[Bug 204764] Filesystem deadlock, process in vodead state
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Wed Apr 20 11:28:45 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204764
roel at qsp.nl changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |roel at qsp.nl
--- Comment #22 from roel at qsp.nl ---
And another +1. Deadlock occurs on a raidz1 pool with 4 1.2TB members. This
system is running on r294572. The issue started after approximately 59 days of
production use with an average load of about 150 io transactions per second.
The deadlock is on a directory, which is located on a +-600GB ZFS dataset and
contains 7 files and two subdirs, a few kb total.
procstat -kk for a stuck du process:
PID TID COMM TDNAME KSTACK
97300 101745 du - mi_switch+0xe1 sleepq_wait+0x3a
_sleep+0x287 vnode_create_vobject+0x100 zfs_freebsd_open+0xf5 VOP_OPEN_APV+0xa1
vn_open_vnode+0x234 vn_open_cred+0x36a kern_openat+0x26f amd64_syscall+0x40f
Xfast_syscall+0xfb
And here is an rsync that is stuck:
25689 101762 rsync-backup - mi_switch+0xe1 sleepq_wait+0x3a
_sleep+0x287 vnode_create_vobject+0x100 zfs_freebsd_open+0xf5 VOP_OPEN_APV+0xa1
vn_open_vnode+0x234 vn_open_cred+0x36a kern_openat+0x26f amd64_syscall+0x40f
Xfast_syscall+0xfb
This filesystem is exported through nfs. We have a few nfsd threads stuck as
well:
root at nfs01:/home/roel # procstat -kk 857
PID TID COMM TDNAME KSTACK
857 100485 nfsd nfsd: master mi_switch+0xe1
sleepq_catch_signals+0xab sleepq_timedwait_sig+0x10 _cv_timedwait_sig_sbt+0x18b
svc_run_internal+0x46d svc_run+0x182 nfsrvd_nfsd+0x242 nfssvc_nfsd+0x107
sys_nfssvc+0x9c amd64_syscall+0x40f Xfast_syscall+0xfb
857 100505 nfsd nfsd: service mi_switch+0xe1
sleepq_catch_signals+0xab sleepq_wait_sig+0xf _cv_wait_sig+0x16a
svc_run_internal+0x86e svc_thread_start+0xb fork_exit+0x9a fork_trampoline+0xe
... lots of similar threads, except for: ...
857 100541 nfsd nfsd: service mi_switch+0xe1 sleepq_wait+0x3a
_sleep+0x287 vnode_create_vobject+0x100 zfs_fhtovp+0x45b nfsvno_fhtovp+0x7c
nfsd_fhtovp+0xc8 nfsrvd_dorpc+0x12c nfssvc_program+0x54e svc_run_internal+0xd2b
svc_thread_start+0xb fork_exit+0x9a fork_trampoline+0xe
857 100588 nfsd nfsd: service mi_switch+0xe1 sleepq_wait+0x3a
_sleep+0x287 vnode_create_vobject+0x100 zfs_fhtovp+0x45b nfsvno_fhtovp+0x7c
nfsd_fhtovp+0xc8 nfsrvd_dorpc+0x12c nfssvc_program+0x54e svc_run_internal+0xd2b
svc_thread_start+0xb fork_exit+0x9a fork_trampoline+0xe
Some kgdb output for one of the stuck du threads:
[Switching to thread 555 (Thread 101720)]#0 sched_switch
(td=0xfffff8033a17e000, newtd=<value optimized out>, flags=<value optimized
out>) at /usr/src/sys/kern/sched_ule.c:1945
1945 cpuid = PCPU_GET(cpuid);
(kgdb) bt
#0 sched_switch (td=0xfffff8033a17e000, newtd=<value optimized out>,
