uvm_fault(0xffffffff8392e138, 0xffff80000149506a, 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 * 613 89377 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003393f190,0,ffff80003393f100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001492e00,ffff80003393f238,ffff80003393f190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd80684d4d00,ffff800010fdd378) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800010fdd378,fffffd80684d4d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800010fdd378,0,ffff80003393f3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800039153778,3,ffff80003393f4e0,808,ffff80003393f580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff800039153778,ffff80003393f630,ffff80003393f580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003393f630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003393f630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8d14e67420, 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(0xffffffff8392e138, 0xffff80000149506a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003393f190,0,ffff80003393f100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001492e00,ffff80003393f238,ffff80003393f190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd80684d4d00,ffff800010fdd378) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800010fdd378,fffffd80684d4d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800010fdd378,0,ffff80003393f3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800039153778,3,ffff80003393f4e0,808,ffff80003393f580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff800039153778,ffff80003393f630,ffff80003393f580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003393f630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003393f630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8d14e67420, count: -10 ddb> show registers rdi 0xffff80002cd2e000 rsi 0x941 rbp 0xffff80003393efe0 rbx 0xde rdx 0xffff80002cd2e000 rcx 0xffff800001494f80 rax 0xfffffd80684d47e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xe1d41a7cd07dcdac r11 0x57993e96d627013e r12 0x1b r13 0xfffffd80684d4700 r14 0xfffffd80684e5920 r15 0xffff800000039058 rip 0xffffffff82e68397 arp_rtrequest+0x657 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003393ef60 ss 0x10 arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=613 pid=89377 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=0xffff8000391527e8,0xffff800039152fc0 process=0xffff80002cd2cdb8 user=0xffff80003393a000, vmspace=0xfffffd806ba53740 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 83226 345157 89308 0 2 0 syz-executor 4011 6214 88637 0 2 0 syz-executor 4011 223425 88637 0 3 0x4000080 fsleep syz-executor 4011 61670 88637 0 3 0x4000080 fsleep syz-executor 88270 383930 224 0 2 0 syz-executor 88270 334294 224 0 3 0x4000080 fsleep syz-executor 52197 444763 34374 0 3 0x3000 suspend syz-executor 52197 72997 34374 0 2 0x4081000 syz-executor 70636 6880 10225 0 2 0 syz-executor 70636 106682 10225 0 3 0x4000080 fsleep syz-executor 21295 350471 50064 -1 2 0x10 syz-executor 21295 121704 50064 -1 3 0x4000090 fsleep syz-executor 14740 83268 94845 0 2 0 syz-executor 14740 70893 94845 0 3 0x4000080 fsleep syz-executor 89377 273445 43216 0 2 0 syz-executor *89377 613 43216 0 7 0x4000000 syz-executor 88637 461675 38312 0 3 0x82 nanoslp syz-executor 224 411277 38312 0 2 0xc82 syz-executor 50064 22734 38312 0 3 0x82 nanoslp syz-executor 34374 418323 38312 0 3 0x82 nanoslp syz-executor 94845 3727 38312 0 3 0x82 nanoslp syz-executor 89308 302555 38312 0 3 0x82 nanoslp syz-executor 43216 293444 38312 0 2 0xc82 syz-executor 10225 359172 38312 0 3 0x82 nanoslp syz-executor 38312 416492 2369 0 3 0x82 kqread syz-executor 2369 182285 95434 0 3 0x10008a sigsusp ksh 95434 391979 46914 0 3 0x98 kqread sshd-session 46914 298589 82814 0 3 0x92 kqread sshd-session 10490 227867 1 0 3 0x100083 ttyin getty 82814 325161 1 0 3 0x88 kqread sshd 75921 248982 40010 73 3 0x1100090 kqread syslogd 40010 315127 1 0 3 0x100082 sbwait syslogd 71329 256360 1 0 3 0x100080 kqread resolvd 70309 134630 69986 77 3 0x100092 kqread dhcpleased 38762 325225 69986 77 3 0x100092 kqread dhcpleased 69986 143674 1 0 3 0x80 kqread dhcpleased 7593 191136 0 0 3 0x14200 bored smr 98047 241074 0 0 2 0x14200 zerothread 7623 211143 0 0 3 0x14200 aiodoned aiodoned 67313 8683 0 0 3 0x14200 syncer update 24222 246298 0 0 3 0x14200 cleaner cleaner 40327 302028 0 0 3 0x14200 reaper reaper 85086 12030 0 0 3 0x14200 pgdaemon pagedaemon 93393 441893 0 0 3 0x14200 bored viomb 13675 154317 0 0 3 0x40014200 acpi0 acpi0 22897 97866 0 0 3 0x14200 bored softnet7 92010 424625 0 0 3 0x14200 bored softnet6 84506 473791 0 0 3 0x14200 bored softnet5 6247 111237 0 0 3 0x14200 bored softnet4 25950 15003 0 0 3 0x14200 bored softnet3 98075 79577 0 0 3 0x14200 bored softnet2 17038 93873 0 0 3 0x14200 bored softnet1 31506 295174 0 0 3 0x14200 bored softnet0 8384 483787 0 0 3 0x14200 smrbar systqmp 18428 249757 0 0 3 0x14200 bored systq 93503 132714 0 0 3 0x40014200 tmoslp softclock 40441 258612 0 0 