uvm_fault(0xffffffff836190a8, 0xffff800013b0200c, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_direnter+0x23c: movl 0(%r15),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND * 30886 3221 0 0 0x4000000 1K syz-executor 400979 41225 0 0x14000 0x200 0 reaper ufs_direnter(fffffd8062c72e78,fffffd8062c726e0,ffff80002dd87c90,ffff80002dd88000,0) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_makeinode(2000,fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000) at ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1769 ufs_mknod(ffff80002dd87e70) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000,ffff80002dd87f00) at VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 domknodat(ffff80002ddef980,ffffff9c,20000080,2000,205b1a) at domknodat+0x47e sys/kern/vfs_syscalls.c:1624 syscall(ffff80002dd881a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002dd881a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee2bf26caf0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff836190a8, 0xffff800013b0200c, 0, 1) -> d ddb{1}> trace ufs_direnter(fffffd8062c72e78,fffffd8062c726e0,ffff80002dd87c90,ffff80002dd88000,0) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_makeinode(2000,fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000) at ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1769 ufs_mknod(ffff80002dd87e70) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000,ffff80002dd87f00) at VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 domknodat(ffff80002ddef980,ffffff9c,20000080,2000,205b1a) at domknodat+0x47e sys/kern/vfs_syscalls.c:1624 syscall(ffff80002dd881a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002dd881a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee2bf26caf0, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002dd87c80 rbx 0xfffffd80638e1aa8 rdx 0 rcx 0xffff80002ddef980 rax 0xffff800029b7bff0 r8 0xffffffffffffffff r9 0x1 r10 0x123df277bd3cf0b r11 0xf9acaad89ac19d46 r12 0xfffffd806adae500 r13 0xfffffd8062c726e0 r14 0x200 r15 0xffff800013b0200c rip 0xffffffff821dc58c ufs_direnter+0x23c cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002dd87bd0 ss 0 ufs_direnter+0x23c: movl 0(%r15),%r14d ddb{1}> show proc PROC (syz-executor) tid=30886 pid=3221 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002ddeef60,0xffffffff834fd8e0 process=0xffff8000ffff6458 user=0xffff80002dd83000, vmspace=0xfffffd806bf476e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21129 172458 73008 0 2 0 syz-executor 3221 54179 39343 0 2 0 syz-executor * 3221 30886 39343 0 7 0x4000000 syz-executor 23184 40574 62174 0 2 0 syz-executor 23184 491004 62174 0 3 0x4000080 fsleep syz-executor 93120 218775 67073 0 2 0 syz-executor 93120 343988 67073 0 3 0x4000080 fsleep syz-executor 93120 182924 67073 0 3 0x4000080 fsleep syz-executor 58748 443598 4765 0 2 0x490 syz-executor 58748 484899 4765 0 3 0x4000090 ttyout syz-executor 58748 39866 4765 0 3 0x4000090 fsleep syz-executor 58748 424011 4765 0 3 0x4000090 fsleep syz-executor 5432 505018 4735 0 2 0x480 syz-executor 5432 63028 4735 0 3 0x4000080 ttyin syz-executor 5432 130857 4735 0 3 0x4000080 fsleep syz-executor 5432 133387 4735 0 3 0x4000080 fsleep syz-executor 62174 354847 51682 0 2 0x482 syz-executor 80818 204932 51682 0 2 0x482 syz-executor 73008 267766 51682 0 2 0x482 syz-executor 4735 319857 51682 0 2 0x482 