uvm_fault(0xffffffff8355a950, 0xffff800028c22118, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 13450 97207 0 0x2 0x1 1K syz-executor
167595 19578 0 0x2 0 0 syz-executor
ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182
syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x718727cbdeb0, count: 8
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xffffffff8355a950, 0xffff800028c22118, 0, 1) -> d
ddb{1}> trace
ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182
syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x718727cbdeb0, count: -7
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002a1183f0
rbx 0
rdx 0
rcx 0xffff800028c22000
rax 0x23
r8 0xffffffffffffffff
r9 0xffff80002a118448
r10 0x8ea8d80c9d78e74d
r11 0x1c7542234c0e8718
r12 0x10
r13 0x1
r14 0xffffffff
r15 0xfffffd8073f1d230
rip 0xffffffff82af31ae ffs2_balloc+0x9fe
cs 0x8
rflags 0x10202 __ALIGN_SIZE+0xf202
rsp 0xffff80002a118280
ss 0x10
ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14
ddb{1}> show proc
PROC (syz-executor) tid=13450 pid=97207 tcnt=1 stat=onproc
flags process=2<EXEC> proc=1<INKTR>
runpri=50, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffff22a8,0xffff8000ffff1c10
process=0xffff80003732cda0 user=0xffff80002a113000, vmspace=0xfffffd8009302370
estcpu=36, cpticks=1, pctcpu=0.4, user=0, sys=6, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
26421 355846 27837 0 2 0 syz-executor
26421 72294 27837 0 2 0x4000000 syz-executor
45809 383654 25283 0 2 0 syz-executor
45809 140775 25283 0 2 0x4000000 syz-executor
45809 359291 25283 0 2 0x4000000 syz-executor
63546 412482 53179 0 2 0x10 syz-executor
63546 5686 53179 0 3 0x4000090 fsleep syz-executor
63546 928 53179 0 2 0x4000010 syz-executor
63546 27932 53179 0 3 0x4000090 fsleep syz-executor
98762 495567 85483 0 2 0 syz-executor
98762 271130 85483 0 2 0x4000000 syz-executor
98762 275461 85483 0 3 0x4000080 fsleep syz-executor
52707 233399 82116 0 2 0x10 syz-executor
52707 430727 82116 0 2 0x4000010 syz-executor
52707 354283 82116 0 3 0x4000090 fsleep syz-executor
55388 325832 19578 0 2 0 syz-executor
55388 513080 19578 0 2 0x4000000 syz-executor
55388 304973 19578 0 3 0x4000000 vmmaplk syz-executor
26141 333073 26471 0 2 0x3 syz-executor
*97207 13450 26471 0 7 0x3 syz-executor
85483 54817 26471 0 2 0x3 syz-executor
19578 167595 26471 0 7 0x2 syz-executor
82116 165196 26471 0 2 0x3 syz-executor
53179 161117 26471 0 3 0x82 nanoslp syz-executor
25283 429336 26471 0 2 0x3 syz-executor
27837 383446 26471 0 2 0x3 syz-executor
69069 257989 0 0 3 0x14280 nfsidl nfsio
81655 93405 0 0 3 0x14280 nfsidl nfsio
22559 113976 0 0 3 0x14280 nfsidl nfsio
8573 413914 0 0 3 0x14280 nfsidl nfsio
16900 268781 0 0 3 0x14280 nfsidl nfsio
59635 278333 0 0 3 0x14280 nfsidl nfsio
53614 475465 0 0 3 0x14280 nfsidl nfsio
98738 264907 0 0 3 0x14280 nfsidl nfsio
51133 348495 0 0 3 0x14280 nfsidl nfsio
93515 237709 0 0 3 0x14280 nfsidl nfsio
42816 460801 0 0 3 0x14280 nfsidl nfsio
99378 230516 0 0 3 0x14280 nfsidl nfsio
49981 212619 0 0 3 0x14280 nfsidl nfsio
22917 316214 0 0 3 0x14280 nfsidl nfsio
41291 362318 0 0 3 0x14280 nfsidl nfsio
57884 99922 0 0 3 0x14280 nfsidl nfsio
84497 102320 0 0 3 0x14280 nfsidl nfsio
86958 414908 0 0 3 0x14280 nfsidl nfsio
77694 243668 0 0 3 0x14280 nfsidl nfsio
97416 396059 0 0 3 0x14280 nfsidl nfsio
75385 309608 0 0 3 0x14200 bored sosplice
26471 465136 99803 0 3 0x82 kqread syz-executor
99803 290191 11625 0 3 0x10008a sigsusp ksh
11625 164657 47464 0 3 0x98 kqread sshd-session
47464 30413 25367 0 3 0x92 kqread sshd-session
87594 457508 1 0 3 0x100083 ttyopn getty
25367 218690 1 0 3 0x88 kqread sshd
14308 41075 17294 74 3 0x1100092 bpf pflogd
17294 12433 1 0 3 0x80 sbwait pflogd
6241 222760 34055 73 2 0x1100011 syslogd
34055 268196 1 0 3 0x100082 sbwait syslogd
74692 152406 1 0 3 0x100080 kqread resolvd
3991 180201 89066 77 3 0x100092 kqread dhcpleased
3642 37872 89066 77 3 0x100092 kqread dhcpleased
89066 82424 1 0 3 0x80 kqread dhcpleased
85720 36583 0 0 3 0x14200 bored smr
36443 276515 0 0 3 0x14200 pgzero zerothread
19942 274640 0 0 3 0x14200 aiodoned aiodoned
42423 315423 0 0 3 0x14200 syncer update
34562 338604 0 0 3 0x14200 cleaner cleaner
25670 236958 0 0 3 0x14200 reaper reaper
97404 107863 0 0 3 0x14200 pgdaemon pagedaemon
76103 28292 0 0 3 0x14200 bored viomb
58006 269677 0 0 3 0x40014200 acpi0 acpi0
56393 410695 0 0 3 0x40014200 idle1
62468 150284 0 0 3 0x14200 bored softnet3
52074 331401 0 0 3 0x14200 bored softnet2
96344 476509 0 0 3 0x14200 bored softnet1
71943 101152 0 0 3 0x14200 bored softnet0
75097 183256 0 0 3 0x14200 bored systqmp
41573 465622 0 0 3 0x14200 bored systq
97796 399850 0 0 3 0x14200 tmoslp softclockmp
18411 237207 0 0 3 0x40014200 tmoslp softclock
16888 469550 0 0 3 0x40014200 idle0
1 486573 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 45809 (syz-executor) thread 0xffff8000ffff0cd0 (359291)
exclusive rrwlock inode r = 0 (0xfffffd80679672c8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 cache_lookup+0x36e sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#10 namei+0x7aa sys/kern/vfs_lookup.c:250
#11 ptmioctl+0x4cb sys/kern/tty_pty.c:1143
#12 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#13 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
#14 sys_ioctl+0x67c
#15 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#15 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#16 Xsyscall+0x128
Process 55388 (syz-executor) thread 0xffff8000ffff3970 (513080)
exclusive rwlock vmmaplk r = 0 (0xfffffd806bf35b40)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252
#3 uvm_map_pageable_all+0x69 sys/uvm/uvm_map.c:2329
#4 sys_mlockall+0x85 sys/uvm/uvm_mmap.c:898
#5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#6 Xsyscall+0x128
Process 97207 (syz-executor) thread 0xffff8000ffff3460 (13450)
exclusive rrwlock inode r = 0 (0xfffffd8071eb5098)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ktrwriteraw+0x172 sys/kern/kern_ktrace.c:679
#7 ktrsyscall+0x31d sys/kern/kern_ktrace.c:182
#8 syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
#8 syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83513ac8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 __mp_acquire_count+0x58
#2 mi_switch+0x658 sys/kern/sched_bsd.c:460
#3 yield+0x6a sys/kern/sched_bsd.c:320
#4 malloc+0xe5 sys/kern/kern_malloc.c:170
#5 ktrsyscall+0x17f sys/kern/kern_ktrace.c:174
#6 syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
#6 syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
#7 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10229 10117K 10502K 166960K 12123 0
pcb 17 14K 16K 166960K 228 0
rtable 217 7K 8K 166960K 919 0
pf 41 18K 26K 166960K 113 0
ifaddr 43 7K 7K 166960K 124 0
ifgroup 64 2K 2K 166960K 146 0
sysctl 3 0K 0K 166960K 3 0
counters 68 36K 37K 166960K 112 0
ioctlops 0 0K 4K 166960K 1533 0
iov 0 0K 12K 166960K 135 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1433 90K 90K 166960K 2181 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 8 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 25 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 17 61K 93K 166960K 966 0
sigio 0 0K 0K 166960K 10 0
proc 72 91K 152K 166960K 1022 0
subproc 104 6K 6K 166960K 312 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 70 0
in_multi 92 7K 7K 166960K 301 0
ether_multi 1 0K 0K 166960K 5 0
mrt 0 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 217 970K 970K 166960K 217 0
exec 0 0K 1K 166960K 675 0
pfkey data 0 0K 0K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 250 75K 92K 166960K 9889 0
UVM aobj 14 2K 2K 166960K 15 0
pinsyscall 42 84K 102K 166960K 2471 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 96 0
NDP 14 0K 1K 166960K 86 0
temp 58 6820K 6886K 166960K 38901 0
kqueue 13 20K 28K 166960K 106 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 107 0 104 1 0 1 1 0 8 0
rtentry 112 310 0 212 4 0 4 4 0 8 0
unpcb 144 555 0 533 5 4 1 4 0 8 0
syncache 336 10 0 10 4 4 0 1 0 8 0
tcpqe 32 1 23 1 1 1 0 1 0 8 0
tcpcb 808 332 0 323 13 8 5 8 0 8 2
arp 120 53 0 35 1 0 1 1 0 8 0
inpcb 336 1183 0 1169 20 15 5 7 0 8 1
nd6 136 77 0 54 1 0 1 1 0 8 0
pkpcb 40 3 0 3 3 3 0 1 0 8 0
kcovpl 48 24 0 16 1 0 1 1 0 8 0
ppxss 1168 5 0 5 2 1 1 1 0 8 1
pffrag 232 3 0 1 1 0 1 1 0 482 0
pffrnode 88 3 0 1 1 0 1 1 0 8 0
pffrent 40 3 0 1 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfanchor 1288 3 0 0 1 0 1 1 0 8 0
pftag 88 2 0 1 2 1 1 1 0 8 0
pfstitem 24 89 0 54 1 0 1 1 0 8 0
pfstkey 128 89 0 54 2 0 2 2 0 8 0
pfstate 376 89 0 54 5 0 5 5 0 8 0
pfrule 1344 28 0 20 2 0 2 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 1218 0 804 30 0 30 30 0 8 2
art_table 32 1220 0 804 4 0 4 4 0 8 0
art_node 16 307 0 218 1 0 1 1 0 8 0
sysvmsgpl 40 7 0 3 2 1 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 20 0 10 1 0 1 1 0 8 0
shmpl 112 12 0 1 1 0 1 1 0 8 0
dirhash 1024 27 0 10 3 0 3 3 0 8 0
dino2pl 256 2779 0 1245 96 0 96 96 0 8 0
ffsino 272 2779 0 1245 103 0 103 103 0 8 0
nchpl 144 3849 0 2133 64 0 64 64 0 8 0
uvmvnodes 80 3397 0 0 70 0 70 70 0 8 0
vnodes 216 3397 0 0 189 0 189 189 0 8 0
namei 1024 14533 0 14532 7 5 2 3 0 8 1
percpumem 16 70 0 22 1 0 1 1 0 8 0
kstatmem 264 72 0 44 3 0 3 3 0 8 1
scsiplug 72 2 0 2 2 2 0 1 0 8 0
scxspl 216 19229 0 19229 10 9 1 8 1 8 1
plimitpl 152 227 0 207 1 0 1 1 0 8 0
sigapl 424 1257 0 1186 10 1 9 9 0 8 0
futexpl 64 9648 0 9644 3 2 1 1 0 8 0
knotepl 120 555 0 0 17 0 17 17 0 8 0
kqueuepl 216 230 0 220 5 4 1 5 0 8 0
pipepl 320 306 0 279 7 4 3 7 0 8 0
fdescpl 496 1218 0 1187 6 1 5 5 0 8 0
filepl 152 7119 0 6857 28 16 12 20 0 8 1
lockfpl 104 404 0 401 2 1 1 2 0 8 0
lockfspl 48 106 0 103 1 0 1 1 0 8 0
sessionpl 144 42 0 33 1 0 1 1 0 8 0
pgrppl 48 75 0 58 1 0 1 1 0 8 0
ucredpl 104 1254 0 1233 1 0 1 1 0 8 0
zombiepl 144 1467 0 1465 2 1 1 1 0 8 0
processpl 1160 1257 0 1186 7 1 6 6 0 8 0
procpl 648 2365 0 2282 9 1 8 9 0 8 1
srpgc 96 4 0 4 1 1 0 1 0 8 0
sosppl 168 6 0 5 4 3 1 1 0 8 0
sockpl 664 1856 0 1816 21 14 7 9 0 8 1
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k 2048 222 0 0 28 0 28 28 0 8 0
mtagpl 96 23 0 0 1 0 1 1 0 8 0
mbufpl 256 4312 0 0 270 0 270 270 0 8 0
bufpl 280 6372 0 198 442 0 442 442 0 8 0
anonpl 24 232152 0 222289 70 9 61 61 0 185 1
amapchunkpl 152 32624 0 31763 48 12 36 36 0 158 2
amappl16 200 5034 0 4988 29 23 6 16 0 8 1
amappl15 192 10 0 10 1 1 0 1 0 8 0
amappl14 184 151 0 139 1 0 1 1 0 8 0
amappl13 176 7 0 7 1 1 0 1 0 8 0
amappl12 168 2125 0 2094 3 1 2 2 0 8 0
amappl11 160 51 0 37 1 0 1 1 0 8 0
amappl10 152 9 0 9 1 1 0 1 0 8 0
amappl9 144 140 0 140 1 1 0 1 0 8 0
amappl8 136 23 0 20 1 0 1 1 0 8 0
amappl7 128 137 0 125 1 0 1 1 0 8 0
amappl6 120 324 0 321 1 0 1 1 0 8 0
amappl5 112 202 0 191 1 0 1 1 0 8 0
amappl4 104 368 0 349 1 0 1 1 0 8 0
amappl3 96 6458 0 6338 5 1 4 5 0 8 0
amappl2 88 935 0 868 2 0 2 2 0 8 0
amappl1 80 11879 0 11308 14 0 14 14 0 8 0
amappl 88 9333 0 9145 5 0 5 5 0 92 0
dma16384 16384 1 0 1 1 1 0 1 0 8 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 20 0 19 1 0 1 1 0 8 0
aobjpl 72 14 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1218 0 1187 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1218 0 1187 1 0 1 1 0 8 0
vmmpekpl 168 12092 0 12042 3 0 3 3 0 8 0
vmmpepl 168 82478 0 80590 106 13 93 99 0 357 7
vmsppl 440 1217 0 1187 6 2 4 5 0 8 0
rwobjpl 56 29741 0 25361 62 0 62 62 0 8 0
pdppl 4096 2443 0 2374 141 70 71 85 0 8 2
pvpl 32 29655 0 0 240 1 239 239 0 265 0
pmappl 248 1217 0 1187 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 726 0 106 18 0 18 18 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83464ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff800034186e10) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline]
syscall(ffff800034186e10) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7461a293e1b0, count: 6
ddb{0}> trace
x86_ipi_db(ffffffff83464ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff800034186e10) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline]
syscall(ffff800034186e10) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7461a293e1b0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14
ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182
syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x718727cbdeb0, count: 8
ddb{1}> trace
ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182
syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline]
syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x718727cbdeb0, count: -7