panic: vop_generic_pbaadnoipc: kStopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *329429 66833 32767 0x10 0 0 syz-executor.4 26555 44184 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8259746e) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002620a258) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80689a2cc8,fffffd806b4f27f0) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd806b4f27f0) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd806b4f27f0) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002620a4f0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd80689a26e0,ffff80002620a650,ffff80002620a680,ffff80002620a580) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000ffff5270,ffffff9c,7f7fffff19c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002620a800) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002620a800) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1a30, 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/uvm/uvm_map.c", line 2486 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8259746e) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002620a258) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80689a2cc8,fffffd806b4f27f0) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd806b4f27f0) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd806b4f27f0) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002620a4f0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd80689a26e0,ffff80002620a650,ffff80002620a680,ffff80002620a580) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000ffff5270,ffffff9c,7f7fffff19c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002620a800) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002620a800) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1a30, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002620a180 rbx 0xffffffff82944b8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff8000ffff5270 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7780803305ba3e97 r11 0xfbb42ac3cee4f5dc r12 0xffffffff82944990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff81cbc598 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002620a170 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) pid=329429 stat=onproc flags process=10 proc=0 pri=17, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff62b0,0xffff8000ffff4aa0 process=0xffff80002129a9a0 user=0xffff800026205000, vmspace=0xfffffd806b39fa20 estcpu=36, cpticks=0, pctcpu=0.1 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91816 300465 79365 32767 2 0x10 syz-executor.1 91816 144834 79365 32767 3 0x4000090 ttyout syz-executor.1 48825 507246 43346 32767 2 0x4003010 syz-executor.2 1905 227426 97065 32767 3 0x90 nanoslp syz-executor.0 1905 243123 97065 32767 3 0x4000090 fsleep syz-executor.0 1905 481500 97065 32767 3 0x4000090 fsleep syz-executor.0 22597 388423 43756 32767 3 0x90 nanoslp syz-executor.5 22597 91725 43756 32767 2 0x4000010 syz-executor.5 22597 267730 43756 32767 3 0x4000090 fsleep syz-executor.5 25583 191890 15492 32767 2 0x10 syz-executor.6 25583 253599 15492 32767 2 0x4000010 syz-executor.6 33877 319258 91960 32767 2 0x10 syz-executor.7 91960 165829 84291 0 3 0x82 wait syz-executor.7 43346 240652 52962 32767 2 0x490 syz-executor.2 52962 386895 84291 0 3 0x82 wait syz-executor.2 97065 226460 52295 32767 3 0x90 nanoslp syz-executor.0 52295 515677 84291 0 3 0x82 wait syz-executor.0 79365 317795 91864 32767 3 0x90 nanoslp syz-executor.1 91864 270665 84291 0 3 0x82 wait syz-executor.1 51911 463298 0 0 3 0x14200 bored sosplice 15492 284902 22983 32767 3 0x90 nanoslp syz-executor.6 43756 315526 72342 32767 2 0x490 syz-executor.5 22983 302719 84291 0 3 0x82 wait syz-executor.6 *66833 329429 97411 32767 7 0x10 syz-executor.4 41474 126352 14899 32767 3 0x90 nanoslp syz-executor.3 14899 325613 84291 0 3 0x82 wait syz-executor.3 97411 268399 84291 0 3 0x82 wait syz-executor.4 72342 438013 84291 0 3 0x82 wait syz-executor.5 84291 475749 9085 0 3 0x82 thrsleep syz-fuzzer 84291 56979 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 402884 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 251991 9085 0 3 0x4000082 wait syz-fuzzer 