panic: vop_generipca_nbiac: dkoepr nStopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 261166 96485 32767 0x10 0 1 syz-executor.3 *479013 75452 32767 0x10 0 0 syz-executor.2 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279238a) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002e40b978) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8062386378,fffffd8065637398) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8065637398) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8065637398) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002e40bc10) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8069f5b480,ffff80002e40bd70,ffff80002e40bda0,ffff80002e40bca0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002128a2f0,ffffff9c,70ee6c5afbe0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002e40bf20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40bf20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70ee6c5afc50, 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 679 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279238a) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002e40b978) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8062386378,fffffd8065637398) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8065637398) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8065637398) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002e40bc10) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8069f5b480,ffff80002e40bd70,ffff80002e40bda0,ffff80002e40bca0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002128a2f0,ffffff9c,70ee6c5afbe0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002e40bf20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40bf20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70ee6c5afc50, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e40b8a0 rbx 0xffffffff82bb4b9f cpu_info_full_primary+0x2b9f rdx 0 rcx 0xffff80002128a2f0 rax 0xffffffff82bb3ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8721c6f719cac788 r11 0xd6a5e7887158d525 r12 0xffffffff82bb49a0 cpu_info_full_primary+0x29a0 r13 0 r14 0 r15 0x1 rip 0xffffffff81991f1c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002e40b890 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=479013 stat=onproc flags process=10 proc=0 pri=17, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff80002128a860,0xffff80002121e038 process=0xffff80002e41a5d0 user=0xffff80002e406000, vmspace=0xfffffd806f15c1d8 estcpu=36, cpticks=0, pctcpu=0.1 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96485 261166 13175 32767 7 0x10 syz-executor.3 1882 16300 11495 32767 2 0x10 syz-executor.5 47508 236222 901 32767 2 0x10 syz-executor.1 47508 355873 901 32767 3 0x4000090 fsleep syz-executor.1 55416 341629 4616 32767 2 0x10 syz-executor.4 55416 8925 4616 32767 2 0x4000010 syz-executor.4 86436 243400 41600 32767 2 0x10 syz-executor.0 86436 428022 41600 32767 2 0x4000010 syz-executor.0 *75452 479013 14471 32767 7 0x10 syz-executor.2 14471 142201 90395 0 3 0x82 wait syz-executor.2 35735 324239 28311 32767 2 0x10 syz-executor.7 28311 57215 90395 0 3 0x82 wait syz-executor.7 3722 61291 3713 32767 2 0x10 syz-executor.6 3713 192193 90395 0 3 0x82 wait syz-executor.6 13175 436349 56561 32767 2 0x10 syz-executor.3 56561 97495 90395 0 3 0x82 wait syz-executor.3 4616 335420 29243 32767 3 0x90 nanoslp syz-executor.4 29243 404104 90395 0 3 0x82 wait syz-executor.4 901 287714 37934 32767 3 0x90 nanoslp syz-executor.1 37934 452942 90395 0 3 0x82 wait syz-executor.1 41600 312393 94358 32767 3 0x90 nanoslp syz-executor.0 94358 5407 90395 0 3 0x82 wait syz-executor.0 11495 18239 60196 32767 3 0x90 nanoslp syz-executor.5 60196 346846 90395 0 3 0x82 wait syz-executor.5 29343 172199 0 0 3 0x14200 bored sosplice 90395 285738 36645 0 3 0x2000082 wait syz-fuzzer 90395 401967 36645 0 3 0x6000082 nanoslp syz-fuzzer 90395 131969 36645 0 3 0x6000082 wait syz-fuzzer 90395 516190 36645 0 3 0x6000082 wait syz-fuzzer 90395 385874 36645 0 3 0x6000082 thrsleep syz-fuzzer 