kern/126703: panic: _mtx_lock_sleep: recursed on non-recursive mutex vnode interlock

kevin kevinxlinuz at 163.com
Thu Aug 21 06:00:14 UTC 2008


>Number:         126703
>Category:       kern
>Synopsis:       panic: _mtx_lock_sleep: recursed on non-recursive mutex vnode interlock
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 21 06:00:11 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     kevin
>Release:        8.0current
>Organization:
163.org
>Environment:
FreeBSD xxx-laptop.people.163.org 8.0-CURRENT FreeBSD 8.0-CURRENT #36: Fri Aug 15 01:59:20 CST 2008     root at xxx-laptop.people.163.org:/usr/obj/usr/src/sys/G8laptop  amd64

>Description:
db>show msgbuf
msgbufp =0xffffffff81420fe0
magic = 63062, size = 65504, r= 17561, w = 18105, ptr = 0xffffffff81411000, cksum= 1482817
_mtx_lock_flags() at _mtx_lock_flags+0x65
zfs_znode_free() at zfs_znode_free+0x91
zfs_freebsd_inactive() at zfs_freebsd_inactive+0x1a
vinactive() at vinactive+0x6b
vput() at vput+0x218
kern_statat() at kern_statat+0xf1
lstat() at lstat+0x22
syscall() at syscall+0x1dd
Xfast_syscall() at Xfast_syacall+0xab
--- syscall (190, FreeBSD ELF64, lstat),rip = 0x8009b788c,rsp = 0x7ffffffe358,rdp = 0x6b6040 ---
panic: _mtx_lock_sleep: recursed on non-recursive mutex vnode interlock @ /usr/src/sys/kern/vfs_subr.c:2298
cpuid = 1
KDB: enter:panic

Copyright......
...

db> bt
Tracing pid 3242 tid 100137 td 0xffffff0004cd0000
kdb_enter() at kdb_enter+0x3d
panic() at panic+0x16c
_mtx_lock_flags() at _mtx_lock_flags
_mtx_lock_flags() at _mtx_lock_flags+0xc0
vinactive() at vinactive+0x81
vput() at vput+0x218
kern_statat() at kern_statat+0xf1
lstat() at lstat+0x22
syscall() at syscall+0x1dd
Xfast_syscall() at Xfast_syacall+0xab
--- syscall (190, FreeBSD ELF64, lstat),rip = 0x8009b788c,rsp = 0x7ffffffe358,rdp = 0x6b6040 ---
---------------------------------------------------------------------
Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-CURRENT #36: Fri Aug 15 01:59:20 CST 2008
    root at xxx-laptop.people.163.org:/usr/obj/usr/src/sys/G8laptop
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz (2394.01-MHz K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x6fb  Stepping = 11
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  AMD Features=0x20100800<SYSCALL,NX,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
usable memory = 4206596096 (4011 MB)
avail memory  = 4039573504 (3852 MB)
ACPI APIC Table: <LENOVO TP-7L   >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
This module (opensolaris) contains code covered by the
Common Development and Distribution License (CDDL)
see http://opensolaris.org/os/licensing/opensolaris_license/
ACPI Warning (tbfadt-0505): Optional field "Gpe1Block" has zero address or length:        0    102C/0 [20070320]
ioapic0: Changing APIC ID to 1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: <LENOVO TP-7L> on motherboard
acpi0: [ITHREAD]
acpi_ec0: <Embedded Controller: GPE 0x12, ECDT> port 0x62,0x66 on acpi0
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, bff00000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0x2000-0x207f mem 0xd2000000-0xd2ffffff,0xe0000000-0xefffffff,0xd0000000-0xd1ffffff irq 16 at device 0.0 on pci1
em0: <Intel(R) PRO/1000 Network Connection 6.9.5> port 0x1840-0x185f mem 0xfe200000-0xfe21ffff,0xfe225000-0xfe225fff irq 20 at device 25.0 on pci0
em0: Using MSI interrupt
em0: [FILTER]
em0: Ethernet address: 00:1c:25:1c:fb:d0
uhci0: <Intel 82801H (ICH8) USB controller USB-D> port 0x1860-0x187f irq 20 at device 26.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <Intel 82801H (ICH8) USB controller USB-D> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801H (ICH8) USB controller USB-E> port 0x1880-0x189f irq 21 at device 26.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <Intel 82801H (ICH8) USB controller USB-E> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
ehci0: <Intel 82801H (ICH8) USB 2.0 controller USB2-B> mem 0xfe226c00-0xfe226fff irq 22 at device 26.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 2 ports each: usb0 usb1
usb2: <Intel 82801H (ICH8) USB 2.0 controller USB2-B> on ehci0
usb2: USB revision 2.0
uhub2: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb2
uhub2: 4 ports with 4 removable, self powered
pcm0: <Intel 82801H High Definition Audio Controller> mem 0xfe220000-0xfe223fff irq 17 at device 27.0 on pci0
pcm0: [ITHREAD]
pcib2: <ACPI PCI-PCI bridge> irq 20 at device 28.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pci2: <memory> at device 0.0 (no driver attached)
pcib3: <ACPI PCI-PCI bridge> irq 21 at device 28.1 on pci0
pci3: <ACPI PCI bus> on pcib3
iwn0: <Intel(R) PRO/Wireless 4965BGN> mem 0xd7dfe000-0xd7dfffff irq 17 at device 0.0 on pci3
iwn0: Reg Domain: MoW1, address 00:1d:e0:48:13:2f
iwn0: [ITHREAD]
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11na MCS: 15Mbps 30Mbps 45Mbps 60Mbps 90Mbps 120Mbps 135Mbps 150Mbps 30Mbps 60Mbps 90Mbps 120Mbps 180Mbps 240Mbps 270Mbps 300Mbps
iwn0: 11ng MCS: 15Mbps 30Mbps 45Mbps 60Mbps 90Mbps 120Mbps 135Mbps 150Mbps 30Mbps 60Mbps 90Mbps 120Mbps 180Mbps 240Mbps 270Mbps 300Mbps
pcib4: <ACPI PCI-PCI bridge> irq 22 at device 28.2 on pci0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> irq 23 at device 28.3 on pci0
pci5: <ACPI PCI bus> on pcib5
pcib6: <ACPI PCI-PCI bridge> irq 20 at device 28.4 on pci0
pci13: <ACPI PCI bus> on pcib6
uhci2: <Intel 82801H (ICH8) USB controller USB-A> port 0x18a0-0x18bf irq 16 at device 29.0 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb3: <Intel 82801H (ICH8) USB controller USB-A> on uhci2
usb3: USB revision 1.0
uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 2 ports with 2 removable, self powered
uhci3: <Intel 82801H (ICH8) USB controller USB-B> port 0x18c0-0x18df irq 17 at device 29.1 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb4: <Intel 82801H (ICH8) USB controller USB-B> on uhci3
usb4: USB revision 1.0
uhub4: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb4
uhub4: 2 ports with 2 removable, self powered
uhci4: <Intel 82801H (ICH8) USB controller USB-C> port 0x18e0-0x18ff irq 18 at device 29.2 on pci0
uhci4: [GIANT-LOCKED]
uhci4: [ITHREAD]
usb5: <Intel 82801H (ICH8) USB controller USB-C> on uhci4
usb5: USB revision 1.0
uhub5: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb5
uhub5: 2 ports with 2 removable, self powered
ehci1: <Intel 82801H (ICH8) USB 2.0 controller USB2-A> mem 0xfe227000-0xfe2273ff irq 19 at device 29.7 on pci0
ehci1: [GIANT-LOCKED]
ehci1: [ITHREAD]
usb6: EHCI version 1.0
usb6: companion controllers, 2 ports each: usb3 usb4 usb5
usb6: <Intel 82801H (ICH8) USB 2.0 controller USB2-A> on ehci1
usb6: USB revision 2.0
uhub6: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb6
uhub6: 6 ports with 6 removable, self powered
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci21: <ACPI PCI bus> on pcib7
cbb0: <RF5C476 PCI-CardBus Bridge> mem 0xf8100000-0xf8100fff irq 16 at device 0.0 on pci21
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [ITHREAD]
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH8M UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1830-0x183f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
atapci1: <Intel AHCI controller> port 0x1c48-0x1c4f,0x1c1c-0x1c1f,0x1c40-0x1c47,0x1c18-0x1c1b,0x1c20-0x1c3f mem 0xfe226000-0xfe2267ff irq 16 at device 31.2 on pci0
atapci1: [ITHREAD]
atapci1: AHCI Version 01.10 controller with 3 ports PM not supported
ata2: <ATA channel 0> on atapci1
ata2: [ITHREAD]
ata3: <ATA channel 1> on atapci1
ata3: port not implemented
ata3: [ITHREAD]
ata4: <ATA channel 2> on atapci1
ata4: [ITHREAD]
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_tz0: <Thermal Zone> on acpi0
acpi_tz1: <Thermal Zone> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: [ITHREAD]
psm0: model Synaptics Touchpad, device ID 0
battery0: <ACPI Control Method Battery> on acpi0
acpi_acad0: <AC Adapter> on acpi0
acpi_ibm0: <IBM ThinkPad ACPI Extras> on acpi0
cpu0: <ACPI CPU> on acpi0
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
est1: <Enhanced SpeedStep Frequency Control> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcefff,0xcf000-0xcffff,0xd0000-0xd0fff,0xd1000-0xd3fff,0xe0000-0xeffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ubt0: <Broadcom Corp BCM2045B, class 224/1, rev 2.00/1.00, addr 2> on uhub0
ubt0: Interface 0 endpoints: interrupt=0x81, bulk-in=0x82, bulk-out=0x2
ubt0: Interface 1 (alt.config 4) endpoints: isoc-in=0x83, isoc-out=0x3; wMaxPacketSize=64; nframes=10, buffer size=640
ugen0: <STMicroelectronics Biometric Coprocessor, class 0/0, rev 1.00/0.01, addr 3> on uhub0
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
Timecounters tick every 1.000 msec
ZFS filesystem version 11
ZFS storage pool version 11
acd0: DVDR <Optiarc DVD RW AD-7910A/1.D1> at ata0-master UDMA33
ad4: 152627MB <FUJITSU MHW2160BH PL 0084001E> at ata2-master SATA150
pcm0: <HDA Codec: Analog Devices AD1984>
pcm0: <HDA Driver Revision: 20080420_0052>
SMP: AP CPU #1 Launched!
WARNING: WITNESS option enabled, expect reduced performance.
GEOM_LABEL: Label for provider ad4s1 is ntfs/System.
GEOM_LABEL: Label for provider ad4s5 is ntfs/Program.
GEOM_LABEL: Label for provider ad4s6 is ntfs/ Data.
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004c35028 struct mount mtx (struct mount mtx) @ /usr/src/sys/kern/vfs_subr.c:346
 2nd 0xffffff0004c35000 vfslock (vfslock) @ /usr/src/sys/kern/vfs_subr.c:373
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc95
vfs_busy() at vfs_busy+0xd0
vfs_mount_alloc() at vfs_mount_alloc+0x80
vfs_mountroot() at vfs_mountroot+0x23b
start_init() at start_init+0x62
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xfffffffe40018d30, rbp = 0 ---
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004c36470 vnode interlock (vnode interlock) @ /usr/src/sys/fs/devfs/devfs_vnops.c:286
 2nd 0xffffff0004c36448 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2051
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc52
vop_stdlock() at vop_stdlock+0x39
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x50
vget() at vget+0x7d
devfs_allocv() at devfs_allocv+0xf9
devfs_root() at devfs_root+0x49
set_rootvnode() at set_rootvnode+0x2d
vfs_mountroot() at vfs_mountroot+0x2f8
start_init() at start_init+0x62
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xfffffffe40018d30, rbp = 0 ---
Trying to mount root from ufs:/dev/ad4s3a
WARNING: / was not properly dismounted
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004b77da8 vnode interlock (vnode interlock) @ /usr/src/sys/kern/vfs_hash.c:79
 2nd 0xffffff0004b77d80 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2051
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc52
ffs_lock() at ffs_lock+0x8c
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x50
vget() at vget+0x7d
vfs_hash_get() at vfs_hash_get+0xd1
ffs_vget() at ffs_vget+0x39
ufs_root() at ufs_root+0x1e
set_rootvnode() at set_rootvnode+0x2d
vfs_mountroot_try() at vfs_mountroot_try+0x27a
vfs_mountroot() at vfs_mountroot+0x3e5
start_init() at start_init+0x62
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xfffffffe40018d30, rbp = 0 ---
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004b77e00 bufobj interlock (bufobj interlock) @ /usr/src/sys/kern/vfs_bio.c:2429
 2nd 0xfffffffe803a2de8 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc52
getblk() at getblk+0xda
breadn() at breadn+0x34
bread() at bread+0x1e
ffs_blkatoff() at ffs_blkatoff+0x56
ufs_lookup() at ufs_lookup+0x5ab
vfs_cache_lookup() at vfs_cache_lookup+0xe5
VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x97
lookup() at lookup+0x4ec
namei() at namei+0x531
kern_unlinkat() at kern_unlinkat+0xa8
vfs_mountroot_try() at vfs_mountroot_try+0x423
vfs_mountroot() at vfs_mountroot+0x3e5
start_init() at start_init+0x62
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xfffffffe40018d30, rbp = 0 ---
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004b77648 vnode interlock (vnode interlock) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:167
 2nd 0xffffff0004c32000 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:178
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc95
ufsdirhash_build() at ufsdirhash_build+0xdb
ufs_lookup() at ufs_lookup+0x10a
vfs_cache_lookup() at vfs_cache_lookup+0xe5
VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x97
lookup() at lookup+0x4ec
namei() at namei+0x531
kern_statat() at kern_statat+0x85
lstat() at lstat+0x22
syscall() at syscall+0x1dd
Xfast_syscall() at Xfast_syscall+0xab
--- syscall (190, FreeBSD ELF64, lstat), rip = 0x444a7c, rsp = 0x7fffffffe2c8, rbp = 0x47e863 ---
lock order reversal: (sleepable after non-sleepable)
 1st 0xffffff0004ce3d80 zfs (zfs) @ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:877
 2nd 0xffffff0004fa1298 vnode interlock (vnode interlock) @ /usr/src/sys/kern/vfs_cache.c:438
 3rd 0xffffff0004fa1270 zfs (zfs) @ /usr/src/sys/kern/vfs_subr.c:2051
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x45
witness_checkorder() at witness_checkorder+0x75c
__lockmgr_args() at __lockmgr_args+0xc52
vop_stdlock() at vop_stdlock+0x39
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x50
vget() at vget+0x7d
cache_lookup() at cache_lookup+0x1d5
vfs_cache_lookup() at vfs_cache_lookup+0xb0
VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x97
lookup() at lookup+0x4ec
namei() at namei+0x531
vfs_donmount() at vfs_donmount+0x999
nmount() at nmount+0xa8
syscall() at syscall+0x1dd
Xfast_syscall() at Xfast_syscall+0xab
--- syscall (378, FreeBSD ELF64, nmount), rip = 0x800f34fac, rsp = 0x7fffffffcf48, rbp = 0x7fffffffcf60 ---
WARNING: attempt to net_add_domain(bluetooth) after domainfinalize()
WARNING: attempt to net_add_domain(netgraph) after domainfinalize()
pid 1323 (scim-helper-manager), uid 1001: exited on signal 11

>How-To-Repeat:
update source tree to Aug 15,then update to current.
panic random.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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