flags=<value optimized out>) at /usr/src/sys/kern/sched_ule.c:1945
#1 0xffffffff80959ff1 in mi_switch (flags=260, newtd=0x0) at
/usr/src/sys/kern/kern_synch.c:491
#2 0xffffffff8099b31a in sleepq_wait (wchan=0x0, pri=0) at
/usr/src/sys/kern/subr_sleepqueue.c:617
#3 0xffffffff80959a17 in _sleep (ident=<value optimized out>, lock=<value
optimized out>, priority=<value optimized out>, wmesg=<value optimized out>,
sbt=<value optimized out>, pr=<value optimized out>,
flags=<value optimized out>) at /usr/src/sys/kern/kern_synch.c:255
#4 0xffffffff80bed620 in vnode_create_vobject (vp=0xfffff801d3e11b10,
isize=16, td=0xfffff8033a17e000) at /usr/src/sys/vm/vnode_pager.c:120
#5 0xffffffff81a7d5f5 in zfs_freebsd_open (ap=0xfffffe0466890658) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6076
#6 0xffffffff80e7e651 in VOP_OPEN_APV (vop=<value optimized out>, a=<value
optimized out>) at vnode_if.c:469
#7 0xffffffff80a05694 in vn_open_vnode (vp=0xfffff801d3e11b10, fmode=1179653,
cred=0xfffff803682bd400, td=0xfffff8033a17e000, fp=0xfffff80240d403c0) at
vnode_if.h:196
#8 0xffffffff80a0528a in vn_open_cred (ndp=0xfffffe0466890870,
flagp=0xfffffe046689094c, cmode=<value optimized out>, vn_open_flags=<value
optimized out>, cred=0x0, fp=0xfffff80240d403c0)
at /usr/src/sys/kern/vfs_vnops.c:268
#9 0xffffffff809fe44f in kern_openat (td=0xfffff8033a17e000, fd=-100,
path=0x801422d48 <Error reading address 0x801422d48: Bad address>,
pathseg=UIO_USERSPACE, flags=1179653, mode=<value optimized out>)
at /usr/src/sys/kern/vfs_syscalls.c:1093
#10 0xffffffff80d55aff in amd64_syscall (td=0xfffff8033a17e000, traced=0) at
subr_syscall.c:141
#11 0xffffffff80d3ad7b in Xfast_syscall () at
/usr/src/sys/amd64/amd64/exception.S:396
#12 0x0000000800b7570a in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) frame 4
#4 0xffffffff80bed620 in vnode_create_vobject (vp=0xfffff801d3e11b10,
isize=16, td=0xfffff8033a17e000) at /usr/src/sys/vm/vnode_pager.c:120
120 VM_OBJECT_SLEEP(object, object, PDROP | PVM, "vodead",
0);
(kgdb) print vp
$4 = (struct vnode *) 0xfffff801d3e11b10
(kgdb) print *vp
$5 = {v_tag = 0xffffffff81aecb3b "zfs", v_op = 0xffffffff81aff790, v_data =
0xfffff801a2d1ca10, v_mount = 0xfffff8011a46e660, v_nmntvnodes = {tqe_next =
0xfffff801a53281d8, tqe_prev = 0xfffff801a6b8e5a8}, v_un = {
vu_mount = 0x0, vu_socket = 0x0, vu_cdev = 0x0, vu_fifoinfo = 0x0},
v_hashlist = {le_next = 0x0, le_prev = 0x0}, v_cache_src = {lh_first =
0xfffff80019708850}, v_cache_dst = {tqh_first = 0xfffff80257063850,
tqh_last = 0xfffff80257063870}, v_cache_dd = 0xfffff80257063850, v_lock =
{lock_object = {lo_name = 0xffffffff81aecb3b "zfs", lo_flags = 117112832,
lo_data = 0, lo_witness = 0x0}, lk_lock = 1, lk_exslpfail = 0,
lk_timo = 51, lk_pri = 96}, v_interlock = {lock_object = {lo_name =
0xffffffff80fe1a6c "vnode interlock", lo_flags = 16973824, lo_data = 0,
lo_witness = 0x0}, mtx_lock = 4}, v_vnlock = 0xfffff801d3e11b78,
v_actfreelist = {tqe_next = 0xfffff801a6b8e588, tqe_prev =
0xfffff801a5328298}, v_bufobj = {bo_lock = {lock_object = {lo_name =
0xffffffff80fe1a7c "bufobj interlock", lo_flags = 86179840, lo_data = 0,
lo_witness = 0x0},
rw_lock = 1}, bo_ops = 0xffffffff814b3900, bo_object =
0xfffff801fd0ea100, bo_synclist = {le_next = 0x0, le_prev = 0x0}, bo_private =
0xfffff801d3e11b10, __bo_vnode = 0xfffff801d3e11b10, bo_clean = {bv_hd = {
tqh_first = 0x0, tqh_last = 0xfffff801d3e11c30}, bv_root = {pt_root =
0}, bv_cnt = 0}, bo_dirty = {bv_hd = {tqh_first = 0x0, tqh_last =
0xfffff801d3e11c50}, bv_root = {pt_root = 0}, bv_cnt = 0}, bo_numoutput = 0,
bo_flag = 0, bo_bsize = 131072}, v_pollinfo = 0x0, v_label = 0x0, v_lockf =
0x0, v_rl = {rl_waiters = {tqh_first = 0x0, tqh_last = 0xfffff801d3e11c98},
rl_currdep = 0x0}, v_cstart = 0, v_lasta = 0, v_lastw = 0,
v_clen = 0, v_holdcnt = 127, v_usecount = 126, v_iflag = 512, v_vflag = 0,
v_writecount = 0, v_hash = 7955980, v_type = VDIR}
(kgdb) print *td
$6 = {td_lock = 0xffffffff81619670, td_proc = 0xfffff8006233f4f0, td_plist =
{tqe_next = 0x0, tqe_prev = 0xfffff8006233f500}, td_runq = {tqe_next = 0x0,
tqe_prev = 0xffffffff815e3998}, td_slpq = {
tqe_next = 0xfffff803f7d36960, tqe_prev = 0xfffff802836ed030}, td_lockq =
{tqe_next = 0x0, tqe_prev = 0xfffffe03e44e7908}, td_hash = {le_next = 0x0,
le_prev = 0xfffffe000087aac0}, td_cpuset = 0xfffff800083cd3a8,
td_sel = 0xfffff80039695e00, td_sleepqueue = 0x0, td_turnstile =
0xfffff8015b0cacc0, td_rlqe = 0xfffff80117ffa4d8, td_umtxq =
0xfffff802d770a780, td_tid = 101720, td_sigqueue = {sq_signals = {__bits = {0,
0, 0, 0}},
sq_kill = {__bits = {0, 0, 0, 0}}, sq_list = {tqh_first = 0x0, tqh_last =
0xfffff8033a17e0b8}, sq_proc = 0xfffff8006233f4f0, sq_flags = 1},
td_lend_user_pri = 255 'ÿ', td_flags = 133124, td_inhibitors = 2,
td_pflags = 0, td_dupfd = -1, td_sqqueue = 0, td_wchan = 0xfffff801fd0ea100,
td_wmesg = 0xffffffff81006e8d "vodead", td_lastcpu = 1 '\001', td_oncpu = 255
'ÿ', td_owepreempt = 0 '\0', td_tsqueue = 0 '\0',
td_locks = 4348, td_rw_rlocks = 0, td_lk_slocks = 0, td_stopsched = 0,
td_blocked = 0x0, td_lockname = 0x0, td_contested = {lh_first = 0x0},
td_sleeplocks = 0x0, td_intr_nesting_level = 0, td_pinned = 0,
td_ucred = 0xfffff803682bd400, td_estcpu = 0, td_slptick = 444244584,
td_blktick = 0, td_swvoltick = 444244584, td_cow = 39, td_ru = {ru_utime =
{tv_sec = 0, tv_usec = 0}, ru_stime = {tv_sec = 0, tv_usec = 0},
ru_maxrss = 1656, ru_ixrss = 192, ru_idrss = 64, ru_isrss = 2048, ru_minflt
= 119, ru_majflt = 0, ru_nswap = 0, ru_inblock = 749, ru_oublock = 0, ru_msgsnd
= 0, ru_msgrcv = 0, ru_nsignals = 0, ru_nvcsw = 739,
ru_nivcsw = 2}, td_rux = {rux_runtime = 514120625, rux_uticks = 1,
rux_sticks = 15, rux_iticks = 0, rux_uu = 12852, rux_su = 192791, rux_tu =
205644}, td_incruntime = 0, td_runtime = 514120625, td_pticks = 0,
td_sticks = 0, td_iticks = 0, td_uticks = 0, td_intrval = 0, td_oldsigmask =
{__bits = {0, 0, 0, 0}}, td_generation = 741, td_sigstk = {ss_sp = 0x0, ss_size
= 0, ss_flags = 4}, td_xsig = 0, td_profil_addr = 0,
td_profil_ticks = 0, td_name = "du", '\0' <repeats 17 times>, td_fpop = 0x0,
td_dbgflags = 0, td_dbgksi = {ksi_link = {tqe_next = 0x0, tqe_prev = 0x0},
ksi_info = {si_signo = 0, si_errno = 0, si_code = 0, si_pid = 0,
si_uid = 0, si_status = 0, si_addr = 0x0, si_value = {sival_int = 0,
sival_ptr = 0x0, sigval_int = 0, sigval_ptr = 0x0}, _reason = {_fault =
{_trapno = 0}, _timer = {_timerid = 0, _overrun = 0}, _mesgq = {_mqd = 0},
_poll = {_band = 0}, __spare__ = {__spare1__ = 0, __spare2__ = {0, 0,
0, 0, 0, 0, 0}}}}, ksi_flags = 0, ksi_sigq = 0x0}, td_ng_outbound = 0, td_osd =
{osd_nslots = 0, osd_slots = 0x0, osd_next = {le_next = 0x0,
le_prev = 0x0}}, td_map_def_user = 0x0, td_dbg_forked = 0, td_vp_reserv =
0, td_no_sleeping = 0, td_dom_rr_idx = 0, td_sigmask = {__bits = {0, 0, 0, 0}},
td_rqindex = 31 '\037', td_base_pri = 120 'x',
td_priority = 120 'x', td_pri_class = 3 '\003', td_user_pri = 126 '~',
td_base_user_pri = 126 '~', td_pcb = 0xfffffe0466890b80, td_state =
TDS_INHIBITED, td_retval = {0, 1}, td_slpcallout = {c_links = {le = {
le_next = 0x0, le_prev = 0xfffffe00008d0a10}, sle = {sle_next = 0x0},
tqe = {tqe_next = 0x0, tqe_prev = 0xfffffe00008d0a10}}, c_time =
20354765951718809, c_precision = 268435437, c_arg = 0xfffff8033a17e000,
c_func = 0xffffffff8099b0d0 <sleepq_timeout>, c_lock = 0x0, c_flags = 0,
c_iflags = 272, c_cpu = 2}, td_frame = 0xfffffe0466890ac0, td_kstack_obj =
0xfffff803af9b7200, td_kstack = 18446741893586407424,
td_kstack_pages = 4, td_critnest = 1, td_md = {md_spinlock_count = 1,
md_saved_flags = 582, md_spurflt_addr = 0}, td_sched = 0xfffff8033a17e480,
td_ar = 0x0, td_lprof = {{lh_first = 0x0}, {lh_first = 0x0}},
td_dtrace = 0xfffff8037c56e700, td_errno = 0, td_vnet = 0x0, td_vnet_lpush =
0x0, td_intr_frame = 0x0, td_rfppwait_p = 0xfffff802656e09e0, td_ma = 0x0,
td_ma_cnt = 0, td_su = 0x0, td_dbg_sc_code = 0, td_dbg_sc_narg = 0,
td_emuldata = 0x0}
And another stuck du process:
(kgdb) thread 795
[Switching to thread 795 (Thread 101745)]#0 sched_switch
(td=0xfffff8006f2e84b0, newtd=<value optimized out>, flags=<value optimized
out>) at /usr/src/sys/kern/sched_ule.c:1945
1945 cpuid = PCPU_GET(cpuid);
(kgdb) bt
