kernel: page fault trap, code=0 Stopped at igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND 398272 39296 0 0 0 1 syz-executor.1 igmp_leavegroup(ffff800000d4b580,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d4b580) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000d75c60) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53d730) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589 udp_detach(fffffd806d725200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806d725200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806d725200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd807e24ec90,ffff800021294850) at soo_close+0x44 fdrop(fffffd807e24ec90,ffff800021294850) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd807e24ec90,ffff800021294850) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021294850) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021294850,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021294850,ffff80002af97a50,ffff80002af97aa0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002af97b20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002af97b20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c1e72d130b0, 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(0xfffffd8069cc6018, 0x4, 0, 1) -> e ddb{0}> trace igmp_leavegroup(ffff800000d4b580,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d4b580) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000d75c60) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53d730) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589 udp_detach(fffffd806d725200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806d725200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806d725200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd807e24ec90,ffff800021294850) at soo_close+0x44 fdrop(fffffd807e24ec90,ffff800021294850) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd807e24ec90,ffff800021294850) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021294850) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021294850,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021294850,ffff80002af97a50,ffff80002af97aa0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002af97b20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002af97b20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c1e72d130b0, count: -14 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002af976e0 rbx 0x8 rdx 0 rcx 0x1 rax 0 r8 0 r9 0 r10 0xf5831d0797411629 r11 0x55e2f13f2c51dd1d r12 0 r13 0x3 r14 0xffff800000d4b580 r15 0xffff8000006b8000 rip 0xffffffff81ab0ebf igmp_leavegroup+0xaf cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002af976b0 ss 0x10 igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d ddb{0}> show proc PROC (syz-executor.7) pid=73375 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=85, nice=20 forw=0xffffffffffffffff, list=0xffff8000212b18c8,0xffff8000212945a8 process=0xffff8000ffff3260 user=0xffff80002af92000, vmspace=0xfffffd8069cc6018 estcpu=35, cpticks=3, pctcpu=1.5 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86158 441261 57200 0 2 0x480 syz-executor.6 86158 37433 57200 0 3 0x4000080 fsleep syz-executor.6 57708 368914 21051 0 2 0 syz-executor.2 57708 10937 21051 0 3 0x4000080 fsleep syz-executor.2 57708 234165 21051 0 2 0x4000000 syz-executor.2 55466 100286 13998 0 2 0x480 syz-executor.3 55466 338216 13998 0 3 0x4000080 fsleep syz-executor.3 55466 471159 13998 0 3 0x4000080 fsleep syz-executor.3 55466 179043 13998 0 3 0x4000080 fsleep syz-executor.3 39296 398272 58732 0 7 0 syz-executor.1 39296 326226 58732 0 3 0x4000080 fsleep syz-executor.1 11447 362221 0 0 3 0x14280 nfsidl nfsio 65775 85394 0 0 3 0x14280 nfsidl nfsio 76138 523965 0 0 3 0x14280 nfsidl nfsio 26699 405751 0 0 3 0x14280 nfsidl nfsio 29775 65130 0 0 3 0x14280 nfsidl nfsio 97066 326357 0 0 3 0x14280 nfsidl nfsio 72730 468377 0 0 3 0x14280 nfsidl nfsio 61013 463117 0 0 3 0x14280 nfsidl nfsio 28017 409990 0 0 3 0x14280 nfsidl nfsio 38021 219325 0 0 3 0x14280 nfsidl nfsio 42785 148405 0 0 3 0x14280 nfsidl nfsio 93383 39792 0 0 3 0x14280 nfsidl nfsio 40995 87619 0 0 3 0x14280 nfsidl nfsio 27861 182642 0 0 3 0x14280 nfsidl nfsio 47102 98628 0 0 3 0x14280 nfsidl nfsio 56034 442585 0 0 3 0x14280 nfsidl nfsio 3769 188176 0 0 3 0x14280 nfsidl nfsio 90707 489536 0 0 3 0x14280 nfsidl nfsio 91249 252263 0 0 3 0x14280 nfsidl nfsio 39255 313406 0 0 3 0x14280 nfsidl nfsio 13998 202239 16464 0 2 0x482 syz-executor.3 30825 242010 0 0 3 0x14200 bored sosplice 18772 100674 1 0 3 0x100083 ttyin getty 79777 4559 16464 0 2 0x482 syz-executor.7 57200 91604 16464 0 2 0x482 syz-executor.6 31855 70057 16464 0 2 0x482 syz-executor.5 65764 270825 16464 0 2 0x482 syz-executor.4 21051 492658 16464 0 2 0x482 syz-executor.2 58732 459624 16464 0 2 0x482 syz-executor.1 31878 168488 16464 0 3 0x82 piperd syz-executor.0 16464 168104 24195 0 3 0x82 wait syz-fuzzer 16464 22993 24195 0 3 0x4000082 thrsleep syz-fuzzer 16464 128588 24195 0 3 0x4000082 wait syz-fuzzer 16464 389040 24195 0 3 0x4000082 thrsleep syz-fuzzer 16464 257434 24195 0 3 0x4000082 wait syz-fuzzer 16464 81840 24195 0 3 0x4000082 thrsleep syz-fuzzer 16464 372404 24195 0 3 0x4000082 wait syz-fuzzer 16464 171175 24195 0 3 0x4000082 thrsleep syz-fuzzer 16464 333515 24195 0 3 0x4000082 wait syz-fuzzer 16464 120770 24195 0 3 0x4000082 wait syz-fuzzer 16464 13861 24195 0 3 0x4000082 thrsleep syz-fuzzer 16464 256292 24195 0 3 0x4000082 kqread syz-fuzzer 16464 323815 24195 0 3 0x4000082 wait syz-fuzzer 16464 52282 24195 0 3 0x4000082 wait syz-fuzzer 16464 316106 24195 0 3 0x4000082 thrsleep syz-fuzzer 24195 368247 20719 0 3 0x10008a sigsusp ksh 20719 507867 33518 0 3 0x9a kqread sshd 33518 337222 1 0 3 0x88 kqread sshd 45423 472929 96837 74 3 0x1100092 bpf pflogd 96837 360773 1 0 3 0x80 netio pflogd 96795 26236 43552 73 3 0x1100090 kqread syslogd 43552 92574 1 0 3 0x100082 netio syslogd 70661 359553 1 0 3 0x100080 kqread resolvd 24318 145226 69912 77 3 0x100092 kqread dhcpleased 63496 157934 69912 77 3 0x100092 kqread dhcpleased 69912 21827 1 0 3 0x80 kqread dhcpleased 85249 232165 0 0 3 0x14200 bored smr 51382 89198 0 0 2 0x14200 zerothread 25470 122513 0 0 3 0x14200 aiodoned aiodoned 88277 370364 0 0 3 0x14200 syncer update 98156 16753 0 0 3 0x14200 cleaner cleaner 31715 314079 0 0 3 0x14200 reaper reaper 18349 423374 0 0 3 0x14200 pgdaemon pagedaemon 59809 132920 0 0 3 0x14200 bored viomb 18181 105620 0 0 3 0x40014200 acpi0 acpi0 92835 431301 0 0 3 0x40014200 idle1 7644 415516 0 0 3 0x14200 bored softnet3 33116 10690 0 0 3 0x14200 bored softnet2 63815 180147 0 0 3 0x14200 bored softnet1 78724 466105 0 0 3 0x14200 bored softnet0 83494 394504 0 0 3 0x14200 bored systqmp 62377 188643 0 0 3 0x14200 bored systq 58236 292443 0 0 3 0x40014200 bored softclock 48693 405539 0 0 3 0x40014200 idle0 1 74403 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 39296 (syz-executor.1) thread 0xffff800021294598 (398272) shared rwlock vmmaplk r = 0 (0xfffffd806efdc670) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x89 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x229 sys/arch/amd64/amd64/trap.c:445 #6 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10335 6555K 6686K 78643K 12444 0 pcb 13 12K 14K 78643K 205 0 rtable 216 9K 9K 78643K 449 0 ifaddr 75 24K 25K 78643K 140 0 ifgroup 55 2K 2K 78643K 103 0 sysctl 2 0K 0K 78643K 2 0 counters 60 35K 36K 78643K 100 0 ioctlops 0 0K 4K 78643K 1603 0 iov 0 0K 24K 78643K 84 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1379 86K 86K 78643K 1815 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 15 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 513 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 93K 78643K 1631 0 sigio 0 0K 0K 78643K 474 0 proc 70 91K 116K 78643K 709 0 subproc 104 6K 6K 78643K 117 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 1K 78643K 1109 0 in_multi 91 6K 7K 78643K 272 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 157 705K 705K 78643K 157 0 exec 0 0K 1K 78643K 711 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 367 87K 102K 78643K 18220 0 UVM aobj 25 5K 5K 78643K 28 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 96 0 NDP 12 0K 2K 78643K 44 0 temp 74 5864K 6888K 78643K 8879 0 kqueue 12 18K 24K 78643K 168 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 96 0 93 2 1 1 2 0 8 0 rtentry 112 139 0 43 4 0 4 4 0 8 0 unpcb 144 832 0 813 13 7 6 6 0 8 5 syncache 296 7 0 7 2 2 0 1 0 8 0 tcpqe 32 27 0 27 2 2 0 1 0 8 0 tcpcb 776 230 0 226 11 7 4 4 0 8 3 arp 120 21 0 4 1 0 1 1 0 8 0 inpcb 368 1688 0 1679 29 20 9 13 0 8 8 nd6 136 28 0 4 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1256 13 0 13 2 2 0 1 0 8 0 pppxif 1456 4 0 4 2 2 0 1 0 8 0 pfstscr 40 6 0 6 1 1 0 1 0 8 0 pffrag 232 35 0 35 1 1 0 1 0 482 0 pffrnode 88 35 0 35 1 1 0 1 0 8 0 pffrent 40 72 0 72 1 1 0 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 pfstitem 24 56 0 45 1 0 1 1 0 8 0 pfstkey 128 60 0 43 2 0 2 2 0 8 0 pfstate 384 54 0 43 3 1 2 3 0 8 0 pfrule 1344 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 256 574 0 179 30 4 26 29 0 8 0 art_table 32 575 0 179 4 0 4 4 0 8 0 art_node 16 136 0 51 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semapl 112 511 0 501 1 0 1 1 0 8 0 shmpl 112 25 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3432 0 1973 92 0 92 92 0 8 0 ffsino 272 3432 0 1973 98 0 98 98 0 8 0 nchpl 144 5763 0 5234 63 40 23 63 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 3947 0 0 81 0 81 81 0 8 0 vnodes 216 3947 0 0 220 0 220 220 0 8 0 namei 1024 18645 0 18645 3 2 1 2 0 8 1 percpumem 16 63 0 20 1 0 1 1 0 8 0 kstatmem 264 52 0 28 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 21671 0 21671 13 10 3 8 0 8 3 plimitpl 152 241 0 225 1 0 1 1 0 8 0 sigapl 424 1964 0 1896 10 2 8 8 0 8 0 futexpl 64 12603 0 12597 1 0 1 1 0 8 0 knotepl 120 565 0 0 17 0 17 17 0 8 0 kqueuepl 216 351 0 343 11 8 3 5 0 8 2 pipepl 320 832 0 804 18 15 3 11 0 8 0 fdescpl 496 1926 0 1898 5 0 5 5 0 8 0 filepl 152 10538 0 10293 36 21 15 19 0 8 3 lockfpl 104 378 0 376 1 0 1 1 0 8 0 lockfspl 48 96 0 94 1 0 1 1 0 8 0 sessionpl 144 26 0 9 1 0 1 1 0 8 0 pgrppl 48 29 0 12 1 0 1 1 0 8 0 ucredpl 104 816 0 804 1 0 1 1 0 8 0 zombiepl 144 1899 0 1896 1 0 1 1 0 8 0 processpl 1072 1964 0 1896 5 0 5 5 0 8 0 procpl 696 4685 0 4596 12 3 9 9 0 8 0 sosppl 168 9 0 9 2 1 1 1 0 8 1 sockpl 488 2616 0 2585 61 49 12 21 0 8 7 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 13 0 0 2 0 2 2 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 19 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 494 0 0 61 0 61 61 0 8 0 mtagpl 96 29 0 0 1 0 1 1 0 8 0 mbufpl 256 495 0 0 31 0 31 31 0 8 0 bufpl 288 6399 0 219 442 0 442 442 0 8 0 anonpl 24 327830 0 311544 148 35 113 133 0 186 0 amapchunkpl 152 59029 0 58071 64 21 43 51 0 158 2 amappl16 200 8017 0 7510 43 15 28 40 0 8 1 amappl15 192 14 0 13 1 0 1 1 0 8 0 amappl14 184 162 0 149 2 1 1 2 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 2590 0 2561 4 2 2 3 0 8 0 amappl11 160 57 0 42 1 0 1 1 0 8 0 amappl10 152 39 0 27 1 0 1 1 0 8 0 amappl9 144 181 0 180 3 2 1 2 0 8 0 amappl8 136 226 0 161 3 0 3 3 0 8 0 amappl7 128 67 0 50 1 0 1 1 0 8 0 amappl6 120 267 0 249 2 1 1 2 0 8 0 amappl5 112 161 0 152 1 0 1 1 0 8 0 amappl4 104 685 0 644 2 0 2 2 0 8 0 amappl3 96 11569 0 11478 4 1 3 3 0 8 0 amappl2 88 2216 0 2151 3 1 2 3 0 8 0 amappl1 80 15280 0 14732 23 9 14 23 0 8 0 amappl 88 17634 0 17384 8 1 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 27 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1927 0 1899 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1927 0 1899 1 0 1 1 0 8 0 vmmpekpl 168 22526 0 22470 3 0 3 3 0 8 0 vmmpepl 168 135013 0 132610 148 36 112 127 0 357 1 vmsppl 464 1926 0 1899 5 0 5 5 0 8 0 rwobjpl 56 43148 0 37560 83 4 79 79 0 8 0 pdppl 4096 3862 0 3798 186 118 68 84 0 8 4 pvpl 32 788317 0 766283 308 88 220 307 0 265 27 pmappl 248 1926 0 1899 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 991 0 149 25 0 25 25 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace igmp_leavegroup(ffff800000d4b580,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d4b580) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000d75c60) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53d730) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589 udp_detach(fffffd806d725200) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806d725200,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806d725200,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd807e24ec90,ffff800021294850) at soo_close+0x44 fdrop(fffffd807e24ec90,ffff800021294850) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd807e24ec90,ffff800021294850) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff800021294850) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff800021294850,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:197 sys_exit(ffff800021294850,ffff80002af97a50,ffff80002af97aa0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002af97b20) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002af97b20) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c1e72d130b0, 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 __mp_lock(ffffffff82cb01c0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb01c0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd806efdc578,a6410425000,0,1) at uvm_fault+0x181 sys/uvm/uvm_fault.c:623 upageflttrap(ffff80002e41dd40,a6410425000) at upageflttrap+0x89 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002e41dd40) at usertrap+0x229 sys/arch/amd64/amd64/trap.c:445 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77de33d99960, count: 7 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 __mp_lock(ffffffff82cb01c0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb01c0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd806efdc578,a6410425000,0,1) at uvm_fault+0x181 sys/uvm/uvm_fault.c:623 upageflttrap(ffff80002e41dd40,a6410425000) at upageflttrap+0x89 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002e41dd40) at usertrap+0x229 sys/arch/amd64/amd64/trap.c:445 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77de33d99960, count: -8