84291 156243 9085 0 3 0x4000082 wait syz-fuzzer 84291 295084 9085 0 3 0x4000082 wait syz-fuzzer 84291 451006 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 23803 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 404689 9085 0 3 0x4000082 wait syz-fuzzer 84291 340574 9085 0 3 0x4000082 wait syz-fuzzer 84291 522563 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 350760 9085 0 3 0x4000082 wait syz-fuzzer 84291 71687 9085 0 2 0x4000082 syz-fuzzer 84291 157076 9085 0 3 0x4000082 wait syz-fuzzer 84291 204214 9085 0 3 0x4000082 thrsleep syz-fuzzer 84291 148715 9085 0 3 0x4000082 wait syz-fuzzer 9085 46371 8061 0 3 0x10008a sigsusp ksh 8061 202264 67670 0 3 0x9a kqread sshd 62000 422933 1 0 3 0x100083 ttyin getty 67670 32055 1 0 3 0x88 kqread sshd 73365 482200 47562 73 3 0x1100090 kqread syslogd 47562 412329 1 0 3 0x100082 netio syslogd 46823 207605 1 0 3 0x100080 kqread resolvd 57054 378746 73441 77 3 0x100092 kqread dhcpleased 15296 273215 73441 77 3 0x100092 kqread dhcpleased 73441 315421 1 0 3 0x80 kqread dhcpleased 80927 289711 0 0 3 0x14200 bored smr 95414 486485 0 0 2 0x14200 zerothread 80057 63108 0 0 3 0x14200 aiodoned aiodoned 13084 46238 0 0 3 0x14200 syncer update 5115 23543 0 0 3 0x14200 cleaner cleaner 44184 26555 0 0 7 0x14200 reaper 90076 83821 0 0 3 0x14200 pgdaemon pagedaemon 63494 273698 0 0 3 0x14200 bored viomb 55511 393742 0 0 3 0x40014200 acpi0 acpi0 84638 476883 0 0 3 0x40014200 idle1 47077 63328 0 0 3 0x14200 bored softnet 21066 36258 0 0 3 0x14200 bored softnet 57261 79905 0 0 2 0x14200 softnet 86618 10059 0 0 3 0x14200 bored softnet 22328 430164 0 0 3 0x14200 bored systqmp 45558 464516 0 0 3 0x14200 bored systq 84702 354022 0 0 3 0x40014200 bored softclock 14163 420707 0 0 3 0x40014200 idle0 1 208842 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &fp->f_mtx r = 0 (0xfffffd806ab27918) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 sendit+0x725 sys/kern/uipc_syscalls.c:797 #4 sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:674 #5 syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] #5 syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 Process 33877 (syz-executor.7) thread 0xffff800022d65508 (319258) exclusive rrwlock inode r = 0 (0xfffffd806bca9c48) #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 vn_closefile+0xc6 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xc6 sys/kern/vfs_vnops.c:609 #6 fdrop+0xc7 sys/kern/kern_descrip.c:1274 #7 closef+0x11c sys/kern/kern_descrip.c:1258 #8 syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 66833 (syz-executor.4) thread 0xffff8000ffff5270 (329429) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b8f7f8) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:415 #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+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #11 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068733c58) #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+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #12 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807423ed60) #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:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 6411K 6420K 78643K 11323 0 pcb 13 10K 12K 78643K 15 0 rtable 234 6K 7K 78643K 922 0 ifaddr 82 17K 17K 78643K 149 0 sysctl 2 0K 1K 78643K 5 0 counters 56 35K 35K 78643K 74 0 ioctlops 0 0K 2K 78643K 95 0 iov 0 0K 28K 78643K 778 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 79K 78643K 2116 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 54 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 877 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 115K 78643K 4149 0 sigio 0 0K 0K 78643K 153 0 proc 56 78K 115K 78643K 1042 0 subproc 104 6K 6K 78643K 221 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 273 0 in_multi 99 6K 7K 78643K 290 0 ether_multi 1 0K 0K 78643K 40 0 mrt 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 175 784K 784K 78643K 175 0 exec 0 0K 2K 78643K 1422 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 308 90K 100K 78643K 26700 0 UVM aobj 131 4K 4K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 74 0 NDP 11 0K 2K 78643K 54 0 temp 124 4734K 4800K 