uvm_fault(0xfffffd806be603a8, 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 *316058 40597 0 0 0x4000000 0K syz-executor 277934 69077 0 0x14000 0x200 1 reaper ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000334abc68,ffff80002f09de70,ffff80002f09ddc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f09de70) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f09de70) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a521a8c40, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806be603a8, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000334abc68,ffff80002f09de70,ffff80002f09ddc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f09de70) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f09de70) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a521a8c40, count: -5 ddb{0}> show registers rdi 0xffff8000334abc68 rsi 0xffffffffffffffff rbp 0xffff80002f09db90 rbx 0xfffffd807f7d3618 rdx 0 rcx 0xffff8000334abc68 rax 0xffffffff8385eff0 cpu_info_full_primary+0x1ff0 r8 0xfffffd805d841da8 r9 0xfffffd807f7d3618 r10 0x6bc0d8b4586f9aae r11 0xdec0dc4015feb83f r12 0xffff8000334abc68 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000310 __kernel_virt_to_phys+0x310 rip 0xffffffff81c06e68 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002f09db10 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=316058 pid=40597 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800039cc14c0,0xffff8000334ab9e8 process=0xffff8000334ae048 user=0xffff80002f098000, vmspace=0xfffffd806be603a8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40597 311233 19063 0 2 0 syz-executor *40597 316058 19063 0 7 0x4000000 syz-executor 40597 62034 19063 0 2 0x4000000 syz-executor 40597 52934 19063 0 3 0x4000080 fsleep syz-executor 3221 88214 21887 0 2 0 syz-executor 3221 188187 21887 0 2 0x4000000 syz-executor 3221 346176 21887 0 3 0x4000080 fsleep syz-executor 12878 116225 3825 0 2 0x480 syz-executor 12878 302326 3825 0 3 0x4000080 ttyin syz-executor 12878 196254 3825 0 3 0x4000080 fsleep syz-executor 63855 246479 88412 0 2 0x480 syz-executor 63855 237091 88412 0 3 0x4000080 sbwait syz-executor 53298 13517 17869 -1 2 0x490 syz-executor 53298 150314 17869 -1 3 0x4000090 sbwait syz-executor 53298 104777 17869 -1 3 0x4000090 fsleep syz-executor 77165 21983 85326 0 2 0x480 syz-executor 77165 177994 85326 0 3 0x4000080 fifor syz-executor 66365 98976 0 0 2 0x14280 nfsio 19319 196332 0 0 2 0x14280 nfsio 76909 16654 0 0 2 0x14280 nfsio 41559 188788 0 0 2 0x14280 nfsio 15226 82839 0 0 2 0x14280 nfsio 9530 288998 0 0 2 0x14280 nfsio 37620 134506 0 0 2 0x14280 nfsio 75767 365663 0 0 2 0x14280 nfsio 67681 22701 0 0 2 0x14280 nfsio 17869 476453 4328 0 2 0x482 syz-executor 61947 301261 0 0 3 0x14200 bored sosplice 92244 265486 38123 0 3 0x100082 sbwait arp 38123 230107 95440 0 3 0x10008a sigsusp sh 3825 275495 4328 0 2 0x482 syz-executor 21887 47006 4328 0 2 0x482 syz-executor 88412 162841 4328 0 2 0x482 syz-executor 85326 235930 4328 0 2 0x482 syz-executor 19063 104090 4328 0 2 0x482 syz-executor 16909 20881 4328 0 2 0x2 syz-executor 95440 57627 4328 0 3 0x82 wait syz-executor 4328 441803 18429 0 3 0x82 kqread syz-executor 18429 200568 84597 0 3 0x10008a sigsusp ksh 84597 60562 9285 0 3 0x98 kqread sshd-session 9285 499356 45579 0 3 0x92 kqread sshd-session 2022 65581 1 0 3 0x100083 ttyin getty 45579 416685 1 0 3 0x88 kqread sshd 38815 453403 3116 74 3 0x1100092 bpf pflogd 3116 197353 1 0 3 0x80 sbwait pflogd 58114 195152 97567 73 2 0x1100010 syslogd 97567 240433 1 0 3 0x100082 sbwait syslogd 28525 224995 1 0 3 0x100080 kqread resolvd 56878 42059 1135 77 3 0x100092 kqread dhcpleased 19788 302520 1135 77 3 0x100092 kqread dhcpleased 1135 119327 1 0 3 0x80 kqread dhcpleased 41655 370496 0 0 3 0x14200 bored smr 4468 299076 0 0 3 0x14200 pgzero zerothread 30400 454004 0 0 3 0x14200 aiodoned aiodoned 10816 