uvm_fault(0xffffffff838fd9a0, 0xffff80000149404a, 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 * 80286 67374 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c953810,0,ffff80003c953780,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000148fd00,ffff80003c9538b8,ffff80003c953810,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806db6ba00,ffff800010fdcad8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdcad8,fffffd806db6ba00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdcad8,0,ffff80003c953a68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc2b0,4,ffff80003c953b60,808,ffff80003c953c00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc2b0,ffff80003c953cb0,ffff80003c953c00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c953cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c953cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27c135d8ad0, 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(0xffffffff838fd9a0, 0xffff80000149404a, 0, 1) -> e ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c953810,0,ffff80003c953780,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000148fd00,ffff80003c9538b8,ffff80003c953810,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806db6ba00,ffff800010fdcad8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdcad8,fffffd806db6ba00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdcad8,0,ffff80003c953a68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc2b0,4,ffff80003c953b60,808,ffff80003c953c00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc2b0,ffff80003c953cb0,ffff80003c953c00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c953cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c953cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27c135d8ad0, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff80003c953660 rbx 0xde rdx 0 rcx 0xffff800001493f60 rax 0xfffffd806db6bee0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x5fff9dc3c25c099 r11 0xaa32fded509ea5f4 r12 0x1a r13 0xfffffd806db6be00 r14 0xfffffd806c60cc50 r15 0xffff80000019f058 rip 0xffffffff827d9104 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9535e0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=80286 pid=67374 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=52, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7bcd10,0xffffffff8388e660 process=0xffff8000ffff9b18 user=0xffff80003c94e000, vmspace=0xfffffd806cb222f0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67374 144948 42586 0 2 0 syz-executor *67374 80286 42586 0 7 0x4000000 syz-executor 624 118118 82922 0 2 0x100002 arp 83190 513132 86029 0 2 0 syz-executor 83190 59817 86029 0 3 0x4000080 fsleep syz-executor 83190 366973 86029 0 3 0x4000080 fsleep syz-executor 83190 329835 86029 0 3 0x4000080 fsleep syz-executor 58536 409082 68916 0 2 0 syz-executor 58536 110295 68916 0 3 0x4000080 fsleep syz-executor 298 245400 42805 0 2 0 syz-executor 298 423083 42805 0 3 0x4000080 fifor syz-executor 61596 193045 43914 0 2 0 syz-executor 61596 45982 43914 0 3 0x4000080 fsleep syz-executor 99525 418689 99686 0 2 0 syz-executor 99525 504183 99686 0 3 0x4000080 fsleep syz-executor 98693 327885 53812 0 2 0x100002 sh 82922 379419 74685 0 3 0x10008a sigsusp sh 42586 183799 72439 0 3 0x82 nanoslp syz-executor 42805 284521 72439 0 2 0xc82 syz-executor 43914 228161 72439 0 2 0xc82 syz-executor 86029 353247 72439 0 2 0xc82 syz-executor 99686 487311 72439 0 2 0xc82 syz-executor 68916 41164 72439 0 2 0xc82 syz-executor 74685 22574 72439 0 3 0x82 wait syz-executor 53812 197518 72439 0 3 0x82 wait syz-executor 72439 303933 3859 0 3 0x82 kqread syz-executor 3859 440457 9021 0 3 0x10008a sigsusp ksh 9021 313893 31925 0 3 0x98 kqread sshd-session 31925 479485 96797 0 3 0x92 kqread sshd-session 82125 195539 1 0 3 0x100083 ttyin getty 96797 330618 1 0 3 0x88 kqread sshd 3619 280171 37654 73 3 0x1100090 kqread syslogd 37654 499021 1 0 3 0x100082 sbwait syslogd 40894 231882 1 0 3 0x100080 kqread resolvd 11709 521345 63858 77 3 0x100092 kqread dhcpleased 14031 315468 63858 77 3 0x100092 kqread dhcpleased 63858 164185 1 0 3 0x80 kqread dhcpleased 45468 440045 0 0 3 0x14200 bored smr 78409 191122 0 0 2 0x14200 zerothread 89947 208844 0 0 3 0x14200 aiodoned aiodoned 39153 134316 0 0 3 0x14200 syncer update 79239 281901 0 0 3 0x14200 cleaner cleaner 93093 358672 0 0 3 0x14200 reaper reaper 66913 69196 0 0 3 0x14200 pgdaemon pagedaemon 20949 59604 0 0 3 0x14200 bored viomb 32389 465453 0 0 3 0x40014200 acpi0 acpi0 10462 100623 0 0 3 0x14200 bored softnet0 40990 496115 0 0 3 0x14200 smrbar systqmp 57572 398174 0 0 3 0x14200 bored systq 76853 42549 0 0 3 0x40014200 tmoslp softclock 30853 247117 0 0 3 0x40014200 idle0 1 412150 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 10170 11045K 11058K 166960K 11255 0 pcb 18 12K 12K 166960K 21 0 rtable 212 7K 7K 166960K 356 0 pf 32 13K 13K 166960K 32 0 ifaddr 38 6K 6K 166960K 43 