uvm_fault(0xffffffff8389efb0, 0xffff8000014930aa, 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 *151749 28430 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a523840,0,ffff80003a5237b0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001490f00,ffff80003a5238e8,ffff80003a523840,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806cb5c300,ffff80000140fc08) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000140fc08,fffffd806cb5c300,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000140fc08,0,ffff80003a523a98,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc018,3,ffff80003a523b90,808,ffff80003a523c30) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc018,ffff80003a523ce0,ffff80003a523c30) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a523ce0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a523ce0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d1c8cc9fc0, 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(0xffffffff8389efb0, 0xffff8000014930aa, 0, 1) -> e ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a523840,0,ffff80003a5237b0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001490f00,ffff80003a5238e8,ffff80003a523840,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806cb5c300,ffff80000140fc08) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000140fc08,fffffd806cb5c300,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000140fc08,0,ffff80003a523a98,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc018,3,ffff80003a523b90,808,ffff80003a523c30) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc018,ffff80003a523ce0,ffff80003a523c30) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a523ce0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a523ce0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d1c8cc9fc0, count: -10 ddb> show registers rdi 0xffff800031900000 rsi 0x946 rbp 0xffff80003a523690 rbx 0xde rdx 0xffff800031900000 rcx 0xffff800001492fc0 rax 0xfffffd806cb5c7e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x9478af0edff3cd66 r11 0xd7c25edbdaead499 r12 0x17 r13 0xfffffd806cb5c700 r14 0xfffffd806cabf2c0 r15 0xffff80000019f058 rip 0xffffffff8163bd54 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a523610 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=151749 pid=28430 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=0xffff80002a7bd770,0xffff80002a7bc2c0 process=0xffff8000318fcd98 user=0xffff80003a51e000, vmspace=0xfffffd806cb895d0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 38117 483881 17652 0 2 0 syz-executor 28430 426350 66818 0 2 0 syz-executor *28430 151749 66818 0 7 0x4000000 syz-executor 5822 192222 67070 0 2 0x100000 sh 77723 170692 97406 0 2 0 syz-executor 77723 228213 97406 0 3 0x4000080 fsleep syz-executor 43624 171125 18390 0 2 0 syz-executor 43624 90007 18390 0 3 0x4000080 fsleep syz-executor 67070 344254 68074 0 3 0x10008a sigsusp sh 59182 335233 37426 0 2 0 syz-executor 59182 127238 37426 0 2 0x4000000 syz-executor 79146 198063 246 0 2 0 syz-executor 79146 348238 246 0 3 0x4000080 fsleep syz-executor 92319 162099 77535 0 2 0 syz-executor 92319 469064 77535 0 3 0x4000080 fsleep syz-executor 68074 138534 85417 0 3 0x82 wait syz-executor 77535 120680 85417 0 3 0x82 nanoslp syz-executor 17652 264646 85417 0 3 0x82 nanoslp syz-executor 66818 502414 85417 0 2 0xc82 syz-executor 18390 310431 85417 0 2 0xc82 syz-executor 37426 389121 85417 0 2 0xc82 syz-executor 246 166846 85417 0 2 0xc82 syz-executor 97406 29091 85417 0 3 0x82 nanoslp syz-executor 85417 444145 99347 0 3 0x82 kqread syz-executor 99347 207804 24870 0 3 0x10008a sigsusp ksh 24870 338978 46453 0 3 0x98 kqread sshd-session 46453 294715 88418 0 3 0x92 kqread sshd-session 26752 293970 1 0 3 0x100083 ttyin getty 88418 277254 1 0 3 0x88 kqread sshd 91460 356287 29065 73 3 0x1100090 kqread syslogd 29065 23606 1 0 3 0x100082 sbwait syslogd 60878 427601 1 0 3 0x100080 kqread resolvd 85901 39113 23059 77 3 0x100092 kqread dhcpleased 3456 302630 23059 77 3 0x100092 kqread dhcpleased 23059 477085 1 0 3 0x80 kqread dhcpleased 38120 159175 0 0 3 0x14200 bored smr 11785 58416 0 0 2 0x14200 zerothread 10172 92467 0 0 3 0x14200 aiodoned aiodoned 39271 238737 0 0 3 0x14200 syncer update 25596 154290 0 0 3 0x14200 cleaner cleaner 66621 338900 0 0 3 0x14200 reaper reaper 60117 57024 0 0 3 0x14200 pgdaemon pagedaemon 182 466426 0 0 3 0x14200 bored viomb 77400 336947 0 0 3 0x40014200 acpi0 acpi0 85605 93340 0 0 3 0x14200 bored softnet0 51972 17504 0 0 3 0x14200 smrbar systqmp 62597 350885 0 0 3 0x14200 bored systq 10616 424267 0 0 3 0x40014200 tmoslp softclock 40898 465378 0 0 3 0x40014200 idle0 1 440339 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 10162 11041K 11058K 166960K 11246 0 pcb 17 12K 12K 166960K 17 0 rtable 232 7K 7K 166960K 354 0 pf 30 12K 12K 166960K 30 0 ifaddr 40 7K 7K 166960K 42 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 9K 166960K 6 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 28 0 iov 0 0K 