panic: vop_generic_badop
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*352119 64973 0 0x2 0 0 syz-executor.3
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828668c8) at panic+0x165 sys/kern/subr_prf.c:198
vop_generic_badop(ffff800035d8f368) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807219e2e8,fffffd8065f90358) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f90358) at bwrite+0x1ca sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd8065f90358) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff800035d8f5e0) at ufs_mkdir+0x445 sys/ufs/ufs/ufs_vnops.c:1175
VOP_MKDIR(fffffd8075679640,ffff800035d8f740,ffff800035d8f770,ffff800035d8f670) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a678818,ffffff9c,750b610e27d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
syscall(ffff800035d8f8e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x750b610e2840, 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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: vop_generic_badop
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828668c8) at panic+0x165 sys/kern/subr_prf.c:198
vop_generic_badop(ffff800035d8f368) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807219e2e8,fffffd8065f90358) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f90358) at bwrite+0x1ca sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd8065f90358) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff800035d8f5e0) at ufs_mkdir+0x445 sys/ufs/ufs/ufs_vnops.c:1175
VOP_MKDIR(fffffd8075679640,ffff800035d8f740,ffff800035d8f770,ffff800035d8f670) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a678818,ffffff9c,750b610e27d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
syscall(ffff800035d8f8e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x750b610e2840, count: -11
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff800035d8f2a0
rbx 0
rdx 0
rcx 0
rax 0xffff80002a678818
r8 0
r9 0x8080808080808080
r10 0xffff800035d8f050
r11 0xb8f76ab1fe5bf661
r12 0
r13 0x2000000 __kernel_phys_base+0x1000000
r14 0
r15 0x1
rip 0xffffffff820514ac db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff800035d8f290
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.3) tid=352119 pid=64973 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a68ba90,0xffff80002a678ad0
process=0xffff80002dafae30 user=0xffff800035d8a000, vmspace=0xfffffd806945ab08
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*64973 352119 84321 0 7 0x2 syz-executor.3
6130 511943 83457 0 2 0x480 syz-executor.5
6130 147221 83457 0 3 0x4000080 bpf syz-executor.5
6130 467363 83457 0 3 0x4000080 fsleep syz-executor.5
25193 409756 49446 0 2 0x480 syz-executor.4
25193 41098 49446 0 3 0x4000080 lockf syz-executor.4
25193 427205 49446 0 3 0x4000080 fsleep syz-executor.4
66524 367737 99966 0 2 0x480 syz-executor.0
66524 98610 99966 0 3 0x4000080 lockf syz-executor.0
66524 342123 99966 0 3 0x4000080 fsleep syz-executor.0
66524 513710 99966 0 3 0x4000080 fsleep syz-executor.0
70616 164678 84321 0 2 0x482 syz-executor.1
57709 15498 0 0 3 0x14280 nfsidl nfsio
49984 183031 0 0 3 0x14280 nfsidl nfsio
14681 400875 0 0 3 0x14280 nfsidl nfsio
43773 307662 0 0 3 0x14280 nfsidl nfsio
1398 456467 0 0 3 0x14280 nfsidl nfsio
