panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *297410 54426 32767 0x10 0x4000000 0K syz-executor.2 136119 91790 32767 0x10 0 1 syz-executor.6 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82655b40) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff80002130bce0,ffff80002e4b9318,ffff80002e4b9360) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff80002e4b93e0) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4b93e0) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57239504bf0, count: 8 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: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82655b40) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff80002130bce0,ffff80002e4b9318,ffff80002e4b9360) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff80002e4b93e0) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4b93e0) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57239504bf0, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e4b90e0 rbx 0xffffffff8295bb8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff80002130bce0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9576a9925ef7af73 r11 0xf4c98673a3839dcd r12 0xffffffff8295b990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff8105e868 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e4b90d0 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=297410 stat=onproc flags process=10 proc=4000000 pri=36, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff80002130aa80,0xffff80002130b510 process=0xffff800021298010 user=0xffff80002e4b4000, vmspace=0xfffffd8065fc8b98 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 67607 481215 74328 32767 2 0x10 syz-executor.5 33505 71894 93688 32767 2 0x10 syz-executor.1 68647 323671 74755 32767 2 0x10 syz-executor.7 54426 436546 93967 32767 3 0x90 nanoslp syz-executor.2 54426 407491 93967 32767 2 0x4000010 syz-executor.2 *54426 297410 93967 32767 7 0x4000010 syz-executor.2 54426 287164 93967 32767 3 0x4000090 fsleep syz-executor.2 53766 322833 76589 32767 2 0x10 syz-executor.0 200 354387 90480 32767 2 0x10 syz-executor.3 200 192283 90480 32767 2 0x4000010 syz-executor.3 74755 179389 34856 32767 2 0x490 syz-executor.7 34856 363280 7309 0 3 0x82 wait syz-executor.7 74328 243260 2113 32767 3 0x90 nanoslp syz-executor.5 2113 401693 7309 0 3 0x82 wait syz-executor.5 99812 433963 3838 32767 2 0x490 syz-executor.4 3838 20810 7309 0 3 0x82 wait syz-executor.4 90480 417018 88353 32767 2 0x490 syz-executor.3 88353 101105 7309 0 3 0x82 wait syz-executor.3 76589 108431 41888 32767 2 0x10 syz-executor.0 41888 155914 7309 0 3 0x82 wait syz-executor.0 31784 22488 0 0 3 0x14200 bored sosplice 91790 136119 56682 32767 7 0x10 syz-executor.6 93967 204508 7078 32767 3 0x90 nanoslp syz-executor.2 56682 34439 7309 0 3 0x82 wait syz-executor.6 7078 29341 7309 0 3 0x82 wait syz-executor.2 93688 207929 92222 32767 2 0x490 syz-executor.1 92222 278429 7309 0 3 0x82 wait syz-executor.1 7309 328073 77220 0 3 0x82 wait syz-fuzzer 7309 317918 77220 0 2 0x4000482 syz-fuzzer 7309 367850 77220 0 3 0x4000082 wait syz-fuzzer 7309 228128 77220 0 3 0x4000082 wait syz-fuzzer 7309 145375 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 281009 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 239957 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 257586 77220 0 3 0x4000082 wait syz-fuzzer 7309 64635 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 304715 77220 0 3 0x4000082 wait syz-fuzzer 7309 327354 77220 0 3 0x4000082 wait syz-fuzzer 7309 336340 77220 0 3 0x4000082 kqread syz-fuzzer 7309 52663 77220 0 3 0x4000082 wait syz-fuzzer 7309 455597 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 308680 77220 0 3 0x4000082 thrsleep syz-fuzzer 7309 443013 77220 0 3 0x4000082 wait syz-fuzzer 77220 459957 83514 0 3 0x10008a sigsusp ksh 83514 517495 95135 0 3 0x9a kqread sshd 9666 309805 1 0 3 0x100083 ttyin getty 95135 208956 1 0 3 0x88 kqread sshd 78386 439864 3044 73 3 0x1100090 kqread syslogd 3044 161001 1 0 3 0x100082 netio syslogd 74630 472478 1 0 3 0x100080 kqread resolvd 70015 204538 32312 77 3 0x100092 kqread dhcpleased 27745 47886 32312 77 3 0x100092 kqread dhcpleased 32312 413420 1 0 3 0x80 kqread dhcpleased 48846 312589 0 0 3 0x14200 bored smr 41046 177688 0 0 2 0x14200 zerothread 47370 307554 0 0 3 0x14200 aiodoned aiodoned 72043 180185 0 0 3 