kernel: page fault trap, code=10 Stopped at acpi_pdirpa+0xd55ea: uvm_fault(0xfffffd806aae1a50, 0xe9779, 0, 1) -> e kernel: page fault trap, code=0 Stopped at db_read_bytes+0x110: movzbl 0xffffffffffffffff(%r15),%eax TID PID UID PRFLAGS PFLAGS CPU COMMAND *216750 67819 0 0 0x4000000 0K syz-executor db_read_bytes(e9779,1,ffff80002a0f2224) at db_read_bytes+0x110 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(e9779,1,0) at db_get_value+0x59 db_disasm(e9779,0) at db_disasm+0x94 db_trap(6,10) at db_trap+0x181 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a0f24c0) at db_ktrap+0x303 sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a0f24c0) at kerntrap+0x1dc sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0xd55ea rt_clone(ffff80002a0f2798,fffffd80706cc0b0,0) at rt_clone+0x98 sys/net/route.c:383 route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 sys/net/route.c:255 in_pcbselsrc(fffffd805f164cf4,ffff80002a0f28e8,fffffd80706cc020) at in_pcbselsrc+0x250 rip_output(fffffd805f165800,ffff8000015887d8,ffff80002a0f28e8,45d1) at rip_output+0x2bf sys/netinet/raw_ip.c:310 rip_send(ffff8000015887d8,fffffd805f165800,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628 sosend(ffff8000015887d8,0,ffff80002a0f2ae8,0,0,0) at sosend+0xa40 end trace frame: 0xffff80002a0f2ad0, count: 0 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(0xfffffd806aae1a50, 0xe9779, 0, 1) -> e ddb{0}> trace db_read_bytes(e9779,1,ffff80002a0f2224) at db_read_bytes+0x110 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(e9779,1,0) at db_get_value+0x59 db_disasm(e9779,0) at db_disasm+0x94 db_trap(6,10) at db_trap+0x181 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a0f24c0) at db_ktrap+0x303 sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a0f24c0) at kerntrap+0x1dc sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0xd55ea rt_clone(ffff80002a0f2798,fffffd80706cc0b0,0) at rt_clone+0x98 sys/net/route.c:383 route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 sys/net/route.c:255 in_pcbselsrc(fffffd805f164cf4,ffff80002a0f28e8,fffffd80706cc020) at in_pcbselsrc+0x250 rip_output(fffffd805f165800,ffff8000015887d8,ffff80002a0f28e8,45d1) at rip_output+0x2bf sys/netinet/raw_ip.c:310 rip_send(ffff8000015887d8,fffffd805f165800,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628 sosend(ffff8000015887d8,0,ffff80002a0f2ae8,0,0,0) at sosend+0xa40 dofilewritev(ffff8000ffff2f50,3,ffff80002a0f2ae8,0,ffff80002a0f2ba0) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff8000ffff2f50,ffff80002a0f2c50,ffff80002a0f2ba0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a0f2c50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0f2c50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe779fb58ba0, count: -18 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a0f2210 rbx 0x1 rdx 0xffff80000002a700 rcx 0xffff8000ffff2f50 rax 0xffffffff834b2ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80002a0f2340 r9 0x8080808080808080 r10 0x608a7e7df4d8435b r11 0x7ba5ccb58b46f3fc r12 0x1 r13 0x1 r14 0xffff80002a0f2225 r15 0xe977a acpi_pdirpa+0xd55eb rip 0xffffffff81338ea0 db_read_bytes+0x110 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002a0f21b0 ss 0x10 db_read_bytes+0x110: movzbl 0xffffffffffffffff(%r15),%eax ddb{0}> show proc PROC (syz-executor) tid=216750 pid=67819 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff2530,0xffffffff83631220 process=0xffff8000372696a8 