41100 256200 0 0 3 0x14280 nfsidl nfsio
7855 95338 0 0 3 0x14280 nfsidl nfsio
46161 166374 0 0 3 0x14280 nfsidl nfsio
42517 101787 0 0 3 0x14280 nfsidl nfsio
65326 312353 0 0 3 0x14280 nfsidl nfsio
58355 260346 0 0 3 0x14280 nfsidl nfsio
44003 436686 0 0 3 0x14280 nfsidl nfsio
33303 416766 0 0 3 0x14280 nfsidl nfsio
11832 385014 0 0 3 0x14280 nfsidl nfsio
44015 179461 0 0 3 0x14280 nfsidl nfsio
57309 383563 0 0 3 0x14280 nfsidl nfsio
41968 449959 0 0 3 0x14280 nfsidl nfsio
44442 127767 0 0 3 0x14280 nfsidl nfsio
24953 445526 0 0 3 0x14280 nfsidl nfsio
9741 22103 0 0 3 0x14280 nfsidl nfsio
73404 217089 84321 0 2 0x2 syz-executor.2
77402 246079 84321 0 2 0x2 syz-executor.6
46073 301022 84321 0 2 0x2 syz-executor.7
49446 470609 84321 0 2 0x482 syz-executor.4
83457 19829 84321 0 3 0x82 nanoslp syz-executor.5
99966 496333 84321 0 3 0x82 nanoslp syz-executor.0
76315 376577 1 0 3 0x18100083 ttyin getty
95114 194548 0 0 3 0x14200 bored sosplice
84321 455548 10411 0 3 0x1a000082 thrsleep syz-fuzzer
84321 499457 10411 0 3 0x1e000082 nanoslp syz-fuzzer
84321 426806 10411 0 3 0x1e000082 wait syz-fuzzer
84321 510908 10411 0 3 0x1e000082 wait syz-fuzzer
84321 137195 10411 0 3 0x1e000082 thrsleep syz-fuzzer
84321 89404 10411 0 3 0x1e000082 thrsleep syz-fuzzer
84321 301709 10411 0 3 0x1e000082 wait syz-fuzzer
84321 24973 10411 0 3 0x1e000082 wait syz-fuzzer
84321 393972 10411 0 3 0x1e000082 wait syz-fuzzer
84321 312184 10411 0 3 0x1e000082 wait syz-fuzzer
84321 123287 10411 0 3 0x1e000082 thrsleep syz-fuzzer
84321 463839 10411 0 3 0x1e000082 kqread syz-fuzzer
84321 461262 10411 0 3 0x1e000082 wait syz-fuzzer
84321 200860 10411 0 3 0x1e000082 wait syz-fuzzer
10411 356698 74377 0 3 0x810008a sigsusp ksh
74377 56683 22439 0 3 0x1800009a kqread sshd
22439 475444 1 0 3 0x18000088 kqread sshd
60461 394708 88906 73 3 0x19100090 kqread syslogd
88906 73859 1 0 3 0x18100082 netio syslogd
59028 403276 1 0 3 0x18100080 kqread resolvd
78405 483184 14572 77 3 0x18100092 kqread dhcpleased
52722 289239 14572 77 3 0x18100092 kqread dhcpleased
14572 167108 1 0 3 0x18000080 kqread dhcpleased
50098 187889 0 0 3 0x14200 bored smr
58930 513923 0 0 2 0x14200 zerothread
77847 370455 0 0 3 0x14200 aiodoned aiodoned
11276 148636 0 0 3 0x14200 syncer update
66946 74242 0 0 3 0x14200 cleaner cleaner
94905 38963 0 0 3 0x14200 reaper reaper
55399 510068 0 0 3 0x14200 pgdaemon pagedaemon
99411 4600 0 0 3 0x14200 bored viomb
54035 130219 0 0 3 0x40014200 acpi0 acpi0
39317 49653 0 0 3 0x14200 bored softnet3
57495 495197 0 0 3 0x14200 bored softnet2
78252 85510 0 0 3 0x14200 bored softnet1
35917 253561 0 0 3 0x14200 bored softnet0
81682 241995 0 0 3 0x14200 bored systqmp
77152 297430 0 0 3 0x14200 bored systq
45257 208148 0 0 2 0x40014200 softclock
22807 460045 0 0 3 0x40014200 idle0
1 139468 0 0 3 0x8080082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10227 6565K 8098K 166960K 91229 0
pcb 15 20K 22K 166960K 3199 0
rtable 206 10K 12K 166960K 10029 0
pf 32 9K 10K 166960K 1591 0
ifaddr 64 24K 28K 166960K 1593 0
ifgroup 55 2K 2K 166960K 2538 0
sysctl 4 1K 1K 166960K 6 0
counters 31 17K 18K 166960K 778 0
ioctlops 0 0K 2K 166960K 2315 0