0x14200 syncer update 26876 347541 0 0 3 0x14200 cleaner cleaner 57649 315817 0 0 3 0x14200 reaper reaper 76058 322173 0 0 3 0x14200 pgdaemon pagedaemon 5329 1798 0 0 3 0x14200 bored viomb 5557 36276 0 0 3 0x40014200 acpi0 acpi0 28092 86326 0 0 3 0x40014200 idle1 87392 6959 0 0 3 0x14200 bored softnet 14982 99812 0 0 3 0x14200 bored softnet 65524 309193 0 0 3 0x14200 bored softnet 752 112139 0 0 3 0x14200 bored softnet 66568 19736 0 0 3 0x14200 bored systqmp 95508 18781 0 0 3 0x14200 bored systq 11964 40174 0 0 2 0x40014200 softclock 30404 510088 0 0 3 0x40014200 idle0 1 174696 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 54426 (syz-executor.2) thread 0xffff80002130bce0 (297410) shared rwlock vmmaplk r = 0 (0xfffffd8065fc8c40) #0 witness_lock+0x44d #1 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1610 #2 sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 #3 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82afba58) #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 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #6 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #7 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1590 #9 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:241 #10 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #11 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff829d2550) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:234 #3 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 Process 91790 (syz-executor.6) thread 0xffff8000ffff0d30 (136119) exclusive rrwlock inode r = 0 (0xfffffd8065c692c0) #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 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #10 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8065c695f0) #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+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 6413K 6420K 78643K 11342 0 pcb 13 16K 20K 78643K 19 0 rtable 240 6K 7K 78643K 1226 0 ifaddr 71 16K 16K 78643K 129 0 sysctl 2 0K 2K 78643K 4 0 counters 60 35K 35K 78643K 78 0 ioctlops 0 0K 2K 78643K 238 0 iov 0 0K 32K 78643K 2390 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1272 80K 80K 78643K 3383 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 177 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 11 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 117K 78643K 10492 0 sigio 0 0K 0K 78643K 437 0 proc 56 78K 103K 78643K 1395 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 1002 0 in_multi 99 6K 7K 78643K 334 0 ether_multi 1 0K 0K 78643K 24 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 247 1102K 1102K 78643K 247 0 exec 0 0K 1K 78643K 2461 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 444 94K 112K 78643K 76615 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 305 0 NDP 11 0K 2K 78643K 54 0 temp 124 4698K 4826K 78643K 28259 0 kqueue 12 18K 28K 78643K 988 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 120 932 0 929 10 9 1 3 0 8 0 rtentry 112 223 0 110 4 0 4 4 0 8 0 unpcb 144 12523 0 12508 94 90 4 7 0 8 3 syncache 296 112 0 112 18 18 0 1 0 8 0 tcpqe 32 156 0 156 13 13 0 1 0 8 0 tcpcb 776 5161 0 5151 152 144 8 15 0 8 6 arp 120 38 0 19 1 0 1 1 0 8 0 ipq 40 13 0 13 7 7 0 1 0 8 0 ipqe 40 74 0 74 7 7 0 1 0 8 0 inpcb 368 24928 0 24911 263 252 11 28 0 8 8 nd6 48 62 0 36 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 256 914 0 442 33 3 30 31 0 8 0 art_table 32 915 0 442 4 0 4 4 0 8 0 art_node 16 222 0 119 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 15527 0 14070 92 0 92 92 0 8 0 ffsino 272 15527 0 14070 98 0 98 98 0 8 0 nchpl 144 30080 0 28452 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 111197 0 111196 5 4 1 2 0 8 0 percpumem 16 51 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scxspl 216 103734 0 103734 43 40 3 7 0 8 3 plimitpl 152 2335 0 2312 24 23 1 2 0 8 0 sigapl 424 10767 0 10713 7 0 7 7 0 8 0 futexpl 64 99576 0 99575 5 4 1 1 0 8 0 knotepl 120 704 0 0 11 1 10 10 0 8 0 kqueuepl 216 3027 0 3019 52 51 1 5 0 8 0 pipepl 320 3437 0 3409 81 78 3 11 0 8 0 fdescpl 496 10749 0 10714 7 1 6 6 0 8 0 filepl 152 94665 0 94428 155 138 17 21 0 8 7 lockfpl 104 1928 0 1926 5 4 1 3 0 8 0 lockfspl 48 450 0 448 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 232 0 216 1 0 1 1 0 8 0 ucredpl 104 13548 0 13530 1 0 1 1 0 8 0 zombiepl 144 10714 0 10713 1 0 1 1 0 8 0 processpl 