user=0xffff80002a0ed000, vmspace=0xfffffd806aae1a50 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 67819 399198 95100 0 2 0 syz-executor *67819 216750 95100 0 7 0x4000000 syz-executor 45292 182633 42096 60928 2 0x10 syz-executor 45292 226131 42096 60928 3 0x4000090 sbwait syz-executor 42882 68677 50918 0 3 0x80 nanoslp syz-executor 42882 173106 50918 0 3 0x4000080 kqsel syz-executor 42882 513466 50918 0 3 0x4000080 fsleep syz-executor 7171 263090 53139 0 3 0x80 nanoslp syz-executor 7171 388173 53139 0 3 0x4000080 ttyout syz-executor 7171 505646 53139 0 3 0x4000080 fsleep syz-executor 29019 303409 77377 0 2 0x480 syz-executor 29019 351075 77377 0 3 0x4000080 fifor syz-executor 29019 500196 77377 0 3 0x4000080 fsleep syz-executor 84026 508894 68941 0 3 0x82 piperd syz-executor 37265 439664 68941 0 2 0x2 syz-executor 87171 120508 68941 0 3 0x82 piperd syz-executor 77377 399499 68941 0 2 0x482 syz-executor 53139 282357 68941 0 3 0x82 nanoslp syz-executor 50918 5548 68941 0 3 0x82 nanoslp syz-executor 95100 126672 68941 0 2 0x482 syz-executor 42096 80238 68941 0 2 0x482 syz-executor 59205 397712 1 0 3 0x100083 ttyin getty 81490 2268 0 0 3 0x14280 nfsidl nfsio 33441 358512 0 0 3 0x14280 nfsidl nfsio 57200 358317 0 0 3 0x14280 nfsidl nfsio 5433 192230 0 0 3 0x14280 nfsidl nfsio 68364 48558 0 0 3 0x14280 nfsidl nfsio 52604 178236 0 0 3 0x14280 nfsidl nfsio 26656 517156 0 0 3 0x14280 nfsidl nfsio 11255 436471 0 0 3 0x14280 nfsidl nfsio 84901 369824 0 0 3 0x14280 nfsidl nfsio 85960 153811 0 0 3 0x14280 nfsidl nfsio 45708 344725 0 0 3 0x14280 nfsidl nfsio 45173 6604 0 0 3 0x14280 nfsidl nfsio 7479 308842 0 0 3 0x14280 nfsidl nfsio 55029 395254 0 0 3 0x14280 nfsidl nfsio 33934 235232 0 0 3 0x14280 nfsidl nfsio 21326 291799 0 0 3 0x14280 nfsidl nfsio 71286 288116 0 0 3 0x14280 nfsidl nfsio 60246 362532 0 0 3 0x14280 nfsidl nfsio 69909 297282 0 0 3 0x14280 nfsidl nfsio 63858 3151 0 0 3 0x14280 nfsidl nfsio 48165 285019 0 0 3 0x14200 bored sosplice 68941 101678 54849 0 2 0x2 syz-executor 54849 159209 18576 0 3 0x10008a sigsusp ksh 18576 148453 19257 0 3 0x98 kqread sshd-session 19257 387351 99918 0 3 0x92 kqread sshd-session 99918 310666 1 0 3 0x88 kqread sshd 26675 504248 44409 74 3 0x1100092 bpf pflogd 44409 428402 1 0 3 0x80 sbwait pflogd 80423 411862 3562 73 2 0x1100010 syslogd 3562 259755 1 0 3 0x100082 sbwait syslogd 86021 479842 1 0 3 0x100080 kqread resolvd 72211 15279 1066 77 3 0x100092 kqread dhcpleased 20934 523120 1066 77 3 0x100092 kqread dhcpleased 1066 336976 1 0 3 0x80 kqread dhcpleased 50589 364070 0 0 3 0x14200 bored smr 90797 149019 0 0 2 0x14200 zerothread 16113 8073 0 0 3 0x14200 aiodoned aiodoned 3142 60231 0 0 3 0x14200 syncer update 79254 19427 0 0 3 0x14200 cleaner cleaner 86551 183909 0 0 3 0x14200 reaper reaper 68604 463682 0 0 3 0x14200 pgdaemon pagedaemon 81824 39567 0 0 3 0x14200 bored viomb 27531 468017 0 0 3 0x40014200 acpi0 acpi0 67410 116756 0 0 7 0x40014200 idle1 29842 159416 0 0 3 0x14200 bored softnet3 18440 26139 0 0 3 0x14200 bored softnet2 8935 36616 0 0 3 0x14200 bored softnet1 66522 221167 0 0 3 0x14200 bored softnet0 53523 122778 0 0 3 0x14200 bored systqmp 10172 144017 0 0 3 0x14200 bored systq 53187 42054 0 0 3 0x14200 tmoslp softclockmp 28225 386097 0 0 3 0x40014200 tmoslp softclock 22635 494050 0 0 3 0x40014200 idle0 1 231977 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 67819 (syz-executor) thread 0xffff8000ffff2f50 (216750) Process 37265 (syz-executor) thread 0xffff8000371becd0 (439664) Process 80423 (syslogd) thread 0xffff8000ffffdbe8 (411862) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10226 14198K 14714K 166960K 13839 0 pcb 17 16K 18K 166960K 816 0 rtable 241 9K 10K 166960K 3969 0 pf 37 18K 25K 166960K 423 0 ifaddr 42 9K 9K 166960K 557 0 ifgroup 55 2K 2K 166960K 674 0 sysctl 4 1K 3K 166960K 16 0 counters 64 36K 36K 166960K 392 0 ioctlops 0 0K 4K 166960K 1975 0 iov 0 0K 28K 166960K 237 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1543 97K 97K 166960K 4799 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 28K 28K 166960K 63 0 VM map 2 1K 1K 166960K 2 0 sem 15 32K 32K 166960K 234 0 dirhash 15 2K 3K 166960K 66 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 15 53K 93K 166960K 4349 0 sigio 0 0K 0K 166960K 90 0 proc 72 91K 140K 166960K 3664 0 subproc 104 6K 7K 166960K 1444 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 583 0 in_multi 96 7K 7K 166960K 1465 0 ether_multi 1 0K 0K 166960K 38 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 2218 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 73K 109K 166960K 35435 0 UVM aobj 32 4K 4K 166960K 35 0 pinsyscall 40 80K 108K 166960K 8137 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 253 0 NDP 14 0K 1K 166960K 417 0 temp 74 6824K 6952K 166960K 204802 0 kqueue 13 20K 30K 166960K 502 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 120 626 0 623 5 4 1 3 0 8 0 rtentry 112 1435 0 1328 6 2 4 4 0 8 0 unpcb 144 2582 0 2559 31 28 3 6 0 8 1 syncache 336 10 0 10 2 2 0 1 0 8 0 tcpqe 32 4 0 4 1 1 0 1 0 8 0 tcpcb 808 1477 0 1473 48 46 2 8 0 8 1 arp 120 250 0 228 1 0 1 1 0 8 0 inpcb 336 4609 0 4598 68 66 2 13 0 8 0 nd6 136 370 0 346 1 0 1 1 0 8 0 pkpcb 40 21 0 21 11 11 0 1 0 8 0 kcovpl 48 111 0 103 1 0 1 1 0 8 0 ppxss 1168 32 0 32 11 11 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 17 0 15 2 1 1 1 0 482 0 pffrnode 88 15 0 13 2 1 1 1 0 8 0 pffrent 40 37 0 35 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 420 0 341 1 0 1 1 0 8 0 pfstkey 128 425 0 346 3 0 3 3 0 8 0 pfstate 376 423 0 344 11 2 9 9 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 5770 0 5320 47 17 30 30 0 8 0 art_table 32 5774 0 5320 4 0 4 4 0 8 0 art_node 16 1415 0 1319 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 8 1 0 1 1 0 8 0 semapl 112 191 0 178 1 0 1 1 0 8 0 shmpl 112 32 0 3 1 0 1 1 0 8 0 dirhash 1024 53 0 34 3 0 3 3 0 8 0 dino2pl 256 6976 0 5268 109 1 108 108 0 8 0 ffsino 272 6976 0 5268 115 0 115 115 0 8 0 nchpl 144 11196 0 10504 66 39 27 66 0 8 0 uvmvnodes 80 6131 0 0 126 0 126 126 0 8 0 vnodes 216 6131 0 0 341 0 341 341 0 8 0 namei 1024 49828 0 49827 16 15 1 2 0 8 0 percpumem 16 210 0 164 1 0 1 1 0 8 0 kstatmem 264 352 0 328 2 0 2 2 0 8 0 scsiplug 72 3 0 3 3 3 0 1 0 8 0 scxspl 216 86030 0 86030 15 14 1 6 1 8 1 plimitpl 152 1027 0 1008 1 0 1 1 0 8 0 sigapl 424 4474 0 4406 9 0 9 9 0 8 0 futexpl 64 45565 0 45562 14 13 1 1 0 8 0 knotepl 120 930 0 0 23 0 23 23 0 8 0 kqueuepl 216 1357 0 1346 28 27 1 9 0 8 0 pipepl 320 799 0 772 9 6 3 6 0 8 0 fdescpl 496 4434 0 4405 6 1 5 5 0 8 0 filepl 152 27907 0 27650 65 53 12 18 0 8 1 lockfpl 104 1360 0 1358 4 3 1 2 0 8 0 lockfspl 48 393 0 391 1 0 1 1 0 8 0 sessionpl 144 136 0 127 1 0 1 1 0 8 0 pgrppl 48 320 0 303 1 0 1 1 0 8 0 ucredpl 104 4634 0 4619 1 0 1 1 0 8 0 zombiepl 144 4406 0 4406 2 1 1 1 0 8 1 processpl 1160 4474 0 4406 6 0 6 6 0 8 0 procpl 648 8500 