uvm_fault(0xffffffff83a56830, 0xffff80000160804a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *503725 84530 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd806c8e2b40) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c8e2b40) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80002ccb8ed0,0,ffff80002ccb8e40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001605900,ffff80002ccb8f78,ffff80002ccb8ed0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd807cbcf100,ffff800001595370) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800001595370,fffffd807cbcf100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001595370,0,ffff80002ccb9128,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c02b0,3,ffff80002ccb9220,808,ffff80002ccb92c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c02b0,ffff80002ccb9370,ffff80002ccb92c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80002ccb9370) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccb9370) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57c9aa288a0, count: 5 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xffffffff83a56830, 0xffff80000160804a, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c8e2b40) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c8e2b40) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80002ccb8ed0,0,ffff80002ccb8e40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001605900,ffff80002ccb8f78,ffff80002ccb8ed0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd807cbcf100,ffff800001595370) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800001595370,fffffd807cbcf100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001595370,0,ffff80002ccb9128,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c02b0,3,ffff80002ccb9220,808,ffff80002ccb92c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c02b0,ffff80002ccb9370,ffff80002ccb92c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80002ccb9370) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002ccb9370) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57c9aa288a0, count: -10 ddb> show registers rdi 0xffff80002a8b4000 rsi 0x895 rbp 0xffff80002ccb8d20 rbx 0xde rdx 0xffff80002a8b4000 rcx 0xffff800001607f60 rax 0xfffffd807ece14e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xfdf8e7358f2eb012 r11 0x1d021dc46d0eb639 r12 0x17 r13 0xfffffd807ece1400 r14 0xfffffd806c8e2b40 r15 0xffff8000002a2058 rip 0xffffffff81d50734 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002ccb8ca0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=503725 pid=84530 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=0xffff80002f0c0d10,0xffff8000380dba20 process=0xffff80003c95a8a0 user=0xffff80002ccb4000, vmspace=0xfffffd800dfe3748 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 7118 146775 30268 0 2 0 syz-executor 7118 379453 30268 0 3 0x4000080 fsleep syz-executor 28641 385516 3206 0 2 0 syz-executor 28641 207299 3206 0 3 0x4000080 fsleep syz-executor 84530 246522 81885 0 2 0 syz-executor *84530 503725 81885 0 7 0x4000000 syz-executor 26356 171441 79509 0 2 0 syz-executor 26356 198389 79509 0 3 0x4000080 fsleep syz-executor 11014 98243 41668 0 2 0 syz-executor 11014 69509 41668 0 3 0x4000080 fsleep syz-executor 17027 148537 34716 0 2 0 syz-executor 17027 269048 34716 0 3 0x4000080 fsleep syz-executor 48125 190146 73138 0 2 0 syz-executor 48125 168263 73138 0 3 0x4000080 fsleep syz-executor 70580 260679 1 0 3 0x82 nanoslp getty 13126 102583 0 0 3 0x14280 nfsidl nfsio 50474 347218 0 0 3 0x14280 nfsidl nfsio 40470 272392 0 0 3 0x14280 nfsidl nfsio 98258 479569 0 0 3 0x14280 nfsidl nfsio 90268 284084 0 0 3 0x14280 nfsidl nfsio 79812 132882 0 0 3 0x14280 nfsidl nfsio 7350 429849 0 0 3 0x14280 nfsidl nfsio 4094 377552 0 0 3 0x14280 nfsidl nfsio 11080 48921 0 0 3 0x14280 nfsidl nfsio 33086 290993 0 0 3 0x14280 nfsidl nfsio 44518 320224 0 0 3 0x14280 nfsidl nfsio 59371 518752 0 0 3 0x14280 nfsidl nfsio 19755 429963 0 0 3 0x14280 nfsidl nfsio 3038 475917 0 0 3 0x14280 nfsidl nfsio 31649 268902 0 0 3 0x14280 nfsidl nfsio 12656 411526 0 0 3 0x14280 nfsidl nfsio 60315 357510 0 0 3 0x14280 nfsidl nfsio 8194 26363 0 0 3 0x14280 nfsidl nfsio 1611 229506 0 0 3 0x14280 nfsidl nfsio 26540 404630 0 0 3 0x14280 nfsidl nfsio 73138 3823 68231 0 3 0x82 nanoslp syz-executor 3206 187347 68231 0 3 0x82 nanoslp syz-executor 34716 156270 68231 0 3 0x82 nanoslp syz-executor 71251 281855 68231 0 2 0x2 syz-executor 79509 92084 68231 0 3 0x82 nanoslp syz-executor 30268 402633 68231 0 3 0x82 nanoslp syz-executor 41668 283789 68231 0 3 0x82 nanoslp syz-executor 81885 136600 68231 0 3 0x82 nanoslp syz-executor 68231 337702 71378 0 3 0x82 kqread syz-executor 71378 393037 1 0 3 0x100082 nanoslp ksh 42265 314765 1 0 3 0x8a