panic:p a n vicop:_ kgeernenreli c_ dbaiadognp ostStopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 100427 40558 32767 0x10 0x4000000 1 syz-executor.2 * 54760 68942 32767 0x10 0 0 syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82740948) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002ca1b528) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80664e3510,fffffd807aefd278) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd807aefd278) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd807aefd278) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002ca1b7c0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd806534ace0,ffff80002ca1b920,ffff80002ca1b950,ffff80002ca1b850) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212922e8,ffffff9c,7f7ffffd17e0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002ca1bad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002ca1bad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd1850, 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 "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/kern/kern_fork.c", line 674 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82740948) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002ca1b528) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80664e3510,fffffd807aefd278) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd807aefd278) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd807aefd278) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002ca1b7c0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd806534ace0,ffff80002ca1b920,ffff80002ca1b950,ffff80002ca1b850) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212922e8,ffffff9c,7f7ffffd17e0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002ca1bad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002ca1bad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd1850, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ca1b450 rbx 0xffffffff82bc2b8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff8000212922e8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8f58a432a9fa4d48 r11 0x39048db972e0b5c0 r12 0xffffffff82bc2990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff818c3858 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002ca1b440 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) pid=54760 stat=onproc flags process=10 proc=0 pri=17, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff8000212ac2e0,0xffff8000212c9350 process=0xffff800027b7f688 user=0xffff80002ca16000, vmspace=0xfffffd8065ee4388 estcpu=36, cpticks=0, pctcpu=0.4 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44198 515251 28345 32767 2 0x10 syz-executor.3 40558 207023 76965 32767 2 0x10 syz-executor.2 40558 100427 76965 32767 7 0x4000010 syz-executor.2 91288 283167 73876 32767 2 0x10 syz-executor.4 91288 433603 73876 32767 3 0x4000090 fsleep syz-executor.4 23469 124201 42553 32767 2 0x10 syz-executor.5 23469 366663 42553 32767 2 0x4000010 syz-executor.5 16077 517500 72779 32767 2 0x10 syz-executor.6 16077 73794 72779 32767 3 0x4000090 fsleep syz-executor.6 16077 302630 72779 32767 3 0x4000090 fsleep syz-executor.6 42553 493859 25320 32767 3 0x90 nanoslp syz-executor.5 *68942 54760 7943 32767 7 0x10 syz-executor.7 72779 219445 90632 32767 3 0x90 nanoslp syz-executor.6 73876 18350 68825 32767 3 0x90 nanoslp syz-executor.4 7943 12941 75209 0 3 0x82 wait syz-executor.7 90632 10265 75209 0 3 0x82 wait syz-executor.6 25320 215814 75209 0 3 0x82 wait syz-executor.5 68825 11853 75209 0 3 0x82 wait syz-executor.4 28345 295847 62808 32767 2 0x10 syz-executor.3 76965 270484 40960 32767 3 0x90 nanoslp syz-executor.2 62808 66023 75209 0 3 0x82 wait syz-executor.3 40960 191319 75209 0 3 0x82 wait syz-executor.2 10420 240518 20464 32767 2 0x10 syz-executor.1 7453 319680 21844 32767 2 0x10 syz-executor.0 20464 284294 75209 0 3 0x82 wait syz-executor.1 21844 356840 75209 0 3 0x82 wait syz-executor.0 75209 429001 2130 0 3 0x82 wait syz-fuzzer 75209 45676 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 197847 2130 0 3 0x4000082 wait syz-fuzzer 75209 277915 2130 0 3 0x4000082 wait syz-fuzzer 75209 279532 2130 0 3 0x4000082 wait syz-fuzzer 75209 369945 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 48752 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 381560 2130 0 3 0x4000082 wait syz-fuzzer 75209 368043 2130 0 3 0x4000082 wait syz-fuzzer 75209 326333 2130 0 3 0x4000082 wait syz-fuzzer 75209 102099 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 126532 2130 0 3 0x4000082 wait syz-fuzzer 75209 99390 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 234902 2130 0 3 0x4000082 thrsleep syz-fuzzer 75209 70251 2130 0 3 0x4000082 kqread syz-fuzzer 2130 445442 90013 0 3 0x10008a sigsusp ksh 90013 34673 30652 0 3 0x9a kqread sshd 78909 510032 1 0 3 0x100083 ttyin getty 30652 21259 1 0 3 0x88 kqread sshd 3082 90259 1335 73 3 0x1100090 kqread syslogd 1335 198395 1 0 3 0x100082 netio syslogd 54714 377584 1 0 3 0x100080 kqread resolvd 31811 93522 93270 77 3 0x100092 kqread dhcpleased 13782 292350 93270 77 3 0x100092 kqread dhcpleased 93270 295915 1 0 3 0x80 kqread dhcpleased 78038 330134 0 0 3 0x14200 bored smr 41068 54283 0 0 2 0x14200 zerothread 38782 55769 0 0 3 0x14200 aiodoned aiodoned 82759 385230 0 0 3 0x14200 syncer update 68467 167902 0 0 3 0x14200 cleaner cleaner 69794 64713 0 0 3 0x14200 reaper reaper 32854 440268 0 0 3 0x14200 pgdaemon pagedaemon 56107 268203 0 0 3 0x14200 bored viomb 22502 499469 0 0 3 0x40014200 acpi0 acpi0 50129 310677 0 0 3 0x40014200 idle1 59977 367634 0 0 3 0x14200 bored softnet 51462 476412 0 0 3 0x14200 bored softnet 51725 463170 0 0 3 0x14200 bored softnet 849 69484 0 0 3 0x14200 bored softnet 84140 478548 0 0 3 0x14200 bored systqmp 72657 63953 0 0 3 0x14200 bored systq 38869 280543 0 0 3 0x40014200 bored softclock 35425 97283 0 0 3 0x40014200 idle0 1 59119 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 68942 (syz-executor.7) thread 0xffff8000212922e8 (54760) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c2ca98) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:405 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 tsleep+0x12c sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1268 #6 bwrite+0x21b sys/kern/vfs_bio.c:769 #7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113 #8 ufs_mkdir+0x662 sys/ufs/ufs/ufs_vnops.c:1220 #9 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #10 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #11 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #11 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068e030a8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #10 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #11 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806853b0a0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #9 Xsyscall+0x128 Process 10420 (syz-executor.1) thread 0xffff8000212ac850 (240518) exclusive rrwlock inode r = 0 (0xfffffd8068e03e78) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068bc6e68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 6409K 6421K 78643K 11286 0 pcb 13 8K 8K 78643K 13 0 rtable 238 6K 6K 78643K 363 0 ifaddr 73 24K 24K 78643K 75 0 counters 60 35K 35K 78643K 60 0 ioctlops 0 0K 2K 78643K 30 0 iov 0 0K 0K 78643K 17 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 79K 78643K 1303 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 189 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 109K 78643K 354 0 proc 56 78K 103K 78643K 482 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 29 0 in_multi 99 6K 6K 78643K 115 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 379 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 287 80K 80K 78643K 4135 0 UVM aobj 25 2K 2K 78643K 27 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 20 0 NDP 11 0K 2K 78643K 27 0 temp 89 5765K 5829K 78643K 4541 0 kqueue 12 18K 22K 78643K 47 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 53 0 50 1 0 1 1 0 8 0 rtentry 112 113 0 1 4 0 4 4 0 8 0 unpcb 144 335 0 322 6 0 6 6 0 8 5 syncache 296 7 0 7 2 1 1 1 0 8 1 tcpqe 32 440 0 440 3 2 1 2 0 8 1 tcpcb 776 86 0 82 4 0 4 4 0 8 3 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 368 357 0 349 7 0 7 7 0 8 5 nd6 48 26 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 455 0 0 29 0 29 29 0 8 0 art_table 32 456 0 0 4 0 4 4 0 8 0 art_node 16 112 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 187 0 177 1 0 1 1 0 8 0 shmpl 112 24 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1770 0 338 90 0 90 90 0 8 0 ffsino 272 1770 0 338 96 0 96 96 0 8 0 nchpl 144 2342 0 672 63 0 63 63 0 8 0 uvmvnodes 80 1883 0 0 39 0 39 39 0 8 0 vnodes 216 1883 0 0 105 0 105 105 0 8 0 namei 1024 8259 0 8258 2 1 1 2 0 8 0 percpumem 16 43 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 7934 0 7934 9 1 8 8 0 8 8 plimitpl 152 79 0 55 2 0 2 2 0 8 1 sigapl 424 646 0 595 7 0 7 7 0 8 0 futexpl 64 2492 0 2489 1 0 1 1 0 8 0 knotepl 120 116 0 0 4 0 4 4 0 8 0 kqueuepl 216 63 0 55 1 0 1 1 0 8 0 pipepl 320 147 0 119 3 0 3 3 0 8 0 fdescpl 496 629 0 595 7 1 6 6 0 8 0 filepl 152 3266 0 3027 15 0 15 15 0 8 5 lockfpl 104 12 0 9 1 0 1 1 0 8 0 lockfspl 48 7 0 4 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 7 1 0 1 1 0 8 0 ucredpl 104 273 0 255 1 0 1 1 0 8 0 zombiepl 144 595 0 595 1 0 1 1 0 8 1 processpl 1072 646 0 595 4 0 4 4 0 8 0 procpl 696 1114 0 1044 10 1 9 9 0 8 2 sockpl 488 749 0 726 20 9 11 20 0 8 8 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 412 0 0 51 0 51 51 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 458 0 0 29 0 29 29 0 8 0 bufpl 288 4279 0 140 296 0 296 296 0 8 0 anonpl 24 165082 0 152164 86 2 84 84 0 186 1 amapchunkpl 152 11507 0 10811 33 0 33 33 0 158 1 amappl16 200 3016 0 2691 19 0 19 19 0 8 0 amappl15 192 11 0 10 1 0 1 1 0 8 0 amappl14 184 146 0 135 2 1 1 2 0 8 0 amappl13 176 19 0 18 1 0 1 1 0 8 0 amappl12 168 398 0 395 1 0 1 1 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 32 0 23 1 0 1 1 0 8 0 amappl9 144 960 0 959 1 0 1 1 0 8 0 amappl8 136 158 0 119 2 0 2 2 0 8 0 amappl7 128 139 0 118 2 0 2 2 0 8 0 amappl6 120 177 0 164 2 1 1 2 0 8 0 amappl5 112 120 0 114 1 0 1 1 0 8 0 amappl4 104 490 0 460 2 0 2 2 0 8 0 amappl3 96 1279 0 1222 2 0 2 2 0 8 0 amappl2 88 989 0 914 3 1 2 3 0 8 0 amappl1 80 16499 0 15758 26 8 18 26 0 8 0 amappl 88 3644 0 3456 5 0 5 5 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 26 0 2 1 0 1 1 0 8 0 uaddrrnd 24 629 0 595 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 629 0 595 1 0 1 1 0 8 0 vmmpekpl 168 10936 0 10885 3 0 3 3 0 8 0 vmmpepl 168 66079 0 63423 140 0 140 140 0 357 21 vmsppl 440 628 0 595 5 0 5 5 0 8 0 rwobjpl 56 21434 0 18134 51 3 48 48 0 8 0 pdppl 4096 1265 0 1190 111 30 81 87 0 8 6 pvpl 32 401879 0 383076 340 8 332 338 0 265 171 pmappl 248 628 0 595 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 724 0 33 20 0 20 20 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82740948) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002ca1b528) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80664e3510,fffffd807aefd278) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd807aefd278) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd807aefd278) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002ca1b7c0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd806534ace0,ffff80002ca1b920,ffff80002ca1b950,ffff80002ca1b850) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212922e8,ffffff9c,7f7ffffd17e0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002ca1bad0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002ca1bad0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd1850, count: -11 ddb{0}> machine ddbcpu 1