uvm_fault(0xfffffd806c1f91f8, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *493460 59747 0 0 0x4000000 1K syz-executor 295199 78802 0 0x2 0x1 0 syz-executor ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a296a60,ffff80003c41bab0,ffff80003c41ba00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c41bab0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c41bab0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ecd4ec6e00, count: 10 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(0xfffffd806c1f91f8, 0xf, 0, 1) -> e ddb{1}> trace ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a296a60,ffff80003c41bab0,ffff80003c41ba00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c41bab0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c41bab0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ecd4ec6e00, count: -5 ddb{1}> show registers rdi 0xffff80002a296a60 rsi 0xffffffffffffffff rbp 0xffff80003c41b7d0 rbx 0xfffffd80097fb548 rdx 0 rcx 0xffff80002a296a60 rax 0xffff8000299ddff0 r8 0xfffffd80611a0b50 r9 0xfffffd80097fb548 r10 0x60428d1ba1488d3c r11 0xb52355ba89b763a9 r12 0xffff80002a296a60 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000112 __kernel_virt_to_phys+0x112 rip 0xffffffff82b8f148 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c41b750 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=493460 pid=59747 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=0xffff80002a296540,0xffff80002a2974b0 process=0xffff80003c41dd30 user=0xffff80003c416000, vmspace=0xfffffd806c1f91f8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96539 290149 55546 0 2 0 syz-executor 96539 401598 55546 0 2 0x4000000 syz-executor 97681 336812 66637 0 2 0 syz-executor 97681 10626 66637 0 3 0x4000080 fsleep syz-executor 90791 1229 38212 0 2 0 syz-executor 90791 468628 38212 0 3 0x4000080 kqsel syz-executor 90791 304820 38212 0 2 0x4000000 syz-executor 59747 447932 79782 0 2 0 syz-executor *59747 493460 79782 0 7 0x4000000 syz-executor 91047 123473 0 0 3 0x14200 bored sosplice 29137 228078 35209 0 3 0x2 biowait syz-executor 79782 75951 35209 0 3 0x82 nanoslp syz-executor 66637 10045 35209 0 3 0x82 nanoslp syz-executor 91338 239177 35209 0 3 0x82 nanoslp syz-executor 55546 454501 35209 0 3 0x82 nanoslp syz-executor 78802 295199 35209 0 7 0x3 syz-executor 38212 66215 35209 0 3 0x82 nanoslp syz-executor 44862 209585 35209 0 2 0x2 syz-executor 35209 49252 38731 0 2 0x2 syz-executor 38731 241120 59536 0 3 0x10008a sigsusp ksh 59536 470922 86989 0 3 0x98 kqread sshd-session 86989 185009 49576 0 3 0x92 kqread sshd-session 28272 337316 1 0 3 0x100083 ttyin getty 49576 15609 1 0 3 0x88 kqread sshd 93146 241909 64971 74 3 0x1100092 bpf pflogd 64971 308095 1 0 3 0x80 sbwait pflogd 5558 355469 5020 73 3 0x1100090 kqread syslogd 5020 238967 1 0 3 0x100082 sbwait syslogd 37409 305211 1 0 3 0x100080 kqread resolvd 86287 105045 69648 77 3 0x100092 kqread dhcpleased 83611 421170 69648 77 3 0x100092 kqread dhcpleased 69648 210853 1 0 3 0x80 kqread dhcpleased 58368 361166 0 0 3 0x14200 bored smr 66616 183335 0 0 2 0x14200 zerothread 79454 6129 0 0 3 0x14200 aiodoned aiodoned 69338 152999 0 0 3 0x14200 syncer update 94575 119409 0 0 3 0x14200 cleaner cleaner 75893 51910 0 0 3 0x14200 reaper reaper 27999 298729 0 0 3 0x14200 pgdaemon pagedaemon 68455 83622 0 0 3 0x14200 bored viomb 74831 113371 0 0 3 0x40014200 acpi0 acpi0 13802 521422 0 0 3 0x40014200 idle1 6545 115347 0 0 3 0x14200 bored softnet3 589 182301 0 0 3 0x14200 bored softnet2 28330 112662 0 0 3 0x14200 bored softnet1 65228 384752 0 0 3 0x14200 bored softnet0 5436 285126 0 0 3 0x14200 bored systqmp 97023 315808 0 0 3 0x14200 bored systq 10306 328697 0 0 3 0x14200 tmoslp softclockmp 80873 438197 0 0 3 0x40014200 tmoslp softclock 88229 57337 0 0 3 0x40014200 idle0 1 27830 