uvm_fault(0xfffffd806e39f1d8, 0x4, 0, 1) -> e kernel: page fault trap, code=0 Stopped at igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND 105140 18791 0 0 0 1 syz-executor.6 igmp_leavegroup(ffff800000045880,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000045880) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d87350) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1794 in_pcbdetach(fffffd806f544a10) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd8071648200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd8071648200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd8071648200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd8065a81150,ffff800021237330) at soo_close+0x44 fdrop(fffffd8065a81150,ffff800021237330) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8065a81150,ffff800021237330) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021237330) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021237330,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021237330,ffff800029575b60,ffff800029575bb0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029575c30) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029575c30) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78891bbf9c70, count: 1 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(0xfffffd806e39f1d8, 0x4, 0, 1) -> e ddb{0}> trace igmp_leavegroup(ffff800000045880,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000045880) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d87350) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1794 in_pcbdetach(fffffd806f544a10) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd8071648200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd8071648200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd8071648200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd8065a81150,ffff800021237330) at soo_close+0x44 fdrop(fffffd8065a81150,ffff800021237330) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8065a81150,ffff800021237330) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021237330) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021237330,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021237330,ffff800029575b60,ffff800029575bb0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029575c30) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029575c30) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78891bbf9c70, count: -14 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000295757f0 rbx 0x3 rdx 0 rcx 0x1 rax 0 r8 0 r9 0 r10 0x911293c990ffc5a9 r11 0xe022ec55563975ea r12 0 r13 0x3 r14 0xffff800000045880 r15 0xffff8000006b8000 rip 0xffffffff8170d38f igmp_leavegroup+0xaf cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000295757c0 ss 0x10 igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d ddb{0}> show proc PROC (syz-executor.4) pid=153375 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800021236b08,0xffff8000212378b0 process=0xffff8000212b4880 user=0xffff800029570000, vmspace=0xfffffd806e39f1d8 estcpu=32, cpticks=2, pctcpu=0.1 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82947 382084 1674 0 2 0 syz-executor.0 82947 234328 1674 0 2 0x4000000 syz-executor.0 88672 451675 7252 0 2 0 syz-executor.2 88672 19458 7252 0 2 0x4000000 syz-executor.2 88672 368057 7252 0 3 0x4000080 fsleep syz-executor.2 68101 94070 56110 0 2 0 syz-executor.3 68101 438777 56110 0 3 0x4000080 fsleep syz-executor.3 68101 63051 56110 0 3 0x4000080 fsleep syz-executor.3 18791 105140 52375 0 7 0 syz-executor.6 18791 371378 52375 0 3 0x4000000 smrbar syz-executor.6 10035 8094 22194 0 2 0 syz-executor.1 10035 222489 22194 0 3 0x4000080 fsleep syz-executor.1 10035 221018 22194 0 2 0x4000000 syz-executor.1 10035 252477 22194 0 2 0x4000000 syz-executor.1 46245 218967 37505 0 2 0 syz-executor.7 46245 228929 37505 0 3 0x4000080 fsleep syz-executor.7 46245 321147 37505 0 3 0x4000080 fsleep syz-executor.7 43037 217950 51078 0 3 0x82 nanoslp syz-executor.5 99884 195636 1 0 3 0x100083 ttyin getty 1674 18549 51078 0 2 0x2 syz-executor.0 56110 238976 51078 0 2 0x482 syz-executor.3 52375 149575 51078 0 2 0x482 syz-executor.6 20328 95192 0 0 3 0x14200 acct acct 7252 347985 51078 0 2 0x2 syz-executor.2 20133 229649 0 0 3 0x14280 nfsidl nfsio 12619 453226 0 0 3 0x14280 nfsidl nfsio 5080 10219 0 0 3 0x14280 nfsidl nfsio 14961 212126 0 0 3 0x14280 nfsidl nfsio 39917 163173 0 0 3 0x14280 nfsidl nfsio 81513 11931 0 0 3 0x14280 nfsidl nfsio 37678 6997 0 0 3 0x14280 nfsidl nfsio 20010 183524 0 0 3 0x14280 nfsidl nfsio 82832 73515 0 0 3 0x14280 nfsidl nfsio 80636 283560 0 0 3 0x14280 nfsidl nfsio 23287 129001 0 0 3 0x14280 nfsidl nfsio 28587 15012 0 0 3 0x14280 nfsidl nfsio 49586 302082 0 0 3 0x14280 nfsidl nfsio 30966 269358 0 0 3 0x14280 nfsidl nfsio 13673 410854 0 0 3 0x14280 nfsidl nfsio 29730 414322 0 0 3 0x14280 nfsidl nfsio 62504 356045 0 0 3 0x14280 nfsidl nfsio 34060 75405 0 0 3 0x14280 nfsidl nfsio 3248 461619 0 0 3 0x14280 nfsidl nfsio 25571 251678 0 0 3 0x14280 nfsidl nfsio 4568 348857 51078 0 2 0x482 syz-executor.4 8318 337015 0 0 3 0x14200 bored sosplice 37505 166351 51078 0 2 0x482 syz-executor.7 22194 371328 51078 0 3 0x82 nanoslp syz-executor.1 51078 188421 8184 0 3 0x82 wait syz-fuzzer 51078 487795 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 412269 8184 0 3 0x4000082 wait syz-fuzzer 51078 281268 8184 0 3 0x4000082 wait syz-fuzzer 51078 230049 8184 0 3 0x4000082 wait syz-fuzzer 51078 55760 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 81751 8184 0 3 0x4000082 wait syz-fuzzer 51078 522435 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 474337 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 149298 8184 0 3 0x4000082 wait syz-fuzzer 51078 311564 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 344164 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 252532 8184 0 3 0x4000082 thrsleep syz-fuzzer 51078 24797 8184 0 3 0x4000082 wait syz-fuzzer 51078 518237 8184 0 3 0x4000082 kqread syz-fuzzer 51078 39539 8184 0 3 0x4000082 wait syz-fuzzer 8184 72901 61173 0 3 0x10008a sigsusp ksh 61173 18219 13810 0 3 0x9a kqread sshd 13810 325541 1 0 3 0x88 kqread sshd 44879 520736 39077 74 3 0x1100092 bpf pflogd 39077 452398 1 0 3 0x80 netio pflogd 72806 474063 42174 73 3 0x1100090 kqread syslogd 42174 261936 1 0 3 0x100082 netio syslogd 8735 328434 1 0 3 0x100080 kqread resolvd 48438 252160 70108 77 3 0x100092 kqread dhcpleased 9304 153554 70108 77 3 0x100092 kqread dhcpleased 70108 177502 1 0 3 0x80 kqread dhcpleased 21304 89728 0 0 3 0x14200 bored smr 13211 218573 0 0 2 0x14200 zerothread 78859 350010 0 0 3 0x14200 aiodoned aiodoned 32758 373437 0 0 3 0x14200 syncer update 28529 74505 0 0 3 0x14200 cleaner cleaner 5541 338888 0 0 3 0x14200 reaper reaper 23791 286846 0 0 3 0x14200 pgdaemon pagedaemon 4326 353771 0 0 3 0x14200 bored viomb 59438 332911 0 0 3 0x40014200 acpi0 acpi0 7048 211061 0 0 3 0x40014200 idle1 44638 233004 0 0 3 0x14200 bored softnet 35680 455920 0 0 3 0x14200 bored softnet 88060 281016 0 0 3 0x14200 bored softnet 12416 202550 0 0 3 0x14200 bored softnet 67041 114942 0 0 3 0x14200 bored systqmp 43880 71617 0 0 3 0x14200 bored systq 36133 87650 0 0 2 0x40014200 softclock 20415 494646 0 0 3 0x40014200 idle0 1 42679 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 18791 (syz-executor.6) thread 0xffff8000211f2580 (371378) exclusive rwlock clonelk r = 0 (0xffffffff82bd5ed0) #0 witness_lock+0x44d #1 if_clone_destroy+0x4d #2 ifioctl+0x3ca #3 sys_ioctl+0x4a2 #4 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #4 syscall+0x606 sys/arch/amd64/amd64/trap.c:632 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 6483K 8198K 78643K 13462 0 pcb 13 14K 16K 78643K 832 0 rtable 166 15K 16K 78643K 905 0 ifaddr 73 24K 26K 78643K 385 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 36K 78643K 256 0 ioctlops 0 0K 4K 78643K 1830 0 iov 0 0K 36K 78643K 654 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1503 94K 95K 78643K 3312 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 34 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 88 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 17 61K 85K 78643K 3697 0 sigio 0 0K 0K 78643K 25 0 proc 71 91K 115K 78643K 886 0 subproc 104 6K 6K 78643K 221 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 1K 78643K 2891 0 in_multi 58 3K 6K 78643K 904 0 ether_multi 1 0K 0K 78643K 24 0 mrt 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 169 758K 758K 78643K 169 0 exec 0 0K 1K 78643K 854 0 pfkey data 0 0K 0K 78643K 2 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 408 94K 108K 78643K 38274 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 119 0 NDP 13 0K 1K 78643K 128 0 temp 133 5858K 6869K 78643K 21252 0 kqueue 12 18K 24K 78643K 235 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 267 0 264 3 2 1 3 0 8 0 rtentry 112 259 0 192 4 0 4 4 0 8 0 unpcb 144 2119 0 2098 24 23 1 8 0 8 0 syncache 296 10 0 10 2 2 0 1 0 8 0 tcpqe 32 158 0 158 2 2 0 1 0 8 0 tcpcb 776 923 0 919 31 23 8 8 0 8 7 arp 120 40 0 28 1 0 1 1 0 8 0 inpcb 368 6116 0 6106 70 63 7 14 0 8 6 nd6 136 57 0 40 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 mppekey 1024 6 0 6 2 2 0 1 0 8 0 ppxss 1256 65 0 65 7 6 1 1 0 8 1 pppxif 1456 11 0 11 4 4 0 1 0 8 0 pfstscr 40 62 0 61 1 0 1 1 0 8 0 pffrag 232 42 0 41 2 1 1 1 0 482 0 pffrnode 88 42 0 41 2 1 1 1 0 8 0 pffrent 40 85 0 84 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 pfanchor 1288 723 9 211 44 1 43 43 0 8 0 pfqueue 264 77 0 77 2 2 0 1 0 8 0 pfstitem 24 141 0 137 1 0 1 1 0 8 0 pfstkey 128 237 0 232 2 0 2 2 0 8 1 pfstate 384 186 0 183 10 7 3 10 0 8 1 pfrule 1344 21 0 20 2 1 1 2 0 8 0 art_heap8 4096 4 0 3 3 2 1 2 0 8 0 art_heap4 256 1170 0 870 34 10 24 29 0 8 0 art_table 32 1174 0 873 4 0 4 4 0 8 0 art_node 16 255 0 197 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 19 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 81 0 71 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6170 0 4731 91 0 91 91 0 8 0 ffsino 272 6170 0 4731 97 0 97 97 0 8 0 nchpl 144 11020 0 9361 63 0 63 63 0 8 0 rtmask 32 7 0 7 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 36382 0 36382 3 2 1 2 0 8 1 percpumem 16 141 0 100 1 0 1 1 0 8 0 kstatmem 264 180 0 154 2 0 2 2 0 8 0 scxspl 216 30946 0 30946 13 12 1 8 0 8 1 plimitpl 152 503 0 487 1 0 1 1 0 8 0 sigapl 424 4021 0 3951 10 2 8 8 0 8 0 futexpl 64 33051 0 33045 2 1 1 1 0 8 0 knotepl 120 445 0 0 11 0 11 11 0 8 0 kqueuepl 216 796 0 788 21 16 5 5 0 8 4 pipepl 320 778 0 750 19 16 3 8 0 8 0 fdescpl 496 3982 0 3952 5 1 4 5 0 8 0 filepl 152 24955 0 24708 44 29 15 19 0 8 5 lockfpl 104 898 0 896 3 2 1 2 0 8 0 lockfspl 48 204 0 202 1 0 1 1 0 8 0 sessionpl 144 34 0 17 1 0 1 1 0 8 0 pgrppl 48 211 0 194 1 0 1 1 0 8 0 ucredpl 104 2440 0 2428 1 0 1 1 0 8 0 zombiepl 144 3953 0 3951 1 0 1 1 0 8 0 processpl 1072 4021 0 3951 5 0 5 5 0 8 0 procpl 696 10299 0 10203 13 3 10 10 0 8 1 srpgc 96 18 0 18 6 5 1 1 0 8 1 sosppl 168 10 0 10 4 4 0 1 0 8 0 sockpl 488 8517 0 8483 151 139 12 30 0 8 7 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 18 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 391 0 0 48 0 48 48 0 8 0 mtagpl 96 166 0 0 4 0 4 4 0 8 0 mbufpl 256 1095 0 0 60 0 60 60 0 8 0 bufpl 288 8416 0 2102 452 0 452 452 0 8 0 anonpl 24 531207 0 514720 146 40 106 122 0 186 0 amapchunkpl 152 121825 0 120761 71 23 48 49 0 158 5 amappl16 200 11782 0 11324 49 24 25 37 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 220 0 206 2 1 1 2 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 4798 0 4765 4 2 2 3 0 8 0 amappl11 160 63 0 49 1 0 1 1 0 8 0 amappl10 152 40 0 30 1 0 1 1 0 8 0 amappl9 144 198 0 198 4 3 1 2 0 8 1 amappl8 136 308 0 233 3 0 3 3 0 8 0 amappl7 128 90 0 71 1 0 1 1 0 8 0 amappl6 120 749 0 728 2 1 1 2 0 8 0 amappl5 112 248 0 238 1 0 1 1 0 8 0 amappl4 104 872 0 829 3 1 2 3 0 8 0 amappl3 96 23777 0 23675 4 1 3 3 0 8 0 amappl2 88 4373 0 4303 3 1 2 3 0 8 0 amappl1 80 23227 0 22673 23 9 14 23 0 8 0 amappl 88 37573 0 37296 7 0 7 7 0 92 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 3982 0 3952 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3982 0 3952 1 0 1 1 0 8 0 vmmpekpl 168 34104 0 34028 4 0 4 4 0 8 0 vmmpepl 168 257760 0 255218 195 68 127 133 0 357 13 vmsppl 456 3981 0 3952 5 1 4 5 0 8 0 rwobjpl 56 73734 0 66071 112 3 109 109 0 8 0 pdppl 4096 7972 0 7904 318 248 70 80 0 8 2 pvpl 32 1348000 0 1324968 360 172 188 359 0 265 0 pmappl 248 3981 0 3952 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1203 0 335 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace igmp_leavegroup(ffff800000045880,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000045880) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d87350) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1794 in_pcbdetach(fffffd806f544a10) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd8071648200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd8071648200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd8071648200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd8065a81150,ffff800021237330) at soo_close+0x44 fdrop(fffffd8065a81150,ffff800021237330) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8065a81150,ffff800021237330) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021237330) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021237330,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021237330,ffff800029575b60,ffff800029575bb0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029575c30) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029575c30) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78891bbf9c70, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7684bff7ba60, count: 12 ddb{1}> trace x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7684bff7ba60, count: -3