3 0x40014200 idle0 1 435675 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 10171 11040K 11053K 166960K 11248 0 pcb 17 12K 12K 166960K 18 0 rtable 220 7K 7K 166960K 289 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 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1351 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 97K 166960K 139 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 4 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 37 175K 175K 166960K 37 0 exec 0 0K 1K 166960K 343 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 212 150K 159K 166960K 2709 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 96K 166960K 1158 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 8630K 8694K 166960K 3630 0 kqueue 13 20K 20K 166960K 21 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 38 0 33 1 0 1 1 0 8 0 rtentry 136 96 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 2 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 59 0 48 2 0 2 2 0 8 1 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 256 435 0 0 28 0 28 28 0 8 0 art_table 40 437 0 0 5 0 5 5 0 8 0 art_node 32 96 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1545 0 41 95 0 95 95 0 8 0 ffsino 256 1545 0 41 95 0 95 95 0 8 0 nchpl 144 1729 0 48 63 0 63 63 0 8 0 uvmvnodes 80 1627 0 0 34 0 34 34 0 8 0 vnodes 216 1627 0 0 91 0 91 91 0 8 0 namei 1024 5043 0 5043 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6113 0 6113 8 0 8 8 1 8 8 plimitpl 152 27 0 10 1 0 1 1 0 8 0 sigapl 424 419 0 369 7 0 7 7 0 8 1 knotepl 120 3053 0 3006 2 0 2 2 0 8 0 kqueuepl 184 17 0 8 1 0 1 1 0 8 0 pipepl 304 98 0 71 3 0 3 3 0 8 0 fdescpl 448 399 0 369 5 0 5 5 0 8 1 filepl 120 1283 0 1066 7 0 7 7 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 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 71 0 59 1 0 1 1 0 8 0 zombiepl 144 370 0 369 1 0 1 1 0 8 0 processpl 1168 419 0 369 5 0 5 5 0 8 1 procpl 664 431 0 373 6 0 6 6 0 8 0 sockpl 552 130 0 97 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2394 0 2342 13 0 13 13 0 8 4 mcl2k 2048 149 0 148 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3770 0 3640 9 0 9 9 0 8 0 bufpl 280 2808 0 117 193 0 193 193 0 8 0 anonpl 24 96166 0 93188 23 0 23 23 0 187 3 amapchunkpl 152 7806 0 7357 18 0 18 18 0 158 0 amappl16 200 1827 0 1814 5 0 5 5 0 8 4 amappl15 192 43 0 43 1 0 1 1 0 8 1 amappl14 184 105 0 95 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1002 0 973 3 0 3 3 0 8 1 amappl11 160 45 0 34 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 0 1 1 0 8 1 amappl9 144 260 0 260 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 101 0 91 1 0 1 1 0 8 0 amappl6 120 173 0 170 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 267 0 252 1 0 1 1 0 8 0 amappl3 96 1183 0 1082 3 0 3 3 0 8 0 amappl2 88 608 0 553 2 0 2 2 0 8 0 amappl1 80 7890 0 7340 13 0 13 13 0 8 0 amappl 88 2081 0 1932 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 399 0 369 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 399 0 369 1 0 1 1 0 8 0 vmmpekpl 168 4719 0 4689 2 0 2 2 0 8 0 vmmpepl 168 32321 0 30495 80 0 80 80 0 357 0 vmsppl 368 398 0 369 4 0 4 4 0 8 1 rwobjpl 40 13510 0 11067 26 0 26 26 0 8 0 pdppl 4096 804 0 738 94 12 82 82 0 8 16 pvpl 32 204815 0 196796 68 0 68 68 0 265 2 pmappl 216 398 0 369 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 362 0 12 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003393f190,0,ffff80003393f100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001492e00,ffff80003393f238,ffff80003393f190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd80684d4d00,ffff800010fdd378) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800010fdd378,fffffd80684d4d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800010fdd378,0,ffff80003393f3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800039153778,3,ffff80003393f4e0,808,ffff80003393f580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff800039153778,ffff80003393f630,ffff80003393f580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003393f630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003393f630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8d14e67420, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd80684e5920) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003393f190,0,ffff80003393f100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001492e00,ffff80003393f238,ffff80003393f190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd80684d4d00,ffff800010fdd378) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800010fdd378,fffffd80684d4d00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800010fdd378,0,ffff80003393f3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff800039153778,3,ffff80003393f4e0,808,ffff80003393f580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff800039153778,ffff80003393f630,ffff80003393f580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003393f630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003393f630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8d14e67420, count: -10