0K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1355 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 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 89K 166960K 140 0 proc 57 58K 100K 166960K 464 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 89 6K 6K 166960K 89 0 ether_multi 1 0K 0K 166960K 1 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 356 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 217 151K 158K 166960K 2992 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 40 80K 93K 166960K 1211 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 25 1K 1K 166960K 25 0 temp 34 8658K 8722K 166960K 3756 0 kqueue 13 20K 20K 166960K 22 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 37 0 33 1 0 1 1 0 8 0 rtentry 136 105 0 1 4 0 4 4 0 8 0 unpcb 144 31 0 16 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 7 0 3 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 56 0 49 2 0 2 2 0 8 1 nd6 112 21 0 0 1 0 1 1 0 8 0 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 256 412 0 0 26 0 26 26 0 8 0 art_table 40 414 0 0 5 0 5 5 0 8 0 art_node 32 105 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1555 0 51 95 0 95 95 0 8 0 ffsino 256 1555 0 51 95 0 95 95 0 8 0 nchpl 144 1746 0 60 63 0 63 63 0 8 0 vnodes 216 1636 0 0 91 0 91 91 0 8 0 namei 1024 5006 0 5006 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5566 0 5566 2 0 2 2 1 8 2 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 429 0 385 6 0 6 6 0 8 0 knotepl 120 2742 0 2695 2 0 2 2 0 8 0 kqueuepl 184 18 0 9 1 0 1 1 0 8 0 pipepl 304 113 0 86 3 0 3 3 0 8 0 fdescpl 448 416 0 385 5 0 5 5 0 8 1 filepl 120 1350 0 1146 7 0 7 7 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 63 0 52 1 0 1 1 0 8 0 zombiepl 144 385 0 385 1 0 1 1 0 8 1 processpl 1152 429 0 385 4 0 4 4 0 8 0 procpl 664 440 0 390 5 0 5 5 0 8 0 sockpl 552 124 0 98 3 0 3 3 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 2330 0 2276 13 0 13 13 0 8 5 mcl2k 2048 179 0 177 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3820 0 3693 9 0 9 9 0 8 0 bufpl 280 2245 0 119 152 0 152 152 0 8 0 anonpl 24 88632 0 85860 22 0 22 22 0 187 4 amapchunkpl 152 8126 0 7692 17 0 17 17 0 158 0 amappl16 200 1468 0 1454 5 0 5 5 0 8 4 amappl15 192 19 0 19 1 0 1 1 0 8 1 amappl14 184 4 0 4 1 0 1 1 0 8 1 amappl13 176 408 0 405 1 0 1 1 0 8 0 amappl12 168 754 0 714 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 42 0 32 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 0 1 1 0 8 1 amappl8 136 29 0 28 1 0 1 1 0 8 0 amappl7 128 92 0 91 1 0 1 1 0 8 0 amappl6 120 262 0 250 1 0 1 1 0 8 0 amappl5 112 77 0 69 1 0 1 1 0 8 0 amappl4 104 372 0 349 1 0 1 1 0 8 0 amappl3 96 1259 0 1176 3 0 3 3 0 8 0 amappl2 88 517 0 451 2 0 2 2 0 8 0 amappl1 80 8758 0 8211 13 0 13 13 0 8 0 amappl 88 2302 0 2154 4 0 4 4 0 92 0 uvmvnodes 80 95 0 0 2 0 2 2 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 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 24 416 0 385 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 416 0 385 1 0 1 1 0 8 0 vmmpekpl 168 5045 0 5024 2 0 2 2 0 8 0 vmmpepl 168 34364 0 32594 78 0 78 78 0 357 1 vmsppl 368 415 0 385 4 0 4 4 0 8 1 rwobjpl 40 12602 0 11695 10 0 10 10 0 8 0 pdppl 4096 838 0 770 92 14 78 78 0 8 10 pvpl 32 202648 0 194867 63 0 63 63 0 265 0 pmappl 216 415 0 385 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 353 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a523840,0,ffff80003a5237b0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001490f00,ffff80003a5238e8,ffff80003a523840,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806cb5c300,ffff80000140fc08) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000140fc08,fffffd806cb5c300,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000140fc08,0,ffff80003a523a98,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc018,3,ffff80003a523b90,808,ffff80003a523c30) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc018,ffff80003a523ce0,ffff80003a523c30) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a523ce0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a523ce0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d1c8cc9fc0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806cabf2c0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a523840,0,ffff80003a5237b0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001490f00,ffff80003a5238e8,ffff80003a523840,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806cb5c300,ffff80000140fc08) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000140fc08,fffffd806cb5c300,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000140fc08,0,ffff80003a523a98,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc018,3,ffff80003a523b90,808,ffff80003a523c30) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc018,ffff80003a523ce0,ffff80003a523c30) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a523ce0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a523ce0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d1c8cc9fc0, count: -10