0 8424 9 1 8 8 0 8 1 srpgc 96 16 0 16 5 5 0 1 0 8 0 sosppl 168 17 0 17 11 10 1 1 0 8 1 sockpl 664 7887 0 7850 83 77 6 17 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 317 0 0 32 0 32 32 0 8 0 mtagpl 96 36 0 0 1 0 1 1 0 8 0 mbufpl 256 1329 0 0 70 0 70 70 0 8 0 bufpl 280 16921 0 10775 442 0 442 442 0 8 0 anonpl 24 627854 0 619754 184 104 80 105 0 185 6 amapchunkpl 152 114889 0 114355 83 47 36 40 0 158 11 amappl16 200 12743 0 12539 99 75 24 32 0 8 0 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 336 0 324 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 6723 0 6694 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 130 0 130 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 327 0 314 1 0 1 1 0 8 0 amappl6 120 1194 0 1192 1 0 1 1 0 8 0 amappl5 112 568 0 555 1 0 1 1 0 8 0 amappl4 104 648 0 627 1 0 1 1 0 8 0 amappl3 96 22994 0 22899 6 2 4 4 0 8 0 amappl2 88 2196 0 2127 2 0 2 2 0 8 0 amappl1 80 27979 0 27426 15 1 14 14 0 8 0 amappl 88 33974 0 33813 6 1 5 5 0 92 0 dma65536 65536 2 0 2 1 1 0 1 0 8 0 dma32768 32768 2 0 2 2 2 0 1 0 8 0 dma4096 4096 3 0 3 3 3 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 3 0 3 3 3 0 1 0 8 0 dma256 256 9 0 9 3 3 0 1 0 8 0 dma128 128 255 0 255 3 3 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 21 0 20 1 0 1 1 0 8 0 aobjpl 72 34 0 3 1 0 1 1 0 8 0 uaddrrnd 24 4434 0 4405 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4434 0 4405 1 0 1 1 0 8 0 vmmpekpl 168 34505 0 34461 4 0 4 4 0 8 0 vmmpepl 168 285016 0 283089 172 75 97 107 0 357 5 vmsppl 440 4433 0 4405 6 2 4 5 0 8 0 rwobjpl 56 79054 0 71808 121 15 106 107 0 8 0 pdppl 4096 8875 0 8810 255 182 73 85 0 8 8 pvpl 32 38309 0 0 308 0 308 308 0 265 0 pmappl 248 4433 0 4405 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 798 0 353 14 1 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_read_bytes(e9779,1,ffff80002a0f2224) at db_read_bytes+0x110 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(e9779,1,0) at db_get_value+0x59 db_disasm(e9779,0) at db_disasm+0x94 db_trap(6,10) at db_trap+0x181 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a0f24c0) at db_ktrap+0x303 sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a0f24c0) at kerntrap+0x1dc sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0xd55ea rt_clone(ffff80002a0f2798,fffffd80706cc0b0,0) at rt_clone+0x98 sys/net/route.c:383 route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline] route_mpath(fffffd80706cc098,ffff80002a0f28ec,0,0) at route_mpath+0x170 sys/net/route.c:255 in_pcbselsrc(fffffd805f164cf4,ffff80002a0f28e8,fffffd80706cc020) at in_pcbselsrc+0x250 rip_output(fffffd805f165800,ffff8000015887d8,ffff80002a0f28e8,45d1) at rip_output+0x2bf sys/netinet/raw_ip.c:310 rip_send(ffff8000015887d8,fffffd805f165800,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628 sosend(ffff8000015887d8,0,ffff80002a0f2ae8,0,0,0) at sosend+0xa40 dofilewritev(ffff8000ffff2f50,3,ffff80002a0f2ae8,0,ffff80002a0f2ba0) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_write(ffff8000ffff2f50,ffff80002a0f2c50,ffff80002a0f2ba0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a0f2c50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0f2c50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe779fb58ba0, count: -18 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:1219 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:1219 sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5