1072 10767 0 10713 4 0 4 4 0 8 0 procpl 672 31865 0 31792 25 17 8 9 0 8 0 sosppl 168 173 0 172 16 15 1 1 0 8 0 sockpl 488 38781 0 38746 701 687 14 41 0 8 8 mcl64k 65536 28 0 0 3 1 2 3 0 8 0 mcl16k 16384 33 0 0 4 1 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 20 0 0 3 0 3 3 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 407 0 0 38 10 28 38 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 4720 0 0 288 0 288 288 0 8 0 bufpl 288 22198 0 15870 453 0 453 453 0 8 0 anonpl 24 2349056 0 2335146 237 121 116 119 0 186 4 amapchunkpl 152 267233 0 266516 202 151 51 51 0 158 19 amappl16 200 28109 0 27662 246 214 32 38 0 8 8 amappl15 192 21 0 18 2 1 1 1 0 8 0 amappl14 184 169 0 156 1 0 1 1 0 8 0 amappl13 176 9 0 7 1 0 1 1 0 8 0 amappl12 168 513 0 508 1 0 1 1 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 45 0 35 1 0 1 1 0 8 0 amappl9 144 1076 0 1075 1 0 1 1 0 8 0 amappl8 136 718 0 550 6 0 6 6 0 8 0 amappl7 128 230 0 206 2 0 2 2 0 8 0 amappl6 120 398 0 379 1 0 1 1 0 8 0 amappl5 112 335 0 329 1 0 1 1 0 8 0 amappl4 104 941 0 912 1 0 1 1 0 8 0 amappl3 96 33350 0 33295 2 0 2 2 0 8 0 amappl2 88 11658 0 11577 3 1 2 3 0 8 0 amappl1 80 248622 0 247889 22 4 18 22 0 8 0 amappl 88 75448 0 75230 7 1 6 6 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 10749 0 10714 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10749 0 10714 1 0 1 1 0 8 0 vmmpekpl 168 96129 0 96070 4 0 4 4 0 8 0 vmmpepl 168 1002199 0 999206 286 133 153 155 0 357 10 vmsppl 368 10748 0 10714 4 0 4 4 0 8 0 rwobjpl 56 279644 0 271936 139 25 114 114 0 8 1 pdppl 4096 21505 0 21428 293 212 81 91 0 8 4 pvpl 32 4673885 0 4653723 547 335 212 256 0 265 19 pmappl 248 10748 0 10714 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1588 0 486 33 1 32 33 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(ffffffff82655b40) at panic+0x177 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1651 uvm_fault_unwire(fffffd8065fc8b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1611 sys_sysctl(ffff80002130bce0,ffff80002e4b9318,ffff80002e4b9360) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:255 syscall(ffff80002e4b93e0) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4b93e0) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57239504bf0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:144 __mp_acquire_count(ffffffff82afb850,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3bb sys/kern/sched_bsd.c:415 sleep_finish(ffff80002a649a80,1) at sleep_finish+0x180 sys/kern/kern_synch.c:417 tsleep(fffffd8067bb8da0,11,ffffffff82624a45,0) at tsleep+0x12c sys/kern/kern_synch.c:155 biowait(fffffd8067bb8da0) at biowait+0x91 sys/kern/vfs_bio.c:1268 bwrite(fffffd8067bb8da0) at bwrite+0x21b sys/kern/vfs_bio.c:769 VOP_BWRITE(fffffd8067bb8da0) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_direnter(fffffd807b8f7550,fffffd80688b72d0,ffff80002a649cb0,ffff80002a649fe0,fffffd8068df0b50) at ufs_direnter+0x8fa sys/ufs/ufs/ufs_lookup.c:909 ufs_mkdir(ffff80002a649e50) at ufs_mkdir+0x708 sys/ufs/ufs/ufs_vnops.c:1239 VOP_MKDIR(fffffd807b8f7550,ffff80002a649fb0,ffff80002a649fe0,ffff80002a649ee0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 end trace frame: 0xffff80002a64a080, count: 0 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:144 __mp_acquire_count(ffffffff82afb850,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3bb sys/kern/sched_bsd.c:415 sleep_finish(ffff80002a649a80,1) at sleep_finish+0x180 sys/kern/kern_synch.c:417 tsleep(fffffd8067bb8da0,11,ffffffff82624a45,0) at tsleep+0x12c sys/kern/kern_synch.c:155 biowait(fffffd8067bb8da0) at biowait+0x91 sys/kern/vfs_bio.c:1268 bwrite(fffffd8067bb8da0) at bwrite+0x21b sys/kern/vfs_bio.c:769 VOP_BWRITE(fffffd8067bb8da0) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 ufs_direnter(fffffd807b8f7550,fffffd80688b72d0,ffff80002a649cb0,ffff80002a649fe0,fffffd8068df0b50) at ufs_direnter+0x8fa sys/ufs/ufs/ufs_lookup.c:909 ufs_mkdir(ffff80002a649e50) at ufs_mkdir+0x708 sys/ufs/ufs/ufs_vnops.c:1239 VOP_MKDIR(fffffd807b8f7550,ffff80002a649fb0,ffff80002a649fe0,ffff80002a649ee0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000ffff0d30,ffffff9c,7f7ffffbf290,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002a64a160) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002a64a160) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbf300, count: -17