uvm_fault(0xffffffff839ad868, 0xffff80000148f02a, 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 *167445 29349 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c9311e0,0,ffff80003c931150,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001489300,ffff80003c931288,ffff80003c9311e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806d7e0200,ffff800010fddc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fddc10,fffffd806d7e0200,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fddc10,0,ffff80003c931438,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7b5a08,4,ffff80003c931530,808,ffff80003c9315d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7b5a08,ffff80003c931680,ffff80003c9315d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c931680) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c931680) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x935c6d65470, 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(0xffffffff839ad868, 0xffff80000148f02a, 0, 1) -> e ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c9311e0,0,ffff80003c931150,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001489300,ffff80003c931288,ffff80003c9311e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806d7e0200,ffff800010fddc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fddc10,fffffd806d7e0200,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fddc10,0,ffff80003c931438,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7b5a08,4,ffff80003c931530,808,ffff80003c9315d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7b5a08,ffff80003c931680,ffff80003c9315d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c931680) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c931680) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x935c6d65470, count: -10 ddb> show registers rdi 0xffff80002ccfc000 rsi 0x96e rbp 0xffff80003c931030 rbx 0xde rdx 0xffff80002ccfc000 rcx 0xffff80000148ef40 rax 0xfffffd806d7e0be0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x4cad727710d8248b r11 0x89afa5b51ff8ac56 r12 0x18 r13 0xfffffd806d7e0b00 r14 0xfffffd806ccda1b0 r15 0xffff80000019f058 rip 0xffffffff82263644 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c930fb0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=167445 pid=29349 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=0xffff80002a7b5ca0,0xffff80002a7b4a88 process=0xffff8000ffff8018 user=0xffff80003c92c000, vmspace=0xfffffd806cb3ba20 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 89294 365108 68285 0 2 0 syz-executor 89294 223969 68285 0 3 0x4000080 fsleep syz-executor 65909 496431 12543 0 2 0 syz-executor 65909 520695 12543 0 3 0x4000080 fsleep syz-executor 29349 259633 702 0 2 0 syz-executor *29349 167445 702 0 7 0x4000000 syz-executor 49231 348588 84181 0 2 0x4000000 syz-executor 49231 403411 84181 0 3 0x4000080 fsleep syz-executor 10622 191167 0 0 3 0x14200 acct acct 30321 249778 50435 0 2 0 syz-executor 30321 435274 50435 0 3 0x4000080 fsleep syz-executor 40728 145647 5368 0 2 0 syz-executor 40728 275267 5368 0 3 0x4000080 fsleep syz-executor 10673 459600 25991 0 2 0x2 sh 84181 3163 3891 0 3 0x82 nanoslp syz-executor 25991 89345 3891 0 3 0x82 wait syz-executor 68285 520664 3891 0 2 0xc82 syz-executor 50435 373843 3891 0 3 0x82 nanoslp syz-executor 12543 395682 3891 0 2 0xc82 syz-executor 11201 349196 3891 0 2 0x2 syz-executor 702 522464 3891 0 2 0xc82 syz-executor 5368 129090 3891 0 3 0x82 nanoslp syz-executor 3891 426140 49960 0 3 0x82 kqread syz-executor 49960 138729 50696 0 3 0x10008a sigsusp ksh 50696 57448 92323 0 3 0x98 kqread sshd-session 92323 366831 30527 0 3 0x92 kqread sshd-session 72739 407877 1 0 3 0x100083 ttyin getty 30527 40878 1 0 3 0x88 kqread sshd 71840 289404 88553 73 3 0x1100090 kqread syslogd 88553 461150 1 0 3 0x100082 sbwait syslogd 49080 503421 1 0 3 0x100080 kqread resolvd 68333 356831 33772 77 3 0x100092 kqread dhcpleased 69432 187140 33772 77 3 0x100092 kqread dhcpleased 33772 155938 1 0 3 0x80 kqread dhcpleased 74239 168650 0 0 3 0x14200 bored smr 63579 416004 0 0 2 0x14200 zerothread 70723 235926 0 0 3 0x14200 aiodoned aiodoned 86000 42468 0 0 3 0x14200 syncer update 95780 113564 0 0 3 0x14200 cleaner cleaner 44485 367491 0 0 3 0x14200 reaper reaper 71394 220205 0 0 3 0x14200 pgdaemon pagedaemon 41514 225659 0 0 3 0x14200 bored viomb 16075 297318 0 0 3 0x40014200 acpi0 acpi0 51933 442686 0 0 3 0x14200 bored softnet0 99396 357888 0 0 3 0x14200 bored systqmp 9480 32809 0 0 3 0x14200 bored systq 8864 334699 0 0 3 0x40014200 tmoslp softclock 70942 475834 0 0 3 0x40014200 idle0 1 35955 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 10172 11107K 11268K 166960K 11276 0 pcb 17 12K 12K 166960K 25 0 rtable 224 7K 7K 166960K 340 0 pf 30 12K 12K 166960K 30 0 ifaddr 39 6K 6K 166960K 41 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 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1341 84K 85K 166960K 1368 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 17 61K 89K 166960K 138 0 proc 58 59K 91K 166960K 451 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 2 0K 0K 166960K 2 0 in_multi 89 6K 6K 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 43 201K 201K 166960K 43 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 211 150K 158K 166960K 3083 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 38 76K 94K 166960K 1186 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 25 1K 1K 166960K 25 0 temp 34 8646K 8710K 166960K 3697 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 35 0 31 1 0 1 1 0 8 0 rtentry 136 101 0 1 4 0 4 4 0 8 0 unpcb 144 37 0 22 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 11 0 6 1 0 1 1 0 8 0 arp 96 16 0 0 1 0 1 1 0 8 0 inpcb 328 64 0 56 1 0 1 1 0 8 0 nd6 112 21 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 256 408 0 0 26 0 26 26 0 8 0 art_table 40 410 0 0 5 0 5 5 0 8 0 art_node 32 101 0 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1567 0 62 95 0 95 95 0 8 0 ffsino 256 1567 0 62 95 0 95 95 0 8 0 nchpl 144 1769 0 85 63 0 63 63 0 8 0 vnodes 216 1658 0 0 93 0 93 93 0 8 0 namei 1024 5035 0 5034 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5683 0 5683 2 0 2 2 1 8 2 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 425 0 382 6 0 6 6 0 8 0 knotepl 120 2753 0 2705 2 0 2 2 0 8 0 kqueuepl 184 19 0 9 1 0 1 1 0 8 0 pipepl 304 112 0 85 3 0 3 3 0 8 0 fdescpl 448 411 0 382 5 0 5 5 0 8 0 filepl 120 1400 0 1191 7 0 7 7 0 8 0 lockfpl 104 12 0 10 1 0 1 1 0 8 0 lockfspl 48 7 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 83 0 72 1 0 1 1 0 8 0 zombiepl 144 382 0 382 1 0 1 1 0 8 1 processpl 1152 425 0 382 4 0 4 4 0 8 0 procpl 664 443 0 394 5 0 5 5 0 8 0 sockpl 552 136 0 109 3 0 3 3 0 8 1 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2442 0 2390 13 0 13 13 0 8 5 mcl2k 2048 182 0 180 2 0 2 2 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4030 0 3906 11 0 11 11 0 8 1 bufpl 280 2252 0 118 153 0 153 153 0 8 0 anonpl 24 100613 0 97713 23 0 23 23 0 187 4 amapchunkpl 152 8466 0 8042 18 0 18 18 0 158 1 amappl16 200 2016 0 2000 5 0 5 5 0 8 4 amappl15 192 12 0 12 1 0 1 1 0 8 1 amappl14 184 8 0 8 1 0 1 1 0 8 1 amappl13 176 395 0 394 1 0 1 1 0 8 0 amappl12 168 773 0 736 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 45 0 35 1 0 1 1 0 8 0 amappl9 144 251 0 251 1 0 1 1 0 8 1 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 74 0 73 1 0 1 1 0 8 0 amappl6 120 255 0 243 1 0 1 1 0 8 0 amappl5 112 71 0 64 1 0 1 1 0 8 0 amappl4 104 367 0 343 1 0 1 1 0 8 0 amappl3 96 1270 0 1192 3 0 3 3 0 8 1 amappl2 88 519 0 451 2 0 2 2 0 8 0 amappl1 80 8614 0 8079 13 0 13 13 0 8 1 amappl 88 2403 0 2260 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 24 411 0 382 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 411 0 382 1 0 1 1 0 8 0 vmmpekpl 168 5054 0 5025 2 0 2 2 0 8 0 vmmpepl 168 34417 0 32720 77 0 77 77 0 357 1 vmsppl 368 410 0 382 4 0 4 4 0 8 0 rwobjpl 40 13035 0 12133 11 0 11 11 0 8 1 pdppl 4096 828 0 764 92 14 78 78 0 8 14 pvpl 32 216251 0 208318 76 0 76 76 0 265 10 pmappl 216 410 0 382 2 0 2 2 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,fffffd806ccda1b0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c9311e0,0,ffff80003c931150,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001489300,ffff80003c931288,ffff80003c9311e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806d7e0200,ffff800010fddc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fddc10,fffffd806d7e0200,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fddc10,0,ffff80003c931438,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7b5a08,4,ffff80003c931530,808,ffff80003c9315d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7b5a08,ffff80003c931680,ffff80003c9315d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c931680) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c931680) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x935c6d65470, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806ccda1b0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c9311e0,0,ffff80003c931150,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001489300,ffff80003c931288,ffff80003c9311e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806d7e0200,ffff800010fddc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fddc10,fffffd806d7e0200,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fddc10,0,ffff80003c931438,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7b5a08,4,ffff80003c931530,808,ffff80003c9315d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7b5a08,ffff80003c931680,ffff80003c9315d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c931680) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c931680) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x935c6d65470, count: -10