uvm_fault(0xffffffff83939df8, 0xffff80000149f08a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *114238 40507 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a9614e8,0,ffff80003a961460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149bf00,ffff80003a961590,ffff80003a9614e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd80713c8d00,ffff80000148aad8) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff80000148aad8,fffffd80713c8d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000148aad8,0,ffff80003a961738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c993738,3,ffff80003a961830,808,ffff80003a9618e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c993738,ffff80003a961990,ffff80003a9618e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a961990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a961990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbe8794e22a0, 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(0xffffffff83939df8, 0xffff80000149f08a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a9614e8,0,ffff80003a961460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149bf00,ffff80003a961590,ffff80003a9614e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd80713c8d00,ffff80000148aad8) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff80000148aad8,fffffd80713c8d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000148aad8,0,ffff80003a961738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c993738,3,ffff80003a961830,808,ffff80003a9618e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c993738,ffff80003a961990,ffff80003a9618e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a961990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a961990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbe8794e22a0, count: -10 ddb> show registers rdi 0xffff80002b516000 rsi 0x9ab rbp 0xffff80003a961330 rbx 0xde rdx 0xffff80002b516000 rcx 0x100040600080100 rax 0xfffffd80713c80e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x80c0d788545be7a8 r11 0x87b941ffcd7b3cc1 r12 0x1b r13 0xfffffd80713c8000 r14 0xfffffd807c899788 r15 0xffff80000149efa0 rip 0xffffffff814f4e0e arp_rtrequest+0x65e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a9612b0 ss 0x10 arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=114238 pid=40507 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=0xffff80003c993218,0xffffffff838bdde0 process=0xffff80002d51db78 user=0xffff80003a95c000, vmspace=0xfffffd806ba71e70 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 40507 197252 74456 0 2 0 syz-executor *40507 114238 74456 0 7 0x4000000 syz-executor 25331 250894 34651 0 2 0 syz-executor 25331 264459 34651 0 3 0x4000080 fsleep syz-executor 30995 362829 95865 0 2 0 syz-executor 30995 95143 95865 0 2 0x4000000 syz-executor 30995 210211 95865 0 2 0x4000000 syz-executor 62005 432806 40040 0 2 0 syz-executor 62005 337741 40040 0 3 0x4000080 fsleep syz-executor 62005 445911 40040 0 3 0x4000080 ttyin syz-executor 62005 94592 40040 0 3 0x4000080 fsleep syz-executor 70665 429202 23745 0 3 0x80 nanoslp syz-executor 70665 505710 23745 0 3 0x4000080 lockf syz-executor 70665 235867 23745 0 3 0x4000080 fsleep syz-executor 76189 230664 0 0 3 0x14200 bored sosplice 9665 202768 82512 0 3 0x90 nanoslp syz-executor 9665 34600 82512 0 3 0x4000090 kqread syz-executor 9665 356630 82512 0 3 0x4000090 fsleep syz-executor 40040 8064 97315 0 3 0x82 nanoslp syz-executor 82512 47234 97315 0 3 0x82 nanoslp syz-executor 99133 325094 97315 0 2 0x2 syz-executor 34651 496491 97315 0 3 0x82 nanoslp syz-executor 95865 293109 97315 0 3 0x82 nanoslp syz-executor 23745 373522 97315 0 3 0x82 nanoslp syz-executor 74456 228389 97315 0 3 0x82 nanoslp syz-executor 88255 66763 97315 0 2 0x2 syz-executor 97315 234025 14703 0 3 0x82 kqread syz-executor 14703 117442 6603 0 3 0x10008a sigsusp ksh 6603 426076 76641 0 3 0x98 kqread sshd-session 76641 325266 9001 0 3 0x92 kqread sshd-session 87829 310074 1 0 3 0x100083 ttyin getty 9001 394965 1 0 3 0x88 kqread sshd 89479 300454 13289 73 3 0x1100090 kqread syslogd 13289 322391 1 0 3 0x100082 sbwait syslogd 93094 45366 1 0 3 0x100080 kqread resolvd 19914 523078 71152 77 3 0x100092 kqread dhcpleased 68158 433039 71152 77 3 0x100092 kqread dhcpleased 71152 405443 1 0 3 0x80 kqread dhcpleased 80662 179457 0 0 3 0x14200 bored smr 61655 227679 0 0 2 0x14200 zerothread 49471 467965 0 0 3 0x14200 aiodoned aiodoned 17447 118243 0 0 3 0x14200 syncer update 16325 377557 0 0 3 0x14200 cleaner cleaner 40676 359651 0 0 3 0x14200 reaper reaper 53867 255040 0 0 3 0x14200 pgdaemon pagedaemon 90753 330281 0 0 3 0x14200 bored viomb 10891 239041 0 0 3 0x40014200 acpi0 acpi0 23210 171143 0 0 3 0x14200 bored softnet7 46449 30625 0 0 3 0x14200 bored softnet6 25995 416635 0 0 3 0x14200 bored softnet5 67284 295671 0 0 3 0x14200 bored softnet4 180 402436 0 0 3 0x14200 bored softnet3 38777 167583 0 0 3 0x14200 bored softnet2 81599 332592 0 0 3 0x14200 bored softnet1 53708 250497 0 0 3 0x14200 bored softnet0 43518 248263 0 0 3 0x14200 bored systqmp 23815 517814 0 0 3 0x14200 bored systq 10312 267812 0 0 3 0x40014200 tmoslp softclock 32947 268321 0 0 3 0x40014200 idle0 1 469563 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 10185 11124K 11221K 166960K 11336 0 pcb 17 13K 14K 166960K 75 0 rtable 226 7K 7K 166960K 296 0 pf 31 13K 20K 166960K 36 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 40 0 iov 0 0K 8K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1414 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 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 97K 166960K 207 0 sigio 0 0K 0K 166960K 3 0 proc 61 67K 124K 166960K 483 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 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 2K 166960K 421 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 221 151K 160K 166960K 3375 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 37 74K 96K 166960K 1234 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 11 0K 2K 166960K 27 0 temp 37 8662K 8726K 166960K 4531 0 kqueue 14 22K 28K 166960K 32 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 41 0 36 1 0 1 1 0 8 0 rtentry 136 99 0 1 4 0 4 4 0 8 0 unpcb 144 86 0 69 2 0 2 2 0 8 1 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 24 0 19 1 0 1 1 0 8 0 arp 88 11 0 0 1 0 1 1 0 8 0 inpcb 328 140 0 130 4 0 4 4 0 8 3 nd6 104 17 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 40 456 0 0 5 0 5 5 0 8 0 art_node 32 99 0 11 1 0 1 1 0 8 0 semapl 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 1686 0 181 95 0 95 95 0 8 0 ffsino 256 1686 0 181 95 0 95 95 0 8 0 nchpl 144 1970 0 288 63 0 63 63 0 8 0 uvmvnodes 80 1797 0 0 37 0 37 37 0 8 0 vnodes 216 1797 0 0 100 0 100 100 0 8 0 namei 1024 6415 0 6414 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 7436 0 7436 8 0 8 8 1 8 8 plimitpl 152 37 0 19 1 0 1 1 0 8 0 sigapl 424 490 0 441 7 0 7 7 0 8 1 knotepl 120 5716 0 5668 2 0 2 2 0 8 0 kqueuepl 184 39 0 26 1 0 1 1 0 8 0 pipepl 304 101 0 74 3 0 3 3 0 8 0 fdescpl 448 469 0 441 5 0 5 5 0 8 1 filepl 120 2066 0 1839 10 0 10 10 0 8 0 lockfpl 104 24 0 19 1 0 1 1 0 8 0 lockfspl 48 11 0 7 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 125 0 111 1 0 1 1 0 8 0 zombiepl 144 441 0 441 1 0 1 1 0 8 1 processpl 1168 490 0 441 5 0 5 5 0 8 1 procpl 656 606 0 546 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 552 269 0 237 5 0 5 5 0 8 2 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 2485 0 2434 13 0 13 13 0 8 6 mcl2k 2048 252 0 249 1 0 1 1 0 8 0 mtagpl 96 5 0 5 1 0 1 1 0 8 1 mbufpl 256 4919 0 4768 11 0 11 11 0 8 0 bufpl 280 3268 0 117 226 0 226 226 0 8 0 anonpl 24 89833 0 86781 28 0 28 28 0 187 1 amapchunkpl 152 9695 0 9233 21 0 21 21 0 158 1 amappl16 200 1398 0 1376 6 0 6 6 0 8 0 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 0 1 1 0 8 1 amappl12 168 1079 0 1051 3 0 3 3 0 8 1 amappl11 160 41 0 31 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 0 1 1 0 8 1 amappl9 144 250 0 250 1 0 1 1 0 8 1 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 99 0 89 1 0 1 1 0 8 0 amappl6 120 169 0 165 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 268 0 252 1 0 1 1 0 8 0 amappl3 96 1640 0 1535 3 0 3 3 0 8 0 amappl2 88 613 0 560 2 0 2 2 0 8 0 amappl1 80 8331 0 7787 13 0 13 13 0 8 0 amappl 88 2724 0 2566 5 0 5 5 0 92 1 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 24 469 0 441 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 469 0 441 1 0 1 1 0 8 0 vmmpekpl 168 5325 0 5298 2 0 2 2 0 8 0 vmmpepl 168 35605 0 33840 87 0 87 87 0 357 5 vmsppl 368 468 0 441 4 0 4 4 0 8 1 rwobjpl 40 14101 0 11471 28 0 28 28 0 8 0 pdppl 4096 945 0 882 97 28 69 83 0 8 6 pvpl 32 218898 0 209994 94 0 94 94 0 265 8 pmappl 216 468 0 441 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 371 0 28 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a9614e8,0,ffff80003a961460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149bf00,ffff80003a961590,ffff80003a9614e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd80713c8d00,ffff80000148aad8) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff80000148aad8,fffffd80713c8d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000148aad8,0,ffff80003a961738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c993738,3,ffff80003a961830,808,ffff80003a9618e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c993738,ffff80003a961990,ffff80003a9618e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a961990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a961990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbe8794e22a0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd807c899788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a9614e8,0,ffff80003a961460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149bf00,ffff80003a961590,ffff80003a9614e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd80713c8d00,ffff80000148aad8) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff80000148aad8,fffffd80713c8d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000148aad8,0,ffff80003a961738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c993738,3,ffff80003a961830,808,ffff80003a9618e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c993738,ffff80003a961990,ffff80003a9618e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a961990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a961990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbe8794e22a0, count: -10