uvm_fault(0xfffffd806b01b988, 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 *341876 24793 0 0 0x4000000 0K syz-executor ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff0800,ffff80003c482ae0,ffff80003c482a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c482ae0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c482ae0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7942a3d69d0, 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(0xfffffd806b01b988, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff0800,ffff80003c482ae0,ffff80003c482a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c482ae0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c482ae0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7942a3d69d0, count: -5 ddb{0}> show registers rdi 0xffff80002a3d1000 rsi 0x1bc6 __ALIGN_SIZE+0xbc6 rbp 0xffff80003c482800 rbx 0xfffffd807f7d36e8 rdx 0xffff80002a3d1000 rcx 0x1bc5 __ALIGN_SIZE+0xbc5 rax 0xffffffff82a5c8d3 ktrops+0x43 r8 0xfffffd80694ab018 r9 0xfffffd807f7d36e8 r10 0xe1c4f7c34d460154 r11 0x13f01e2c7bb638e5 r12 0xffff8000ffff0800 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000b1c __kernel_virt_to_phys+0xb1c rip 0xffffffff82a5c8e8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c482780 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=341876 pid=24793 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=0xffff80002a2702b8,0xffff8000ffff0018 process=0xffff8000fffece60 user=0xffff80003c47d000, vmspace=0xfffffd806b01b988 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54796 218572 10023 0 2 0 syz-executor 24793 163486 11860 0 2 0 syz-executor *24793 341876 11860 0 7 0x4000000 syz-executor 89737 506383 71500 0 3 0x80 nanoslp syz-executor 89737 13194 71500 0 3 0x4000080 fsleep syz-executor 89737 63162 71500 0 3 0x4000080 pipewr syz-executor 77024 437191 52336 0 2 0 syz-executor 77024 500392 52336 0 2 0x4000000 syz-executor 65171 31028 97627 0 2 0 syz-executor 65171 273656 97627 0 3 0x4000080 lockf syz-executor 65171 326098 97627 0 3 0x4000080 fsleep syz-executor 65171 52184 97627 0 3 0x4000080 fsleep syz-executor 52364 500706 29161 0 2 0 syz-executor 52364 511463 29161 0 2 0x4000000 syz-executor 29161 18298 34420 0 3 0x82 nanoslp syz-executor 40728 3020 0 0 3 0x14200 bored sosplice 25790 149824 1 0 3 0x100083 ttyin getty 10023 406345 34420 0 2 0x2 syz-executor 48709 322802 34420 0 2 0x10000082 syz-executor 97627 245664 34420 0 3 0x82 nanoslp syz-executor 71500 340627 34420 0 3 0x82 nanoslp syz-executor 80053 466258 34420 0 2 0x2 syz-executor 52336 15162 34420 0 3 0x82 nanoslp syz-executor 11860 483234 34420 0 3 0x82 nanoslp syz-executor 34420 56919 24522 0 3 0x82 kqread syz-executor 24522 46428 49994 0 3 0x10008a sigsusp ksh 49994 196068 85283 0 3 0x98 kqread sshd-session 85283 519918 60600 0 3 0x92 kqread sshd-session 60600 425597 1 0 3 0x88 kqread sshd 36644 104577 3074 74 3 0x1100092 bpf pflogd 3074 144752 1 0 3 0x80 sbwait pflogd 24100 304346 44684 73 3 0x1100090 kqread syslogd 44684 286585 1 0 3 0x100082 sbwait syslogd 55967 256619 1 0 3 0x100080 kqread resolvd 98997 472136 33607 77 3 0x100092 kqread dhcpleased 44620 282015 33607 77 3 0x100092 kqread dhcpleased 33607 2551 1 0 3 0x80 kqread dhcpleased 72651 6112 0 0 3 0x14200 bored smr 13053 319708 0 0 2 0x14200 zerothread 64182 114491 0 0 3 0x14200 aiodoned aiodoned 66171 404272 0 0 3 0x14200 syncer update 70000 271859 0 0 3 0x14200 cleaner cleaner 9742 245842 0 0 3 0x14200 reaper reaper 87158 171433 0 0 3 0x14200 pgdaemon pagedaemon 7923 73308 0 0 3 0x14200 bored viomb 28240 489009 0 0 3 0x40014200 acpi0 acpi0 89695 64886 0 0 7 0x40014200 idle1 31902 28249 0 0 3 0x14200 bored softnet3 72679 87961 0 0 3 0x14200 bored softnet2 58503 322973 0 0 3 0x14200 bored softnet1 53939 213959 0 0 2 0x14200 softnet0 96367 411960 0 0 3 0x14200 bored systqmp 61651 196109 0 0 3 0x14200 bored systq 13818 336802 0 0 3 0x14200 tmoslp softclockmp 32334 110556 0 0 3 0x40014200 tmoslp softclock 2325 236709 0 0 3 0x40014200 idle0 1 5261 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 24793 (syz-executor) thread 0xffff8000ffff0800 (341876) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839c4c98) #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 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:498 #10 vrele+0x129 sys/kern/vfs_subr.c:844 #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:579 #16 Xsyscall+0x128 Process 77024 (syz-executor) thread 0xffff8000ffff0008 (500392) exclusive rrwlock inode r = 0 (0xfffffd806c527b00) #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+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: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 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 80053 (syz-executor) thread 0xffff80002a270d58 (466258) exclusive rrwlock inode r = 0 (0xfffffd806dd80540) #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+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: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: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:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c4aaf78) #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+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: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:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11101K 12502K 166960K 12875 0 pcb 17 14K 16K 166960K 181 0 rtable 217 7K 8K 166960K 428 0 pf 38 18K 21K 166960K 97 0 ifaddr 38 6K 7K 166960K 65 0 ifgroup 53 2K 2K 166960K 96 0 sysctl 3 1K 2K 166960K 4 0 counters 64 36K 37K 166960K 104 0 ioctlops 0 0K 4K 166960K 1578 0 iov 0 0K 16K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1458 92K 92K 166960K 2044 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 35 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 670 0 sigio 0 0K 0K 166960K 9 0 proc 72 91K 128K 166960K 633 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 83 0 in_multi 78 5K 7K 166960K 135 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 431 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 229 159K 169K 166960K 7552 0 UVM aobj 24 2K 2K 166960K 25 0 pinsyscall 41 82K 102K 166960K 1788 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 35 0 NDP 12 0K 1K 166960K 44 0 temp 50 8685K 8755K 166960K 20317 0 kqueue 13 20K 27K 166960K 109 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 75 0 72 1 0 1 1 0 8 0 rtentry 176 131 0 33 6 0 6 6 0 8 0 unpcb 144 465 0 446 6 3 3 4 0 8 2 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 251 0 246 12 4 8 8 0 8 7 arp 128 22 0 4 1 0 1 1 0 8 0 inpcb 384 688 0 678 8 0 8 8 0 8 6 nd6 144 30 0 9 1 0 1 1 0 8 0 pkpcb 40 37 0 37 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 1 1 1 0 8 1 ppxss 1192 15 0 14 1 0 1 1 0 8 0 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 7 0 4 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 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pfstitem 24 52 0 1 1 0 1 1 0 8 0 pfstkey 128 54 0 3 2 0 2 2 0 8 0 pfstate 384 53 0 2 6 0 6 6 0 8 0 pfrule 1344 27 0 20 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 511 0 134 29 1 28 29 0 8 4 art_table 32 513 0 134 4 0 4 4 0 8 0 art_node 16 128 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 7 2 1 1 1 0 8 1 semapl 112 33 0 23 1 0 1 1 0 8 0 shmpl 112 22 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2572 0 1068 96 0 96 96 0 8 0 ffsino 288 2572 0 1068 109 0 109 109 0 8 0 nchpl 144 3480 0 1787 64 1 63 64 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 3106 0 0 64 0 64 64 0 8 0 vnodes 216 3106 0 0 173 0 173 173 0 8 0 namei 1024 11854 0 11853 1 0 1 1 0 8 0 percpumem 16 67 0 20 1 0 1 1 0 8 0 kstatmem 264 52 0 28 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 10623 0 10623 10 7 3 8 1 8 3 plimitpl 152 167 0 150 1 0 1 1 0 8 0 sigapl 424 974 0 924 8 2 6 7 0 8 0 futexpl 64 8139 0 8136 1 0 1 1 0 8 0 knotepl 120 515 0 0 16 0 16 16 0 8 0 kqueuepl 224 183 0 172 2 0 2 2 0 8 1 pipepl 336 173 0 145 6 3 3 6 0 8 0 fdescpl 520 952 0 922 3 0 3 3 0 8 0 filepl 160 5526 0 5300 15 1 14 14 0 8 3 lockfpl 104 184 0 180 1 0 1 1 0 8 0 lockfspl 48 63 0 60 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 794 0 781 1 0 1 1 0 8 0 zombiepl 144 925 0 924 1 0 1 1 0 8 0 processpl 1216 974 0 924 5 0 5 5 0 8 0 procpl 680 1810 0 1752 7 1 6 6 0 8 0 srpgc 96 4 0 4 1 0 1 1 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 728 1272 0 1241 11 1 10 10 0 8 6 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 32 0 0 4 0 4 4 0 8 0 mtagpl 96 47 0 0 2 0 2 2 0 8 0 mbufpl 256 220 0 0 14 0 14 14 0 8 0 bufpl 280 3280 0 127 226 0 226 226 0 8 0 anonpl 32 7521 0 0 61 0 61 61 0 246 0 amapchunkpl 152 24053 0 23591 26 2 24 26 0 158 3 amappl16 200 2892 0 2861 18 10 8 15 0 8 5 amappl15 192 13 0 13 2 2 0 1 0 8 0 amappl14 184 112 0 100 1 0 1 1 0 8 0 amappl13 176 3 0 3 2 1 1 1 0 8 1 amappl12 168 1610 0 1581 3 1 2 2 0 8 0 amappl11 160 51 0 36 1 0 1 1 0 8 0 amappl10 152 17 0 17 1 1 0 1 0 8 0 amappl9 144 249 0 248 1 0 1 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 110 0 97 1 0 1 1 0 8 0 amappl6 120 205 0 202 1 0 1 1 0 8 0 amappl5 112 134 0 124 1 0 1 1 0 8 0 amappl4 104 321 0 301 1 0 1 1 0 8 0 amappl3 96 4834 0 4728 5 1 4 4 0 8 1 amappl2 88 652 0 589 2 0 2 2 0 8 0 amappl1 80 10556 0 9960 15 2 13 15 0 8 0 amappl 88 6749 0 6593 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 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 24 0 1 1 0 1 1 0 8 0 uaddrrnd 24 952 0 922 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 952 0 922 1 0 1 1 0 8 0 vmmpekpl 168 9169 0 9124 3 0 3 3 0 8 0 vmmpepl 168 64695 0 62780 98 3 95 98 0 357 6 vmsppl 480 951 0 922 6 1 5 5 0 8 0 rwobjpl 72 21993 0 17934 75 0 75 75 0 8 0 pdppl 4096 1911 0 1844 99 28 71 83 0 8 4 pvpl 32 13447 0 0 109 0 109 109 0 265 0 pmappl 256 951 0 922 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 409 0 41 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff0800,ffffffffffffffff,0,80000b1c,fffffd80694ab018,fffffd807f7d36e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80694ab018,4,b1c,0,ffff8000ffff0800) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff0800,ffff80003c482ae0,ffff80003c482a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c482ae0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c482ae0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7942a3d69d0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5