0 ifgroup 54 2K 2K 166960K 54 0 sysctl 1 1K 9K 166960K 5 0 counters 34 17K 17K 166960K 34 0 ioctlops 0 0K 2K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 84K 166960K 1359 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 93K 166960K 136 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 78 5K 5K 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 31 148K 148K 166960K 31 0 exec 0 0K 1K 166960K 351 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 226 161K 166K 166960K 2871 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 41 82K 93K 166960K 1192 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 24 1K 1K 166960K 26 0 temp 34 8658K 8722K 166960K 3707 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 36 0 30 1 0 1 1 0 8 0 rtentry 136 103 0 12 4 0 4 4 0 8 0 unpcb 144 34 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 4 1 0 1 1 0 8 0 arp 96 17 0 2 1 0 1 1 0 8 0 inpcb 328 60 0 52 2 0 2 2 0 8 1 nd6 112 20 0 3 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 256 411 0 0 26 0 26 26 0 8 0 art_table 40 413 0 0 5 0 5 5 0 8 0 art_node 32 103 0 8 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1561 0 56 95 0 95 95 0 8 0 ffsino 256 1561 0 56 95 0 95 95 0 8 0 nchpl 144 1757 0 66 63 0 63 63 0 8 0 vnodes 216 1644 0 0 92 0 92 92 0 8 0 namei 1024 5000 0 5000 2 0 2 2 0 8 2 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 5680 0 5680 3 0 3 3 1 8 3 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 422 0 378 6 0 6 6 0 8 1 knotepl 120 2712 0 2665 2 0 2 2 0 8 0 kqueuepl 184 19 0 10 1 0 1 1 0 8 0 pipepl 304 112 0 85 3 0 3 3 0 8 0 fdescpl 448 409 0 378 5 0 5 5 0 8 0 filepl 120 1360 0 1147 7 0 7 7 0 8 0 lockfpl 104 13 0 10 1 0 1 1 0 8 0 lockfspl 48 8 0 5 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 66 0 55 1 0 1 1 0 8 0 zombiepl 144 378 0 378 1 0 1 1 0 8 1 processpl 1152 422 0 378 4 0 4 4 0 8 0 procpl 664 435 0 383 5 0 5 5 0 8 0 sockpl 552 130 0 98 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2461 0 2410 15 0 15 15 0 8 8 mcl2k 2048 193 0 191 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4000 0 3878 8 0 8 8 0 8 0 bufpl 280 2243 0 120 152 0 152 152 0 8 0 anonpl 24 90693 0 87636 22 0 22 22 0 187 3 amapchunkpl 152 8016 0 7570 18 0 18 18 0 158 0 amappl16 200 1560 0 1546 5 0 5 5 0 8 4 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 7 0 7 1 0 1 1 0 8 1 amappl13 176 399 0 396 1 0 1 1 0 8 0 amappl12 168 744 0 704 2 0 2 2 0 8 0 amappl11 160 47 0 47 1 0 1 1 0 8 1 amappl10 152 41 0 31 1 0 1 1 0 8 0 amappl9 144 277 0 277 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 256 0 241 1 0 1 1 0 8 0 amappl5 112 86 0 79 1 0 1 1 0 8 0 amappl4 104 361 0 336 1 0 1 1 0 8 0 amappl3 96 1282 0 1183 3 0 3 3 0 8 0 amappl2 88 505 0 451 2 0 2 2 0 8 0 amappl1 80 8743 0 8171 12 0 12 12 0 8 0 amappl 88 2195 0 2044 4 0 4 4 0 92 0 uvmvnodes 80 96 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 24 409 0 378 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 409 0 378 1 0 1 1 0 8 0 vmmpekpl 168 5012 0 4988 2 0 2 2 0 8 0 vmmpepl 168 34139 0 32355 78 0 78 78 0 357 0 vmsppl 368 408 0 378 4 0 4 4 0 8 0 rwobjpl 40 12552 0 11595 10 0 10 10 0 8 0 pdppl 4096 824 0 756 94 14 80 80 0 8 12 pvpl 32 204598 0 196227 69 0 69 69 0 265 1 pmappl 216 408 0 378 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 356 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c953810,0,ffff80003c953780,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000148fd00,ffff80003c9538b8,ffff80003c953810,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806db6ba00,ffff800010fdcad8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdcad8,fffffd806db6ba00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdcad8,0,ffff80003c953a68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc2b0,4,ffff80003c953b60,808,ffff80003c953c00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc2b0,ffff80003c953cb0,ffff80003c953c00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c953cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c953cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27c135d8ad0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806c60cc50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c953810,0,ffff80003c953780,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000148fd00,ffff80003c9538b8,ffff80003c953810,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806db6ba00,ffff800010fdcad8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdcad8,fffffd806db6ba00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdcad8,0,ffff80003c953a68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7bc2b0,4,ffff80003c953b60,808,ffff80003c953c00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7bc2b0,ffff80003c953cb0,ffff80003c953c00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c953cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c953cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27c135d8ad0, count: -10