login: "C#DT9o| %@ ./file0"C#DT9o| %@ ./file0panic: unhandled af 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 69112 83164 0 0 0 1 syz-executor.1 *339871 83164 0 0 0x4000000 0K syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240d8e8) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800021eebc70,ffff800000b38ce8,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000b38aa0,ffff800021eebf38,ffff800021eebc70,ffff800021eebb80,ffff800021eebdd8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800021eebf20,ffff800000b38aa0,ffff800021eebc70,ffff800021eebc96,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8,ffff800021eebe00) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800021eebf20,ffff800021eec010,ffff800021eec020,ffff800021eec000,ffff800021eebfe8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(18,2,ffff800000ac6000,ffff800021eec1b0) at pf_test+0x1a35 sys/net/pf.c:7025 ip6_output(fffffd806d49b000,ffffffff828af360,0,1,ffff800021eec248,0) at ip6_output+0x115c sys/netinet6/ip6_output.c:618 mld6_sendpkt(ffff800000b26180,83,0) at mld6_sendpkt+0x2da sys/netinet6/mld6.c:465 mld6_start_listening(ffff800000b26180) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800021eec5b0,ffff800000ac6000,ffff800021eec638) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 end trace frame: 0xffff800021eec690, 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 unhandled af 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240d8e8) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800021eebc70,ffff800000b38ce8,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000b38aa0,ffff800021eebf38,ffff800021eebc70,ffff800021eebb80,ffff800021eebdd8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800021eebf20,ffff800000b38aa0,ffff800021eebc70,ffff800021eebc96,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8,ffff800021eebe00) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800021eebf20,ffff800021eec010,ffff800021eec020,ffff800021eec000,ffff800021eebfe8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(18,2,ffff800000ac6000,ffff800021eec1b0) at pf_test+0x1a35 sys/net/pf.c:7025 ip6_output(fffffd806d49b000,ffffffff828af360,0,1,ffff800021eec248,0) at ip6_output+0x115c sys/netinet6/ip6_output.c:618 mld6_sendpkt(ffff800000b26180,83,0) at mld6_sendpkt+0x2da sys/netinet6/mld6.c:465 mld6_start_listening(ffff800000b26180) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800021eec5b0,ffff800000ac6000,ffff800021eec638) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000ac6000,ffff800021eec6a0,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000ac6000,ffff800021eec6a0,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000ac6000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000ac6000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 in6_ioctl_change_ifaddr(8080691a,ffff800021eec970,ffff800000ac6000) at in6_ioctl_change_ifaddr+0x3de sys/netinet6/in6.c:349 ifioctl(fffffd806c8f01a0,8080691a,ffff800021eec970,ffff800020e039d8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80671597d8,8080691a,ffff800021eec970,ffff800020e039d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e039d8,ffff800021eeca88,ffff800021eecad0) at sys_ioctl+0x4a5 syscall(ffff800021eecb50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021eecb50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11ff9c9ce0, count: -23 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800021eeb910 rbx 0xffff800021eeb9c0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff821f795f kprintf+0x16f r9 0x1 r10 0x2 r11 0x3eae5feba5c22367 r12 0x3000000008 r13 0xffff800021eeb920 r14 0x100 r15 0x1 rip 0xffffffff81a0af38 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021eeb900 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=339871 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e03c48,0xffffffff828c27a0 process=0xffff800020eb47e0 user=0xffff800021ee7000, vmspace=0xfffffd807efffb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 83164 69112 42606 0 7 0 syz-executor.1 *83164 339871 42606 0 7 0x4000000 syz-executor.1 80471 106363 0 0 3 0x14200 bored sosplice 42606 252103 4166 0 3 0x82 nanosleep syz-executor.1 86742 319679 4166 0 3 0x82 nanosleep syz-executor.0 4166 220362 90643 0 3 0x82 thrsleep syz-fuzzer 4166 402715 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 361554 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 128219 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 216549 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 255489 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 342786 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 210160 90643 0 3 0x4000082 kqread syz-fuzzer 4166 249682 90643 0 3 0x4000082 thrsleep syz-fuzzer 4166 54952 90643 0 3 0x4000082 thrsleep syz-fuzzer 90643 476499 97366 0 3 0x10008a pause ksh 97366 521353 98388 0 3 0x92 select sshd 97061 340661 1 0 3 0x100083 ttyin getty 98388 205963 1 0 3 0x80 select sshd 99594 441144 57537 74 3 0x100092 bpf pflogd 57537 119021 1 0 3 0x80 netio pflogd 97701 522846 16921 73 3 0x100090 kqread syslogd 16921 397906 1 0 3 0x100082 netio syslogd 2246 420923 1 77 3 0x100090 poll dhclient 27473 296359 1 0 3 0x80 poll dhclient 48522 108342 0 0 3 0x14200 bored smr 70674 378866 0 0 3 0x14200 pgzero zerothread 20351 190259 0 0 3 0x14200 aiodoned aiodoned 7238 379263 0 0 3 0x14200 syncer update 24068 245445 0 0 3 0x14200 cleaner cleaner 86015 50368 0 0 3 0x14200 reaper reaper 94927 115973 0 0 3 0x14200 pgdaemon pagedaemon 60015 24356 0 0 3 0x14200 bored crynlk 27408 255735 0 0 3 0x14200 bored crypto 1194 197163 0 0 3 0x40014200 acpi0 acpi0 59328 374634 0 0 3 0x40014200 idle1 47590 280009 0 0 3 0x14200 bored softnet 80588 506939 0 0 3 0x14200 bored systqmp 29734 355448 0 0 3 0x14200 bored systq 57785 441743 0 0 3 0x40014200 bored softclock 92095 148410 0 0 3 0x40014200 idle0 1 229139 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83164 (syz-executor.1) thread 0xffff800020e039d8 (339871) exclusive rwlock netlock r = 0 (0xffffffff8270c198) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in6_ioctl_change_ifaddr+0xab #2 ifioctl+0xe70 sys/net/if.c:2282 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8291b1c8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9508 6475K 6728K 78643K 10791 0 pcb 13 8K 8K 78643K 52 0 rtable 103 4K 6K 78643K 326 0 ifaddr 68 14K 14K 78643K 89 0 counters 45 34K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1585 0 iov 0 0K 12K 78643K 130 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1295 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 31 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 195 0 proc 60 63K 95K 78643K 459 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 3 0 in_multi 44 2K 3K 78643K 61 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 219 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 123 22K 31K 78643K 1589 0 UVM aobj 10 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 21 0 NDP 10 0K 0K 78643K 15 0 temp 95 3860K 3924K 78643K 3868 0 kqueue 3 4K 8K 78643K 11 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 56 0 17 2 0 2 2 0 8 0 unpcb 120 127 0 113 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 35 0 35 1 1 0 1 0 8 0 tcpcb 544 74 0 70 1 0 1 1 0 8 0 inpcb 296 227 0 218 2 0 2 2 0 8 1 nd6 48 9 0 4 1 0 1 1 0 8 0 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 47 0 46 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 29 0 27 1 0 1 1 0 8 0 pfstitem 24 22 0 3 1 0 1 1 0 8 0 pfstkey 112 22 0 3 1 0 1 1 0 8 0 pfstate 328 22 0 3 2 0 2 2 0 8 0 pfrule 1360 35 0 20 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 247 0 44 14 0 14 14 0 8 1 art_table 32 248 0 44 2 0 2 2 0 8 0 art_node 16 53 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 21 0 11 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1686 0 281 89 0 89 89 0 8 0 ffsino 272 1686 0 281 94 0 94 94 0 8 0 nchpl 144 2169 0 556 60 0 60 60 0 8 0 uvmvnodes 72 1778 0 0 33 0 33 33 0 8 0 vnodes 208 1778 0 0 94 0 94 94 0 8 0 namei 1024 5975 0 5975 1 0 1 1 0 8 1 percpumem 16 33 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 11 0 10 1 0 1 1 0 8 0 scxspl 192 6270 0 6270 8 4 4 7 0 8 4 plimitpl 152 22 0 14 1 0 1 1 0 8 0 sigapl 424 411 0 378 4 0 4 4 0 8 0 futexpl 