login: panic: unhandled af 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 88212 89618 0 0 0 1 syz-executor.0 *191011 89618 0 0 0x4000000 0K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823f21dc) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800020ed5470,ffff800000aa57a0,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000aa5558,ffff800020ed5738,ffff800020ed5470,ffff800020ed5380,ffff800020ed55d8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800020ed5720,ffff800000aa5558,ffff800020ed5470,ffff800020ed5496,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8,ffff800020ed5600) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800020ed5720,ffff800020ed5810,ffff800020ed5820,ffff800020ed5800,ffff800020ed57e8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(2,1,ffff800000ac3000,ffff800020ed5938) at pf_test+0x1909 sys/net/pf.c:7101 ip_input_if(ffff800020ed5938,ffff800020ed5944,4,0,ffff800000ac3000) at ip_input_if+0x59e sys/netinet/ip_input.c:316 ipv4_input(ffff800000ac3000,fffffd806d4a2300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff800000ac3000,fffffd806d4a2300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d if_ih_input sys/net/if.c:908 [inline] if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d sys/net/if.c:969 end trace frame: 0xffff800020ed5ab0, 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(ffffffff823f21dc) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800020ed5470,ffff800000aa57a0,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000aa5558,ffff800020ed5738,ffff800020ed5470,ffff800020ed5380,ffff800020ed55d8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800020ed5720,ffff800000aa5558,ffff800020ed5470,ffff800020ed5496,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8,ffff800020ed5600) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800020ed5720,ffff800020ed5810,ffff800020ed5820,ffff800020ed5800,ffff800020ed57e8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(2,1,ffff800000ac3000,ffff800020ed5938) at pf_test+0x1909 sys/net/pf.c:7101 ip_input_if(ffff800020ed5938,ffff800020ed5944,4,0,ffff800000ac3000) at ip_input_if+0x59e sys/netinet/ip_input.c:316 ipv4_input(ffff800000ac3000,fffffd806d4a2300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff800000ac3000,fffffd806d4a2300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d if_ih_input sys/net/if.c:908 [inline] if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d sys/net/if.c:969 tun_dev_write(5d00,ffff800020ed5d08,f9,2) at tun_dev_write+0x1fc sys/net/if_tun.c:871 spec_write(ffff800020ed5b50) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e593688,ffff800020ed5d08,11,fffffd807f7bf660) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd80669ca7d0,ffff800020ed5d08,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e464f8,f0,ffff800020ed5d08,0,ffff800020ed5df0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e464f8,ffff800020ed5da0,ffff800020ed5df0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020ed5e70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed5e70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf47630b50d0, count: -22 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020ed5110 rbx 0xffff800020ed51c0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8102be9f kprintf+0x16f r9 0x1 r10 0x2 r11 0x93f0659cb1b42142 r12 0x3000000008 r13 0xffff800020ed5120 r14 0x100 r15 0x1 rip 0xffffffff81850b98 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ed5100 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=191011 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e47398,0xffffffff828a0f20 process=0xffff800020dfcf80 user=0xffff800020ed0000, vmspace=0xfffffd807f000170 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 89618 88212 57615 0 7 0 syz-executor.0 *89618 191011 57615 0 7 0x4000000 syz-executor.0 15669 413400 74061 0 3 0x3000 suspend syz-executor.1 15669 158799 74061 0 2 0x4081000 syz-executor.1 14234 407818 0 0 3 0x14200 bored sosplice 95462 50558 1 0 3 0x100083 ttyin getty 74061 38806 68981 0 3 0x82 nanosleep syz-executor.1 57615 178861 68981 0 3 0x82 nanosleep syz-executor.0 68981 394028 74606 0 3 0x82 thrsleep syz-fuzzer 68981 138653 74606 0 3 0x4000082 nanosleep syz-fuzzer 68981 297492 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 6698 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 76443 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 190255 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 293103 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 336440 74606 0 3 0x4000082 thrsleep syz-fuzzer 68981 521278 74606 0 3 0x4000082 kqread syz-fuzzer 68981 230961 74606 0 3 0x4000082 nanosleep syz-fuzzer 74606 487582 86651 0 3 0x10008a pause ksh 86651 407199 32654 0 3 0x92 select sshd 32654 211624 1 0 3 0x80 select sshd 61652 346864 45501 74 3 0x100092 bpf pflogd 45501 164708 1 0 3 0x80 netio pflogd 27036 271997 80621 73 3 0x100090 kqread syslogd 80621 162971 1 0 3 0x100082 netio syslogd 13995 226984 1 77 3 0x100090 poll dhclient 19556 360197 1 0 3 0x80 poll dhclient 551 423306 0 0 3 0x14200 bored smr 60952 177538 0 0 2 0x14200 zerothread 19228 521296 0 0 3 0x14200 aiodoned aiodoned 94749 30223 0 0 3 0x14200 syncer update 74937 322181 0 0 3 0x14200 cleaner cleaner 62672 305145 0 0 3 0x14200 reaper reaper 96983 258882 0 0 3 0x14200 pgdaemon pagedaemon 10519 201480 0 0 3 0x14200 bored crynlk 62988 386253 0 0 3 0x14200 bored crypto 58223 183935 0 0 3 0x40014200 acpi0 acpi0 2461 448543 0 0 3 0x40014200 idle1 33055 316371 0 0 3 0x14200 bored softnet 32983 333376 0 0 3 0x14200 bored systqmp 93770 316983 0 0 3 0x14200 bored systq 35339 493523 0 0 3 0x40014200 bored softclock 15470 419422 0 0 3 0x40014200 idle0 1 284484 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 89618 (syz-executor.0) thread 0xffff800020e464f8 (191011) exclusive rwlock netlock r = 0 (0xffffffff826d4978) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 tun_dev_write+0x1f1 sys/net/if_tun.c:870 #2 spec_write+0xd4 sys/kern/spec_vnops.c:309 #3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 #4 vn_write+0x14e sys/kern/vfs_vnops.c:414 #5 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #6 sys_write+0x83 sys/kern/sys_generic.c:285 #7 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828e7060) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #3 sys_write+0x83 sys/kern/sys_generic.c:285 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9513 6665K 7310K 78643K 11174 0 pcb 13 8K 8K 78643K 82 0 rtable 114 4K 5K 78643K 247 0 ifaddr 58 13K 14K 78643K 84 0 counters 43 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1490 0 iov 0 0K 12K 78643K 20 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1375 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 29 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 175 0 sigio 0 0K 0K 78643K 3 0 proc 61 63K 95K 78643K 463 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 10 0 in_multi 46 2K 2K 78643K 56 0 ether_multi 1 0K 0K 78643K 4 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 220 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 121 38K 38K 78643K 1504 0 UVM aobj 11 4K 5K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 19 0 NDP 8 0K 0K 78643K 16 0 temp 83 3847K 3911K 78643K 5286 0 kqueue 3 4K 8K 78643K 5 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 47 0 1 2 0 2 2 0 8 0 unpcb 120 183 0 173 1 0 1 1 0 8 0 syncache 264 8 0 8 2 1 1 1 0 8 1 tcpqe 32 219 0 219 1 1 0 1 0 8 0 tcpcb 544 56 0 52 1 0 1 1 0 8 0 inpcb 280 261 0 254 2 0 2 2 0 8 1 nd6 48 7 0 0 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 2 0 2 1 0 1 1 0 8 1 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 7 0 5 1 0 1 1 0 8 0 pfstitem 24 31 0 0 1 0 1 1 0 8 0 pfstkey 112 31 0 0 1 0 1 1 0 8 0 pfstate 328 31 0 0 3 0 3 3 0 8 0 pfrule 1360 25 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 212 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 46 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 11 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1628 0 221 89 0 89 89 0 8 0 ffsino 272 1628 0 221 95 0 95 95 0 8 0 nchpl 144 2068 0 456 60 0 60 60 0 8 0 uvmvnodes 72 1804 0 0 33 0 33 33 0 8 0 vnodes 208 1804 0 0 95 0 95 95 0 8 0 namei 1024 5632 0 5632 1 0 1 1 0 8 1 percpumem 16 36 0 4 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 2 1 0 1 1 0 8 0 scxspl 192 6201 0 6201 8 1 7 7 0 8 7 plimitpl 152 20 0 12 1 0 1 1 0 8 0 sigapl 424 392 0 359 4 0 4 4 0 8 0 futexpl 56 2577 0 2577 1 0 1 1 0 8 1 knotepl 112 65 0 46 1 0 1 1 0 8 0 kqueuepl 144 20 0 18 1 0 1 1 0 8 0 pipepl 304 101 0 91 2 0 2 2 0 8 1 fdescpl 496 376 0 359 4 1 3 3 0 8 0 filepl 152 2241 0 2139 5 0 5 5 0 8 1 lockfpl 104 22 0 21 1 0 1 1 0 8 0 lockfspl 48 9 0 8 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 261 0 252 1 0 1 1 0 8 0 zombiepl 144 360 0 359 1 0 1 1 0 8 0 processpl 984 392 0 359 5 0 5 5 0 8 0 procpl 624 737 0 693 4 0 4 4 0 8 0 sosppl 128 8 0 8 1 0 1 1 0 8 1 sockpl 400 466 0 447 4 0 4 4 0 8 2 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 168 0 0 20 0 20 20 0 8 0 mtagpl 80 16 0 0 1 0 1 1 0 8 0 mbufpl 256 203 0 0 14 1 13 13 0 8 0 bufpl 280 3717 0 135 256 0 256 256 0 8 0 anonpl 16 48394 0 32630 65 1 64 64 0 124 0 amapchunkpl 152 1886 0 1720 9 0 9 9 0 158 2 amappl16 192 1438 0 592 43 0 43 43 0 8 0 amappl15 184 68 0 66 2 1 1 1 0 8 0 amappl14 176 110 0 102 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 89 0 85 1 0 1 1 0 8 0 amappl11 152 123 0 105 1 0 1 1 0 8 0 amappl10 144 18 0 12 1 0 1 1 0 8 0 amappl9 136 388 0 387 1 0 1 1 0 8 0 amappl8 128 345 0 316 2 0 2 2 0 8 0 amappl7 120 118 0 107 1 0 1 1 0 8 0 amappl6 112 87 0 84 1 0 1 1 0 8 0 amappl5 104 140 0 122 1 0 1 1 0 8 0 amappl4 96 639 0 608 1 0 1 1 0 8 0 amappl3 88 187 0 180 1 0 1 1 0 8 0 amappl2 80 2052 0 1975 2 0 2 2 0 8 0 amappl1 72 18226 0 17759 23 12 11 18 0 8 1 amappl 80 986 0 937 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 12 0 2 1 0 1 1 0 8 0 uaddrrnd 24 377 0 359 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 377 0 359 1 0 1 1 0 8 0 vmmpekpl 168 7179 0 7142 2 0 2 2 0 8 0 vmmpepl 168 52412 0 50296 115 3 112 112 0 357 20 vmsppl 368 376 0 359 2 0 2 2 0 8 0 pdppl 4096 761 0 719 6 0 6 6 0 8 0 pvpl 32 164109 0 145128 162 0 162 162 0 265 8 pmappl 232 376 0 359 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 0 4 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(ffffffff823f21dc) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800020ed5470,ffff800000aa57a0,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pf_map_addr(0,ffff800000aa5558,ffff800020ed5738,ffff800020ed5470,ffff800020ed5380,ffff800020ed55d8) at pf_map_addr+0x3f7 sys/net/pf_lb.c:393 pf_get_sport(ffff800020ed5720,ffff800000aa5558,ffff800020ed5470,ffff800020ed5496,0,0) at pf_get_sport+0xc7 sys/net/pf_lb.c:159 pf_get_transaddr_af(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8) at pf_get_transaddr_af+0x154 sys/net/pf_lb.c:733 pf_get_transaddr(ffff800000aa5558,ffff800020ed5720,ffff800020ed55d8,ffff800020ed5600) at pf_get_transaddr+0x89 sys/net/pf_lb.c:657 pf_test_rule(ffff800020ed5720,ffff800020ed5810,ffff800020ed5820,ffff800020ed5800,ffff800020ed57e8,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(2,1,ffff800000ac3000,ffff800020ed5938) at pf_test+0x1909 sys/net/pf.c:7101 ip_input_if(ffff800020ed5938,ffff800020ed5944,4,0,ffff800000ac3000) at ip_input_if+0x59e sys/netinet/ip_input.c:316 ipv4_input(ffff800000ac3000,fffffd806d4a2300) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff800000ac3000,fffffd806d4a2300,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d if_ih_input sys/net/if.c:908 [inline] if_vinput(ffff800000ac3000,fffffd806d4a2300) at if_vinput+0x10d sys/net/if.c:969 tun_dev_write(5d00,ffff800020ed5d08,f9,2) at tun_dev_write+0x1fc sys/net/if_tun.c:871 spec_write(ffff800020ed5b50) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e593688,ffff800020ed5d08,11,fffffd807f7bf660) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd80669ca7d0,ffff800020ed5d08,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e464f8,f0,ffff800020ed5d08,0,ffff800020ed5df0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e464f8,ffff800020ed5da0,ffff800020ed5df0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020ed5e70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed5e70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf47630b50d0, count: -22 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 syscall(ffff8000230fb170) at syscall+0xad sys/arch/amd64/amd64/trap.c:516 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffec2e0, count: 10 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 syscall(ffff8000230fb170) at syscall+0xad sys/arch/amd64/amd64/trap.c:516 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffec2e0, count: -5