uvm_fault(0xffffffff8389dfe8, 0xffff8000014c506a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *272588 51076 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a964dd0,0,ffff80003a964d40,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001494c00,ffff80003a964e78,ffff80003a964dd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd8061dfbe00,ffff800010fdb7c8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdb7c8,fffffd8061dfbe00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdb7c8,0,ffff80003a965028,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81e018,3,ffff80003a965120,808,ffff80003a9651c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81e018,ffff80003a965270,ffff80003a9651c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a965270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a965270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x912293310, 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(0xffffffff8389dfe8, 0xffff8000014c506a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a964dd0,0,ffff80003a964d40,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001494c00,ffff80003a964e78,ffff80003a964dd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd8061dfbe00,ffff800010fdb7c8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdb7c8,fffffd8061dfbe00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdb7c8,0,ffff80003a965028,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81e018,3,ffff80003a965120,808,ffff80003a9651c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81e018,ffff80003a965270,ffff80003a9651c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a965270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a965270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x912293310, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff80003a964c20 rbx 0xde rdx 0 rcx 0xffff8000014c4f80 rax 0xfffffd8061dfbde0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x88195489b0d627b0 r11 0x6a00f5744946d7 r12 0x19 r13 0xfffffd8061dfbd00 r14 0xfffffd8061dfc4e0 r15 0xffff800000039058 rip 0xffffffff81a4f227 arp_rtrequest+0x657 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a964ba0 ss 0x10 arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=272588 pid=51076 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=0xffff80002a81e2b0,0xffff80003a955a28 process=0xffff8000ffff4020 user=0xffff80003a960000, vmspace=0xfffffd807821a460 estcpu=9, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90164 260633 66891 0 2 0 syz-executor 90164 519632 66891 0 2 0x4000000 syz-executor 51076 34253 34802 0 2 0 syz-executor *51076 272588 34802 0 7 0x4000000 syz-executor 99995 464144 94140 0 2 0 syz-executor 99995 340389 94140 0 2 0x4000000 syz-executor 64483 24748 25212 0 2 0x10 syz-executor 64483 457120 25212 0 3 0x4000090 fsleep syz-executor 34115 258290 41838 60928 2 0x10 syz-executor 34115 369126 41838 60928 3 0x4000090 fsleep syz-executor 30660 72950 39554 0 2 0 syz-executor 30660 523440 39554 0 3 0x4000080 kqsel syz-executor 30660 186435 39554 0 3 0x4000080 fsleep syz-executor 62714 188187 2492 0 2 0x100002 ndp 2492 410909 43520 0 3 0x10008a sigsusp sh 81461 437922 86017 0 2 0 syz-executor 81461 148911 86017 0 3 0x4000080 fsleep syz-executor 25212 43707 80321 0 3 0x82 nanoslp syz-executor 34802 319470 80321 0 3 0x82 nanoslp syz-executor 39554 285201 80321 0 3 0x82 nanoslp syz-executor 43520 58526 80321 0 3 0x82 wait syz-executor 66891 203835 80321 0 3 0x82 nanoslp syz-executor 86017 477508 80321 0 3 0x82 nanoslp syz-executor 41838 72019 80321 0 3 0x82 nanoslp syz-executor 94140 507933 80321 0 3 0x82 nanoslp syz-executor 80321 278362 76651 0 3 0x82 kqread syz-executor 76651 387523 89723 0 3 0x10008a sigsusp ksh 89723 447815 69062 0 3 0x98 kqread sshd-session 69062 181613 90417 0 3 0x92 kqread sshd-session 56922 257190 1 0 3 0x100083 ttyin getty 90417 495633 1 0 3 0x88 kqread sshd 15103 341115 68070 73 2 0x1100010 syslogd 68070 54593 1 0 3 0x100082 sbwait syslogd 72383 260675 1 0 3 0x100080 kqread resolvd 91385 495834 15062 77 3 0x100092 kqread dhcpleased 66364 143314 15062 77 3 0x100092 kqread dhcpleased 15062 57536 1 0 3 0x80 kqread dhcpleased 81357 154165 0 0 3 0x14200 bored smr 25945 127898 0 0 2 0x14200 zerothread 60169 379900 0 0 3 0x14200 aiodoned aiodoned 61635 435152 0 0 3 0x14200 syncer update 41198 435763 0 0 3 0x14200 cleaner cleaner 32064 69872 0 0 3 0x14200 reaper reaper 51955 467025 0 0 3 0x14200 pgdaemon pagedaemon 31666 41514 0 0 3 0x14200 bored viomb 26890 270764 0 0 3 0x40014200 acpi0 acpi0 88502 204860 0 0 3 0x14200 bored softnet7 26500 376231 0 0 3 0x14200 bored softnet6 17064 343582 0 0 3 0x14200 bored softnet5 49363 81186 0 0 3 0x14200 bored softnet4 64510 31432 0 0 3 0x14200 bored softnet3 53185 520317 0 0 3 0x14200 bored softnet2 671 359862 0 0 3 0x14200 bored softnet1 53461 107869 0 0 3 0x14200 bored softnet0 67404 322231 0 0 3 0x14200 bored systqmp 59551 6358 0 0 3 0x14200 bored systq 34952 94767 0 0 3 0x40014200 tmoslp softclock 20347 516036 0 0 3 0x40014200 idle0 1 217741 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 10177 11054K 11283K 166960K 