panic: vop_generic_bapdoapni
c:Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
91198 92741 32767 0x10 0 1 syz-executor
*253466 25776 32767 0x10 0 0 syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8301e2c6) at panic+0x1e5 sys/kern/subr_prf.c:198
vop_generic_badop(ffff8000363b2168) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807b22bb50,fffffd807b28faf0) at VOP_STRATEGY+0xcc sys/kern/vfs_vops.c:634
bwrite(fffffd807b28faf0) at bwrite+0x293 sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd807b28faf0) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646
ufs_mkdir(ffff8000363b23e0) at ufs_mkdir+0x581 sys/ufs/ufs/ufs_vnops.c:1160
VOP_MKDIR(fffffd8071b37970,ffff8000363b2540,ffff8000363b2570,ffff8000363b2470) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371c0a48,ffffff9c,7a35aa6ea370,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff8000363b26f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000363b26f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a35aa6ea400, count: 4
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: vop_generic_badop
cpu1: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_vnode.c", line 955
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8301e2c6) at panic+0x1e5 sys/kern/subr_prf.c:198
vop_generic_badop(ffff8000363b2168) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807b22bb50,fffffd807b28faf0) at VOP_STRATEGY+0xcc sys/kern/vfs_vops.c:634
bwrite(fffffd807b28faf0) at bwrite+0x293 sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd807b28faf0) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646
ufs_mkdir(ffff8000363b23e0) at ufs_mkdir+0x581 sys/ufs/ufs/ufs_vnops.c:1160
VOP_MKDIR(fffffd8071b37970,ffff8000363b2540,ffff8000363b2570,ffff8000363b2470) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371c0a48,ffffff9c,7a35aa6ea370,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff8000363b26f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000363b26f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a35aa6ea400, count: -11
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff8000363b2090
rbx 0xffffffff83460d87 cpu_info_full_primary+0x2d87
rdx 0
rcx 0xffff8000371c0a48
rax 0xffffffff8345fff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x5a0f56e06a9ecad9
r11 0xd7fd1fc516c2310
r12 0xffffffff83460b88 cpu_info_full_primary+0x2b88
r13 0
r14 0
r15 0x1
rip 0xffffffff81c9c6e5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff8000363b2080
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=253466 pid=25776 tcnt=1 stat=onproc
flags process=10<SUGID> proc=0
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000371c02b0,0xffff8000371c07d0
process=0xffff8000fffecdb8 user=0xffff8000363ad000, vmspace=0xfffffd806c055370
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
92741 91198 80596 32767 7 0x10 syz-executor
92741 164899 80596 32767 3 0x4000090 fsleep syz-executor
81630 381760 26706 0 2 0x100000 sh
26706 237344 33535 0 3 0x10008a sigsusp sh
86159 413396 19853 0 2 0x100002 arp
19853 223327 20815 0 3 0x10008a sigsusp sh
45229 443382 72031 0 2 0x100002 sh
34999 214453 31280 0 2 0x100002 sh
72031 204829 81581 0 3 0x80 wait syz-executor
33535 419142 64657 0 3 0x80 wait syz-executor
31280 10677 87419 0 3 0x80 wait syz-executor
7358 349035 39347 0 2 0x80 syz-executor
80596 471071 27443 32767 3 0x90 nanoslp syz-executor
20815 379614 74815 0 3 0x80 wait syz-executor
81581 449497 23662 0 3 0x82 wait syz-executor
39347 443182 23662 0 3 0x82 wait syz-executor
64657 280010 23662 0 3 0x82 wait syz-executor
87419 49771 23662 0 3 0x82 wait syz-executor
74815 107393 23662 0 3 0x82 wait syz-executor
*25776 253466 22938 32767 7 0x10 syz-executor
27443 435896 23662 0 3 0x82 wait syz-executor
65187 32351 79040 32767 2 0x10 syz-executor
79040 193239 23662 0 3 0x82 wait syz-executor
22938 247126 23662 0 3 0x82 wait syz-executor
