[Bug 219935] Kernel panic in getnewvnode (possibly ZFS related)
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bugzilla-noreply at freebsd.org
Mon Jun 12 09:44:50 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219935
Bug ID: 219935
Summary: Kernel panic in getnewvnode (possibly ZFS related)
Product: Base System
Version: 10.3-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: raimo+freebsd at erix.ericsson.se
I have a server that crashes with a page fault every 3-4 days in ZFS when
allocating a new vnode.
The crashes mostly happens during cron daily, often in find, which probably is
from periodic's setuid_status_chksetuid_enable.
The server has also crashed once from nfscl_nget, and once from vfs_msync.
freebsd-version: 10.3-RELEASE-p19
Extracted from the latest crash - /var/crash/cron.txt.8:
sasquatch.otp.ericsson.se dumped core - see /var/crash/vmcore.8
Sun Jun 11 03:04:33 CEST 2017
FreeBSD sasquatch.otp.ericsson.se 10.3-RELEASE-p18 FreeBSD 10.3-RELEASE-p18 #0:
Tue Apr 11 10:31:00 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:
trap number = 12
panic: page fault
cpuid = 3
KDB: stack backtrace:
#0 0xffffffff8098e7e0 at kdb_backtrace+0x60
#1 0xffffffff809514b6 at vpanic+0x126
#2 0xffffffff80951383 at panic+0x43
#3 0xffffffff80d5646b at trap_fatal+0x36b
#4 0xffffffff80d5676d at trap_pfault+0x2ed
#5 0xffffffff80d55dea at trap+0x47a
#6 0xffffffff80d3bdb2 at calltrap+0x8
#7 0xffffffff809f5980 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 0xffffffff80e80bc1 at VOP_CACHEDLOOKUP_APV+0xa1
#15 0xffffffff809e48d6 at vfs_cache_lookup+0xd6
#16 0xffffffff80e80ab1 at VOP_LOOKUP_APV+0xa1
#17 0xffffffff809ecff1 at lookup+0x5a1
Uptime: 2d23h57m24s
Dumping 1889 out of 12215 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
Reading symbols from /boot/kernel/geom_mirror.ko.symbols...done.
Loaded symbols for /boot/kernel/geom_mirror.ko.symbols
Reading symbols from /boot/kernel/fdescfs.ko.symbols...done.
Loaded symbols for /boot/kernel/fdescfs.ko.symbols
Reading symbols from /boot/kernel/ums.ko.symbols...done.
Loaded symbols for /boot/kernel/ums.ko.symbols
Reading symbols from /boot/kernel/pf.ko.symbols...done.
Loaded symbols for /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) #0 doadump (textdump=<value optimized out>) at pcpu.h:219
#1 0xffffffff80951112 in kern_reboot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:486
#2 0xffffffff809514f5 in vpanic (fmt=<value optimized out>,
ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:889
#3 0xffffffff80951383 in panic (fmt=0x0)
at /usr/src/sys/kern/kern_shutdown.c:818
#4 0xffffffff80d5646b in trap_fatal (frame=<value optimized out>,
eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:858
#5 0xffffffff80d5676d in trap_pfault (frame=0xfffffe034f87aec0,
usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:681
#6 0xffffffff80d55dea in trap (frame=0xfffffe034f87aec0)
at /usr/src/sys/amd64/amd64/trap.c:447
#7 0xffffffff80d3bdb2 in calltrap ()
at /usr/src/sys/amd64/amd64/exception.S:236
#8 0xffffffff809f7725 in vholdl (vp=0xfffff801f6b32938)
at /usr/src/sys/kern/vfs_subr.c:2468
#9 0xffffffff809f5980 in getnewvnode (tag=0xffffffff81af1c7b "zfs",
mp=0xfffff8002cf28330, vops=0xffffffff81b048e0, vpp=0xfffffe034f87b170)
at /usr/src/sys/kern/vfs_subr.c:2163
#10 0xffffffff81a51dda in zfs_znode_alloc (zfsvfs=0xfffff8002cf29000,
db=0xfffff801abbbed80, blksz=512, 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=0xfffff8002cf29000, obj_num=99903,
zpp=0xfffffe034f87b328)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:1221
#12 0xffffffff81a6b195 in zfs_dirent_lock (dlpp=0xfffffe034f87b330,
dzp=<value optimized out>, name=<value optimized out>,
zpp=0xfffffe034f87b328, 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=0xfffff802d55c0170,
name=0xfffffe034f87b410 "in00016072", vpp=0xfffffe034f87b858,
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=0xfffffe034f87b578)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6195
#16 0xffffffff80e80bc1 in VOP_CACHEDLOOKUP_APV (vop=<value optimized out>,
a=<value optimized out>) at vnode_if.c:197
#17 0xffffffff809e48d6 in vfs_cache_lookup (ap=<value optimized out>)
at vnode_if.h:80
#18 0xffffffff80e80ab1 in VOP_LOOKUP_APV (vop=<value optimized out>,
a=<value optimized out>) at vnode_if.c:129
#19 0xffffffff809ecff1 in lookup (ndp=0xfffffe034f87b7f8) at vnode_if.h:54
#20 0xffffffff809ec754 in namei (ndp=0xfffffe034f87b7f8)
at /usr/src/sys/kern/vfs_lookup.c:302
#21 0xffffffff80a00e9e in kern_statat_vnhook (td=0xfffff8002ca9b000,
flag=<value optimized out>, fd=-100,
path=0x801118088 <Address 0x801118088 out of bounds>,
pathseg=UIO_USERSPACE, sbp=0xfffffe034f87b910, hook=0xfffff801f6b329f8)
at /usr/src/sys/kern/vfs_syscalls.c:2301
#22 0xffffffff80a00dac in sys_fstatat (td=0xfffff801f6b32938,
uap=0xfffffe034f87ba40) at /usr/src/sys/kern/vfs_syscalls.c:2281
#23 0xffffffff80d56e3f in amd64_syscall (td=0xfffff8002ca9b000, traced=0)
at subr_syscall.c:141
#24 0xffffffff80d3c09b 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)
:
------------------------------------------------------------------------
fstat
fstat: can't read file 1 at 0x200007fffffffff
fstat: can't read file 2 at 0x4000000001fffff
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
fstat: can't read file 1 at 0x200007fffffffff
fstat: can't read file 2 at 0x4000000001fffff
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
fstat: can't read file 1 at 0x200007fffffffff
fstat: can't read file 2 at 0x4000000001fffff
fstat: can't read file 4 at 0x780000ffff
fstat: can't read file 5 at 0xc00000000
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
fstat: can't read znode_phys at 0x1
:
USER CMD PID FD MOUNT INUM MODE SZ|DV R/W
root cat 90061 root - - error -
root cat 90061 wd - - error -
root cat 90061 text - - error -
root cat 90061 0* pipe fffff801b28af2e8 <-> fffff801b28af448
0 rw
root sh 90059 root - - error -
root sh 90059 wd - - error -
root sh 90059 text - - error -
root sh 90059 0* pipe fffff801b28af2e8 <-> fffff801b28af448
0 rw
root find 90058 root - - error -
root find 90058 wd - - error -
root find 90058 text - - error -
root find 90058 0 /dev 30 crw-rw-rw- null r
root sh 90054 root - - error -
root sh 90054 wd - - error -
root sh 90054 text - - error -
root sh 90054 0 /dev 30 crw-rw-rw- null r
root sh 90054 6 - - error -
root mail 90053 root - - error -
root mail 90053 wd - - error -
root mail 90053 text - - error -
root mail 90053 0* pipe fffff801f60385d0 <-> fffff801f6038730
0 rw
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