120213 0 0 3 0x14200 syncer update 78083 506967 0 0 3 0x14200 cleaner cleaner 69077 277934 0 0 7 0x14200 reaper 1773 444674 0 0 3 0x14200 pgdaemon pagedaemon 10951 136486 0 0 3 0x14200 bored viomb 14166 235497 0 0 3 0x40014200 acpi0 acpi0 77208 457494 0 0 3 0x40014200 idle1 91701 164658 0 0 3 0x14200 bored softnet3 32808 411898 0 0 3 0x14200 bored softnet2 62321 493264 0 0 3 0x14200 bored softnet1 82957 30271 0 0 3 0x14200 bored softnet0 16062 240976 0 0 3 0x14200 bored systqmp 64158 120491 0 0 3 0x14200 bored systq 40729 249388 0 0 3 0x14200 tmoslp softclockmp 23179 208074 0 0 2 0x40014200 softclock 68611 396242 0 0 3 0x40014200 idle0 1 272023 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 40597 (syz-executor) thread 0xffff8000334abc68 (316058) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ece70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 biowait+0xc1 sys/kern/vfs_bio.c:1246 #5 bwrite+0x2e5 sys/kern/vfs_bio.c:758 #6 ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 #7 ffs_truncate+0xcb6 sys/ufs/ffs/ffs_inode.c:-1 #8 ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 #9 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #10 vrele+0x129 sys/kern/vfs_subr.c:845 #11 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #12 ktrops+0x271 sys/kern/kern_ktrace.c:573 #13 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #13 doktrace+0x6dd sys/kern/kern_ktrace.c:517 #14 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #15 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 Process 16909 (syz-executor) thread 0xffff8000ffffc010 (20881) exclusive rrwlock inode r = 0 (0xfffffd806ac17ed8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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:1230 #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:3117 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ccc0df0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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:3102 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 58114 (syslogd) thread 0xffff8000ffffdc40 (195152) exclusive rrwlock inode r = 0 (0xfffffd806e1ae3f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2944 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 11029K 11280K 166960K 11696 0 pcb 17 14K 16K 166960K 225 0 rtable 200 8K 8K 166960K 435 0 pf 35 17K 21K 166960K 80 0 ifaddr 40 6K 7K 166960K 58 0 ifgroup 55 2K 2K 166960K 78 0 sysctl 3 1K 2K 166960K 4 0 counters 64 36K 36K 166960K 222 0 ioctlops 0 0K 4K 166960K 1692 0 iov 2 2K 16K 166960K 24 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1347 85K 85K 166960K 1734 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 10 0 dirhash 12 2K 3K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 560 0 sigio 0 0K 0K 166960K 3 0 proc 72 91K 128K 166960K 596 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 127 0 in_multi 84 6K 6K 166960K 115 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 464 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 166K 176K 166960K 7003 0 UVM aobj 10 2K 4K 166960K 18 0 pinsyscall 44 88K 108K 166960K 1705 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 21 0 NDP 12 0K 1K 166960K 36 0 temp 49 8685K 8749K 166960K 20952 0 kqueue 14 22K 30K 166960K 129 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 55 0 51 1 0 1 1 0 8 0 rtentry 168 132 0 45 5 0 5 5 0 8 0 unpcb 144 386 0 363 4 2 2 4 0 8 1 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpcb 808 201 0 195 11 2 9 11 0 8 8 arp 120 22 0 6 1 0 1 1 0 8 0 inpcb 376 617 0 604 11 1 10 11 0 8 8 nd6 136 28 0 7 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 76 0 76 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 2 1 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 3 0 2 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 45 0 3 1 0 1 1 0 8 0 pfstkey 128 45 0 3 2 0 2 2 0 8 