uvm_fault(0xffffffff829e9398, 0xffff80001e8ff00c, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_direnter+0x2c2: movl 0(%r15),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 51415 55114 0 0 0 1 syz-executor.1 *127668 106 0 0 0x4000000 0K syz-executor.3 ufs_direnter(fffffd8063e06a20,fffffd806812b700,ffff80002e4a7f20,ffff80002e4a8250,fffffd8063c59c80) at ufs_direnter+0x2c2 sys/ufs/ufs/ufs_lookup.c:830 ufs_mkdir(ffff80002e4a80c0) at ufs_mkdir+0x708 sys/ufs/ufs/ufs_vnops.c:1239 VOP_MKDIR(fffffd8063e06a20,ffff80002e4a8220,ffff80002e4a8250,ffff80002e4a8150) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212b1a48,ffffff9c,20000040,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002e4a83d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4a83d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x54338af2190, count: 9 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(0xffffffff829e9398, 0xffff80001e8ff00c, 0, 1) -> d ddb{0}> trace ufs_direnter(fffffd8063e06a20,fffffd806812b700,ffff80002e4a7f20,ffff80002e4a8250,fffffd8063c59c80) at ufs_direnter+0x2c2 sys/ufs/ufs/ufs_lookup.c:830 ufs_mkdir(ffff80002e4a80c0) at ufs_mkdir+0x708 sys/ufs/ufs/ufs_vnops.c:1239 VOP_MKDIR(fffffd8063e06a20,ffff80002e4a8220,ffff80002e4a8250,ffff80002e4a8150) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212b1a48,ffffff9c,20000040,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002e4a83d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4a83d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x54338af2190, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002e4a7f10 rbx 0xfffffd806805bd00 rdx 0 rcx 0xfffffd8067806740 rax 0xffff8000212b1a48 r8 0xffffffffffffffff r9 0 r10 0xeb236e7c9d0d0b2f r11 0x7685e746b36b11cf r12 0 r13 0x10 r14 0xfffffd8063406890 r15 0xffff80001e8ff00c rip 0xffffffff8199d3d2 ufs_direnter+0x2c2 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e4a7e50 ss 0 ufs_direnter+0x2c2: movl 0(%r15),%ebx ddb{0}> show proc PROC (syz-executor.3) pid=127668 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000212b0008,0xffff8000212337b8 process=0xffff80002129b1f0 user=0xffff80002e4a3000, vmspace=0xfffffd80685fee88 estcpu=33, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 32564 214415 61469 0 2 0 syz-executor.6 55114 51415 93401 0 7 0 syz-executor.1 106 126813 84271 0 2 0 syz-executor.3 * 106 127668 84271 0 7 0x4000000 syz-executor.3 106 183392 84271 0 2 0x4000000 syz-executor.3 106 488676 84271 0 3 0x4000080 fsleep syz-executor.3 87516 411092 65104 0 2 0 syz-executor.4 87516 385541 65104 0 2 0x4000000 syz-executor.4 75235 154422 89169 0 2 0 syz-executor.2 75235 339575 89169 0 2 0x4000000 syz-executor.2 75235 377542 89169 0 3 0x4000080 fsleep syz-executor.2 17118 136641 7390 0 2 0 syz-executor.0 17118 219137 7390 0 2 0x4000000 syz-executor.0 17118 461108 7390 0 3 0x4000080 fsleep syz-executor.0 55150 96484 35670 0 2 0 syz-executor.5 73784 188019 37096 0 2 0 syz-executor.7 61469 54988 37357 0 2 0x2 syz-executor.6 84271 21908 37357 0 2 0x2 syz-executor.3 37096 259828 37357 0 3 0x82 nanoslp syz-executor.7 57591 186394 0 0 3 0x14200 acct acct 93401 504421 37357 0 3 0x82 nanoslp syz-executor.1 65104 75732 37357 0 3 0x82 nanoslp syz-executor.4 35670 333914 37357 0 3 0x82 nanoslp syz-executor.5 7390 155725 37357 0 3 0x82 nanoslp syz-executor.0 89169 493893 37357 0 3 0x82 nanoslp syz-executor.2 33364 121037 1 0 