kqread sshd 90126 44430 46091 73 3 0x1100090 kqread syslogd 46091 155848 1 0 3 0x100082 sbwait syslogd 22929 337433 1 0 3 0x100080 kqread resolvd 80707 320237 92660 77 3 0x100092 kqread dhcpleased 30047 70311 92660 77 3 0x100092 kqread dhcpleased 92660 109750 1 0 3 0x80 kqread dhcpleased 8274 445279 0 0 3 0x14200 bored smr 85249 200406 0 0 2 0x14200 zerothread 31767 136375 0 0 3 0x14200 aiodoned aiodoned 83592 423462 0 0 3 0x14200 syncer update 51183 440965 0 0 3 0x14200 cleaner cleaner 49098 352725 0 0 3 0x14200 reaper reaper 54057 21694 0 0 3 0x14200 pgdaemon pagedaemon 60542 414062 0 0 3 0x14200 bored viomb 3049 16037 0 0 3 0x40014200 acpi0 acpi0 27175 372989 0 0 3 0x14200 bored softnet0 33204 114113 0 0 3 0x14200 bored systqmp 17938 393696 0 0 3 0x14200 bored systq 34688 295463 0 0 3 0x40014200 tmoslp softclock 80754 359880 0 0 3 0x40014200 idle0 1 148001 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11027 12098K 12119K 166960K 12126 0 pcb 17 12K 12K 166960K 27 0 rtable 252 8K 8K 166960K 378 0 pf 30 12K 16K 166960K 33 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 4 1K 9K 166960K 11 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 34 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1291 81K 81K 166960K 1372 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 356 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 100K 166960K 506 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 364 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 204 150K 166K 166960K 4600 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 34 68K 94K 166960K 1447 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 15 0K 2K 166960K 27 0 temp 36 9062K 9126K 166960K 4642 0 kqueue 11 16K 20K 166960K 24 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 47 0 42 1 0 1 1 0 8 0 rtentry 136 115 0 1 4 0 4 4 0 8 0 unpcb 144 37 0 25 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 17 0 14 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 91 0 85 2 1 1 2 0 8 0 nd6 112 27 0 0 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 466 0 0 30 0 30 30 0 8 0 art_table 40 468 0 0 5 0 5 5 0 8 0 art_node 32 115 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semapl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1791 0 331 92 0 92 92 0 8 0 ffsino 256 1791 0 331 92 0 92 92 0 8 0 nchpl 144 2210 0 522 63 0 63 63 0 8 0 vnodes 216 1886 0 0 105 0 105 105 0 8 0 namei 1024 6093 0 6092 2 1 1 2 0 8 0 kstatmem 264 23 0 0 2 0 2 2 0 8 0 scxspl 216 7138 0 7138 3 2 1 3 1 8 1 plimitpl 152 28 0 13 1 0 1 1 0 8 0 sigapl 424 668 0 608 8 0 8 8 0 8 0 knotepl 120 8967 0 8925 2 0 2 2 0 8 0 kqueuepl 184 25 0 18 1 0 1 1 0 8 0 pipepl 304 119 0 92 3 0 3 3 0 8 0 fdescpl 448 635 0 608 5 0 5 5 0 8 1 filepl 120 1740 0 1543 7 0 7 7 0 8 0 lockfpl 104 20 0 17 1 0 1 1 0 8 0 lockfspl 48 10 0 7 1 0 1 1 0 8 0 sessionpl 144 21 0 15 1 0 1 1 0 8 0 pgrppl 48 29 0 15 1 0 1 1 0 8 0 ucredpl 104 68 0 58 1 0 1 1 0 8 0 zombiepl 144 608 0 608 2 1 1 1 0 8 1 processpl 1152 668 0 608 5 0 5 5 0 8 0 procpl 664 894 0 827 6 0 6 6 0 8 0 sockpl 552 179 0 156 3 1 2 3 0 8 0 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl16k 16384 8 0 8 1 0 1 1 0 8 1 mcl12k 12288 16 0 16 2 1 1 1 0 8 1 mcl9k128 9344 13 0 13 1 0 1 1 0 8 1 mcl8k 8192 100 0 100 2 1 1 1 0 8 1 mcl4k 4096 2806 0 2753 15 7 8 14 0 8 0 mcl2k 2048 145 0 144 2 1 1 1 0 8 0 mtagpl 96 5 0 5 2 1 1 1 0 8 1 mbufpl 256 6004 0 5840 11 0 11 11 0 8 0 bufpl 280 2453 0 102 168 0 168 168 0 8 0 anonpl 24 100082 0 97549 21 3 18 21 0 187 0 amapchunkpl 152 13592 0 13163 18 1 17 17 0 158 0 amappl16 200 1388 0 1370 5 3 2 4 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 423 0 421 1 0 1 1 0 8 0 amappl13 176 111 0 103 1 0 1 1 0 8 0 amappl12 168 878 0 852 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 1 0 1 0 8 0 amappl10 152 55 0 45 1 0 1 1 0 8 0 amappl9 144 263 0 263 1 1 0 1 0 8 0 amappl8 136 100 0 99 1 0 1 1 0 8 0 amappl7 128 151 0 141 1 0 1 1 0 8 0 amappl6 120 169 0 168 1 0 1 1 0 8 0 amappl5 112 92 0 86 1 0 1 1 0 8 0 amappl4 104 267 0 252 1 0 1 1 0 8 0 amappl3 96 2725 0 2621 4 1 3 3 0 8 0 amappl2 88 503 0 462 2 0 2 2 0 8 0 amappl1 80 10178 0 9790 13 1 12 13 0 8 2 amappl 88 3902 0 3755 4 0 4 4 0 92 0 uvmvnodes 80 97 0 0 2 0 2 2 0 8 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 635 0 608 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 635 0 608 1 0 1 1 0 8 0 vmmpekpl 168 6506 0 6474 2 0 2 2 0 8 0 vmmpepl 168 46359 0 44898 81 5 76 77 0 357 10 vmsppl 368 634 0 608 4 0 4 4 0 8 1 rwobjpl 40 14973 0 14173 11 0 11 11 0 8 0 pdppl 4096 1276 0 1216 104 34 70 80 0 8 10 pvpl 32 262726 0 256162 68 5 63 66 0 265 2 pmappl 216 634 0 608 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 371 0 47 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb>