uvm_fault(0xffffffff83976f00, 0xffff8000015d40aa, 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 *508508 8799 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c934d80,0,ffff80003c934cf0,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff8000015a1000,ffff80003c934e28,ffff80003c934d80,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ef72000,ffff800001590f28) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001590f28,fffffd806ef72000,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001590f28,0,ffff80003c934fd8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c93ad18,3,ffff80003c9350d0,808,ffff80003c935170) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c93ad18,ffff80003c935220,ffff80003c935170) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c935220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c935220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x618befc5530, 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(0xffffffff83976f00, 0xffff8000015d40aa, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c934d80,0,ffff80003c934cf0,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff8000015a1000,ffff80003c934e28,ffff80003c934d80,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ef72000,ffff800001590f28) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001590f28,fffffd806ef72000,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001590f28,0,ffff80003c934fd8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c93ad18,3,ffff80003c9350d0,808,ffff80003c935170) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c93ad18,ffff80003c935220,ffff80003c935170) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c935220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c935220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x618befc5530, count: -10 ddb> show registers rdi 0xffff80003a510000 rsi 0x97b rbp 0xffff80003c934bd0 rbx 0xde rdx 0xffff80003a510000 rcx 0xffff8000015d3fc0 rax 0xfffffd806ef729e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x8302550b26016248 r11 0x9a7331724fa400d5 r12 0x1b r13 0xfffffd806ef72900 r14 0xfffffd807e7f4920 r15 0xffff8000002a2058 rip 0xffffffff81d5c0b4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c934b50 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=508508 pid=8799 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=60, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c93bca8,0xffff80003c93b4f0 process=0xffff8000ffff8d98 user=0xffff80003c930000, vmspace=0xfffffd806c95c8b0 estcpu=10, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 93786 78632 21504 0 2 0 syz-executor 93786 492556 21504 0 3 0x4000080 fsleep syz-executor 8799 58822 75871 0 2 0 syz-executor * 8799 508508 75871 0 7 0x4000000 syz-executor 68055 448731 89873 0 2 0 syz-executor 68055 380798 89873 0 3 0x4000080 ttyout syz-executor 5284 439860 18570 0 2 0 syz-executor 5284 259964 18570 0 3 0x4000080 ttyretype syz-executor 5284 171834 18570 0 3 0x4000080 ttyout syz-executor 3809 231408 19761 60929 3 0x90 nanoslp syz-executor 3809 359622 19761 60929 3 0x4000090 ttyretype syz-executor 3809 269834 19761 60929 3 0x4000090 fsleep syz-executor 45921 367726 12092 0 3 0x80 nanoslp syz-executor 45921 270681 12092 0 3 0x4000080 kqsel syz-executor 9617 166313 87888 0 2 0 syz-executor 9617 441357 87888 0 3 0x4000080 fsleep syz-executor 8258 138622 89410 0 2 0 syz-executor 8258 486157 89410 0 3 0x4000080 kqsel syz-executor 8258 200652 89410 0 3 0x4000080 kqread syz-executor 8258 54580 89410 0 3 0x4000080 fsleep syz-executor 18570 268308 62580 0 3 0x82 nanoslp syz-executor 75871 393241 62580 0 3 0x82 nanoslp syz-executor 87888 351290 62580 0 3 0x82 nanoslp syz-executor 21504 151881 62580 0 3 0x82 nanoslp syz-executor 12092 349989 62580 0 3 0x82 nanoslp syz-executor 89410 177344 62580 0 3 0x82 nanoslp syz-executor 89873 188661 62580 0 3 0x82 nanoslp syz-executor 19761 250996 62580 0 3 0x82 nanoslp syz-executor 62580 116209 50796 0 3 0x82 kqread syz-executor 50796 20870 15769 0 3 0x10008a sigsusp ksh 15769 32982 44870 0 3 0x98 kqread sshd-session 44870 211217 16345 0 3 0x92 kqread sshd-session 37666 92006 1 0 3 0x100083 ttyin getty 16345 99830 1 0 3 0x88 kqread sshd 67426 80550 66648 73 3 0x1100090 kqread syslogd 66648 257050 1 0 3 0x100082 sbwait syslogd 48732 35415 1 0 3 0x100080 kqread resolvd 62901 51422 66122 77 3 0x100092 kqread dhcpleased 48398 262440 66122 77 3 0x100092 kqread dhcpleased 66122 139260 1 0 3 0x80 kqread dhcpleased 66836 4082 0 0 3 0x14200 bored smr 81590 423061 0 0 2 0x14200 zerothread 10443 315357 0 0 3 0x14200 aiodoned aiodoned 6506 104998 0 0 3 0x14200 syncer update 25507 411620 0 0 3 0x14200 cleaner cleaner 87459 336467 0 0 3 0x14200 reaper reaper 58245 377214 0 0 3 0x14200 pgdaemon pagedaemon 64023 490014 0 0 3 0x14200 bored viomb 42995 166798 0 0 3 0x40014200 acpi0 acpi0 31835 159249 0 0 3 0x14200 bored softnet0 88560 481219 0 0 3 0x14200 smrbar systqmp 77249 265861 0 0 3 0x14200 bored systq 54842 271298 0 0 3 0x40014200 tmoslp softclock 96941 217432 0 0 3 0x40014200 idle0 1 350428 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 11052 12362K 12491K 166960K 12149 0 pcb 17 12K 12K 166960K 17 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 4K 166960K 35 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1371 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 147 0 proc 58 59K 116K 166960K 472 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 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 360 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 234 151K 158K 166960K 3229 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 94K 166960K 1225 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 27 2K 2K 166960K 27 0 temp 36 8658K 8722K 166960K 3849 0 kqueue 14 22K 22K 166960K 23 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 40 0 36 1 0 1 1 0 8 0 rtentry 136 112 0 1 4 0 4 4 0 8 0 unpcb 144 42 0 24 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 18 0 0 1 0 1 1 0 8 0 inpcb 328 60 0 52 2 0 2 2 0 8 1 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 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1572 0 66 95 0 95 95 0 8 0 ffsino 256 1572 0 66 95 0 95 95 0 8 0 nchpl 144 1776 0 80 63 0 63 63 0 8 0 vnodes 216 1665 0 0 93 0 93 93 0 8 0 namei 1024 5155 0 5155 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5718 0 5718 2 0 2 2 1 8 2 plimitpl 152 32 0 13 1 0 1 1 0 8 0 sigapl 424 436 0 393 6 0 6 6 0 8 0 knotepl 120 3311 0 3263 2 0 2 2 0 8 0 kqueuepl 184 22 0 10 1 0 1 1 0 8 0 pipepl 304 115 0 86 3 0 3 3 0 8 0 fdescpl 448 423 0 393 5 0 5 5 0 8 1 filepl 120 1443 0 1214 8 0 8 8 0 8 1 lockfpl 104 8 0 6 1 0 1 1 0 8 0 lockfspl 48 5 0 3 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 97 0 85 1 0 1 1 0 8 0 zombiepl 144 393 0 393 1 0 1 1 0 8 1 processpl 1152 436 0 393 4 0 4 4 0 8 0 procpl 664 459 0 404 5 0 5 5 0 8 0 sockpl 552 142 0 112 3 0 3 3 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2448 0 2396 13 0 13 13 0 8 5 mcl2k 2048 190 0 189 2 0 2 2 0 8 1 mtagpl 96 7 0 4 1 0 1 1 0 8 0 mbufpl 256 4044 0 3910 10 0 10 10 0 8 1 bufpl 280 2257 0 118 153 0 153 153 0 8 0 anonpl 24 106688 0 103596 31 0 31 31 0 187 11 amapchunkpl 152 8951 0 8457 22 0 22 22 0 158 2 amappl16 200 2152 0 2134 5 0 5 5 0 8 4 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 3 0 3 1 0 1 1 0 8 1 amappl13 176 439 0 438 1 0 1 1 0 8 0 amappl12 168 761 0 722 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 47 0 37 1 0 1 1 0 8 0 amappl9 144 258 0 258 1 0 1 1 0 8 1 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 83 0 82 1 0 1 1 0 8 0 amappl6 120 263 0 252 1 0 1 1 0 8 0 amappl5 112 74 0 67 1 0 1 1 0 8 0 amappl4 104 382 0 357 1 0 1 1 0 8 0 amappl3 96 1327 0 1219 3 0 3 3 0 8 0 amappl2 88 505 0 453 2 0 2 2 0 8 0 amappl1 80 8847 0 8311 13 0 13 13 0 8 1 amappl 88 2536 0 2370 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 24 423 0 393 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 423 0 393 1 0 1 1 0 8 0 vmmpekpl 168 5145 0 5110 2 0 2 2 0 8 0 vmmpepl 168 35509 0 33715 79 0 79 79 0 357 1 vmsppl 368 422 0 393 4 0 4 4 0 8 1 rwobjpl 40 13373 0 12458 11 0 11 11 0 8 1 pdppl 4096 852 0 786 94 14 80 80 0 8 14 pvpl 32 225409 0 216810 90 0 90 90 0 265 20 pmappl 216 422 0 393 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c934d80,0,ffff80003c934cf0,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff8000015a1000,ffff80003c934e28,ffff80003c934d80,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ef72000,ffff800001590f28) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001590f28,fffffd806ef72000,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001590f28,0,ffff80003c934fd8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c93ad18,3,ffff80003c9350d0,808,ffff80003c935170) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c93ad18,ffff80003c935220,ffff80003c935170) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c935220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c935220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x618befc5530, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807e7f4920) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c934d80,0,ffff80003c934cf0,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff8000015a1000,ffff80003c934e28,ffff80003c934d80,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ef72000,ffff800001590f28) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001590f28,fffffd806ef72000,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001590f28,0,ffff80003c934fd8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c93ad18,3,ffff80003c9350d0,808,ffff80003c935170) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c93ad18,ffff80003c935220,ffff80003c935170) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c935220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c935220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x618befc5530, count: -10