3 0x100083 ttyin getty 31010 462355 0 0 3 0x14280 nfsidl nfsio 75626 187918 0 0 3 0x14280 nfsidl nfsio 54701 370146 0 0 3 0x14280 nfsidl nfsio 52711 212797 0 0 3 0x14280 nfsidl nfsio 71521 513567 0 0 3 0x14280 nfsidl nfsio 53610 61745 0 0 3 0x14280 nfsidl nfsio 29685 330505 0 0 3 0x14280 nfsidl nfsio 34766 505032 0 0 3 0x14280 nfsidl nfsio 59857 137834 0 0 3 0x14280 nfsidl nfsio 10624 106494 0 0 3 0x14280 nfsidl nfsio 20038 49796 0 0 3 0x14280 nfsidl nfsio 90394 274422 0 0 3 0x14280 nfsidl nfsio 49675 413715 0 0 3 0x14280 nfsidl nfsio 44287 145825 0 0 3 0x14280 nfsidl nfsio 95942 95247 0 0 3 0x14280 nfsidl nfsio 91913 202692 0 0 3 0x14280 nfsidl nfsio 53810 212970 0 0 3 0x14280 nfsidl nfsio 71395 77098 0 0 3 0x14280 nfsidl nfsio 68717 29295 0 0 3 0x14280 nfsidl nfsio 83255 431399 0 0 3 0x14280 nfsidl nfsio 69681 297044 0 0 3 0x14200 bored sosplice 37357 167622 83129 0 3 0x82 thrsleep syz-fuzzer 37357 509140 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 487190 83129 0 3 0x4000082 wait syz-fuzzer 37357 435183 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 84400 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 487137 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 187837 83129 0 3 0x4000082 wait syz-fuzzer 37357 134439 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 442838 83129 0 3 0x4000082 wait syz-fuzzer 37357 429185 83129 0 3 0x4000082 thrsleep syz-fuzzer 37357 508671 83129 0 3 0x4000082 wait syz-fuzzer 37357 487979 83129 0 3 0x4000082 wait syz-fuzzer 37357 430055 83129 0 3 0x4000082 wait syz-fuzzer 37357 212955 83129 0 3 0x4000082 wait syz-fuzzer 37357 448440 83129 0 3 0x4000082 wait syz-fuzzer 37357 260879 83129 0 3 0x4000082 kqread syz-fuzzer 83129 47364 84725 0 3 0x10008a sigsusp ksh 84725 403007 94764 0 3 0x9a kqread sshd 94764 95464 1 0 3 0x88 kqread sshd 69520 97199 21724 74 3 0x1100092 bpf pflogd 21724 106465 1 0 3 0x80 netio pflogd 72841 70730 92679 73 3 0x1100090 kqread syslogd 92679 140824 1 0 3 0x100082 netio syslogd 96820 346733 1 0 3 0x100080 kqread resolvd 5396 66896 34227 77 3 0x100092 kqread dhcpleased 88229 42656 34227 77 3 0x100092 kqread dhcpleased 34227 127993 1 0 3 0x80 kqread dhcpleased 56105 111923 0 0 3 0x14200 bored smr 88177 242237 0 0 2 0x14200 zerothread 50514 66247 0 0 3 0x14200 aiodoned aiodoned 73093 374233 0 0 3 0x14200 syncer update 95854 197746 0 0 3 0x14200 cleaner cleaner 28845 338858 0 0 3 0x14200 reaper reaper 62300 77120 0 0 3 0x14200 pgdaemon pagedaemon 94652 229159 0 0 3 0x14200 bored viomb 29656 289838 0 0 3 0x40014200 acpi0 acpi0 84497 522291 0 0 3 0x40014200 idle1 23516 232642 0 0 3 0x14200 bored softnet 667 487326 0 0 3 0x14200 bored softnet 37028 199280 0 0 3 0x14200 bored softnet 16826 73401 0 0 3 0x14200 bored softnet 79506 57315 0 0 3 0x14200 bored systqmp 55652 263126 0 0 3 0x14200 bored systq 86789 68158 0 0 3 0x40014200 bored softclock 50985 49469 0 0 3 0x40014200 idle0 1 435294 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 106 (syz-executor.3) thread 0xffff8000212b1a48 (127668) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff829fa768) #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 VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640 #8 ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236 #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 (0xfffffd80763bdd68) #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+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #10 