0 pfstate 376 45 0 3 5 0 5 5 0 8 0 pfrule 1344 27 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 541 0 118 28 0 28 28 0 8 0 art_table 32 543 0 118 4 0 4 4 0 8 0 art_node 16 129 0 51 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 8 0 2 1 0 1 1 0 8 0 shmpl 112 15 0 8 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2389 0 881 95 0 95 95 0 8 0 ffsino 280 2389 0 881 109 0 109 109 0 8 0 nchpl 144 3159 0 1468 63 0 63 63 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 uvmvnodes 80 2666 0 0 55 0 55 55 0 8 0 vnodes 216 2666 0 0 149 0 149 149 0 8 0 namei 1024 11303 0 11302 2 0 2 2 0 8 1 percpumem 16 125 0 79 1 0 1 1 0 8 0 kstatmem 264 40 0 16 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 10016 0 10016 11 7 4 8 1 8 4 plimitpl 152 114 0 97 1 0 1 1 0 8 0 sigapl 424 891 0 830 10 1 9 9 0 8 0 futexpl 64 6206 0 6202 1 0 1 1 0 8 0 knotepl 120 653 0 0 20 0 20 20 0 8 0 kqueuepl 216 195 0 184 3 2 1 3 0 8 0 pipepl 328 135 0 108 3 0 3 3 0 8 0 fdescpl 504 852 0 820 5 0 5 5 0 8 0 filepl 152 4745 0 4515 17 0 17 17 0 8 5 lockfpl 104 144 0 141 1 0 1 1 0 8 0 lockfspl 48 62 0 59 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 654 0 640 1 0 1 1 0 8 0 zombiepl 144 831 0 830 1 0 1 1 0 8 0 processpl 1176 891 0 830 6 0 6 6 0 8 0 procpl 656 1579 0 1507 9 1 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 688 1066 0 1027 18 7 11 16 0 8 7 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 13 0 0 1 0 1 1 0 8 0 mbufpl 256 228 0 0 15 0 15 15 0 8 0 bufpl 280 3206 0 124 221 0 221 221 0 8 0 anonpl 24 145289 0 135176 70 2 68 68 0 184 5 amapchunkpl 152 21603 0 21026 29 0 29 29 0 158 6 amappl16 200 2881 0 2456 26 3 23 23 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 131 0 118 1 0 1 1 0 8 0 amappl13 176 11 0 11 2 2 0 1 0 8 0 amappl12 168 1521 0 1488 4 2 2 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 321 0 320 1 0 1 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 111 0 97 1 0 1 1 0 8 0 amappl6 120 199 0 194 1 0 1 1 0 8 0 amappl5 112 124 0 115 1 0 1 1 0 8 0 amappl4 104 333 0 311 1 0 1 1 0 8 0 amappl3 96 4133 0 4015 5 1 4 4 0 8 0 amappl2 88 679 0 612 2 0 2 2 0 8 0 amappl1 80 10546 0 9916 16 1 15 15 0 8 0 amappl 88 6182 0 6013 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 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 17 0 8 1 0 1 1 0 8 0 uaddrrnd 24 852 0 820 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 852 0 820 1 0 1 1 0 8 0 vmmpekpl 168 8482 0 8431 3 0 3 3 0 8 0 vmmpepl 168 60136 0 57709 108 2 106 106 0 357 0 vmsppl 456 851 0 820 5 0 5 5 0 8 0 rwobjpl 64 21025 0 16967 66 0 66 66 0 8 0 pdppl 4096 1712 0 1640 102 26 76 86 0 8 4 pvpl 32 18448 0 0 149 0 149 149 0 265 0 pmappl 248 851 0 820 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 290 0 31 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000334abc68,ffffffffffffffff,0,80000310,fffffd805d841da8,fffffd807f7d3618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805d841da8,4,310,0,ffff8000334abc68) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000334abc68,ffff80002f09de70,ffff80002f09ddc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f09de70) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f09de70) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a521a8c40, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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(ffffffff838ecc68) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ecc68) at __mp_lock+0x199 sys/kern/kern_lock.c:144 reaper(ffff80002a2f87b8) at reaper+0x24b sys/kern/kern_exit.c:479 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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(ffffffff838ecc68) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ecc68) at __mp_lock+0x199 sys/kern/kern_lock.c:144 reaper(ffff80002a2f87b8) at reaper+0x24b sys/kern/kern_exit.c:479 end trace frame: 0x0, count: -5