11320 0 pcb 19 12K 12K 166960K 23 0 rtable 214 7K 7K 166960K 276 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 6 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 2K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1353 85K 85K 166960K 1376 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 97K 166960K 150 0 proc 58 59K 124K 166960K 473 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 8 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 37 175K 175K 166960K 37 0 exec 0 0K 1K 166960K 347 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 225 161K 167K 166960K 2887 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 41 82K 96K 166960K 1182 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 3 0 NDP 11 0K 2K 166960K 27 0 temp 34 8634K 8698K 166960K 3942 0 kqueue 13 20K 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 39 0 33 1 0 1 1 0 8 0 rtentry 136 96 0 1 4 0 4 4 0 8 0 unpcb 144 47 0 27 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 10 0 3 1 0 1 1 0 8 0 arp 88 10 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 72 0 58 2 0 2 2 0 8 0 nd6 104 16 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 256 437 0 0 28 0 28 28 0 8 0 art_table 40 439 0 0 5 0 5 5 0 8 0 art_node 32 96 0 11 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1575 0 66 95 0 95 95 0 8 0 ffsino 256 1575 0 66 95 0 95 95 0 8 0 nchpl 144 1783 0 100 63 0 63 63 0 8 0 uvmvnodes 80 1675 0 0 35 0 35 35 0 8 0 vnodes 216 1675 0 0 94 0 94 94 0 8 0 namei 1024 5193 0 5192 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6283 0 6283 8 0 8 8 1 8 8 plimitpl 152 31 0 13 1 0 1 1 0 8 0 sigapl 424 434 0 383 7 0 7 7 0 8 1 knotepl 120 3981 0 3934 9 0 9 9 0 8 7 kqueuepl 184 25 0 14 1 0 1 1 0 8 0 pipepl 304 99 0 72 3 0 3 3 0 8 0 fdescpl 448 414 0 383 5 0 5 5 0 8 0 filepl 120 1365 0 1136 8 0 8 8 0 8 1 lockfpl 104 12 0 8 1 0 1 1 0 8 0 lockfspl 48 8 0 4 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 76 0 63 1 0 1 1 0 8 0 zombiepl 144 383 0 383 1 0 1 1 0 8 1 processpl 1152 434 0 383 5 0 5 5 0 8 1 procpl 664 465 0 406 6 0 6 6 0 8 0 sockpl 552 158 0 118 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2444 0 2393 14 0 14 14 0 8 6 mcl2k 2048 180 0 176 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3886 0 3730 10 0 10 10 0 8 0 bufpl 280 2840 0 117 195 0 195 195 0 8 0 anonpl 24 84957 0 81824 23 0 23 23 0 187 3 amapchunkpl 152 8087 0 7634 19 0 19 19 0 158 0 amappl16 200 1298 0 1283 4 0 4 4 0 8 3 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 103 0 92 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 0 1 1 0 8 1 amappl12 168 1022 0 991 3 0 3 3 0 8 1 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 256 0 255 1 0 1 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 99 0 88 1 0 1 1 0 8 0 amappl6 120 167 0 163 1 0 1 1 0 8 0 amappl5 112 113 0 107 1 0 1 1 0 8 0 amappl4 104 264 0 249 1 0 1 1 0 8 0 amappl3 96 1281 0 1179 3 0 3 3 0 8 0 amappl2 88 607 0 551 2 0 2 2 0 8 0 amappl1 80 7886 0 7318 13 0 13 13 0 8 0 amappl 88 2247 0 2092 4 0 4 4 0 92 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 414 0 383 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 414 0 383 1 0 1 1 0 8 0 vmmpekpl 168 4846 0 4822 2 0 2 2 0 8 0 vmmpepl 168 32487 0 30620 83 0 83 83 0 357 1 vmsppl 368 413 0 383 4 0 4 4 0 8 1 rwobjpl 40 13098 0 10575 26 0 26 26 0 8 0 pdppl 4096 834 0 766 96 20 76 82 0 8 8 pvpl 32 197575 0 188689 72 0 72 72 0 265 0 pmappl 216 413 0 383 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 362 0 20 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a964dd0,0,ffff80003a964d40,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001494c00,ffff80003a964e78,ffff80003a964dd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd8061dfbe00,ffff800010fdb7c8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdb7c8,fffffd8061dfbe00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdb7c8,0,ffff80003a965028,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81e018,3,ffff80003a965120,808,ffff80003a9651c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81e018,ffff80003a965270,ffff80003a9651c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a965270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a965270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x912293310, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8061dfc4e0) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a964dd0,0,ffff80003a964d40,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001494c00,ffff80003a964e78,ffff80003a964dd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd8061dfbe00,ffff800010fdb7c8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdb7c8,fffffd8061dfbe00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdb7c8,0,ffff80003a965028,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81e018,3,ffff80003a965120,808,ffff80003a9651c0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81e018,ffff80003a965270,ffff80003a9651c0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a965270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a965270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x912293310, count: -10