kernel: protection fault trap, code=0 Stopped at lf_advlock+0x2f7: incl 0x28(%r12) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace lf_advlock(ffff80000153d8a0,0,ffff800033bea218,2,ffff800038401090,40) at lf_advlock+0x2f7 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff80000153d8a0,0,ffff800033bea218,2,ffff800038401090,40) at lf_advlock+0x2f7 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd805a68c7e0,ffff800033bea218,2,ffff800038401090,40) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 closef(fffffd806cc5d158,ffff80002a297210) at closef+0x140 sys/kern/kern_descrip.c:-1 fdfree(ffff80002a297210) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a297210,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a297210,ffff8000384012d0,ffff800038401220) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000384012d0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000384012d0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c523a9134d0, count: -8 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800038400fe0 rbx 0 rdx 0 rcx 0xffff80002a297210 rax 0xffffffff83805ff0 cpu_info_full_primary+0x1ff0 r8 0xa0 r9 0 r10 0x60393d8958565e5d r11 0x62b3f58ffe74f2b r12 0xdeafbeaddeafbead r13 0x2 r14 0xffff80000153d8a0 r15 0xffffffffffffffff rip 0xffffffff81bdb6e7 lf_advlock+0x2f7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038400f50 ss 0x10 lf_advlock+0x2f7: incl 0x28(%r12) ddb{0}> show proc PROC (syz-executor) tid=148504 pid=85539 tcnt=0 stat=onproc flags process=1018 proc=2000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a297210 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000ffffd488,0xffff8000ffff3c50 process=0xffff800033bee6e0 user=0xffff8000383fc000, vmspace=0xfffffd806b3235d8 estcpu=34, cpticks=1, pctcpu=0.11, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 881 93465 83696 0 2 0 syz-executor 881 382307 83696 0 3 0x4000080 fifor syz-executor 881 479867 83696 0 3 0x4000080 fsleep syz-executor 881 300153 83696 0 2 0x4000000 syz-executor 87188 446459 59262 0 3 0x80 nanoslp syz-executor 87188 267394 59262 0 3 0x4000080 ttyin syz-executor 87188 471066 59262 0 3 0x4000080 fsleep syz-executor 87188 356186 59262 0 3 0x4000080 fsleep syz-executor 81600 467546 40676 0 3 0x80 nanoslp syz-executor 81600 200120 40676 0 2 0x4000000 syz-executor 81600 437088 40676 0 3 0x4000000 inode syz-executor 81600 475009 40676 0 3 0x4000080 fsleep syz-executor 81600 388685 40676 0 3 0x4000000 inode syz-executor 39017 277734 60653 0 3 0x90 nanoslp syz-executor 39017 346140 60653 0 2 0x4000010 syz-executor 39017 250966 60653 0 3 0x4000090 fsleep syz-executor 60653 76987 12042 0 3 0x82 nanoslp syz-executor 82887 480462 0 0 3 0x14200 acct acct 40676 506957 12042 0 3 0x82 nanoslp syz-executor 88793 265691 12042 0 3 0x82 nanoslp syz-executor 35414 142712 12042 0 2 0x2 syz-executor 61027 257106 1 0 3 0x100083 ttyin getty 89326 443734 0 0 3 0x14200 bored sosplice 83696 149986 12042 0 3 0x82 nanoslp syz-executor 29829 471584 12042 0 3 0x2 lockflk syz-executor 79315 269333 12042 0 3 0x82 nanoslp syz-executor 59262 352765 12042 0 3 0x82 nanoslp syz-executor 12042 137055 48885 0 3 0x82 kqread syz-executor 48885 459801 3141 0 3 0x10008a sigsusp ksh 3141 188435 27906 0 3 0x98 kqread sshd-session 27906 368280 42898 0 3 0x92 kqread sshd-session 42898 232814 1 0 3 0x88 kqread sshd 52144 519340 6512 74 3 0x1100092 bpf pflogd 6512 377156 1 0 3 0x80 sbwait pflogd 19177 439524 15186 73 3 0x1100090 kqread syslogd 15186 489091 1 0 3 0x100082 sbwait syslogd 65786 374561 1 0 3 0x100080 kqread resolvd 24063 512683 7389 77 3 0x100092 kqread dhcpleased 99654 15749 7389 77 3 0x100092 kqread dhcpleased 7389 404952 1 0 3 0x80 kqread dhcpleased 60171 361006 0 0 3 0x14200 bored smr 33684 510006 0 0 2 0x14200 zerothread 9123 80306 0 0 3 0x14200 aiodoned aiodoned 80122 293174 0 0 3 0x14200 syncer update 62760 287634 0 0 3 0x14200 cleaner cleaner 66981 401497 0 0 2 0x14200 reaper 35925 277598 0 0 3 0x14200 pgdaemon pagedaemon 15172 391614 0 0 3 0x14200 bored viomb 31486 460583 0 0 3 0x40014200 acpi0 acpi0 21553 514263 0 0 7 0x40014200 idle1 94474 515662 0 0 3 0x14200 bored softnet3 22065 277959 0 0 3 0x14200 bored softnet2 8620 116779 0 0 3 0x14200 bored softnet1 94280 151051 0 0 3 0x14200 bored softnet0 98805 370992 0 0 3 0x14200 bored systqmp 60706 53817 0 0 3 0x14200 bored systq 865 26316 0 0 3 0x14200 tmoslp softclockmp 17588 262474 0 0 3 0x40014200 tmoslp softclock 92595 272356 0 0 3 0x40014200 idle0 1 164674 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 81600 (syz-executor) thread 0xffff80003c46b228 (200120) exclusive rrwlock inode r = 0 (0xfffffd800b5a4f48) #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 ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 #7 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #8 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #9 namei+0x7aa sys/kern/vfs_lookup.c:250 #10 vn_open+0x13f sys/kern/vfs_vnops.c:140 #11 doopenat+0x32e sys/kern/vfs_syscalls.c:1137 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 Process 81600 (syz-executor) thread 0xffff80002a2967d0 (437088) exclusive rrwlock inode r = 0 (0xfffffd806e0bf898) #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 vn_open+0x1f4 sys/kern/vfs_vnops.c:107 #8 doopenat+0x32e sys/kern/vfs_syscalls.c:1137 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 Process 35414 (syz-executor) thread 0xffff80003c46b9d8 (142712) exclusive rrwlock inode r = 0 (0xfffffd806ea38898) #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 sys_getdents+0x264 sys/kern/vfs_syscalls.c:-1 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 29829 (syz-executor) thread 0xffff80002a2bb728 (471584) exclusive rrwlock inode r = 0 (0xfffffd806e0bf1d8) #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 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 Process 66981 (reaper) thread 0xffff8000ffffccd8 (401497) exclusive rwlock kmmaplk r = 0 (0xffffffff838de628) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1cb sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 11123K 11776K 166960K 14935 0 pcb 18 17K 19K 166960K 583 0 rtable 214 18K 18K 166960K 776 0 pf 38 18K 82K 166960K 253 0 ifaddr 44 8K 9K 166960K 162 0 ifgroup 55 2K 2K 166960K 254 0 sysctl 4 1K 9K 166960K 29 0 counters 68 36K 37K 166960K 262 0 ioctlops 0 0K 8K 166960K 2024 0 iov 0 0K 20K 166960K 173 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1614 101K 102K 166960K 3916 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 45 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 329 0 dirhash 12 2K 3K 166960K 72 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 2682 0 sigio 0 0K 0K 166960K 40 0 proc 72 91K 128K 166960K 1031 0 subproc 72 4K 4K 166960K 146 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 524 0 in_multi 94 6K 7K 166960K 306 0 ether_multi 1 0K 0K 166960K 39 0 mrt 2 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 840 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 251 163K 186K 166960K 25787 0 UVM aobj 131 7K 7K 166960K 140 0 pinsyscall 40 80K 104K 166960K 3938 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 162 0 NDP 12 0K 2K 166960K 111 0 temp 79 8684K 8931K 166960K 111207 0 kqueue 13 20K 32K 166960K 470 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 120 382 0 379 7 6 1 3 0 8 0 rtentry 176 226 0 142 5 0 5 5 0 8 0 unpcb 144 2469 0 2450 24 20 4 7 0 8 3 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 1116 0 1109 24 23 1 11 0 8 0 arp 128 26 0 17 1 0 1 1 0 8 0 inpcb 328 3306 0 3296 30 23 7 12 0 8 5 nd6 144 41 0 21 1 0 1 1 0 8 0 pkpcb 40 88 0 88 7 6 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 4 0 4 4 4 0 1 0 8 0 ppxss 1192 70 0 70 6 5 1 1 0 8 1 pppxif 1504 13 0 13 6 5 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 15 0 8 1 0 1 1 0 482 0 pffrnode 88 13 0 7 1 0 1 1 0 8 0 pffrent 40 24 0 16 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 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 199 0 108 1 0 1 1 0 8 0 pfstkey 128 199 0 108 4 0 4 4 0 8 0 pfstate 384 197 0 108 11 0 11 11 