panic: unhandled af 0 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *308446 76088 0 0x2 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e4b5a) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a24dc10,ffff800000c43d90,fffff40078a1ec60,5dc) at if_output_tso+0x22b ip_output(fffff4006c73bb00,0,fffff4006ff82448,800,0,fffff4006ff824e0,d9ad4750e3aefe94) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015c7140) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015ac5f0,fffff4006db64e00,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015ac5f0,0,ffff80002a24e058,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffd9f8,3,ffff80002a24e058,0,ffff80002a24e110) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffd9f8,ffff80002a24e1c0,ffff80002a24e110) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a24e1c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a24e1c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79cf18687ea0, count: 3 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: unhandled af 0 ddb{0}> show kasan No such command ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e4b5a) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a24dc10,ffff800000c43d90,fffff40078a1ec60,5dc) at if_output_tso+0x22b ip_output(fffff4006c73bb00,0,fffff4006ff82448,800,0,fffff4006ff824e0,d9ad4750e3aefe94) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015c7140) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015ac5f0,fffff4006db64e00,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015ac5f0,0,ffff80002a24e058,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffd9f8,3,ffff80002a24e058,0,ffff80002a24e110) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffd9f8,ffff80002a24e1c0,ffff80002a24e110) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a24e1c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a24e1c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79cf18687ea0, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a24d9f0 rbx 0xffffffff838f3e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff800045ffd9f8 rax 0xffffffff838f2ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfcc3644897384758 r11 0xa07db517a2b203a7 r12 0xffffffff838f3c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff820a9515 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a24d9e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=308446 pid=76088 tcnt=1 stat=onproc flags process=2 proc=0 runpri=24, usrpri=70, slppri=24, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045ffcf98,0xffff800045ffd240 process=0xffff800045ff21c0 user=0xffff80002a249000, vmspace=0xfffff4006f0453e0 estcpu=20, cpticks=22, pctcpu=0.15, user=0, sys=20, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12401 433441 60510 0 2 0 syz-executor 12401 212470 60510 0 3 0x4000080 fsleep syz-executor 37549 168091 67165 0 2 0 syz-executor 37549 194945 67165 0 3 0x4000080 fifow syz-executor 47303 410156 31973 0 2 0 syz-executor 47303 213054 31973 0 3 0x4000080 fsleep syz-executor 11854 205718 18816 0 2 0 syz-executor 11854 502725 18816 0 2 0x4000000 syz-executor 79332 474770 64288 0 3 0x80 nanoslp syz-executor 79332 219050 64288 0 3 0x4000080 sbwait syz-executor 79332 285116 64288 0 3 0x4000080 fsleep syz-executor 96770 182246 76088 0 3 0x82 nanoslp syz-executor 33417 33119 0 0 3 0x14280 nfsidl nfsio 52992 224244 0 0 3 0x14280 nfsidl nfsio 42332 111376 0 0 3 0x14280 nfsidl nfsio 47697 59471 0 0 3 0x14280 nfsidl nfsio 44524 360386 0 0 3 0x14280 nfsidl nfsio 41874 182404 0 0 3 0x14280 nfsidl nfsio 91634 36050 0 0 3 0x14280 nfsidl nfsio 32596 347964 0 0 3 0x14280 nfsidl nfsio 92145 109214 0 0 3 0x14280 nfsidl nfsio 22359 288611 0 0 3 0x14280 nfsidl nfsio 5792 223958 0 0 3 0x14280 nfsidl nfsio 36608 144297 0 0 3 0x14280 nfsidl nfsio 23837 13074 0 0 3 0x14280 nfsidl nfsio 2290 135312 0 0 3 0x14280 nfsidl nfsio 41917 54368 0 0 3 0x14280 nfsidl nfsio 76751 83093 0 0 3 0x14280 nfsidl nfsio 18551 250323 0 0 3 0x14280 nfsidl nfsio 59785 92979 0 0 3 0x14280 nfsidl nfsio 