#0 sched_switch (td=0xfffff8006f2e84b0, newtd=<value optimized out>,
flags=<value optimized out>) at /usr/src/sys/kern/sched_ule.c:1945
#1 0xffffffff80959ff1 in mi_switch (flags=260, newtd=0x0) at
/usr/src/sys/kern/kern_synch.c:491
#2 0xffffffff8099b31a in sleepq_wait (wchan=0x0, pri=0) at
/usr/src/sys/kern/subr_sleepqueue.c:617
#3 0xffffffff80959a17 in _sleep (ident=<value optimized out>, lock=<value
optimized out>, priority=<value optimized out>, wmesg=<value optimized out>,
sbt=<value optimized out>, pr=<value optimized out>,
flags=<value optimized out>) at /usr/src/sys/kern/kern_synch.c:255
#4 0xffffffff80bed620 in vnode_create_vobject (vp=0xfffff801d3e11b10,
isize=16, td=0xfffff8006f2e84b0) at /usr/src/sys/vm/vnode_pager.c:120
#5 0xffffffff81a7d5f5 in zfs_freebsd_open (ap=0xfffffe046690d658) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6076
#6 0xffffffff80e7e651 in VOP_OPEN_APV (vop=<value optimized out>, a=<value
optimized out>) at vnode_if.c:469
#7 0xffffffff80a05694 in vn_open_vnode (vp=0xfffff801d3e11b10, fmode=1179653,
cred=0xfffff802f6e2f000, td=0xfffff8006f2e84b0, fp=0xfffff80104fcc5a0) at
vnode_if.h:196
#8 0xffffffff80a0528a in vn_open_cred (ndp=0xfffffe046690d870,
flagp=0xfffffe046690d94c, cmode=<value optimized out>, vn_open_flags=<value
optimized out>, cred=0x0, fp=0xfffff80104fcc5a0)
at /usr/src/sys/kern/vfs_vnops.c:268
#9 0xffffffff809fe44f in kern_openat (td=0xfffff8006f2e84b0, fd=-100,
path=0x801422d48 <Error reading address 0x801422d48: Bad address>,
pathseg=UIO_USERSPACE, flags=1179653, mode=<value optimized out>)
at /usr/src/sys/kern/vfs_syscalls.c:1093
#10 0xffffffff80d55aff in amd64_syscall (td=0xfffff8006f2e84b0, traced=0) at
subr_syscall.c:141
#11 0xffffffff80d3ad7b in Xfast_syscall () at
/usr/src/sys/amd64/amd64/exception.S:396
#12 0x0000000800b7570a in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) frame 4
#4 0xffffffff80bed620 in vnode_create_vobject (vp=0xfffff801d3e11b10,
isize=16, td=0xfffff8006f2e84b0) at /usr/src/sys/vm/vnode_pager.c:120
120 VM_OBJECT_SLEEP(object, object, PDROP | PVM, "vodead",
0);
(kgdb) p *vp
$7 = {v_tag = 0xffffffff81aecb3b "zfs", v_op = 0xffffffff81aff790, v_data =
0xfffff801a2d1ca10, v_mount = 0xfffff8011a46e660, v_nmntvnodes = {tqe_next =
0xfffff801a53281d8, tqe_prev = 0xfffff801a6b8e5a8}, v_un = {
vu_mount = 0x0, vu_socket = 0x0, vu_cdev = 0x0, vu_fifoinfo = 0x0},
v_hashlist = {le_next = 0x0, le_prev = 0x0}, v_cache_src = {lh_first =
0xfffff80019708850}, v_cache_dst = {tqh_first = 0xfffff80257063850,
tqh_last = 0xfffff80257063870}, v_cache_dd = 0xfffff80257063850, v_lock =
{lock_object = {lo_name = 0xffffffff81aecb3b "zfs", lo_flags = 117112832,
lo_data = 0, lo_witness = 0x0}, lk_lock = 1, lk_exslpfail = 0,
lk_timo = 51, lk_pri = 96}, v_interlock = {lock_object = {lo_name =
0xffffffff80fe1a6c "vnode interlock", lo_flags = 16973824, lo_data = 0,
lo_witness = 0x0}, mtx_lock = 4}, v_vnlock = 0xfffff801d3e11b78,
v_actfreelist = {tqe_next = 0xfffff801a6b8e588, tqe_prev =
0xfffff801a5328298}, v_bufobj = {bo_lock = {lock_object = {lo_name =
0xffffffff80fe1a7c "bufobj interlock", lo_flags = 86179840, lo_data = 0,
lo_witness = 0x0},
rw_lock = 1}, bo_ops = 0xffffffff814b3900, bo_object =
0xfffff801fd0ea100, bo_synclist = {le_next = 0x0, le_prev = 0x0}, bo_private =
0xfffff801d3e11b10, __bo_vnode = 0xfffff801d3e11b10, bo_clean = {bv_hd = {
tqh_first = 0x0, tqh_last = 0xfffff801d3e11c30}, bv_root = {pt_root =
0}, bv_cnt = 0}, bo_dirty = {bv_hd = {tqh_first = 0x0, tqh_last =
0xfffff801d3e11c50}, bv_root = {pt_root = 0}, bv_cnt = 0}, bo_numoutput = 0,
bo_flag = 0, bo_bsize = 131072}, v_pollinfo = 0x0, v_label = 0x0, v_lockf =
0x0, v_rl = {rl_waiters = {tqh_first = 0x0, tqh_last = 0xfffff801d3e11c98},
rl_currdep = 0x0}, v_cstart = 0, v_lasta = 0, v_lastw = 0,
v_clen = 0, v_holdcnt = 127, v_usecount = 126, v_iflag = 512, v_vflag = 0,
v_writecount = 0, v_hash = 7955980, v_type = VDIR}
(kgdb) p *td
$8 = {td_lock = 0xffffffff81619670, td_proc = 0xfffff80009eb59e0, td_plist =
{tqe_next = 0x0, tqe_prev = 0xfffff80009eb59f0}, td_runq = {tqe_next = 0x0,
tqe_prev = 0xffffffff815e87a8}, td_slpq = {
tqe_next = 0xfffff803cfb27960, tqe_prev = 0xfffff8006f2e8990}, td_lockq =
{tqe_next = 0x0, tqe_prev = 0xfffffe04662f90c8}, td_hash = {le_next = 0x0,
le_prev = 0xfffffe000087ab88}, td_cpuset = 0xfffff800083cd3a8,
td_sel = 0xfffff80290088500, td_sleepqueue = 0x0, td_turnstile =
0xfffff800b09c4840, td_rlqe = 0xfffff8015a73a910, td_umtxq =
0xfffff8012d91b280, td_tid = 101745, td_sigqueue = {sq_signals = {__bits = {0,
0, 0, 0}},
sq_kill = {__bits = {0, 0, 0, 0}}, sq_list = {tqh_first = 0x0, tqh_last =
0xfffff8006f2e8568}, sq_proc = 0xfffff80009eb59e0, sq_flags = 1},
td_lend_user_pri = 255 'ÿ', td_flags = 133124, td_inhibitors = 2,
td_pflags = 0, td_dupfd = -1, td_sqqueue = 0, td_wchan = 0xfffff801fd0ea100,
td_wmesg = 0xffffffff81006e8d "vodead", td_lastcpu = 7 '\a', td_oncpu = 255
'ÿ', td_owepreempt = 0 '\0', td_tsqueue = 0 '\0', td_locks = 3768,
td_rw_rlocks = 0, td_lk_slocks = 0, td_stopsched = 0, td_blocked = 0x0,
td_lockname = 0x0, td_contested = {lh_first = 0x0}, td_sleeplocks = 0x0,
td_intr_nesting_level = 0, td_pinned = 0, td_ucred = 0xfffff802f6e2f000,
td_estcpu = 0, td_slptick = 729400807, td_blktick = 0, td_swvoltick =
729400807, td_cow = 41, td_ru = {ru_utime = {tv_sec = 0, tv_usec = 0}, ru_stime
= {tv_sec = 0, tv_usec = 0}, ru_maxrss = 1696, ru_ixrss = 312,
ru_idrss = 104, ru_isrss = 3328, ru_minflt = 121, ru_majflt = 0, ru_nswap =
