uvm_fault(0xffffffff83a75668, 0xffff80000160306a, 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 *461692 88185 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8fd120,0,ffff80003c8fd090,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001600900,ffff80003c8fd1c8,ffff80003c8fd120,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806f988700,ffff8000015f8d00) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015f8d00,fffffd806f988700,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f8d00,0,ffff80003c8fd378,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90b778,5,ffff80003c8fd470,808,ffff80003c8fd510) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90b778,ffff80003c8fd5c0,ffff80003c8fd510) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8fd5c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8fd5c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x854aca0b1f0, 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(0xffffffff83a75668, 0xffff80000160306a, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8fd120,0,ffff80003c8fd090,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001600900,ffff80003c8fd1c8,ffff80003c8fd120,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806f988700,ffff8000015f8d00) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015f8d00,fffffd806f988700,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f8d00,0,ffff80003c8fd378,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90b778,5,ffff80003c8fd470,808,ffff80003c8fd510) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90b778,ffff80003c8fd5c0,ffff80003c8fd510) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8fd5c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8fd5c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x854aca0b1f0, count: -10 ddb> show registers rdi 0xffff80002f0c2000 rsi 0x948 rbp 0xffff80003c8fcf70 rbx 0xde rdx 0xffff80002f0c2000 rcx 0xffff800001602f80 rax 0xfffffd806f9881e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x54c716ec65b4765b r11 0x84f25736c15c56ce r12 0x18 r13 0xfffffd806f988100 r14 0xfffffd806cb04810 r15 0xffff8000002a2058 rip 0xffffffff821964e4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c8fcef0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=461692 pid=88185 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=51, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a747230,0xffff80003c90aa90 process=0xffff8000ffffa898 user=0xffff80003c8f8000, vmspace=0xfffffd807ba29b88 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81184 242051 72261 0 2 0 syz-executor 81184 451383 72261 0 3 0x4000080 fsleep syz-executor 56594 253919 45134 0 2 0 syz-executor 56594 300097 45134 0 3 0x4000080 fsleep syz-executor 64300 244930 20845 0 2 0 syz-executor 64300 367535 20845 0 2 0x4000000 syz-executor 64300 428600 20845 0 2 0x4000000 syz-executor 64300 365807 20845 0 2 0x4000000 syz-executor 63266 436575 95500 0 2 0 syz-executor 63266 62571 95500 0 3 0x4000080 fsleep syz-executor 16901 36920 97599 0 2 0 syz-executor 16901 12098 97599 0 3 0x4000080 fsleep syz-executor 88185 463222 88072 0 2 0 syz-executor *88185 461692 88072 0 7 0x4000000 syz-executor 67129 387169 34898 0 2 0x10 syz-executor 67129 189869 34898 0 3 0x4000090 fsleep syz-executor 22600 396780 18154 0 2 0 syz-executor 22600 132446 18154 0 3 0x4000080 fsleep syz-executor 72261 131762 94445 0 3 0x82 nanoslp syz-executor 20845 307623 94445 0 3 0x82 nanoslp syz-executor 95500 471502 94445 0 3 0x82 nanoslp syz-executor 97599 80965 94445 0 3 0x82 nanoslp syz-executor 45134 355179 94445 0 3 0x82 nanoslp syz-executor 88072 442403 94445 0 3 0x82 nanoslp syz-executor 34898 261977 94445 0 3 0x82 nanoslp syz-executor 18154 266819 94445 0 3 0x82 nanoslp syz-executor 94445 451279 98692 0 3 0x82 kqread syz-executor 98692 103031 44405 0 3 0x10008a sigsusp ksh 44405 193179 61905 0 3 0x98 kqread sshd-session 61905 383117 26065 0 3 0x92 kqread sshd-session 19460 407586 1 0 3 0x100083 ttyin getty 26065 470896 1 0 3 0x88 kqread sshd 38720 418584 6878 73 3 0x1100090 kqread syslogd 6878 412011 1 0 3 0x100082 sbwait syslogd 85388 405201 1 0 3 0x100080 kqread resolvd 45096 372085 90917 77 3 0x100092 kqread dhcpleased 47263 169067 90917 77 3 0x100092 kqread dhcpleased 90917 381918 1 0 3 0x80 kqread dhcpleased 82454 487457 0 0 3 0x14200 bored smr 44521 237688 0 0 2 0x14200 zerothread 32588 20774 0 0 3 0x14200 aiodoned aiodoned 52274 165157 0 0 3 0x14200 syncer update 73739 169319 0 0 3 0x14200 cleaner cleaner 91714 342173 0 0 3 0x14200 reaper reaper 93662 159371 0 0 3 0x14200 pgdaemon pagedaemon 93558 461075 0 0 3 0x14200 bored viomb 51820 516456 0 0 3 0x40014200 acpi0 acpi0 20868 218442 0 0 3 0x14200 bored softnet0 51215 502978 0 0 3 0x14200 smrbar systqmp 30274 440522 0 0 3 0x14200 bored systq 82486 218256 0 0 3 0x40014200 tmoslp softclock 17844 342753 0 0 3 0x40014200 idle0 1 422235 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 12102K 12119K 166960K 12111 0 pcb 18 12K 12K 166960K 22 0 rtable 246 8K 8K 166960K 372 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 2K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1289 81K 81K 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 18 65K 93K 166960K 139 0 proc 58 59K 91K 166960K 496 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 99 7K 7K 166960K 99 0 ether_multi 2 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 2 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 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 216 150K 159K 166960K 2959 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 94K 166960K 1230 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 27 0 temp 34 9066K 9130K 166960K 3772 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 39 0 34 1 0 1 1 0 8 0 rtentry 136 112 0 1 4 0 4 4 0 8 0 unpcb 144 33 0 16 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 8 0 3 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 62 0 53 1 0 1 1 0 8 0 nd6 112 24 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 256 452 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 112 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1557 0 95 92 0 92 92 0 8 0 ffsino 256 1557 0 95 92 0 92 92 0 8 0 nchpl 144 1751 0 53 63 0 63 63 0 8 0 vnodes 216 1640 0 0 92 0 92 92 0 8 0 namei 1024 5085 0 5085 1 0 1 1 0 8 1 kstatmem 264 23 0 0 2 0 2 2 0 8 0 scxspl 216 5780 0 5780 4 0 4 4 1 8 4 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 432 0 389 6 0 6 6 0 8 1 knotepl 120 2216 0 2169 2 0 2 2 0 8 0 kqueuepl 184 18 0 9 1 0 1 1 0 8 0 pipepl 304 119 0 92 3 0 3 3 0 8 0 fdescpl 448 419 0 389 5 0 5 5 0 8 1 filepl 120 1395 0 1182 7 0 7 7 0 8 0 lockfpl 104 9 0 5 1 0 1 1 0 8 0 lockfspl 48 6 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 65 0 53 1 0 1 1 0 8 0 zombiepl 144 389 0 389 1 0 1 1 0 8 1 processpl 1152 432 0 389 4 0 4 4 0 8 0 procpl 664 443 0 390 5 0 5 5 0 8 0 sockpl 552 134 0 103 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2488 0 2436 14 0 14 14 0 8 5 mcl2k 2048 107 0 107 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4064 0 3920 10 0 10 10 0 8 0 bufpl 280 2220 0 102 152 0 152 152 0 8 0 anonpl 24 93749 0 90754 22 0 22 22 0 187 3 amapchunkpl 152 8118 0 7663 18 0 18 18 0 158 0 amappl16 200 1666 0 1651 5 0 5 5 0 8 4 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 408 0 407 1 0 1 1 0 8 0 amappl13 176 116 0 106 1 0 1 1 0 8 0 amappl12 168 673 0 644 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 0 1 1 0 8 1 amappl10 152 58 0 48 1 0 1 1 0 8 0 amappl9 144 281 0 281 1 0 1 1 0 8 1 amappl8 136 105 0 103 1 0 1 1 0 8 0 amappl7 128 144 0 133 1 0 1 1 0 8 0 amappl6 120 177 0 176 1 0 1 1 0 8 0 amappl5 112 91 0 84 1 0 1 1 0 8 0 amappl4 104 257 0 241 1 0 1 1 0 8 0 amappl3 96 1391 0 1286 3 0 3 3 0 8 0 amappl2 88 498 0 448 2 0 2 2 0 8 0 amappl1 80 9031 0 8482 13 0 13 13 0 8 1 amappl 88 2278 0 2124 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 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 24 419 0 389 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 419 0 389 1 0 1 1 0 8 0 vmmpekpl 168 5052 0 5029 2 0 2 2 0 8 0 vmmpepl 168 34876 0 33110 78 0 78 78 0 357 1 vmsppl 368 418 0 389 4 0 4 4 0 8 1 rwobjpl 40 13164 0 12261 11 0 11 11 0 8 0 pdppl 4096 844 0 778 94 14 80 80 0 8 14 pvpl 32 209684 0 201501 66 0 66 66 0 265 0 pmappl 216 418 0 389 3 0 3 3 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(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8fd120,0,ffff80003c8fd090,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001600900,ffff80003c8fd1c8,ffff80003c8fd120,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806f988700,ffff8000015f8d00) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015f8d00,fffffd806f988700,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f8d00,0,ffff80003c8fd378,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90b778,5,ffff80003c8fd470,808,ffff80003c8fd510) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90b778,ffff80003c8fd5c0,ffff80003c8fd510) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8fd5c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8fd5c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x854aca0b1f0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806cb04810) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8fd120,0,ffff80003c8fd090,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001600900,ffff80003c8fd1c8,ffff80003c8fd120,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806f988700,ffff8000015f8d00) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015f8d00,fffffd806f988700,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f8d00,0,ffff80003c8fd378,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90b778,5,ffff80003c8fd470,808,ffff80003c8fd510) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90b778,ffff80003c8fd5c0,ffff80003c8fd510) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8fd5c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8fd5c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x854aca0b1f0, count: -10