56 2811 0 2811 1 0 1 1 0 8 1 knotepl 112 67 0 48 1 0 1 1 0 8 0 kqueuepl 144 21 0 19 1 0 1 1 0 8 0 pipepl 304 102 0 92 2 0 2 2 0 8 1 fdescpl 496 395 0 378 3 0 3 3 0 8 0 filepl 152 2325 0 2215 5 0 5 5 0 8 0 lockfpl 104 134 0 133 1 0 1 1 0 8 0 lockfspl 48 54 0 53 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 190 0 179 1 0 1 1 0 8 0 zombiepl 144 379 0 378 1 0 1 1 0 8 0 processpl 992 411 0 378 5 0 5 5 0 8 0 procpl 624 782 0 739 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 0 1 1 0 8 1 sockpl 400 383 0 358 4 0 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 158 0 0 19 0 19 19 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 234 0 0 15 0 15 15 0 8 0 bufpl 280 3661 0 135 252 0 252 252 0 8 0 anonpl 16 52048 0 35304 70 1 69 69 0 124 1 amapchunkpl 152 2118 0 1966 11 0 11 11 0 158 3 amappl16 192 1739 0 836 46 0 46 46 0 8 0 amappl15 184 76 0 73 1 0 1 1 0 8 0 amappl14 176 25 0 22 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 6 0 5 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 93 0 87 1 0 1 1 0 8 0 amappl9 136 388 0 387 1 0 1 1 0 8 0 amappl8 128 355 0 320 2 0 2 2 0 8 0 amappl7 120 126 0 113 1 0 1 1 0 8 0 amappl6 112 27 0 18 1 0 1 1 0 8 0 amappl5 104 295 0 277 1 0 1 1 0 8 0 amappl4 96 481 0 454 1 0 1 1 0 8 0 amappl3 88 102 0 97 1 0 1 1 0 8 0 amappl2 80 2286 0 2206 2 0 2 2 0 8 0 amappl1 72 18518 0 18064 23 13 10 18 0 8 0 amappl 80 1034 0 988 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 395 0 378 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 395 0 378 1 0 1 1 0 8 0 vmmpekpl 168 7034 0 6997 2 0 2 2 0 8 0 vmmpepl 168 55402 0 53227 114 7 107 111 0 357 12 vmsppl 368 394 0 378 2 0 2 2 0 8 0 pdppl 4096 797 0 756 6 0 6 6 0 8 0 pvpl 32 172491 0 152533 168 0 168 168 0 265 6 pmappl 232 394 0 378 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 261 0 3 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240d8e8) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800021eebc70,ffff800000b38ce8,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000b38aa0,ffff800021eebf38,ffff800021eebc70,ffff800021eebb80,ffff800021eebdd8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800021eebf20,ffff800000b38aa0,ffff800021eebc70,ffff800021eebc96,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000b38aa0,ffff800021eebf20,ffff800021eebdd8,ffff800021eebe00) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800021eebf20,ffff800021eec010,ffff800021eec020,ffff800021eec000,ffff800021eebfe8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(18,2,ffff800000ac6000,ffff800021eec1b0) at pf_test+0x1a35 sys/net/pf.c:7025 ip6_output(fffffd806d49b000,ffffffff828af360,0,1,ffff800021eec248,0) at ip6_output+0x115c sys/netinet6/ip6_output.c:618 mld6_sendpkt(ffff800000b26180,83,0) at mld6_sendpkt+0x2da sys/netinet6/mld6.c:465 mld6_start_listening(ffff800000b26180) at mld6_start_listening+0x8e sys/netinet6/mld6.c:136 in6_addmulti(ffff800021eec5b0,ffff800000ac6000,ffff800021eec638) at in6_addmulti+0x25e sys/netinet6/in6.c:1073 in6_update_ifa(ffff800000ac6000,ffff800021eec6a0,0) at in6_update_ifa+0x1530 in6_joingroup sys/netinet6/in6.c:1142 [inline] in6_update_ifa(ffff800000ac6000,ffff800021eec6a0,0) at in6_update_ifa+0x1530 sys/netinet6/in6.c:764 in6_ifattach_linklocal(ffff800000ac6000,0) at in6_ifattach_linklocal+0x2a2 sys/netinet6/in6_ifattach.c:281 in6_ifattach(ffff800000ac6000) at in6_ifattach+0x1b8 sys/netinet6/in6_ifattach.c:401 in6_ioctl_change_ifaddr(8080691a,ffff800021eec970,ffff800000ac6000) at in6_ioctl_change_ifaddr+0x3de sys/netinet6/in6.c:349 ifioctl(fffffd806c8f01a0,8080691a,ffff800021eec970,ffff800020e039d8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80671597d8,8080691a,ffff800021eec970,ffff800020e039d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e039d8,ffff800021eeca88,ffff800021eecad0) at sys_ioctl+0x4a5 syscall(ffff800021eecb50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021eecb50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x11ff9c9ce0, count: -23 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7fffff7690, count: 12 ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7fffff7690, count: -3