iov 0 0K 32K 166960K 4421 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1733 109K 109K 166960K 29943 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 538 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 6236 0
dirhash 12 2K 2K 166960K 189 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 13 45K 89K 166960K 40981 0
sigio 0 0K 0K 166960K 1961 0
proc 65 59K 92K 166960K 8613 0
subproc 104 6K 8K 166960K 3276 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 2765 0
in_multi 77 5K 7K 166960K 3211 0
ether_multi 1 0K 0K 166960K 32 0
mrt 4 0K 0K 166960K 22 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 247 1102K 1102K 166960K 247 0
exec 0 0K 1K 166960K 8951 0
pfkey data 0 0K 4K 166960K 155 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 731 1887K 1890K 166960K 369158 0
UVM aobj 131 4K 4K 166960K 134 0
pinsyscall 22 44K 100K 166960K 9345 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 1104 0
NDP 14 0K 2K 166960K 1279 0
temp 75 6804K 7440K 166960K 318112 0
kqueue 13 20K 28K 166960K 2944 0
SYN cache 2 192K 856K 166960K 5 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 2312 0 2309 14 13 1 5 0 8 0
rtentry 112 3246 0 3155 8 4 4 4 0 8 1
unpcb 144 33009 0 32995 68 62 6 10 0 8 5
syncache 336 392 0 392 10 9 1 1 0 8 1
sackhl 24 3 11 3 1 1 0 1 0 8 0
tcpqe 32 497 0 497 10 9 1 1 0 8 1
tcpcb 808 13364 0 13354 97 88 9 16 0 8 5
arp 88 547 0 532 1 0 1 1 0 8 0
ipq 40 20 0 19 6 5 1 1 0 8 0
ipqe 40 137 0 136 6 5 1 1 0 8 0
inpcb 360 34567 0 34551 136 127 9 20 0 8 5
nd6 104 796 0 776 1 0 1 1 0 8 0
pkpcb 40 151 0 151 9 9 0 1 0 8 0
kcovpl 48 251 0 243 1 0 1 1 0 8 0
ppxss 1072 285 0 285 8 7 1 1 0 8 1
art_heap8 4096 4 0 3 3 2 1 3 0 8 0
art_heap4 256 12518 0 12135 95 68 27 31 0 8 3
art_table 32 12522 0 12138 5 1 4 4 0 8 0
art_node 16 3121 0 3038 1 0 1 1 0 8 0
sysvmsgpl 40 69 0 38 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 6233 0 6223 1 0 1 1 0 8 0
shmpl 112 131 0 3 4 0 4 4 0 8 0
dirhash 1024 135 0 118 3 0 3 3 0 8 0
dino2pl 256 56573 0 54905 105 0 105 105 0 8 0
ffsino 240 56573 0 54905 99 0 99 99 0 8 0
nchpl 144 109794 0 108074 66 0 66 66 0 8 0
uvmvnodes 80 8976 0 0 184 0 184 184 0 8 0
vnodes 216 8976 0 0 499 0 499 499 0 8 0
namei 1024 396483 0 396480 11 9 2 3 0 8 1
vcpupl 2048 317 0 1 40 0 40 40 0 8 0
vmpool 664 372 0 56 27 0 27 27 0 8 0
kstatmem 264 1518 0 1494 4 2 2 3 0 8 0
scxspl 216 349607 0 349607 32 28 4 8 1 8 4
plimitpl 152 6143 0 6128 1 0 1 1 0 8 0
sigapl 424 41102 0 41040 10 2 8 9 0 8 0
futexpl 64 366367 0 366363 3 2 1 1 0 8 0
knotepl 120 361724 0 361641 57 54 3 18 0 8 0
kqueuepl 184 7566 0 7557 39 35 4 10 0 8 3
pipepl 288 8341 0 8313 44 37 7 12 0 8 4
fdescpl 432 40739 0 40715 4 0 4 4 0 8 0
filepl 120 262210 0 261962 81 69 12 19 0 8 3
lockfpl 104 11927 0 11921 9 8 1 4 0 8 0
lockfspl 48 3780 0 3776 2 1 1 2 0 8 0
sessionpl 144 271 0 255 1 0 1 1 0 8 0
pgrppl 48 1261 0 1245 1 0 1 1 0 8 0
ucredpl 104 41846 0 41824 1 0 1 1 0 8 0
zombiepl 144 41041 0 41040 3 2 1 1 0 8 0
processpl 1072 41102 0 41040 5 0 5 5 0 8 0
procpl 680 99540 0 99458 12 3 9 9 0 8 0
sosppl 168 418 0 415 5 4 1 1 0 8 0
sockpl 488 70116 0 70086 1032 1018 14 46 0 8 8
mcl64k 65536 1591 0 1591 10 9 1 1 0 8 1
mcl16k 16384 832 0 832 10 9 1 1 0 8 1
mcl12k 12288 1639 0 1639 10 9 1 1 0 8 1
mcl9k 9216 672 0 672 10 9 1 1 0 8 1
mcl8k 8192 2599 0 2599 10 9 1 1 0 8 1