syz-executor 39343 350718 51682 0 2 0x482 syz-executor 49665 180169 51682 0 2 0x482 syz-executor 4765 46735 51682 0 2 0x482 syz-executor 67073 9452 51682 0 2 0x482 syz-executor 5669 226011 1 0 3 0x100083 ttyopn getty 3545 221338 0 0 3 0x14280 nfsidl nfsio 42085 183885 0 0 3 0x14280 nfsidl nfsio 11789 52318 0 0 3 0x14280 nfsidl nfsio 65091 393061 0 0 3 0x14280 nfsidl nfsio 24831 273958 0 0 3 0x14280 nfsidl nfsio 27680 115404 0 0 3 0x14280 nfsidl nfsio 86377 82861 0 0 3 0x14280 nfsidl nfsio 72880 89919 0 0 3 0x14280 nfsidl nfsio 23296 170435 0 0 3 0x14280 nfsidl nfsio 10929 285297 0 0 3 0x14280 nfsidl nfsio 27636 214108 0 0 3 0x14280 nfsidl nfsio 84794 240519 0 0 3 0x14280 nfsidl nfsio 45407 339932 0 0 3 0x14280 nfsidl nfsio 7947 520558 0 0 3 0x14280 nfsidl nfsio 76369 129826 0 0 3 0x14280 nfsidl nfsio 36957 1653 0 0 3 0x14280 nfsidl nfsio 54365 122436 0 0 3 0x14280 nfsidl nfsio 73724 189704 0 0 3 0x14280 nfsidl nfsio 38258 396748 0 0 3 0x14280 nfsidl nfsio 82339 213345 0 0 3 0x14280 nfsidl nfsio 97262 2885 0 0 3 0x14200 bored sosplice 51682 66945 21920 0 2 0x2 syz-executor 21920 104342 67641 0 3 0x10008a sigsusp ksh 67641 516111 80664 0 3 0x98 kqread sshd-session 80664 211356 1343 0 3 0x92 kqread sshd-session 1343 197825 1 0 3 0x88 kqread sshd 43739 465411 22895 74 3 0x1100092 bpf pflogd 22895 519330 1 0 3 0x80 sbwait pflogd 14969 282623 705 73 2 0x1100010 syslogd 705 144121 1 0 3 0x100082 sbwait syslogd 26085 488649 1 0 3 0x100080 kqread resolvd 93482 57376 2822 77 3 0x100092 kqread dhcpleased 17428 419073 2822 77 3 0x100092 kqread dhcpleased 2822 496172 1 0 3 0x80 kqread dhcpleased 9606 176123 0 0 2 0x14200 smr 75163 72792 0 0 2 0x14200 zerothread 91923 467252 0 0 3 0x14200 aiodoned aiodoned 58683 74417 0 0 3 0x14200 syncer update 77897 87024 0 0 3 0x14200 cleaner cleaner 41225 400979 0 0 7 0x14200 reaper 4717 332521 0 0 3 0x14200 pgdaemon pagedaemon 76063 218522 0 0 3 0x14200 bored viomb 59036 318937 0 0 3 0x40014200 acpi0 acpi0 59258 89756 0 0 3 0x40014200 idle1 6115 482924 0 0 3 0x14200 bored softnet3 32066 193894 0 0 3 0x14200 bored softnet2 99683 367024 0 0 3 0x14200 bored softnet1 94562 163491 0 0 2 0x14200 softnet0 20854 464153 0 0 3 0x14200 bored systqmp 56426 81617 0 0 3 0x14200 bored systq 62611 106468 0 0 2 0x14200 softclockmp 82255 375601 0 0 3 0x40014200 tmoslp softclock 25662 242665 0 0 3 0x40014200 idle0 1 277886 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 3221 (syz-executor) thread 0xffff80002ddef980 (30886) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8362f4e0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ufs_makeinode+0x4b2 sys/ufs/ufs/ufs_vnops.c:1765 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1624 #11 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80638e1e70) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1733 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1624 #11 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80638e1b40) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 14969 (syslogd) thread 0xffff8000ffffdbe8 (282623) exclusive rrwlock inode r = 0 (0xfffffd806e4dd1b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10241 10173K 10495K 166960K 12136 0 pcb 18 15K 16K 166960K 238 0 rtable 230 8K 8K 166960K 1636 0 pf 44 19K 25K 166960K 167 0 ifaddr 44 7K 8K 166960K 219 0 ifgroup 68 2K 2K 166960K 241 0 sysctl 2 0K 0K 166960K 2 0 counters 70 37K 37K 166960K 160 0 ioctlops 0 0K 4K 166960K 1599 0 iov 0 0K 16K 166960K 82 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1366 86K 86K 166960K 2292 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 26 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 17 61K 97K 166960K 1344 0 sigio 0 0K 0K 166960K 110 0 proc 72 91K 128K 166960K 1719 0 subproc 104 6K 6K 166960K 624 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 88 0 in_multi 93 6K 7K 166960K 570 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 958 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 241 73K 91K 166960K 11734 0 UVM aobj 18 3K 3K 166960K 26 0 pinsyscall 42 84K 106K 166960K 3487 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 32 0 NDP 16 0K 2K 166960K 158 0 temp 58 6819K 6890K 166960K 61305 0 kqueue 13 20K 30K 166960K 106 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 169 0 166 1 0 1 1 0 8 0 rtentry 112 570 0 465 5 1 4 4 0 8 0 unpcb 144 493 0 474 7 5 2 4 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 201 0 194 6 2 4 4 0 8 3 arp 120 101 0 84 1 0 1 1 0 8 0 inpcb 336 1034 0 1020 19 15 4 7 0 8 2 nd6 136 150 0 127 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 48 0 40 1 0 1 1 0 8 0 ppxss 1168 5 0 5 3 3 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 47 0 47 1 1 0 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 pfstitem 24 100 0 62 1 0 1 1 0 8 0 pfstkey 128 102 0 64 2 0 2 2 0 8 0 pfstate 376 101 0 63 4 0 4 4 0 8 0 pfrule 1344 35 0 22 3 1 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 2257 0 1825 32 3 29 29 0 8 0 art_table 32 2259 0 1825 4 0 4 4 0 8 0 art_node 16 569 0 475 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 7 1 0 1 1 0 8 0 semapl 112 23 0 13 1 0 1 1 0 8 0 shmpl 112 23 0 8 1 0 1 1 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 2718 0 1131 100 0 100 100 0 8 0 ffsino 272 2718 0 1131 107 0 107 107 0 8 0 nchpl 144 3799 0 2061 65 0 65 65 0 8 0 uvmvnodes 80 3590 0 0 74 0 74 74 0 8 0 vnodes 216 3590 0 0 200 0 200 200 0 8 0 namei 1024 15976 0 15975 5 4 1 2 0 8 0 percpumem 16 94 0 45 1 0 1 1 0 8 0 kstatmem 264 120 0 90 3 1 2 3 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 26050 0 26050 12 11 1 8 1 8 1 plimitpl 152 221 0 204 1 0 1 1 0 8 0 sigapl 424 1594 0 1523 10 1 9 9 0 8 0 futexpl 64 9445 0 9438 5 4 1 1 0 8 0 knotepl 120 442 0 0 12 0 12 12 0 8 0 kqueuepl 216 160 0 151 1 0 1 1 0 8 0 pipepl 320 329 0 301 6 0 6 6 0 8 3 fdescpl 496 1552 0 1521 8 3 5 6 0 8 0 filepl 152 6967 0 6708 25 12 13 13 0 8 2 lockfpl 104 229 0 226 1 0 1 1 0 8 0 lockfspl 48 101 0 98 1 0 1 1 0 8 0 sessionpl 144 67 0 58 1 0 1 1 0 8 0 pgrppl 48 124 0 107 1 0 1 1 0 8 0 ucredpl 104 878 0 864 1 0 1 1 0 8 0 zombiepl 144 1525 0 1523 1 0 1 1 0 8 0 processpl 1160 1594 0 1523 7 1 6 6 0 8 0 procpl 648 2631 0 2549 8 0 8 8 0 8 0 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 4 0 4 2 2 0 1 0 8 0 sockpl 664 1720 0 1685 22 16 6 9 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 240 0 0 30 0 30 30 0 8 0 mtagpl 96 11 0 0 1 0 1 1 0 8 0 mbufpl 256 453 0 0 26 0 26 26 0 8 0 bufpl 280 8123 0 1519 472 0 472 472 0 8 0 anonpl 24 268651 0 264919 78 27 51 75 0 185 21 amapchunkpl 152 36949 0 36441 40 10 30 38 0 158 8 amappl16 200 5204 0 5168 31 25 6 14 0 8 4 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 205 0 193 1 0 1 1 0 8 0 amappl13 176 39 0 39 2 2 0 1 0 8 0 amappl12 168 2842 0 2811 3 1 2 2 0 8 0 amappl11 160 91 0 77 1 0 1 1 0 8 0 amappl10 152 46 0 46 1 1 0 1 0 8 0 amappl9 144 197 0 197 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 198 0 186 1 0 1 1 0 8 0 amappl6 120 562 0 561 1 0 1 1 0 8 0 amappl5 112 297 0 286 1 0 1 1 0 8 0 amappl4 104 446 0 427 1 0 1 1 0 8 0 amappl3 96 6952 0 6837 5 1 4 4 0 8 0 amappl2 88 1284 0 1215 2 0 2 2 0 8 0 amappl1 80 14657 0 14084 16 1 15 15 0 8 0 amappl 88 10978 0 10800 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 2 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 25 0 8 1 0 1 1 0 8 0 uaddrrnd 24 1552 0 1521 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1552 0 1521 1 0 1 1 0 8 0 vmmpekpl 168 14084 0 14034 4 0 4 4 0 8 0 vmmpepl 168 102075 0 100179 111 25 86 99 0 357 1 vmsppl 440 1551 0 1520 6 2 4 5 0 8 0 rwobjpl 56 34985 0 30428 68 3 65 65 0 8 0 pdppl 4096 3111 0 3040 155 84 71 87 0 8 0 pvpl 32 32422 0 0 263 1 262 262 0 265 0 pmappl 248 1551 0 1520 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 499 0 117 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x44 sys/dev/kcov.c:164 uvn_detach(fffffd806d8e4700) at uvn_detach+0x28 sys/uvm/uvm_vnode.c:310 uvm_unmap_detach(ffff800029fe5cf0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806bf47c08) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bf47c08) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd87a0) at reaper+0x246 sys/kern/kern_exit.c:480 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x44 sys/dev/kcov.c:164 uvn_detach(fffffd806d8e4700) at uvn_detach+0x28 sys/uvm/uvm_vnode.c:310 uvm_unmap_detach(ffff800029fe5cf0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806bf47c08) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bf47c08) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd87a0) at reaper+0x246 sys/kern/kern_exit.c:480 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ufs_direnter+0x23c: movl 0(%r15),%r14d ufs_direnter(fffffd8062c72e78,fffffd8062c726e0,ffff80002dd87c90,ffff80002dd88000,0) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_makeinode(2000,fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000) at ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1769 ufs_mknod(ffff80002dd87e70) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000,ffff80002dd87f00) at VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 domknodat(ffff80002ddef980,ffffff9c,20000080,2000,205b1a) at domknodat+0x47e sys/kern/vfs_syscalls.c:1624 syscall(ffff80002dd881a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002dd881a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee2bf26caf0, count: 8 ddb{1}> trace ufs_direnter(fffffd8062c72e78,fffffd8062c726e0,ffff80002dd87c90,ffff80002dd88000,0) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_makeinode(2000,fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000) at ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1769 ufs_mknod(ffff80002dd87e70) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd8062c72e78,ffff80002dd87fd0,ffff80002dd88000,ffff80002dd87f00) at VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 domknodat(ffff80002ddef980,ffffff9c,20000080,2000,205b1a) at domknodat+0x47e sys/kern/vfs_syscalls.c:1624 syscall(ffff80002dd881a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002dd881a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee2bf26caf0, count: -7