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 59747 (syz-executor) thread 0xffff80002a296a60 (493460) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838cd700) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 biowait+0xc1 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e5 sys/kern/vfs_bio.c:754 #5 ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0xcb6 sys/ufs/ffs/ffs_inode.c:-1 #7 ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 #8 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:498 #9 vrele+0x129 sys/kern/vfs_subr.c:844 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x271 sys/kern/kern_ktrace.c:573 #12 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #12 doktrace+0x6dd sys/kern/kern_ktrace.c:517 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #14 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #15 Xsyscall+0x128 Process 29137 (syz-executor) thread 0xffff8000ffffd1f8 (228078) exclusive rrwlock inode r = 0 (0xfffffd806160c2e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5d1e60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #9 Xsyscall+0x128 Process 44862 (syz-executor) thread 0xffff80002a2ba538 (209585) exclusive rrwlock inode r = 0 (0xfffffd806160c880) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd 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+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d03e790) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11087K 11413K 166960K 11430 0 pcb 17 12K 12K 166960K 27 0 rtable 243 8K 8K 166960K 376 0 pf 34 17K 19K 166960K 55 0 ifaddr 43 7K 7K 166960K 53 0 ifgroup 55 2K 2K 166960K 68 0 sysctl 2 1K 9K 166960K 6 0 counters 68 36K 37K 166960K 88 0 ioctlops 0 0K 4K 166960K 1663 0 iov 0 0K 4K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1342 84K 85K 166960K 1429 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 217 0 sigio 0 0K 0K 166960K 4 0 proc 72 91K 140K 166960K 544 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6 0 in_multi 99 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 374 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 213 167K 177K 166960K 3724 0 UVM aobj 70 5K 5K 166960K 70 0 pinsyscall 40 80K 105K 166960K 1325 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 12 0K 2K 166960K 32 0 temp 36 8682K 8750K 166960K 6036 0 kqueue 13 20K 28K 166960K 43 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 74 0 71 2 0 2 2 0 8 1 rtentry 176 114 0 3 6 0 6 6 0 8 0 unpcb 144 135 0 118 4 0 4 4 0 8 3 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 23 0 19 1 0 1 1 0 8 0 arp 128 18 0 0 1 0 1 1 0 8 0 inpcb 328 107 0 99 1 0 1 1 0 8 0 nd6 144 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 8 0 8 1 0 1 1 0 8 1 pppxif 1504 2 0 2 1 0 1 1 0 8 1 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 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 384 18 0 0 2 0 2 2 0 8 0 pfrule 1344 22 0 16 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 461 0 6 29 0 29 29 0 8 0 art_table 32 462 0 6 4 0 4 4 0 8 0 art_node 16 112 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semapl 112 4 0 1 1 0 1 1 0 8 0 shmpl 112 67 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1711 0 200 95 0 95 95 0 8 0 ffsino 288 1711 0 200 109 0 109 109 0 8 0 nchpl 144 2014 0 327 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 1842 0 0 38 0 38 38 0 8 0 vnodes 216 1842 0 0 103 0 103 103 0 8 0 namei 1024 6507 0 6506 2 0 2 2 0 8 1 percpumem 16 59 0 10 1 0 1 1 0 8 0 kstatmem 264 34 0 8 3 0 3 3 0 8 1 scxspl 216 6783 0 6782 3 2 1 2 1 8 0 plimitpl 152 33 0 16 1 0 1 1 0 8 0 sigapl 424 525 0 477 7 0 7 7 0 8 1 knotepl 120 322 0 0 10 0 10 10 0 8 0 kqueuepl 224 51 0 41 1 0 1 1 0 8 0 pipepl 336 116 0 89 3 0 3 3 0 8 0 fdescpl 520 506 0 477 3 0 3 3 0 8 0 filepl 160 2194 0 1978 12 0 12 12 0 8 1 lockfpl 104 114 0 110 2 0 