70779 176482 0 0 3 0x14280 nfsidl nfsio 42006 355155 0 0 3 0x14280 nfsidl nfsio 60510 144351 76088 0 3 0x82 nanoslp syz-executor 2341 99544 76088 0 2 0x2 syz-executor 76294 306779 76088 0 3 0x82 nanoslp syz-executor 31973 107464 76088 0 3 0x82 nanoslp syz-executor 67165 399671 76088 0 3 0x82 nanoslp syz-executor 18816 159268 76088 0 3 0x82 nanoslp syz-executor 64288 440703 76088 0 3 0x82 nanoslp syz-executor *76088 308446 92657 0 7 0x2 syz-executor 92657 393272 56115 0 3 0x10008a sigsusp ksh 56115 143164 8886 0 3 0x98 kqread sshd-session 8886 90948 63653 0 3 0x92 kqread sshd-session 76535 76454 1 0 3 0x100083 ttyopn getty 63653 489660 1 0 3 0x88 kqread sshd 15325 355480 3580 74 3 0x1100092 bpf pflogd 3580 365267 1 0 3 0x80 sbwait pflogd 82303 281281 94842 73 3 0x1100090 kqread syslogd 94842 137490 1 0 3 0x100082 sbwait syslogd 4833 85119 1 0 3 0x100080 kqread resolvd 5064 349637 70370 77 3 0x100092 kqread dhcpleased 14378 300552 70370 77 3 0x100092 kqread dhcpleased 70370 360306 1 0 3 0x80 kqread dhcpleased 27336 285045 0 0 3 0x14200 bored smr 82843 146767 0 0 2 0x14200 zerothread 78080 334234 0 0 3 0x14200 aiodoned aiodoned 57099 123212 0 0 3 0x14200 syncer update 15755 385129 0 0 3 0x14200 cleaner cleaner 57175 172408 0 0 3 0x14200 reaper reaper 75833 289465 0 0 3 0x14200 pgdaemon pagedaemon 96306 135610 0 0 3 0x14200 bored viomb 49206 303585 0 0 3 0x40014200 acpi0 acpi0 60313 418241 0 0 7 0x40014200 idle1 55729 220782 0 0 3 0x14200 bored softnet1 5980 89603 0 0 3 0x14200 bored softnet0 60174 495766 0 0 3 0x14200 bored systqmp 59100 151809 0 0 3 0x14200 bored systq 29609 219185 0 0 3 0x14200 tmoslp softclockmp 20323 248444 0 0 3 0x40014200 tmoslp softclock 57117 185061 0 0 3 0x40014200 idle0 1 229468 0 0 3 0x82 nanoslp init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 76088 (syz-executor) thread 0xffff800045ffd9f8 (308446) exclusive rwlock inet46 r = 0 (0xffff8000015ac610) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sosend+0x78e sys/kern/uipc_socket.c:-1 #3 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #4 sys_write+0xa2 sys/kern/sys_generic.c:300 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff8394b2c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 solock_shared+0x6e sys/kern/uipc_socket2.c:343 #3 sosend+0x78e sys/kern/uipc_socket.c:-1 #4 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff8000015ac7d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 sblock+0xb6 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e9 sys/kern/uipc_socket.c:639 #4 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11064 12098K 12420K 166960K 12371 0 pcb 18 12K 12K 166960K 55 0 rtable 234 8K 9K 166960K 431 0 pf 38 18K 20K 166960K 63 0 ifaddr 45 8K 8K 166960K 59 0 ifgroup 57 2K 2K 166960K 72 0 sysctl 3 1K 9K 166960K 10 0 counters 72 37K 37K 166960K 86 0 ioctlops 0 0K 4K 166960K 1530 0 iov 0 0K 16K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1294 81K 82K 166960K 1625 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 12 0K 0K 166960K 17 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 17 61K 89K 166960K 354 0 sigio 0 0K 0K 166960K 2 0 proc 72 115K 180K 166960K 602 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 2 0K 0K 166960K 25 0 in_multi 102 7K 7K 166960K 125 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 473 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 228 175K 184K 166960K 4938 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 42 84K 102K 166960K 1536 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 13 0K 2K 166960K 36 0 temp 39 9115K 9178K 166960K 17695 0 kqueue 14 22K 27K 166960K 74 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 55 0 52 1 0 1 1 0 8 0 rtentry 176 126 0 25 6 0 6 6 0 8 0 unpcb 144 351 0 326 6 0 6 6 0 8 5 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 47 0 43 1 0 1 1 0 8 0 arp 136 20 0 2 1 0 1 1 0 8 0 inpcb 328 268 0 259 7 0 7 7 0 8 5 nd6 152 29 0 4 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 6 0 5 1 0 1 1 0 8 0 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 