97827 257023 0 0 3 0x14200 bored sosplice
23662 146995 31500 0 3 0x82 kqread syz-executor
31500 72959 86119 0 3 0x10008a sigsusp ksh
86119 345795 79207 0 3 0x98 kqread sshd-session
79207 506183 74613 0 3 0x92 kqread sshd-session
24802 422002 1 0 3 0x100083 ttyin getty
74613 414412 1 0 3 0x88 kqread sshd
28520 217589 25153 73 2 0x1100010 syslogd
25153 265564 1 0 3 0x100082 sbwait syslogd
46104 137324 1 0 3 0x100080 kqread resolvd
52979 274117 78142 77 3 0x100092 kqread dhcpleased
29427 95961 78142 77 3 0x100092 kqread dhcpleased
78142 240636 1 0 3 0x80 kqread dhcpleased
89699 48708 0 0 3 0x14200 bored smr
44286 37527 0 0 2 0x14200 zerothread
20023 108724 0 0 3 0x14200 aiodoned aiodoned
88088 434236 0 0 3 0x14200 syncer update
59354 316665 0 0 3 0x14200 cleaner cleaner
24673 324115 0 0 3 0x14200 reaper reaper
91159 208093 0 0 3 0x14200 pgdaemon pagedaemon
39131 160407 0 0 3 0x14200 bored viomb
38844 2523 0 0 3 0x40014200 acpi0 acpi0
73537 230706 0 0 3 0x40014200 idle1
31350 81605 0 0 3 0x14200 bored softnet3
37643 251191 0 0 3 0x14200 bored softnet2
59175 47197 0 0 3 0x14200 bored softnet1
12667 516742 0 0 3 0x14200 bored softnet0
3998 92972 0 0 3 0x14200 bored systqmp
21795 215103 0 0 3 0x14200 bored systq
35947 5702 0 0 3 0x14200 tmoslp softclockmp
17888 187733 0 0 3 0x40014200 tmoslp softclock
6282 126131 0 0 3 0x40014200 idle0
1 513510 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 25776 (syz-executor) thread 0xffff8000371c0a48 (253466)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835eca00)
#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 sleep_finish+0x219 sys/kern/kern_synch.c:416
#4 biowait+0xc1 sys/kern/vfs_bio.c:1254
#5 bwrite+0x2e2 sys/kern/vfs_bio.c:766
#6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111
#7 ufs_mkdir+0x55a sys/ufs/ufs/ufs_vnops.c:1160
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
#10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806bfd3f80)
#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 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#9 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#10 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#11 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806bfd33d0)
#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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 65187 (syz-executor) thread 0xffff8000371c0f58 (32351)
exclusive rrwlock inode r = 0 (0xfffffd806bfd3c50)
#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 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806bfd32c0)
#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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10184 10023K 10035K 166960K 11286 0
pcb 17 12K 12K 166960K 17 0
rtable 154 4K 6K 166960K 481 0
pf 31 16K 16K 166960K 47 0
ifaddr 31 4K 7K 166960K 67 0
ifgroup 50 2K 2K 166960K 82 0
counters 64 36K 36K 166960K 80 0
ioctlops 0 0K 2K 166960K 33 0
iov 0 0K 0K 166960K 1 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1415 89K 89K 166960K 1490 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 4 0K 0K 166960K 4 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 25 93K 145K 166960K 304 0
sigio 0 0K 0K 166960K 4 0
proc 56 78K 176K 166960K 659 0
subproc 104 6K 9K 166960K 208 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 16 0
in_multi 48 3K 7K 166960K 139 0
ether_multi 1 0K 0K 166960K 1 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 43 201K 201K 166960K 43 0
exec 0 0K 1K 166960K 421 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 207 72K 105K 166960K 3599 0
UVM aobj 7 4K 4K 166960K 7 0
pinsyscall 47 94K 122K 166960K 1447 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 6 0
NDP 15 0K 2K 166960K 41 0
temp 37 6814K 6878K 166960K 4684 0
kqueue 13 20K 24K 166960K 29 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> 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 50 0 46 1 0 1 1 0 8 0
rtentry 112 160 0 90 4 0 4 4 0 8 2
unpcb 144 79 0 64 1 0 1 1 0 8 0
syncache 336 5 0 5 2 2 0 1 0 8 0
tcpqe 32 2 0 2 1 1 0 1 0 8 0
tcpcb 808 35 0 29 2 1 1 2 0 8 0
arp 120 31 0 16 1 0 1 1 0 8 0
inpcb 336 149 0 140 3 1 2 2 0 8 1
nd6 136 34 0 25 1 0 1 1 0 8 0
kcovpl 48 16 0 8 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 607 0 357 29 5 24 29 0 8 8
art_table 32 608 0 357 4 0 4 4 0 8 1
art_node 16 159 0 94 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0
semapl 112 2 0 0 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 1647 0 135 95 0 95 95 0 8 0
ffsino 272 1647 0 135 102 0 102 102 0 8 1
nchpl 144 1905 0 231 63 0 63 63 0 8 0
uvmvnodes 80 1864 0 0 39 0 39 39 0 8 0
vnodes 216 1864 0 0 104 0 104 104 0 8 0
namei 1024 6203 0 6202 1 0 1 1 0 8 0
percpumem 16 54 0 8 1 0 1 1 0 8 0
kstatmem 264 38 0 16 2 0 2 2 0 8 0
scxspl 216 6156 0 6156 3 2 1 2 1 8 1
plimitpl 152 64 0 40 2 0 2 2 0 8 0
sigapl 424 559 0 502 9 1 8 8 0 8 0
futexpl 64 932 0 931 2 1 1 1 0 8 0
knotepl 120 303 0 0 9 0 9 9 0 8 0
kqueuepl 216 30 0 21 1 0 1 1 0 8 0
pipepl 320 126 0 99 4 0 4 4 0 8 0
fdescpl 496 540 0 503 9 2 7 7 0 8 0
filepl 152 1844 0 1607 12 0 12 12 0 8 1
lockfpl 104 21 0 19 1 0 1 1 0 8 0
lockfspl 48 10 0 8 1 0 1 1 0 8 0
sessionpl 144 29 0 13 1 0 1 1 0 8 0
pgrppl 48 46 0 22 1 0 1 1 0 8 0
ucredpl 104 138 0 124 1 0 1 1 0 8 0
zombiepl 144 503 0 502 1 0 1 1 0 8 0
processpl 1160 559 0 502 5 0 5 5 0 8 0
procpl 648 654 0 596 6 0 6 6 0 8 0
sosppl 168 3 0 3 2 1 1 1 0 8 1
sockpl 664 278 0 250 5 1 4 4 0 8 1
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 239 0 0 30 0 30 30 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 245 0 0 16 0 16 16 0 8 0
bufpl 280 5266 0 89 370 0 370 370 0 8 0
anonpl 24 145432 0 142367 78 4 74 78 0 185 47
amapchunkpl 152 11742 0 11341 45 5 40 44 0 158 22
amappl16 200 3314 0 3309 5 4 1 5 0 8 0
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 113 0 102 1 0 1 1 0 8 0
amappl13 176 9 0 9 1 1 0 1 0 8 0
amappl12 168 1229 0 1190 4 1 3 3 0 8 1
amappl11 160 50 0 40 1 0 1 1 0 8 0
amappl10 152 11 0 11 1 1 0 1 0 8 0
amappl9 144 139 0 139 1 1 0 1 0 8 0
amappl8 136 20 0 19 1 0 1 1 0 8 0
amappl7 128 116 0 105 1 0 1 1 0 8 0
amappl6 120 221 0 216 1 0 1 1 0 8 0
amappl5 112 153 0 145 1 0 1 1 0 8 0
amappl4 104 289 0 273 1 0 1 1 0 8 0
amappl3 96 2148 0 2071 4 0 4 4 0 8 1
amappl2 88 742 0 663 2 0 2 2 0 8 0
amappl1 80 8056 0 7481 15 1 14 15 0 8 1
amappl 88 3228 0 3077 5 0 5 5 0 92 1
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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 6 0 0 1 0 1 1 0 8 0
uaddrrnd 24 540 0 503 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 540 0 503 1 0 1 1 0 8 0
vmmpekpl 168 6345 0 6299 3 0 3 3 0 8 0
vmmpepl 168 40454 0 38599 95 2 93 93 0 357 5
vmsppl 440 539 0 503 6 0 6 6 0 8 0
rwobjpl 56 17021 0 14285 41 0 41 41 0 8 1
pdppl 4096 1087 0 1006 145 42 103 107 0 8 22
pvpl 32 44416 0 0 359 0 359 359 0 265 0
pmappl 248 539 0 503 5 1 4 4 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 434 0 53 12 0 12 12 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8301e2c6) at panic+0x1e5 sys/kern/subr_prf.c:198
vop_generic_badop(ffff8000363b2168) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807b22bb50,fffffd807b28faf0) at VOP_STRATEGY+0xcc sys/kern/vfs_vops.c:634
bwrite(fffffd807b28faf0) at bwrite+0x293 sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd807b28faf0) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646
ufs_mkdir(ffff8000363b23e0) at ufs_mkdir+0x581 sys/ufs/ufs/ufs_vnops.c:1160
VOP_MKDIR(fffffd8071b37970,ffff8000363b2540,ffff8000363b2570,ffff8000363b2470) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371c0a48,ffffff9c,7a35aa6ea370,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff8000363b26f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000363b26f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a35aa6ea400, count: -11
ddb{0}> machine ddbcpu 1