78643K 13578 0 kqueue 13 20K 26K 78643K 412 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 120 651 0 648 9 8 1 4 0 8 0 rtentry 112 216 0 106 4 0 4 4 0 8 0 unpcb 144 9984 0 9960 57 52 5 11 0 8 4 syncache 296 24 0 24 7 7 0 1 0 8 0 tcpqe 32 7 0 7 3 3 0 1 0 8 0 tcpcb 768 1632 0 1623 54 48 6 9 0 8 5 arp 120 38 0 20 1 0 1 1 0 8 0 ipq 40 10 0 9 4 3 1 1 0 8 0 ipqe 40 88 0 87 4 3 1 1 0 8 0 inpcb 368 4110 0 4102 62 55 7 14 0 8 5 nd6 48 55 0 31 1 0 1 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 875 0 420 30 0 30 30 0 8 1 art_table 32 876 0 420 4 0 4 4 0 8 0 art_node 16 215 0 115 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 15 1 0 1 1 0 8 0 semapl 112 872 0 862 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6906 0 5462 91 0 91 91 0 8 0 ffsino 272 6906 0 5462 97 0 97 97 0 8 0 nchpl 144 12699 0 11063 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 44003 0 44002 2 1 1 2 0 8 0 percpumem 16 49 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scxspl 216 39714 0 39714 16 14 2 8 0 8 2 plimitpl 152 649 0 625 9 8 1 2 0 8 0 sigapl 424 4418 0 4365 8 1 7 7 0 8 0 futexpl 64 36236 0 36233 1 0 1 1 0 8 0 knotepl 120 677 0 0 18 1 17 17 0 8 0 kqueuepl 216 1004 0 995 19 18 1 5 0 8 0 pipepl 320 1272 0 1243 34 31 3 13 0 8 0 fdescpl 496 4400 0 4366 6 1 5 6 0 8 0 filepl 152 34459 0 34205 72 57 15 20 0 8 3 lockfpl 104 472 0 470 2 1 1 2 0 8 0 lockfspl 48 135 0 133 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 309 0 293 1 0 1 1 0 8 0 ucredpl 104 4768 0 4750 1 0 1 1 0 8 0 zombiepl 144 4367 0 4365 1 0 1 1 0 8 0 processpl 1064 4418 0 4365 4 0 4 4 0 8 0 procpl 672 12662 0 12583 18 10 8 9 0 8 0 sosppl 168 59 0 59 5 4 1 1 0 8 1 sockpl 488 14828 0 14792 350 339 11 36 0 8 5 mcl64k 65536 26 0 0 4 1 3 3 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 49 0 0 5 2 3 4 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 283 0 0 30 0 30 30 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1258 0 0 73 0 73 73 0 8 0 bufpl 288 9794 0 3456 454 1 453 454 0 8 0 anonpl 24 898356 0 884253 179 84 95 109 0 186 0 amapchunkpl 152 88094 0 87370 75 34 41 42 0 158 11 amappl16 200 13987 0 13591 76 51 25 33 0 8 3 amappl15 192 1918 0 1909 1 0 1 1 0 8 0 amappl14 184 359 0 358 1 0 1 1 0 8 0 amappl13 176 648 0 644 1 0 1 1 0 8 0 amappl12 168 222 0 217 3 2 1 1 0 8 0 amappl11 160 376 0 359 1 0 1 1 0 8 0 amappl10 152 89 0 86 2 1 1 1 0 8 0 amappl9 144 542 0 540 1 0 1 1 0 8 0 amappl8 136 1473 0 1378 4 0 4 4 0 8 0 amappl7 128 809 0 790 1 0 1 1 0 8 0 amappl6 120 298 0 283 2 1 1 2 0 8 0 amappl5 112 3269 0 3247 1 0 1 1 0 8 0 amappl4 104 1639 0 1603 2 0 2 2 0 8 0 amappl3 96 13641 0 13569 2 0 2 2 0 8 0 amappl2 88 1246 0 1193 3 1 2 2 0 8 0 amappl1 80 111097 0 110248 26 7 19 21 0 8 1 amappl 88 25900 0 25705 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 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 4402 0 4367 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4402 0 4367 1 0 1 1 0 8 0 vmmpekpl 168 43048 0 42994 5 1 4 4 0 8 0 vmmpepl 168 436609 0 433640 218 78 140 155 0 357 5 vmsppl 368 4401 0 4367 4 0 4 4 0 8 0 rwobjpl 56 116137 0 108516 113 4 109 110 0 8 1 pdppl 4096 8811 0 8734 212 131 81 89 0 8 4 pvpl 32 1870892 0 1851105 347 172 175 253 0 265 4 pmappl 248 4401 0 4367 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1077 0 194 26 0 26 26 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(ffffffff8259746e) at panic+0x177 sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002620a258) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd80689a2cc8,fffffd806b4f27f0) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628 bwrite(fffffd806b4f27f0) at bwrite+0x1f0 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd806b4f27f0) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002620a4f0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 VOP_MKDIR(fffffd80689a26e0,ffff80002620a650,ffff80002620a680,ffff80002620a580) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000ffff5270,ffffff9c,7f7fffff19c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002620a800) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002620a800) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1a30, count: -11 ddb{0}> machine ddbcpu 1