4 0 4 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 40 0 0 1 0 1 1 0 8 0 pfstkey 128 42 0 2 2 0 2 2 0 8 0 pfstate 448 40 0 1 5 0 5 5 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 546 0 102 31 0 31 31 0 8 2 art_table 40 547 0 102 5 0 5 5 0 8 0 art_node 32 126 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 15 0 5 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2023 0 554 93 0 93 93 0 8 0 ffsino 296 2023 0 554 114 0 114 114 0 8 0 nchpl 144 2515 0 805 64 0 64 64 0 8 0 vnodes 216 2220 0 0 124 0 124 124 0 8 0 namei 1024 8095 0 8095 1 0 1 1 0 8 1 percpumem 16 59 0 7 1 0 1 1 0 8 0 kstatmem 264 39 0 10 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7790 0 7790 4 3 1 3 1 8 1 plimitpl 152 44 0 27 1 0 1 1 0 8 0 sigapl 424 689 0 622 8 0 8 8 0 8 0 knotepl 120 533 0 0 17 0 17 17 0 8 0 kqueuepl 224 87 0 77 1 0 1 1 0 8 0 pipepl 344 139 0 112 3 0 3 3 0 8 0 fdescpl 528 653 0 622 3 0 3 3 0 8 0 filepl 160 3187 0 2967 17 0 17 17 0 8 6 lockfpl 104 106 0 104 1 0 1 1 0 8 0 lockfspl 48 48 0 46 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 566 0 553 1 0 1 1 0 8 0 zombiepl 144 624 0 622 1 0 1 1 0 8 0 processpl 1232 689 0 622 6 0 6 6 0 8 0 procpl 664 1023 0 950 8 0 8 8 0 8 0 sockpl 752 679 0 642 21 9 12 21 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mextrefs 64 20 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 183 0 0 12 0 12 12 0 8 0 bufpl 272 2674 0 107 172 0 172 172 0 8 0 anonpl 32 5420 0 0 44 0 44 44 0 247 0 amapchunkpl 152 14623 0 14175 28 0 28 28 0 158 9 amappl16 200 1957 0 1931 6 3 3 5 0 8 0 amappl15 192 9 0 7 1 0 1 1 0 8 0 amappl14 184 465 0 464 1 0 1 1 0 8 0 amappl13 176 126 0 114 1 0 1 1 0 8 0 amappl12 168 907 0 877 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 1 0 1 0 8 0 amappl10 152 69 0 55 1 0 1 1 0 8 0 amappl9 144 277 0 276 1 0 1 1 0 8 0 amappl8 136 109 0 107 1 0 1 1 0 8 0 amappl7 128 149 0 136 1 0 1 1 0 8 0 amappl6 120 167 0 165 1 0 1 1 0 8 0 amappl5 112 99 0 89 1 0 1 1 0 8 0 amappl4 104 292 0 273 1 0 1 1 0 8 0 amappl3 96 2870 0 2763 4 0 4 4 0 8 0 amappl2 88 561 0 499 2 0 2 2 0 8 0 amappl1 80 11342 0 10732 15 0 15 15 0 8 2 amappl 88 4158 0 4003 5 0 5 5 0 92 1 uvmvnodes 80 106 0 0 3 0 3 3 0 8 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 653 0 622 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 653 0 622 1 0 1 1 0 8 0 vmmpekpl 168 7220 0 7178 3 0 3 3 0 8 0 vmmpepl 168 49805 0 47906 88 0 88 88 0 357 2 vmsppl 488 652 0 622 5 0 5 5 0 8 0 rwobjpl 80 16854 0 15831 24 0 24 24 0 8 1 pdppl 4096 1313 0 1244 97 26 71 83 0 8 2 pvpl 32 10841 0 0 88 0 88 88 0 265 0 pmappl 256 652 0 622 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 446 0 30 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834e4b5a) at panic+0x1e5 sys/kern/subr_prf.c:198 unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1 if_output_tso(ffff80000004e858,ffff80002a24dc10,ffff800000c43d90,fffff40078a1ec60,5dc) at if_output_tso+0x22b ip_output(fffff4006c73bb00,0,fffff4006ff82448,800,0,fffff4006ff824e0,d9ad4750e3aefe94) at ip_output+0x1043 sys/netinet/ip_output.c:437 tcp_output(ffff8000015c7140) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070 tcp_send(ffff8000015ac5f0,fffff4006db64e00,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859 sosend(ffff8000015ac5f0,0,ffff80002a24e058,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1 dofilewritev(ffff800045ffd9f8,3,ffff80002a24e058,0,ffff80002a24e110) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff800045ffd9f8,ffff80002a24e1c0,ffff80002a24e110) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a24e1c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a24e1c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79cf18687ea0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) 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+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff80002999dff0) 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+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192 end trace frame: 0x0, count: -5