mcl4k 4096 4097 0 4097 9 8 1 1 0 8 1
mcl2k2 2112 246 0 246 10 9 1 1 0 8 1
mcl2k 2048 156530 0 156377 74 53 21 30 0 8 0
mtagpl 96 6929 0 6739 36 31 5 14 0 8 0
mbufpl 256 614943 0 614627 1308 1276 32 300 0 8 8
bufpl 280 80148 0 71173 642 0 642 642 0 8 0
anonpl 24 3646300 0 3633257 208 98 110 152 0 188 0
amapchunkpl 152 1161712 0 1160876 109 66 43 64 0 158 1
amappl16 200 69209 0 68666 128 90 38 40 0 8 7
amappl15 192 290 0 288 1 0 1 1 0 8 0
amappl14 184 895 0 879 2 1 1 2 0 8 0
amappl13 176 47 0 47 6 6 0 1 0 8 0
amappl12 168 44947 0 44915 3 1 2 3 0 8 0
amappl11 160 72 0 61 1 0 1 1 0 8 0
amappl10 152 492 0 476 1 0 1 1 0 8 0
amappl9 144 452 0 452 5 4 1 1 0 8 1
amappl8 136 1630 0 1497 6 0 6 6 0 8 1
amappl7 128 198 0 185 1 0 1 1 0 8 0
amappl6 120 3617 0 3586 2 0 2 2 0 8 0
amappl5 112 1771 0 1759 1 0 1 1 0 8 0
amappl4 104 2881 0 2839 2 0 2 2 0 8 0
amappl3 96 227403 0 227330 3 0 3 3 0 8 0
amappl2 88 43318 0 43242 4 2 2 4 0 8 0
amappl1 80 169749 0 169260 23 10 13 22 0 8 0
amappl 88 365798 0 365442 11 1 10 10 0 92 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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 133 0 3 3 0 3 3 0 8 0
uaddrrnd 24 41111 0 40771 3 0 3 3 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 41111 0 40771 3 0 3 3 0 8 0
vmmpekpl 168 274105 0 274000 6 0 6 6 0 8 0
vmmpepl 168 2466505 0 2463886 271 112 159 159 0 357 11
vmsppl 352 41110 0 40771 32 0 32 32 0 8 0
rwobjpl 24 543392 0 532508 67 0 67 67 0 8 1
pdppl 4096 82228 0 81858 2549 2167 382 382 0 8 12
pvpl 32 11108128 0 11089737 634 438 196 358 0 265 7
pmappl 216 41110 0 40771 21 1 20 20 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 4492 0 3749 23 1 22 22 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828668c8) at panic+0x165 sys/kern/subr_prf.c:198
vop_generic_badop(ffff800035d8f368) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807219e2e8,fffffd8065f90358) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f90358) at bwrite+0x1ca sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd8065f90358) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff800035d8f5e0) at ufs_mkdir+0x445 sys/ufs/ufs/ufs_vnops.c:1175
VOP_MKDIR(fffffd8075679640,ffff800035d8f740,ffff800035d8f770,ffff800035d8f670) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a678818,ffffff9c,750b610e27d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
syscall(ffff800035d8f8e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x750b610e2840, count: -11
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828668c8) at panic+0x165 sys/kern/subr_prf.c:198
vop_generic_badop(ffff800035d8f368) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd807219e2e8,fffffd8065f90358) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f90358) at bwrite+0x1ca sys/kern/vfs_bio.c:757
VOP_BWRITE(fffffd8065f90358) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff800035d8f5e0) at ufs_mkdir+0x445 sys/ufs/ufs/ufs_vnops.c:1175
VOP_MKDIR(fffffd8075679640,ffff800035d8f740,ffff800035d8f770,ffff800035d8f670) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a678818,ffffff9c,750b610e27d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
syscall(ffff800035d8f8e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x750b610e2840, count: -11
ddb>