2 2 0 8 1 lockfspl 48 27 0 23 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 135 0 122 1 0 1 1 0 8 0 zombiepl 144 478 0 477 1 0 1 1 0 8 0 processpl 1240 525 0 477 5 0 5 5 0 8 0 procpl 656 679 0 626 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 728 382 0 354 9 0 9 9 0 8 6 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 130 0 0 9 0 9 9 0 8 0 bufpl 280 2661 0 122 182 0 182 182 0 8 0 anonpl 32 5406 0 0 44 0 44 44 0 246 0 amapchunkpl 152 10634 0 10105 25 0 25 25 0 158 0 amappl16 200 1726 0 1702 6 2 4 5 0 8 2 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 1160 0 1131 4 1 3 3 0 8 0 amappl11 160 52 0 37 1 0 1 1 0 8 0 amappl10 152 15 0 15 1 1 0 1 0 8 0 amappl9 144 257 0 257 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 113 0 101 1 0 1 1 0 8 0 amappl6 120 185 0 182 1 0 1 1 0 8 0 amappl5 112 117 0 108 1 0 1 1 0 8 0 amappl4 104 319 0 300 1 0 1 1 0 8 0 amappl3 96 1771 0 1679 5 1 4 4 0 8 0 amappl2 88 636 0 575 2 0 2 2 0 8 0 amappl1 80 8476 0 7878 14 0 14 14 0 8 1 amappl 88 3018 0 2878 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 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 69 0 0 2 0 2 2 0 8 0 uaddrrnd 24 506 0 477 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 506 0 477 1 0 1 1 0 8 0 vmmpekpl 168 5844 0 5806 2 0 2 2 0 8 0 vmmpepl 168 38167 0 36323 90 0 90 90 0 357 2 vmsppl 480 505 0 477 5 0 5 5 0 8 1 rwobjpl 72 14874 0 12075 52 0 52 52 0 8 0 pdppl 4096 1019 0 954 105 34 71 85 0 8 6 pvpl 32 12406 0 0 101 0 101 101 0 265 0 pmappl 256 505 0 477 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 386 0 36 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83806ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:149 intr_handler(ffff80002a33c110,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838cd4f8) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cd4f8) at __mp_lock+0x199 sys/kern/kern_lock.c:165 ktrsyscall(ffff80002a2bb728,63,18,ffff80002a33c3c0) at ktrsyscall+0x2b3 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff80002a2bb728,63,18,ffff80002a33c3c0) at ktrsyscall+0x2b3 sys/kern/kern_ktrace.c:183 syscall(ffff80002a33c3c0) at syscall+0x2e6 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a33c3c0) at syscall+0x2e6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78072378f170, count: 5 ddb{0}> trace x86_ipi_db(ffffffff83806ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:149 intr_handler(ffff80002a33c110,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838cd4f8) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cd4f8) at __mp_lock+0x199 sys/kern/kern_lock.c:165 ktrsyscall(ffff80002a2bb728,63,18,ffff80002a33c3c0) at ktrsyscall+0x2b3 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff80002a2bb728,63,18,ffff80002a33c3c0) at ktrsyscall+0x2b3 sys/kern/kern_ktrace.c:183 syscall(ffff80002a33c3c0) at syscall+0x2e6 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a33c3c0) at syscall+0x2e6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78072378f170, count: -10 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a296a60,ffff80003c41bab0,ffff80003c41ba00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c41bab0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c41bab0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ecd4ec6e00, count: 10 ddb{1}> trace ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a296a60,ffffffffffffffff,0,80000112,fffffd80611a0b50,fffffd80097fb548) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80611a0b50,4,112,0,ffff80002a296a60) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a296a60,ffff80003c41bab0,ffff80003c41ba00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c41bab0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c41bab0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ecd4ec6e00, count: -5