0, ru_inblock = 840, ru_oublock = 0, ru_msgsnd = 0, ru_msgrcv = 0, ru_nsignals
= 0, ru_nvcsw = 795, ru_nivcsw = 0}, td_rux = {
rux_runtime = 547891773, rux_uticks = 1, rux_sticks = 25, rux_iticks = 0,
rux_uu = 8428, rux_su = 210723, rux_tu = 219152}, td_incruntime = 0, td_runtime
= 547891773, td_pticks = 0, td_sticks = 0, td_iticks = 0,
td_uticks = 0, td_intrval = 0, td_oldsigmask = {__bits = {0, 0, 0, 0}},
td_generation = 795, td_sigstk = {ss_sp = 0x0, ss_size = 0, ss_flags = 4},
td_xsig = 0, td_profil_addr = 0, td_profil_ticks = 0,
td_name = "du", '\0' <repeats 17 times>, td_fpop = 0x0, td_dbgflags = 0,
td_dbgksi = {ksi_link = {tqe_next = 0x0, tqe_prev = 0x0}, ksi_info = {si_signo
= 0, si_errno = 0, si_code = 0, si_pid = 0, si_uid = 0,
si_status = 0, si_addr = 0x0, si_value = {sival_int = 0, sival_ptr = 0x0,
sigval_int = 0, sigval_ptr = 0x0}, _reason = {_fault = {_trapno = 0}, _timer =
{_timerid = 0, _overrun = 0}, _mesgq = {_mqd = 0}, _poll = {
_band = 0}, __spare__ = {__spare1__ = 0, __spare2__ = {0, 0, 0, 0, 0,
0, 0}}}}, ksi_flags = 0, ksi_sigq = 0x0}, td_ng_outbound = 0, td_osd =
{osd_nslots = 0, osd_slots = 0x0, osd_next = {le_next = 0x0,
le_prev = 0x0}}, td_map_def_user = 0x0, td_dbg_forked = 0, td_vp_reserv =
0, td_no_sleeping = 0, td_dom_rr_idx = 0, td_sigmask = {__bits = {0, 0, 0, 0}},
td_rqindex = 32 ' ', td_base_pri = 120 'x',
td_priority = 120 'x', td_pri_class = 3 '\003', td_user_pri = 130 '\202',
td_base_user_pri = 130 '\202', td_pcb = 0xfffffe046690db80, td_state =
TDS_INHIBITED, td_retval = {0, 1}, td_slpcallout = {c_links = {le = {
le_next = 0x0, le_prev = 0xfffffe0000ac29b0}, sle = {sle_next = 0x0},
tqe = {tqe_next = 0x0, tqe_prev = 0xfffffe0000ac29b0}}, c_time =
21579501454196634, c_precision = 268435437, c_arg = 0xfffff8006f2e84b0,
c_func = 0xffffffff8099b0d0 <sleepq_timeout>, c_lock = 0x0, c_flags = 0,
c_iflags = 272, c_cpu = 9}, td_frame = 0xfffffe046690dac0, td_kstack_obj =
0xfffff80198fc0e00, td_kstack = 18446741893586919424,
td_kstack_pages = 4, td_critnest = 1, td_md = {md_spinlock_count = 1,
md_saved_flags = 582, md_spurflt_addr = 0}, td_sched = 0xfffff8006f2e8930,
td_ar = 0x0, td_lprof = {{lh_first = 0x0}, {lh_first = 0x0}},
td_dtrace = 0xfffff802a4f1fc00, td_errno = 0, td_vnet = 0x0, td_vnet_lpush =
0x0, td_intr_frame = 0x0, td_rfppwait_p = 0xfffff803cb6dd4f0, td_ma = 0x0,
td_ma_cnt = 0, td_su = 0x0, td_dbg_sc_code = 0, td_dbg_sc_narg = 0,
td_emuldata = 0x0}
We are replicating this filesystem using incremental ZFS snapshots onto a
secondary host (using zrep). I can mount the replicated fs and read the file
there without issue.
I am currently compiling the latest -STABLE kernel and am scheduling a reboot
tonight.
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