[Bug 219935] Kernel panic in getnewvnode (possibly ZFS related)
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Fri Aug 25 09:31:30 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219935
--- Comment #2 from Raimo Niskanen <raimo+freebsd at erix.ericsson.se> ---
Nope. I do not have that core file - it has wrapped away long ago...
But I have a fresher one (I get a new about every 3 days):
sasquatch.otp.ericsson.se dumped core - see /var/crash/vmcore.4
Sat Aug 12 04:18:54 CEST 2017
FreeBSD sasquatch.otp.ericsson.se 10.3-RELEASE-p20 FreeBSD 10.3-RELEASE-p20 #0:
Wed Jul 12 03:13:07 UTC 2017
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
panic: page fault
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This GDB was configured as "amd64-marcel-freebsd"...
Unread portion of the kernel message buffer:
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 92526 (find)
trap number = 12
panic: page fault
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff8098e810 at kdb_backtrace+0x60
#1 0xffffffff809514e6 at vpanic+0x126
#2 0xffffffff809513b3 at panic+0x43
#3 0xffffffff80d5649b at trap_fatal+0x36b
#4 0xffffffff80d5679d at trap_pfault+0x2ed
#5 0xffffffff80d55e1a at trap+0x47a
#6 0xffffffff80d3bde2 at calltrap+0x8
#7 0xffffffff809f59b0 at getnewvnode+0x1c0
#8 0xffffffff81a51dda at zfs_znode_alloc+0x5a
#9 0xffffffff81a52ee2 at zfs_zget+0x2a2
#10 0xffffffff81a6b195 at zfs_dirent_lock+0x4a5
#11 0xffffffff81a6b43d at zfs_dirlook+0x17d
#12 0xffffffff81a817f0 at zfs_lookup+0x2e0
#13 0xffffffff81a81c9d at zfs_freebsd_lookup+0x6d
#14 0xffffffff80e80f01 at VOP_CACHEDLOOKUP_APV+0xa1
#15 0xffffffff809e4906 at vfs_cache_lookup+0xd6
#16 0xffffffff80e80df1 at VOP_LOOKUP_APV+0xa1
#17 0xffffffff809ed021 at lookup+0x5a1
Uptime: 3d1h11m26s
Dumping 1841 out of 12215 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Reading symbols from /mnt/boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/zfs.ko.symbols
Reading symbols from /mnt/boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/opensolaris.ko.symbols
Reading symbols from /mnt/boot/kernel/geom_mirror.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/geom_mirror.ko.symbols
Reading symbols from /mnt/boot/kernel/fdescfs.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/fdescfs.ko.symbols
Reading symbols from /mnt/boot/kernel/ums.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/ums.ko.symbols
Reading symbols from /mnt/boot/kernel/uhid.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/uhid.ko.symbols
Reading symbols from /mnt/boot/kernel/pf.ko.symbols...done.
Loaded symbols for /mnt/boot/kernel/pf.ko.symbols
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
219 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
#1 0xffffffff80951142 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:486
#2 0xffffffff80951525 in vpanic (fmt=<value optimized out>, ap=<value
optimized out>) at /usr/src/sys/kern/kern_shutdown.c:889
#3 0xffffffff809513b3 in panic (fmt=0x0) at
/usr/src/sys/kern/kern_shutdown.c:818
#4 0xffffffff80d5649b in trap_fatal (frame=<value optimized out>, eva=<value
optimized out>) at /usr/src/sys/amd64/amd64/trap.c:858
#5 0xffffffff80d5679d in trap_pfault (frame=0xfffffe034fc3fec0,
usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:681
#6 0xffffffff80d55e1a in trap (frame=0xfffffe034fc3fec0) at
/usr/src/sys/amd64/amd64/trap.c:447
#7 0xffffffff80d3bde2 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:236
#8 0xffffffff809f7755 in vholdl (vp=0xfffff801ed8b0ce8) at
/usr/src/sys/kern/vfs_subr.c:2468
#9 0xffffffff809f59b0 in getnewvnode (tag=0xffffffff81af1c7b "zfs",
mp=0xfffff8002cfae660, vops=0xffffffff81b048e0, vpp=0xfffffe034fc40170)
at /usr/src/sys/kern/vfs_subr.c:2163
#10 0xffffffff81a51dda in zfs_znode_alloc (zfsvfs=0xfffff8002ce75000,
db=0xfffff803145caaf8, blksz=1536, obj_type=DMU_OT_SA, hdl=0x0)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:630
#11 0xffffffff81a52ee2 in zfs_zget (zfsvfs=0xfffff8002ce75000, obj_num=143239,
zpp=0xfffffe034fc40328)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:1221
#12 0xffffffff81a6b195 in zfs_dirent_lock (dlpp=0xfffffe034fc40330, dzp=<value
optimized out>, name=<value optimized out>, zpp=0xfffffe034fc40328,
flag=<value optimized out>, direntflags=<value optimized out>,
realpnp=<value optimized out>)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:318
#13 0xffffffff81a6b43d in zfs_dirlook (dzp=0xfffff8003d7525c0,
name=0xfffffe034fc40410 "msg-12736-1.txt", vpp=0xfffffe034fc40858,
flags=<value optimized out>, deflg=0x0, rpnp=0x0) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:426
#14 0xffffffff81a817f0 in zfs_lookup () at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:1545
#15 0xffffffff81a81c9d in zfs_freebsd_lookup (ap=0xfffffe034fc40578)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6195
#16 0xffffffff80e80f01 in VOP_CACHEDLOOKUP_APV (vop=<value optimized out>,
a=<value optimized out>) at vnode_if.c:197
#17 0xffffffff809e4906 in vfs_cache_lookup (ap=<value optimized out>) at
vnode_if.h:80
#18 0xffffffff80e80df1 in VOP_LOOKUP_APV (vop=<value optimized out>, a=<value
optimized out>) at vnode_if.c:129
#19 0xffffffff809ed021 in lookup (ndp=0xfffffe034fc407f8) at vnode_if.h:54
#20 0xffffffff809ec784 in namei (ndp=0xfffffe034fc407f8) at
/usr/src/sys/kern/vfs_lookup.c:302
#21 0xffffffff80a00ece in kern_statat_vnhook (td=0xfffff801ed35c000,
flag=<value optimized out>, fd=-100,
path=0x801022308 <Address 0x801022308 out of bounds>,
pathseg=UIO_USERSPACE, sbp=0xfffffe034fc40910, hook=0xfffff801ed8b0da8)
at /usr/src/sys/kern/vfs_syscalls.c:2301
#22 0xffffffff80a00ddc in sys_fstatat (td=0xfffff801ed8b0ce8,
uap=0xfffffe034fc40a40) at /usr/src/sys/kern/vfs_syscalls.c:2281
#23 0xffffffff80d56e6f in amd64_syscall (td=0xfffff801ed35c000, traced=0) at
subr_syscall.c:141
#24 0xffffffff80d3c0cb in Xfast_syscall () at
/usr/src/sys/amd64/amd64/exception.S:396
#25 0x00000008008b6cba in ?? ()
Previous frame inner to this frame (corrupt stack?)
Current language: auto; currently minimal
(kgdb) fr 8
#8 0xffffffff809f7755 in vholdl (vp=0xfffff801ed8b0ce8) at
/usr/src/sys/kern/vfs_subr.c:2468
2468 TAILQ_INSERT_HEAD(&mp->mnt_activevnodelist, vp, v_actfreelist);
(kgdb) set print pretty
(kgdb) p *vp
$1 = {
v_tag = 0xffffffff81af1c7b "zfs",
v_op = 0xffffffff81b048e0,
v_data = 0x0,
v_mount = 0x0,
v_nmntvnodes = {
tqe_next = 0xfffff801eda4b938,
tqe_prev = 0xfffff80118c5c1f8
},
v_un = {
vu_mount = 0x0,
vu_socket = 0x0,
vu_cdev = 0x0,
vu_fifoinfo = 0x0
},
v_hashlist = {
le_next = 0x0,
le_prev = 0xfffffe0000a39748
},
v_cache_src = {
lh_first = 0x0
},
v_cache_dst = {
tqh_first = 0xfffff800178c6a80,
tqh_last = 0xfffff800178c6aa0
},
v_cache_dd = 0x0,
v_lock = {
lock_object = {
lo_name = 0xffffffff81af1c7b "zfs",
lo_flags = 117112840,
lo_data = 0,
lo_witness = 0x0
},
lk_lock = 1,
lk_exslpfail = 0,
lk_timo = 51,
lk_pri = 96
},
v_interlock = {
lock_object = {
lo_name = 0xffffffff80fe4d4c "vnode interlock",
lo_flags = 16973824,
lo_data = 0,
lo_witness = 0x0
},
mtx_lock = 4
},
v_vnlock = 0xfffff801ed8b0d50,
v_actfreelist = {
tqe_next = 0xfffff80227ca4b10,
tqe_prev = 0xfffff80023a5a648
},
v_bufobj = {
bo_lock = {
lock_object = {
lo_name = 0xffffffff80fe4d5c "bufobj interlock",
lo_flags = 86179840,
lo_data = 0,
lo_witness = 0x0
},
rw_lock = 1
},
bo_ops = 0xffffffff814b7380,
bo_object = 0x0,
bo_synclist = {
le_next = 0x0,
le_prev = 0x0
},
bo_private = 0xfffff801ed8b0ce8,
__bo_vnode = 0xfffff801ed8b0ce8,
bo_clean = {
bv_hd = {
tqh_first = 0x0,
tqh_last = 0xfffff801ed8b0e08
},
bv_root = {
pt_root = 0
},
bv_cnt = 0
},
bo_dirty = {
bv_hd = {
tqh_first = 0x0,
tqh_last = 0xfffff801ed8b0e28
},
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 = 0xfffff801ed8b0e70
},
rl_currdep = 0x0
},
v_cstart = 0,
v_lasta = 0,
v_lastw = 0,
v_clen = 0,
v_holdcnt = 1,
v_usecount = 0,
v_iflag = 512,
v_vflag = 0,
v_writecount = 0,
v_hash = 53603,
v_type = VNON
}
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