90395 458107 36645 0 2 0x6000082 syz-fuzzer 90395 81612 36645 0 3 0x6000082 thrsleep syz-fuzzer 90395 52832 36645 0 3 0x6000082 wait syz-fuzzer 90395 302865 36645 0 3 0x6000082 thrsleep syz-fuzzer 90395 376985 36645 0 3 0x6000082 wait syz-fuzzer 90395 41209 36645 0 3 0x6000082 wait syz-fuzzer 90395 89260 36645 0 3 0x6000082 thrsleep syz-fuzzer 90395 19748 36645 0 3 0x6000082 thrsleep syz-fuzzer 90395 189031 36645 0 3 0x6000082 wait syz-fuzzer 90395 108798 36645 0 2 0x6000082 syz-fuzzer 90395 306020 36645 0 3 0x6000082 wait syz-fuzzer 36645 88945 59379 0 3 0x10008a sigsusp ksh 59379 315461 27095 0 2 0x9a sshd 90317 93245 1 0 3 0x100083 ttyin getty 27095 200830 1 0 3 0x88 kqread sshd 55438 78692 95826 73 3 0x1100090 kqread syslogd 95826 194630 1 0 3 0x100082 netio syslogd 70749 389708 1 0 3 0x100080 kqread resolvd 40798 306270 30724 77 3 0x100092 kqread dhcpleased 66475 56598 30724 77 3 0x100092 kqread dhcpleased 30724 92398 1 0 3 0x80 kqread dhcpleased 22623 494066 0 0 3 0x14200 bored smr 68275 319501 0 0 2 0x14200 zerothread 1817 118854 0 0 3 0x14200 aiodoned aiodoned 74098 28514 0 0 3 0x14200 syncer update 28181 78329 0 0 3 0x14200 cleaner cleaner 71579 105893 0 0 3 0x14200 reaper reaper 25674 178277 0 0 3 0x14200 pgdaemon pagedaemon 51054 82074 0 0 3 0x14200 bored viomb 33093 144741 0 0 3 0x40014200 acpi0 acpi0 89075 197888 0 0 3 0x40014200 idle1 33943 513542 0 0 3 0x14200 bored softnet3 65901 127684 0 0 3 0x14200 bored softnet2 97077 354218 0 0 3 0x14200 bored softnet1 86812 463742 0 0 3 0x14200 bored softnet0 97413 355841 0 0 3 0x14200 bored systqmp 26097 80637 0 0 3 0x14200 bored systq 57461 65924 0 0 3 0x40014200 bored softclock 93924 230917 0 0 3 0x40014200 idle0 1 112001 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 75452 (syz-executor.2) thread 0xffff80002128a2f0 (479013) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d88f50) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x4c6 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1278 #5 bwrite+0x21c sys/kern/vfs_bio.c:769 #6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113 #7 ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bd2f1a8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 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:1314 #8 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bd2f918) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 35735 (syz-executor.7) thread 0xffff8000212375f0 (324239) exclusive rrwlock inode r = 0 (0xfffffd80651a4d68) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c1a3c50) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10215 6412K 6420K 78643K 11535 0 pcb 13 20K 24K 78643K 21 0 rtable 244 6K 7K 78643K 3476 0 pf 29 8K 8K 78643K 189 0 ifaddr 44 16K 16K 78643K 372 0 ifgroup 50 2K 2K 78643K 370 0 sysctl 2 0K 2K 78643K 5 0 counters 60 35K 35K 78643K 220 0 ioctlops 0 0K 2K 78643K 558 0 iov 0 0K 28K 78643K 3697 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 7888 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 532 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 9378 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 125K 78643K 38527 0 sigio 0 0K 0K 78643K 810 0 proc 56 78K 115K 78643K 5795 0 subproc 104 6K 6K 78643K 1144 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 4214 0 in_multi 99 7K 7K 78643K 1266 0 ether_multi 1 0K 0K 78643K 37 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 1K 78643K 6383 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 507 91K 109K 78643K 378746 0 UVM aobj 131 4K 4K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1071 0 NDP 11 0K 2K 78643K 267 0 temp 74 5920K 6048K 78643K 96075 0 kqueue 13 20K 34K 78643K 11007 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 1584 0 1581 24 23 1 5 0 8 0 rtentry 112 1045 0 930 4 0 4 4 0 8 0 unpcb 144 20586 0 20573 261 260 1 10 0 8 0 syncache 296 494 0 494 74 74 0 1 0 8 0 tcpqe 32 408 0 408 63 63 0 1 0 8 0 tcpcb 808 14818 0 14810 469 464 5 23 0 8 3 arp 120 187 0 169 1 0 1 1 0 8 0 ipq 40 88 0 88 22 22 0 1 0 8 0 ipqe 40 305 0 305 22 22 0 1 0 8 0 inpcb 368 91482 0 91470 958 941 17 26 0 8 15 nd6 136 309 0 280 5 4 1 2 0 8 0 kcovpl 48 88 0 80 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4171 0 3704 40 10 30 32 0 8 0 art_table 32 4172 0 3704 6 2 4 5 0 8 0 art_node 16 1044 0 939 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 9369 0 9359 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 50739 0 49202 97 0 97 97 0 8 0 ffsino 272 50739 0 49202 103 0 103 103 0 8 0 nchpl 144 102013 0 100373 63 0 63 63 0 8 0 uvmvnodes 80 6160 0 0 126 0 126 126 0 8 0 vnodes 216 6160 0 0 343 0 343 343 0 8 0 namei 1024 327942 0 327940 12 11 1 2 0 8 0 percpumem 16 123 0 80 1 0 1 1 0 8 0 kstatmem 264 182 0 160 2 0 2 2 0 8 0 scxspl 216 317342 0 317342 132 129 3 8 1 8 3 plimitpl 152 5497 0 5474 47 45 2 2 0 8 1 sigapl 424 38658 0 38606 10 3 7 7 0 8 0 futexpl 64 343542 0 343541 13 12 1 1 0 8 0 knotepl 120 2204 0 0 21 4 17 18 0 8 0 kqueuepl 216 17196 0 17187 180 179 1 8 0 8 0 pipepl 320 7653 0 7625 224 216 8 14 0 8 5 fdescpl 496 38640 0 38606 7 2 5 6 0 8 0 filepl 152 268498 0 268262 480 461 19 23 0 8 8 lockfpl 104 12791 0 12789 4 3 1 2 0 8 0 lockfspl 48 3365 0 3363 1 0 1 1 0 8 0 sessionpl 144 103 0 87 1 0 1 1 0 8 0 pgrppl 48 646 0 630 1 0 1 1 0 8 0 ucredpl 104 32478 0 32460 1 0 1 1 0 8 0 zombiepl 144 38606 0 38606 1 0 1 1 0 8 1 processpl 1072 38658 0 38606 5 1 4 5 0 8 0 procpl 696 107438 0 107368 50 42 8 9 0 8 1 sosppl 168 16441 0 16439 14 13 1 2 0 8 0 sockpl 488 115056 0 115025 1917 1891 26 46 0 8 19 mcl64k 65536 63 0 0 5 2 3 3 0 8 0 mcl16k 16384 49 0 0 5 2 3 3 0 8 0 mcl12k 12288 45 0 0 2 0 2 2 0 8 0 mcl9k 9216 29 0 0 3 1 2 2 0 8 0 mcl8k 8192 81 0 0 4 1 3 4 0 8 0 mcl4k 4096 175 0 0 6 3 3 5 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 729 0 0 37 23 14 32 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 3461 0 0 107 2 105 105 0 8 0 bufpl 288 69518 0 63187 453 0 453 453 0 8 0 anonpl 24 3709701 0 3698219 319 222 97 119 0 186 0 amapchunkpl 152 1193557 0 1192726 238 201 37 49 0 158 0 amappl16 200 73160 0 72895 389 372 17 41 0 8 0 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 442 0 426 2 1 1 2 0 8 0 amappl13 176 36 0 35 1 0 1 1 0 8 0 amappl12 168 40462 0 40424 2 0 2 2 0 8 0 amappl11 160 58 0 46 1 0 1 1 0 8 0 amappl10 152 178 0 161 1 0 1 1 0 8 0 amappl9 144 543 0 542 1 0 1 1 0 8 0 amappl8 136 2276 0 1977 11 0 11 11 0 8 0 amappl7 128 299 0 282 2 0 2 2 0 8 0 amappl6 120 1217 0 1185 10 8 2 2 0 8 0 amappl5 112 1227 0 1219 1 0 1 1 0 8 0 amappl4 104 1996 0 1944 3 1 2 3 0 8 0 amappl3 96 233992 0 233908 8 5 3 4 0 8 0 amappl2 88 40357 0 40269 9 6 3 3 0 8 0 amappl1 80 147125 0 146594 24 11 13 22 0 8 0 amappl 88 376127 0 375883 7 0 7 7 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 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 38641 0 38607 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 38641 0 38607 1 0 1 1 0 8 0 vmmpekpl 168 290366 0 290316 3 0 3 3 0 8 0 vmmpepl 168 2241610 0 2239055 475 338 137 171 0 357 0 vmsppl 464 38640 0 38607 7 2 5 6 0 8 0 rwobjpl 56 540887 0 533048 128 16 112 114 0 8 0 pdppl 4096 77290 0 77214 1322 1240 82 96 0 8 6 pvpl 32 11035642 0 11017664 964 789 175 363 0 265 0 pmappl 248 38640 0 38607 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3625 0 2701 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279238a) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002e40b978) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8062386378,fffffd8065637398) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8065637398) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8065637398) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002e40bc10) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8069f5b480,ffff80002e40bd70,ffff80002e40bda0,ffff80002e40bca0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002128a2f0,ffffff9c,70ee6c5afbe0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002e40bf20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40bf20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70ee6c5afc50, count: -11 ddb{0}> machine ddbcpu 1