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1085 0 687 38 10 28 31 0 8 3 art_table 40 1087 0 687 5 0 5 5 0 8 0 art_node 32 220 0 149 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 14 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 322 0 312 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 58 0 41 3 0 3 3 0 8 0 dino2pl 256 6196 0 4670 97 0 97 97 0 8 0 ffsino 288 6196 0 4670 110 0 110 110 0 8 0 nchpl 144 9824 0 8107 64 0 64 64 0 8 0 rtmask 32 6 0 6 3 3 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 35482 0 35478 6 5 1 3 0 8 0 percpumem 16 146 0 97 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 158 0 132 5 3 2 3 0 8 0 scsiplug 72 5 0 5 4 3 1 1 0 8 1 scxspl 216 49365 0 49365 23 21 2 8 1 8 2 plimitpl 152 643 0 625 1 0 1 1 0 8 0 sigapl 424 2956 0 2906 10 2 8 9 0 8 0 knotepl 120 777 0 0 24 0 24 24 0 8 0 kqueuepl 224 990 0 980 11 6 5 5 0 8 4 pipepl 336 536 0 508 18 15 3 8 0 8 0 fdescpl 520 2909 0 2880 3 0 3 3 0 8 0 filepl 160 21397 0 21169 49 32 17 22 0 8 3 lockfpl 104 1955 0 1953 6 4 2 4 0 8 1 lockfspl 48 642 0 640 1 0 1 1 0 8 0 sessionpl 144 32 0 23 1 0 1 1 0 8 0 pgrppl 48 90 0 73 1 0 1 1 0 8 0 ucredpl 104 3008 0 2993 1 0 1 1 0 8 0 zombiepl 144 3392 0 3390 2 1 1 1 0 8 0 processpl 1240 2956 0 2906 6 0 6 6 0 8 0 procpl 656 7234 0 7172 8 2 6 8 0 8 0 sosppl 168 14 0 14 6 6 0 1 0 8 0 sockpl 728 6297 0 6264 78 68 10 22 0 8 7 mcl64k 65536 7 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 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 68 0 0 7 1 6 7 0 8 0 mtagpl 96 31 0 0 1 0 1 1 0 8 0 mbufpl 256 1171 0 0 73 0 73 73 0 8 0 bufpl 280 19229 0 13087 440 0 440 440 0 8 0 anonpl 32 12257 0 0 99 0 99 99 0 246 0 amapchunkpl 152 88087 0 87515 68 37 31 36 0 158 2 amappl16 200 7376 0 7340 63 50 13 26 0 8 5 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 133 0 121 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 3676 0 3647 4 2 2 3 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 18 0 18 1 1 0 1 0 8 0 amappl9 144 255 0 254 2 1 1 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 132 0 120 1 0 1 1 0 8 0 amappl6 120 264 0 261 1 0 1 1 0 8 0 amappl5 112 155 0 145 1 0 1 1 0 8 0 amappl4 104 310 0 288 1 0 1 1 0 8 0 amappl3 96 18044 0 17936 5 1 4 4 0 8 0 amappl2 88 759 0 694 2 0 2 2 0 8 0 amappl1 80 19007 0 18404 16 2 14 15 0 8 0 amappl 88 24538 0 24365 5 0 5 5 0 92 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 3 0 3 3 3 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 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 72 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 2909 0 2880 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2909 0 2880 1 0 1 1 0 8 0 vmmpekpl 168 24071 0 24015 3 0 3 3 0 8 0 vmmpepl 168 181232 0 179283 135 27 108 111 0 357 11 vmsppl 480 2908 0 2879 8 3 5 5 0 8 0 rwobjpl 72 51169 0 44148 143 10 133 136 0 8 1 pdppl 4096 5825 0 5758 131 60 71 85 0 8 4 pvpl 32 20282 0 0 165 1 164 164 0 265 0 pmappl 256 2908 0 2879 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 546 0 128 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace lf_advlock(ffff80000153d8a0,0,ffff800033bea218,2,ffff800038401090,40) at lf_advlock+0x2f7 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff80000153d8a0,0,ffff800033bea218,2,ffff800038401090,40) at lf_advlock+0x2f7 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd805a68c7e0,ffff800033bea218,2,ffff800038401090,40) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 closef(fffffd806cc5d158,ffff80002a297210) at closef+0x140 sys/kern/kern_descrip.c:-1 fdfree(ffff80002a297210) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80002a297210,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a297210,ffff8000384012d0,ffff800038401220) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000384012d0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000384012d0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c523a9134d0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp 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_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5