inactive() at unionfs_inactive+0x20 vinactive() at vinactive+0x72 vput() at vput+0x230 kern_statat_vnhook() at kern_statat_vnhook+0xfa kern_statat() at kern_statat+0x15 stat() at stat+0x2a syscall() at syscall+0x1af Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (188, FreeBSD ELF64, stat), rip = 0x80072f41c, rsp = 0x7fffffffebb8, rbp = 0x8009173c0 --- How-To-Repeat: boot diskless host, in /etc/rc.initdiskless add: if [ -e /conf/union ]; then kldload unionfs mount_md 4096 /.etc mount_unionfs -o transparent /.etc /etc fi fi
Responsible Changed From-To: freebsd-bugs->daichi Over to maintainer.
State Changed From-To: open->open commit bit has been taken in for safekeeping.
Responsible Changed From-To: daichi->freebsd-fs
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped