uvm_fault(0xfffffd806faeab98, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff8235d998 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003782d100 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff8235d998 Starting stack trace... panic(ffffffff833a2d08) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003782d050) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001481000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(21e5f,81,2000,ffff80002a2b67e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80002a2b67e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003782d200) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f02b3b8,81,fffffd80097fb820,ffff80002a2b67e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b877540,ffff80002a2b67e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b877540,ffff80002a2b67e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806b877540,ffff80002a2b67e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b877540,ffff80002a2b67e8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a2b67e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a2b67e8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a2b67e8,ffff80003782d570,ffff80003782d4c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003782d570) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003782d570) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cd8354cb0c0, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 17835 33867 -1 0x10 0 1 syz-executor 305103 42004 0 0x2 0 0 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734d7eb6eb50, count: 14 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806faeab98, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734d7eb6eb50, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c461350 rbx 0 rdx 0 rcx 0xffff80002a2b62b8 rax 0x2a r8 0xffff80003c461280 r9 0x1 r10 0x482cf19814457ad5 r11 0x58bf02555c57247 r12 0 r13 0xffffffff83016448 Xdoreti+0x18 r14 0 r15 0 rip 0xffffffff81c244c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c4612d0 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=17835 pid=33867 tcnt=2 stat=onproc flags process=10 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2b67e8,0xffff80002a2b7788 process=0xffff800036c249e0 user=0xffff80003c45c000, vmspace=0xfffffd806faea210 estcpu=36, cpticks=3, pctcpu=0.0, user=3, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *33867 17835 74338 -1 7 0x10 syz-executor 33867 297511 74338 -1 3 0x4000090 ttyout syz-executor 42004 305103 97498 0 7 0x2 syz-executor 79514 23785 0 0 3 0x14200 bored sosplice 52560 120019 1 0 3 0x100083 ttyin getty 74338 429870 97498 0 3 0x82 nanoslp syz-executor 24143 184938 97498 0 3 0x82 nanoslp syz-executor 72901 8740 97498 0 3 0x82 nanoslp syz-executor 9201 197980 97498 0 2 0x2 syz-executor 78718 118027 97498 0 3 0x82 nanoslp syz-executor 8486 360505 97498 0 3 0x2 biowait syz-executor 50996 24860 97498 0 3 0x82 nanoslp syz-executor 97498 346060 91768 0 2 0x2 syz-executor 91768 464006 88217 0 3 0x10008a sigsusp ksh 88217 318293 39698 0 3 0x98 kqread sshd-session 39698 482875 83787 0 3 0x92 kqread sshd-session 83787 258077 1 0 3 0x88 kqread sshd 14954 54499 42249 74 3 0x1100092 bpf pflogd 42249 217930 1 0 3 0x80 sbwait pflogd 77260 81040 88165 73 3 0x1100090 kqread syslogd 88165 344706 1 0 3 0x100082 sbwait syslogd 44187 507621 1 0 3 0x100080 kqread resolvd 56212 165406 91202 77 3 0x100092 kqread dhcpleased 49141 250808 91202 77 3 0x100092 kqread dhcpleased 91202 104405 1 0 3 0x80 kqread dhcpleased 35391 436233 0 0 3 0x14200 pause smr 39470 501028 0 0 2 0x14200 zerothread 75954 7536 0 0 3 0x14200 aiodoned aiodoned 98101 137976 0 0 3 0x14200 syncer update 60411 295355 0 0 3 0x14200 cleaner cleaner 68117 360013 0 0 2 0x14200 reaper 50546 29374 0 0 3 0x14200 pgdaemon pagedaemon 16550 497429 0 0 3 0x14200 bored viomb 66557 461439 0 0 3 0x40014200 acpi0 acpi0 32217 489855 0 0 3 0x40014200 idle1 18540 156542 0 0 3 0x14200 bored softnet7 10467 24522 0 0 3 0x14200 bored softnet6 50924 286038 0 0 3 0x14200 bored softnet5 58115 