uvm_fault(0xfffffd806bf408e0, 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 *474676 26795 0 0 0x4000000 0K syz-executor ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000357996f0,ffff8000371b9f40,ffff8000371b9e90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000371b9f40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371b9f40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b600a19b10, 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(0xfffffd806bf408e0, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000357996f0,ffff8000371b9f40,ffff8000371b9e90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000371b9f40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371b9f40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b600a19b10, count: -5 ddb{0}> show registers rdi 0xffff8000357996f0 rsi 0xffffffffffffffff rbp 0xffff8000371b9c60 rbx 0xfffffd807f7d3478 rdx 0 rcx 0xffff8000357996f0 rax 0xffffffff834ecff0 cpu_info_full_primary+0x1ff0 r8 0xfffffd8068bd6538 r9 0xfffffd807f7d3478 r10 0x131586c5cafc06d6 r11 0x919903355e628524 r12 0xffff8000357996f0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000538 __kernel_virt_to_phys+0x538 rip 0xffffffff82c17b28 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000371b9be0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=474676 pid=26795 tcnt=3 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=0xffff8000357982b0,0xffff800035798ce0 process=0xffff80002d7731f0 user=0xffff8000371b4000, vmspace=0xfffffd806bf408e0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26795 266743 32468 0 2 0 syz-executor 26795 30119 32468 0 2 0x4000000 syz-executor *26795 474676 32468 0 7 0x4000000 syz-executor 83329 116313 40010 0 2 0 syz-executor 83329 463375 40010 0 3 0x4000080 kqread syz-executor 83329 470440 40010 0 3 0x4000080 fsleep syz-executor 29778 50289 80228 0 2 0 syz-executor 29778 150419 80228 0 3 0x4000080 fsleep syz-executor 48070 69023 1187 0 3 0x80 nanoslp syz-executor 48070 232808 1187 0 3 0x4000080 ttyopn syz-executor 48070 477783 1187 0 3 0x4000080 kqread syz-executor 48070 68072 1187 0 3 0x4000080 fsleep syz-executor 22770 165429 0 0 3 0x14200 acct acct 32468 459541 60113 0 3 0x82 nanoslp syz-executor 73806 444941 60113 0 2 0x2 syz-executor 80228 495675 60113 0 2 0x482 syz-executor 26487 58838 60113 0 2 0x2 syz-executor 11797 279157 60113 0 3 0x2 biowait syz-executor 1187 417415 60113 0 3 0x82 nanoslp syz-executor 40010 343725 60113 0 2 0x482 syz-executor 90594 160602 60113 0 2 0x2 syz-executor 60113 221421 38703 0 3 0x82 kqread syz-executor 38703 155191 51340 0 3 0x10008a sigsusp ksh 51340 180615 56491 0 3 0x98 kqread sshd-session 56491 208624 54684 0 3 0x92 kqread sshd-session 13669 67483 1 0 3 0x100083 ttyin getty 54684 171297 1 0 3 0x88 kqread sshd 54092 430523 83552 74 3 0x1100092 bpf pflogd 83552 271677 1 0 3 0x80 sbwait pflogd 78209 136681 35686 73 3 0x1100090 kqread syslogd 35686 247430 1 0 3 0x100082 sbwait syslogd 34276 6026 1 0 3 0x100080 kqread resolvd 20876 150227 87601 77 3 0x100092 kqread dhcpleased 89949 85294 87601 77 3 0x100092 kqread dhcpleased 87601 280657 1 0 3 0x80 kqread dhcpleased 89832 130356 0 0 3 0x14200 bored smr 35008 86032 0 0 2 0x14200 zerothread 75341 54 0 0 3 0x14200 aiodoned aiodoned 79859 101040 0 0 3 0x14200 syncer update 18303 384836 0 0 3 0x14200 cleaner cleaner 42297 51417 0 0 3 0x14200 reaper reaper 777 387329 0 0 3 0x14200 pgdaemon pagedaemon 27760 247549 0 0 3 0x14200 bored viomb 45225 441069 0 0 3 0x40014200 acpi0 acpi0 46150 142443 0 0 7 0x40014200 idle1 28903 355012 0 0 3 0x14200 bored softnet3 582 310761 0 0 3 0x14200 bored softnet2 83041 166712 0 0 3 0x14200 bored softnet1 2486 455734 0 0 2 0x14200 softnet0 39777 142522 0 0 3 0x14200 bored systqmp 7606 437158 0 0 3 0x14200 bored systq 58169 480759 0 0 3 0x14200 tmoslp softclockmp 71093 448606 0 0 2 0x40014200 softclock 55726 292050 0 0 3 0x40014200 idle0 1 286179 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 26795 (syz-executor) thread 0xffff8000357996f0 (474676) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8357b0c8) #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 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x21e sys/kern/kern_synch.c:416 #4 getblk+0x197 sys/kern/vfs_bio.c:1025 #5 bread+0x47 bio_doread sys/kern/vfs_bio.c:430 [inline] #5 bread+0x47 sys/kern/vfs_bio.c:475 #6 ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x2e2 sys/ufs/ufs/ufs_inode.c:95 #8 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #9 vrele+0x129 sys/kern/vfs_subr.c:829 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x271 sys/kern/kern_ktrace.c:564 #12 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x6dd sys/kern/kern_ktrace.c:508 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 #14 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #14 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 11797 (syz-executor) thread 0xffff8000ffff7970 (279157) exclusive rrwlock inode r = 0 (0xfffffd806f980d60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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_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:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cd8ce78) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 90594 (syz-executor) thread 0xffff800029fd9be0 (160602) exclusive rrwlock inode r = 0 (0xfffffd80605a1c58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 vget+0x2bd sys/kern/vfs_subr.c:678 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #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:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cd8c4e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10207 11382K 11390K 166960K 11615 0 pcb 17 12K 12K 166960K 46 0 rtable 219 6K 7K 166960K 371 0 pf 35 17K 18K 166960K 57 0 ifaddr 42 7K 7K 166960K 51 0 ifgroup 55 2K 2K 166960K 66 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 72 0 ioctlops 0 0K 4K 166960K 1498 0 iov 0 0K 12K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1432 90K 90K 166960K 1644 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 14 49K 93K 166960K 306 0 sigio 0 0K 0K 166960K 8 0 proc 72 91K 152K 166960K 546 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 24 0 in_multi 96 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 383 0 fusefs mount 1 32K 32K 166960K 1 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 219 72K 86K 166960K 4436 0 UVM aobj 8 4K 4K 166960K 9 0 pinsyscall 39 78K 106K 166960K 1390 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 7 0 NDP 12 0K 2K 166960K 32 0 temp 44 6816K 6882K 166960K 7886 0 kqueue 15 22K 30K 166960K 57 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 120 109 0 106 3 0 3 3 0 8 2 rtentry 112 113 0 12 4 0 4 4 0 8 0 unpcb 144 163 0 144 2 0 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 58 0 52 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 336 240 0 228 4 0 4 4 0 8 2 nd6 136 26 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 3 0 3 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 1 0 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 pfstitem 24 31 0 0 1 0 1 1 0 8 0 pfstkey 128 31 0 0 1 0 1 1 0 8 0 pfstate 376 30 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 457 0 41 29 0 29 29 0 8 1 art_table 32 458 0 41 4 0 4 4 0 8 0 art_node 16 112 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 8 0 2 1 0 1 1 0 8 0 shmpl 112 6 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1957 0 448 95 0 95 95 0 8 0 ffsino 272 1957 0 448 102 0 102 102 0 8 1 nchpl 144 2413 0 722 63 0 63 63 0 8 0 uvmvnodes 80 2207 0 0 46 0 46 46 0 8 0 vnodes 216 2207 0 0 123 0 123 123 0 8 0 namei 1024 7711 0 7710 2 0 2 2 0 8 1 percpumem 16 50 0 4 1 0 1 1 0 8 0 kstatmem 264 32 0 8 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7074 0 7073 9 1 8 8 1 8 7 plimitpl 152 75 0 58 1 0 1 1 0 8 0 sigapl 424 609 0 562 8 1 7 7 0 8 1 futexpl 64 2837 0 2834 1 0 1 1 0 8 0 knotepl 120 324 0 0 10 0 10 10 0 8 0 kqueuepl 216 139 0 128 5 0 5 5 0 8 4 pipepl 320 126 0 99 3 0 3 3 0 8 0 fdescpl 496 590 0 562 5 0 5 5 0 8 0 filepl 152 3070 0 2814 15 0 15 15 0 8 4 lockfpl 104 69 0 67 1 0 1 1 0 8 0 lockfspl 48 33 0 31 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 574 0 561 1 0 1 1 0 8 0 zombiepl 144 562 0 562 1 0 1 1 0 8 1 processpl 1160 609 0 562 5 0 5 5 0 8 1 procpl 648 891 0 836 7 1 6 6 0 8 0 sockpl 664 522 0 488 13 2 11 13 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 136 0 0 17 0 17 17 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 176 0 0 11 0 11 11 0 8 0 bufpl 280 2546 0 97 175 0 175 175 0 8 0 anonpl 24 149135 0 145869 47 1 46 46 0 185 22 amapchunkpl 152 14247 0 13803 26 0 26 26 0 158 5 amappl16 200 3855 0 3830 14 3 11 14 0 8 8 amappl15 192 14 0 14 2 2 0 1 0 8 0 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1237 0 1209 4 1 3 3 0 8 1 amappl11 160 58 0 44 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 137 0 137 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 130 0 117 1 0 1 1 0 8 0 amappl6 120 165 0 164 1 0 1 1 0 8 0 amappl5 112 134 0 123 1 0 1 1 0 8 0 amappl4 104 312 0 291 1 0 1 1 0 8 0 amappl3 96 2664 0 2577 3 0 3 3 0 8 0 amappl2 88 862 0 780 3 0 3 3 0 8 0 amappl1 80 8187 0 7622 14 0 14 14 0 8 1 amappl 88 4032 0 3876 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 2 1 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 8 0 1 1 0 1 1 0 8 0 uaddrrnd 24 590 0 562 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 590 0 562 1 0 1 1 0 8 0 vmmpekpl 168 6176 0 6138 3 0 3 3 0 8 0 vmmpepl 168 44162 0 42436 95 1 94 94 0 357 8 vmsppl 448 589 0 562 6 1 5 5 0 8 1 rwobjpl 56 18468 0 15333 45 0 45 45 0 8 0 pdppl 4096 1187 0 1124 103 32 71 85 0 8 8 pvpl 32 14010 0 0 113 0 113 113 0 265 0 pmappl 248 589 0 562 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 387 0 36 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000357996f0,ffffffffffffffff,0,80000538,fffffd8068bd6538,fffffd807f7d3478) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068bd6538,4,538,0,ffff8000357996f0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000357996f0,ffff8000371b9f40,ffff8000371b9e90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000371b9f40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371b9f40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5b600a19b10, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5