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8063406928) #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 10227 6499K 7426K 78643K 37437 0 pcb 13 14K 16K 78643K 1205 0 rtable 232 15K 16K 78643K 2838 0 ifaddr 176 39K 39K 78643K 1026 0 sysctl 2 0K 0K 78643K 4 0 counters 58 35K 36K 78643K 302 0 ioctlops 0 0K 8K 78643K 5636 0 iov 0 0K 40K 78643K 1318 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1470 92K 92K 78643K 9502 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 51 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1796 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 85K 78643K 8334 0 sigio 0 0K 0K 78643K 204 0 proc 72 91K 115K 78643K 1957 0 subproc 104 6K 6K 78643K 617 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 634 0 in_multi 84 5K 6K 78643K 713 0 ether_multi 1 0K 0K 78643K 50 0 mrt 1 0K 0K 78643K 41 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 187 837K 837K 78643K 187 0 exec 0 0K 2K 78643K 2651 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 448 615K 615K 78643K 53116 0 UVM aobj 96 3K 3K 78643K 117 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 218 0 NDP 16 0K 1K 78643K 228 0 temp 145 4734K 5759K 78643K 108336 0 kqueue 12 18K 28K 78643K 597 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 1557 0 1554 18 17 1 3 0 8 0 rtentry 112 687 0 598 4 1 3 4 0 8 0 unpcb 144 6783 0 6768 72 71 1 6 0 8 0 syncache 296 56 0 56 12 12 0 1 0 8 0 tcpqe 32 70 0 70 7 7 0 1 0 8 0 tcpcb 768 3269 0 3265 101 100 1 18 0 8 0 arp 120 106 0 90 1 0 1 1 0 8 0 inpcb 368 7520 0 7513 119 118 1 13 0 8 0 nd6 48 154 0 135 1 0 1 1 0 8 0 pkpcb 40 43 0 43 3 3 0 1 0 8 0 kcovpl 48 47 0 39 1 0 1 1 0 8 0 ppxss 1256 57 0 57 13 12 1 1 0 8 1 pfstscr 40 29 0 21 1 0 1 1 0 8 0 pffrag 232 63 0 62 4 3 1 1 0 482 0 pffrnode 88 63 0 62 4 3 1 1 0 8 0 pffrent 40 133 0 132 5 4 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 75 0 63 4 3 1 2 0 8 0 pfanchor 1280 553 16 41 44 1 43 43 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 78 0 68 1 0 1 1 0 8 0 pfstkey 120 106 0 100 2 0 2 2 0 8 0 pfstate 336 83 0 77 4 2 2 4 0 8 0 pfrule 1360 1037 0 766 25 2 23 23 0 8 0 rttmr 136 15 0 15 5 5 0 1 0 8 0 art_heap8 4096 7 0 6 6 5 1 3 0 8 0 art_heap4 256 3025 0 2603 47 19 28 30 0 8 0 art_table 32 3032 0 2609 4 0 4 4 0 8 0 art_node 16 682 0 604 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 16 1 0 1 1 0 8 0 semapl 112 1794 0 1784 1 0 1 1 0 8 0 shmpl 112 114 0 29 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12661 0 11180 93 0 93 93 0 8 0 ffsino 272 12661 0 11180 99 0 99 99 0 8 0 nchpl 144 23185 0 21533 63 0 63 63 0 8 0 rtmask 32 9 0 9 3 3 0 1 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 89106 0 89105 4 3 1 2 0 8 0 percpumem 16 163 0 122 1 0 1 1 0 8 0 vcpupl 2048 46 0 0 6 0 6 6 0 8 0 vmpool 568 57 0 11 5 1 4 4 0 8 0 pfiaddrpl 120 34 0 15 2 1 1 1 0 8 0 kstatmem 264 248 0 216 3 0 3 3 0 8 0 scsiplug 72 11 0 11 4 4 0 1 0 8 0 scxspl 216 78399 0 78399 21 20 1 8 0 8 1 plimitpl 152 969 0 953 1 0 1 1 0 8 0 sigapl 424 8603 0 8533 8 0 8 8 0 8 0 futexpl 64 77491 0 77488 1 0 1 1 0 8 0 knotepl 120 711 0 0 17 0 17 17 0 8 0 kqueuepl 216 1565 0 1557 31 30 1 5 0 8 0 pipepl 320 1352 0 1324 45 42 3 8 0 8 0 fdescpl 496 8544 0 8513 9 5 4 5 0 8 0 filepl 152 61060 0 60818 73 60 13 19 0 8 3 lockfpl 104 1998 0 1996 4 3 1 2 0 8 0 lockfspl 48 614 0 612 1 0 1 