306554 0 0 3 0x14200 bored softnet4 47335 26863 0 0 3 0x14200 bored softnet3 53869 342604 0 0 3 0x14200 bored softnet2 62178 217838 0 0 3 0x14200 bored softnet1 90595 329459 0 0 3 0x14200 bored softnet0 53204 514089 0 0 2 0x40014200 systqmp 96378 62595 0 0 3 0x14200 bored systq 66804 505774 0 0 3 0x14200 tmoslp softclockmp 65007 32966 0 0 3 0x40014200 tmoslp softclock 94879 89141 0 0 3 0x40014200 idle0 1 416861 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff838ffc78) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #4 uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #8 exit1+0x6fc sys/kern/kern_exit.c:260 #9 sys_exit+0x1a sys/kern/kern_exit.c:-1 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 Process 42004 (syz-executor) thread 0xffff80003b4422c0 (305103) exclusive rrwlock inode r = 0 (0xfffffd806b760580) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 8486 (syz-executor) thread 0xffff80002a2b8fa8 (360505) exclusive rrwlock inode r = 0 (0xfffffd806e0c1378) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ba15c60) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10265 11183K 11811K 166960K 13338 0 pcb 17 14K 16K 166960K 257 0 rtable 202 11K 11K 166960K 394 0 pf 38 18K 25K 166960K 196 0 ifaddr 43 7K 8K 166960K 112 0 ifgroup 59 2K 3K 166960K 199 0 sysctl 3 1K 9K 166960K 14 0 counters 70 37K 38K 166960K 364 0 ioctlops 0 0K 8K 166960K 1754 0 iov 0 0K 16K 166960K 54 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1433 90K 90K 166960K 2493 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 72 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 13 45K 240K 166960K 1077 0 sigio 0 0K 0K 166960K 17 0 proc 72 115K 147K 166960K 621 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 116 0 in_multi 88 6K 7K 166960K 158 0 ether_multi 1 0K 0K 166960K 11 0 mrt 2 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 564 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 209 159K 174K 166960K 11452 0 UVM aobj 31 5K 5K 166960K 40 0 pinsyscall 38 76K 98K 166960K 2192 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 117 0 NDP 13 0K 2K 166960K 79 0 temp 64 8649K 8727K 166960K 57484 0 kqueue 13 20K 32K 166960K 202 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 92 0 89 1 0 1 1 0 8 0 rtentry 176 124 0 46 5 0 5 5 0 8 0 unpcb 144 675 0 658 7 5 2 4 0 8 1 syncache 336 6 0 6 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 475 0 469 8 7 1 7 0 8 0 arp 128 13 0 2 1 0 1 1 0 8 0 inpcb 328 1116 0 1106 12 10 2 7 0 8 0 nd6 144 21 0 4 1 0 1 1 0 8 0 pkpcb 40 10 0 10 2 2 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 5 0 5 2 2 0 1 0 8 0 ppxss 1192 131 0 131 3 2 1 1 0 8 1 pppxif 1504 72 0 72 3 3 0 1 0 8 0 pfstscr 40 7 0 6 3 2 1 1 0 8 0 pffrag 232 8 0 3 1 0 1 1 0 482 0 pffrnode 88 6 0 2 1 0 1 1 0 8 0 pffrent 40 12 0 7 1 0 1 1 0 8 0 pfosfp 40 1432 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1432 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pfstitem 24 81 0 25 1 0 1 1 0 8 0 pfstkey 128 87 0 31 2 0 2 2 0 8 0 pfstate 384 83 0 28 7 1 6 6 0 8 0 pfrule 1344 27 0 21 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 556 0 185 30 6 24 30 0 8 0 art_table 40 557 0 185 5 0 5 5 0 8 0 art_node 32 123 0 55 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 3 2 1 1 0 8 0 semapl 112 68 0 58 1 0 1 1 0 8 0 shmpl 112 37 0 9 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3445 0 1940 95 0 95 95 0 8 0 ffsino 296 3445 0 1940 117 0 117 117 0 8 0 nchpl 144 4966 0 3272 64 0 64 64 0 8 0 rtmask 32 17 0 17 3 2 1 1 0 8 1 uvmvnodes 80 4198 0 0 86 0 86 86 0 8 0 vnodes 216 4198 0 0 234 0 234 234 0 8 0 namei 1024 17740 0 17739 5 4 1 2 0 8 0 percpumem 16 197 0 147 1 0 1 1 0 8 0 kstatmem 264 126 0 96 3 0 3 3 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 30683 0 30682 14 11 3 8 1 8 2 plimitpl 152 256 0 239 1 0 1 1 0 8 0 sigapl 424 1374 0 1322 7 0 7 7 0 8 0 knotepl 120 550 0 0 17 0 17 17 0 8 0 kqueuepl 224 338 0 329 2 1 1 2 0 8 0 pipepl 344 290 0 262 6 3 3 6 0 8 0 fdescpl 528 1348 0 1321 3 0 3 3 0 8 0 filepl 160 9286 0 9063 24 11 13 18 0 8 2 lockfpl 104 459 0 457 1 0 1 1 0 8 0 lockfspl 48 202 0 200 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 1545 0 1530 1 0 1 1 0 8 0 zombiepl 144 1375 0 1371 2 1 1 1 0 8 0 processpl 1248 1374 0 1322 5 0 5 5 0 8 0 procpl 664 2989 0 2934 7 0 7 7 0 8 0 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 752 1920 0 1890 18 13 5 11 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 107 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 66 0 0 2 0 2 2 0 8 0 mbufpl 256 245 0 0 16 0 16 16 0 8 0 bufpl 280 12426 0 6283 439 0 439 439 0 8 0 anonpl 32 12345 0 0 101 1 100 100 0 246 0 amapchunkpl 152 39876 0 39441 53 19 34 34 0 158 9 amappl16 200 5290 0 5256 33 26 7 26 0 8 1 amappl15 192 2 0 2 2 2 0 1 0 8 0 amappl14 184 121 0 109 1 0 1 1 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 2010 0 1983 2 0 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 277 0 276 2 1 1 1 0 8 0 amappl8 136 39 0 36 1 0 1 1 0 8 0 amappl7 128 115 0 102 1 0 1 1 0 8 0 amappl6 120 190 0 187 1 0 1 1 0 8 0 amappl5 112 142 0 131 1 0 1 1 0 8 0 amappl4 104 310 0 291 1 0 1 1 0 8 0 amappl3 96 7630 0 7542 4 0 4 4 0 8 0 amappl2 88 685 0 622 2 0 2 2 0 8 0 amappl1 80 12711 0 12119 16 1 15 15 0 8 0 amappl 88 10578 0 10441 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 7 0 7 2 2 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 39 0 9 1 0 1 1 0 8 0 uaddrrnd 24 1348 0 1321 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1348 0 1321 1 0 1 1 0 8 0 vmmpekpl 168 12198 0 12150 3 0 3 3 0 8 0 vmmpepl 168 91747 0 89968 110 10 100 110 0 357 0 vmsppl 488 1347 0 1319 6 1 5 5 0 8 0 rwobjpl 80 30468 0 25326 106 0 106 106 0 8 0 pdppl 4096 2704 0 2638 102 30 72 82 0 8 6 pvpl 32 21022 0 0 170 0 170 170 0 265 0 pmappl 256 1347 0 1319 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 294 0 55 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839041b0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839041b0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839041b0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff838724b0,9) at pool_get+0x27e sys/kern/subr_pool.c:591 getnewvnode(1,ffff800000b4a800,ffffffff8369fda8,ffff80003c485070) at getnewvnode+0x13f sys/kern/vfs_subr.c:427 ffs_vget(ffff800000b4a800,caf9,ffff80003c4852b8) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ffs_inode_alloc(fffffd806b7604e0,41ed,fffffd80097fb820,ffff80003c4852b8) at ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff80003c485320) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d4e78c0,ffff80003c485480,ffff80003c4854b0,ffff80003c4853b0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003b4422c0,ffffff9c,714b348b7d20,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80003c485630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c485630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714b348b7dc0, count: 1 ddb{0}> trace x86_ipi_db(ffffffff837f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839041b0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839041b0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839041b0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff838724b0,9) at pool_get+0x27e sys/kern/subr_pool.c:591 getnewvnode(1,ffff800000b4a800,ffffffff8369fda8,ffff80003c485070) at getnewvnode+0x13f sys/kern/vfs_subr.c:427 ffs_vget(ffff800000b4a800,caf9,ffff80003c4852b8) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ffs_inode_alloc(fffffd806b7604e0,41ed,fffffd80097fb820,ffff80003c4852b8) at ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 ufs_mkdir(ffff80003c485320) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d4e78c0,ffff80003c485480,ffff80003c4854b0,ffff80003c4853b0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003b4422c0,ffffff9c,714b348b7d20,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80003c485630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c485630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x714b348b7dc0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734d7eb6eb50, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x734d7eb6eb50, count: -1