Date: Mon, 04 Mar 2019 21:53:47 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 236220] ZFS vnode deadlock on zfs_mknode Message-ID: <bug-236220-227-WRJ7j0WrrR@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-236220-227@https.bugs.freebsd.org/bugzilla/> References: <bug-236220-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236220 --- Comment #6 from ncrogers@gmail.com --- (In reply to Andriy Gapon from comment #5) I thought I had that in Comment #2. Here it is again. (kgdb) tid 100527 (kgdb) bt #0 sched_switch (td=0xfffff8026af9d580, newtd=0xfffff80003551000, flags=<optimized out>) at /usr/src/sys/kern/sched_ule.c:2112 #1 0xffffffff80d0e0a1 in mi_switch (flags=<optimized out>, newtd=0x0) at /usr/src/sys/kern/kern_synch.c:439 #2 0xffffffff80d5c80c in sleepq_wait (wchan=<unavailable>, pri=<unavailable>) at /usr/src/sys/kern/subr_sleepqueue.c:692 #3 0xffffffff80cd9105 in sleeplk (lk=0xfffff802f256c248, flags=<optimized out>, ilk=<optimized out>, wmesg=<optimized out>, pri=<optimized out>, timo=51, queue=0) at /usr/src/sys/kern/kern_lock.c:300 #4 0xffffffff80cd819c in lockmgr_xlock_hard (lk=0xfffff802f256c248, flags=525312, ilk=0xfffff802f256c278, file=<optimized out>, line=<optimized out>, lwa=<optimized out>) at /usr/src/sys/kern/kern_lock.c:822 #5 0xffffffff813acc5e in VOP_LOCK1_APV (vop=<optimized out>, a=0xfffffe008e36b280) at vnode_if.c:2087 #6 0xffffffff80de2820 in VOP_LOCK1 (vp=0xfffff802f256c1e0, flags=525312, file=0xffffffff813c47d0 "/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c", line=730) at ./vnode_if.h:859 #7 _vn_lock (vp=0xfffff802f256c1e0, flags=525312, file=0xffffffff813c47d0 "/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c", line=730) at /usr/src/sys/kern/vfs_vnops.c:1533 #8 0xffffffff804ae1f4 in zfs_znode_alloc (zfsvfs=<optimized out>, db=<optimized out>, blksz=0, obj_type=<optimized out>, hdl=<optimized out>) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:730 #9 0xffffffff804adc0d in zfs_mknode (dzp=0xfffff802f461f440, vap=0xfffffe008e36b6e0, tx=<optimized out>, cr=0xfffff8002b529b00, flag=<optimized out>, zpp=0xfffffe008e36b638, acl_ids=0xfffffe008e36b5f8) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:988 #10 0xffffffff804a4d32 in zfs_create (excl=0, mode=0, dvp=<optimized out>, name=<optimized out>, vap=<optimized out>, vpp=<optimized out>, cr=<optimized out>, td=<optimized out>) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:1883 #11 zfs_freebsd_create (ap=0xfffffe008e36b790) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:4996 #12 0xffffffff813aaa68 in VOP_CREATE_APV (vop=<optimized out>, a=0xfffffe008e36b790) at vnode_if.c:263 #13 0xffffffff80de20f9 in VOP_CREATE (dvp=<unavailable>, vpp=0xfffffe008e36b888, cnp=<optimized out>, vap=0x18000000001) at ./vnode_if.h:109 #14 vn_open_cred (ndp=0xfffffe008e36b828, flagp=0xfffffe008e36b954, cmode=<optimized out>, vn_open_flags=<optimized out>, cred=0xfffff8002b529b00, fp=0xfffff8026d933d70) at /usr/src/sys/kern/vfs_vnops.c:243 #15 0xffffffff80dda74c in kern_openat (td=0xfffff8026af9d580, fd=-100, path=0x7fffffffc630 <error: Cannot access memory at address 0x7fffffffc630>, pathseg=UIO_USERSPACE, flags=1538, mode=<optimized out>) at /usr/src/sys/kern/vfs_syscalls.c:1082 #16 0xffffffff81222449 in syscallenter (td=<optimized out>) at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:135 #17 amd64_syscall (td=0xfffff8026af9d580, traced=0) at /usr/src/sys/amd64/amd64/trap.c:1076 #18 <signal handler called> #19 0x000000080138b4fa in ?? () Backtrace stopped: Cannot access memory at address 0x7fffffffc138 (kgdb) fr 7 #7 _vn_lock (vp=0xfffff802f256c1e0, flags=525312, file=0xffffffff813c47d0 "/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c", line=730) at /usr/src/sys/kern/vfs_vnops.c:1533 warning: Source file is more recent than executable. 1533 error = VOP_LOCK1(vp, flags, file, line); (kgdb) print *vp $1 = {v_tag = 0xffffffff8144af45 "zfs", v_op = 0xffffffff81c64fd0 <zfs_vnodeops>, v_data = 0xfffff802608c3440, v_mount = 0x0, v_nmntvnodes = {tqe_next = 0xfffff8037a047000, tqe_prev = 0xfffff802f23feb60}, {v_mountedhere = 0x0, v_unpcb = 0x0, v_rdev = 0x0, v_fifoinfo = 0x0}, v_hashlist = {le_next = 0x0, le_prev = 0x0}, v_cache_src = { lh_first = 0x0}, v_cache_dst = {tqh_first = 0x0, tqh_last = 0xfffff802f256c230}, v_cache_dd = 0x0, v_lock = {lock_object = {lo_name = 0xffffffff8144af45 "zfs", lo_flags = 117112840, lo_data = 0, lo_witness = 0x0}, lk_lock = 18446744073709551605, lk_exslpfail = 0, lk_timo = 51, lk_pri = 96}, v_interlock = {lock_object = { lo_name = 0xffffffff814e4508 "vnode interlock", lo_flags = 16973824, lo_data = 0, lo_witness = 0x0}, mtx_lock = 0}, v_vnlock = 0xfffff802f256c248, v_actfreelist = { tqe_next = 0xfffff8037a047000, tqe_prev = 0xfffff80011333a38}, v_bufobj = {bo_lock = {lock_object = {lo_name = 0xffffffff814a9e5f "bufobj interlock", lo_flags = 86179840, lo_data = 0, lo_witness = 0x0}, rw_lock = 1}, bo_ops = 0xffffffff81d38600 <buf_ops_bio>, bo_object = 0x0, bo_synclist = {le_next = 0x0, le_prev = 0x0}, bo_private = 0xfffff802f256c1e0, bo_clean = {bv_hd = {tqh_first = 0x0, tqh_last = 0xfffff802f256c2f8}, bv_root = {pt_root = 0}, bv_cnt = 0}, bo_dirty = {bv_hd = {tqh_first = 0x0, tqh_last = 0xfffff802f256c318}, bv_root = {pt_root = 0}, bv_cnt = 0}, bo_numoutput = 0, bo_flag = 0, bo_domain = 1, bo_bsize = 16384}, v_pollinfo = 0x0, v_label = 0x0, v_lockf = 0x0, v_rl = {rl_waiters = {tqh_first = 0x0, tqh_last = 0xfffff802f256c368}, rl_currdep = 0x0}, v_cstart = 0, v_lasta = 0, v_lastw = 0, v_clen = 0, v_holdcnt = 1, v_usecount = 1, v_iflag = 0, v_vflag = 0, v_mflag = 0, v_writecount = 0, v_hash = 49436353, v_type = VREG} (kgdb) -- You are receiving this mail because: You are the assignee for the bug.
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