1 0 8 0 sessionpl 144 64 0 47 1 0 1 1 0 8 0 pgrppl 48 333 0 316 1 0 1 1 0 8 0 ucredpl 104 9721 0 9706 1 0 1 1 0 8 0 zombiepl 144 8533 0 8533 3 2 1 1 0 8 1 processpl 1064 8603 0 8533 5 0 5 5 0 8 0 procpl 672 25807 0 25714 17 8 9 10 0 8 0 srpgc 96 63 0 63 15 15 0 1 0 8 0 sosppl 168 20 0 20 5 5 0 1 0 8 0 sockpl 488 15911 0 15886 286 282 4 28 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 24 0 0 2 0 2 2 0 8 0 mcl8k 8192 42 0 0 5 2 3 3 0 8 0 mcl4k 4096 31 0 0 3 0 3 3 0 8 0 mcl2k2 2112 10 0 0 1 0 1 1 0 8 0 mcl2k 2048 413 0 0 50 11 39 50 0 8 0 mtagpl 96 577 0 0 12 0 12 12 0 8 0 mbufpl 256 3163 0 0 178 0 178 178 0 8 0 bufpl 288 15774 0 9435 454 0 454 454 0 8 0 anonpl 24 1686126 0 1668981 178 55 123 139 0 186 0 amapchunkpl 152 151515 0 150743 70 37 33 46 0 158 0 amappl16 200 22519 0 21926 83 47 36 44 0 8 0 amappl15 192 2482 0 2478 1 0 1 1 0 8 0 amappl14 184 2198 0 2186 1 0 1 1 0 8 0 amappl13 176 574 0 571 1 0 1 1 0 8 0 amappl12 168 325 0 322 2 1 1 1 0 8 0 amappl11 160 610 0 589 4 3 1 2 0 8 0 amappl10 152 426 0 422 1 0 1 1 0 8 0 amappl9 144 1716 0 1707 1 0 1 1 0 8 0 amappl8 136 3394 0 3291 4 0 4 4 0 8 0 amappl7 128 2321 0 2290 3 1 2 2 0 8 0 amappl6 120 1627 0 1608 2 1 1 2 0 8 0 amappl5 112 6586 0 6568 1 0 1 1 0 8 0 amappl4 104 3834 0 3792 2 0 2 2 0 8 0 amappl3 96 26306 0 26254 2 0 2 2 0 8 0 amappl2 88 8976 0 8907 3 1 2 3 0 8 0 amappl1 80 208882 0 208092 26 8 18 23 0 8 0 amappl 88 51802 0 51567 6 0 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 72 116 0 21 2 0 2 2 0 8 0 uaddrrnd 24 8602 0 8525 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8602 0 8525 1 0 1 1 0 8 0 vmmpekpl 168 73481 0 73415 4 0 4 4 0 8 0 vmmpepl 168 851185 0 848085 296 152 144 163 0 357 0 vmsppl 368 8601 0 8525 8 1 7 7 0 8 0 rwobjpl 56 218269 0 210371 124 11 113 116 0 8 0 pdppl 4096 17211 0 17096 555 440 115 115 0 8 0 pvpl 32 3555092 0 3533283 376 178 198 265 0 265 0 pmappl 248 8601 0 8525 6 1 5 5 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1681 0 617 32 1 31 31 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ufs_direnter(fffffd8063e06a20,fffffd806812b700,ffff80002e4a7f20,ffff80002e4a8250,fffffd8063c59c80) at ufs_direnter+0x2c2 sys/ufs/ufs/ufs_lookup.c:830 ufs_mkdir(ffff80002e4a80c0) at ufs_mkdir+0x708 sys/ufs/ufs/ufs_vnops.c:1239 VOP_MKDIR(fffffd8063e06a20,ffff80002e4a8220,ffff80002e4a8250,ffff80002e4a8150) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 domkdirat(ffff8000212b1a48,ffffff9c,20000040,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 syscall(ffff80002e4a83d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4a83d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x54338af2190, count: -6 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 __mp_lock(ffffffff829fa560) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829fa560) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002962a920) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] syscall(ffff80002962a920) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb560, count: 9 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 __mp_lock(ffffffff829fa560) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829fa560) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002962a920) at syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] syscall(ffff80002962a920) at syscall+0x41d sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb560, count: -6