uvm_fault(0xffffffff839514e8, 0xffff8000014a908a, 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 *122823 88937 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940d40,0,ffff80003c940cb0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495800,ffff80003c940de8,ffff80003c940d40,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb7eb00,ffff800010fe17c0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fe17c0,fffffd807eb7eb00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fe17c0,0,ffff80003c940f98,0,0,80a) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94b4e0,3,ffff80003c941090,80a,ffff80003c941130) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94b4e0,ffff80003c9411e0,ffff80003c941130) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9411e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9411e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe038d0b8200, 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(0xffffffff839514e8, 0xffff8000014a908a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940d40,0,ffff80003c940cb0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495800,ffff80003c940de8,ffff80003c940d40,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb7eb00,ffff800010fe17c0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fe17c0,fffffd807eb7eb00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fe17c0,0,ffff80003c940f98,0,0,80a) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94b4e0,3,ffff80003c941090,80a,ffff80003c941130) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94b4e0,ffff80003c9411e0,ffff80003c941130) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9411e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9411e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe038d0b8200, count: -10 ddb> show registers rdi 0xffff80002a8f6000 rsi 0x934 rbp 0xffff80003c940b90 rbx 0xde rdx 0xffff80002a8f6000 rcx 0xffff8000014a8fa0 rax 0xfffffd807eb7e8e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x109e9ad3f2e0dd69 r11 0x80efb7a9beca8e2 r12 0x1a r13 0xfffffd807eb7e800 r14 0xfffffd8073814898 r15 0xffff800000037058 rip 0xffffffff815fcda4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c940b10 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=122823 pid=88937 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=59, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c94ad18,0xffffffff8390a478 process=0xffff8000ffff9218 user=0xffff80003c93c000, vmspace=0xfffffd806c225180 estcpu=9, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98646 232661 32862 0 2 0 syz-executor 98646 373924 32862 0 3 0x4000000 bqwait syz-executor 98646 238451 32862 0 2 0x4000000 syz-executor 88937 183584 80250 0 2 0 syz-executor *88937 122823 80250 0 7 0x4000000 syz-executor 19211 197368 55840 0 2 0 syz-executor 19211 496344 55840 0 3 0x4000080 fsleep syz-executor 52240 135739 31818 0 2 0 syz-executor 55622 28946 12813 0 2 0 syz-executor 92822 493303 24771 0 2 0 syz-executor 92822 48691 24771 0 2 0x4000000 syz-executor 92822 304334 24771 0 2 0x4000000 syz-executor 17570 313731 70745 0 2 0 syz-executor 17570 502193 70745 0 2 0x4000000 syz-executor 46571 141228 71749 0 2 0x10 syz-executor 46571 19002 71749 0 3 0x4000090 fsleep syz-executor 46571 296913 71749 0 2 0x4000010 syz-executor 46571 45763 71749 0 3 0x4000090 fsleep syz-executor 31818 412443 38292 0 2 0x2 syz-executor 24771 302905 38292 0 3 0x82 nanoslp syz-executor 70745 508900 38292 0 3 0x82 nanoslp syz-executor 32862 237231 38292 0 3 0x82 nanoslp syz-executor 71749 219206 38292 0 3 0x82 nanoslp syz-executor 12813 87647 38292 0 3 0x82 nanoslp syz-executor 55840 419037 38292 0 3 0x82 nanoslp syz-executor 80250 497088 38292 0 3 0x82 nanoslp syz-executor 38292 21525 96315 0 3 0x82 kqread syz-executor 96315 166609 23758 0 3 0x10008a sigsusp ksh 23758 411625 27611 0 3 0x98 kqread sshd-session 27611 395349 35317 0 3 0x92 kqread sshd-session 64573 479219 1 0 3 0x100083 ttyin getty 35317 417077 1 0 3 0x88 kqread sshd 22348 106200 30742 73 3 0x1100090 kqread syslogd 30742 2327 1 0 3 0x100082 sbwait syslogd 54180 374392 1 0 3 0x100080 kqread resolvd 47881 474715 95027 77 3 0x100092 kqread dhcpleased 20957 216372 95027 77 3 0x100092 kqread dhcpleased 95027 272016 1 0 3 0x80 kqread dhcpleased 76033 489815 0 0 3 0x14200 bored smr 7676 324815 0 0 2 0x14200 zerothread 41368 466070 0 0 3 0x14200 aiodoned aiodoned 23843 468752 0 0 3 0x14200 syncer update 64387 495843 0 0 3 0x14200 cleaner cleaner 1849 318395 0 0 3 0x14200 reaper reaper 63304 371608 0 0 3 0x14200 pgdaemon pagedaemon 67674 523807 0 0 3 0x14200 bored viomb 10548 78118 0 0 3 0x40014200 acpi0 acpi0 53265 13159 0 0 3 0x14200 bored softnet0 16181 439533 0 0 3 0x14200 bored systqmp 46574 62855 0 0 3 0x14200 bored systq 79456 240164 0 0 3 0x40014200 tmoslp softclock 34618 21372 0 0 3 0x40014200 idle0 1 279179 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 10173 11057K 11202K 166960K 11269 0 pcb 18 12K 12K 166960K 24 0 rtable 246 8K 8K 166960K 372 0 pf 30 12K 13K 166960K 31 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 4K 166960K 32 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1342 84K 84K 166960K 1364 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 1732 201K 291K 166960K 11958 0 file desc 18 65K 93K 166960K 151 0 proc 58 59K 108K 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 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 362 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 219 158K 167K 166960K 3018 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 94K 166960K 1229 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 11 0K 2K 166960K 27 0 temp 34 8638K 8702K 166960K 3929 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 38 0 34 1 0 1 1 0 8 0 rtentry 136 112 0 1 4 0 4 4 0 8 0 unpcb 144 36 0 20 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 12 0 8 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 70 0 61 2 0 2 2 0 8 1 nd6 112 24 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 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 11 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1570 0 62 95 0 95 95 0 8 0 ffsino 256 1570 0 62 95 0 95 95 0 8 0 nchpl 144 1781 0 88 63 0 63 63 0 8 0 vnodes 216 1657 0 0 93 0 93 93 0 8 0 namei 1024 5207 0 5207 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6094 0 5983 8 0 8 8 1 8 0 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 440 0 397 6 0 6 6 0 8 1 knotepl 120 3311 0 3264 2 0 2 2 0 8 0 kqueuepl 184 22 0 10 1 0 1 1 0 8 0 pipepl 304 114 0 86 3 0 3 3 0 8 0 fdescpl 448 427 0 397 5 0 5 5 0 8 1 filepl 120 1510 0 1291 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 94 0 78 1 0 1 1 0 8 0 ucredpl 104 88 0 75 1 0 1 1 0 8 0 zombiepl 144 397 0 397 1 0 1 1 0 8 1 processpl 1152 440 0 397 4 0 4 4 0 8 0 procpl 664 469 0 416 5 0 5 5 0 8 0 sockpl 552 145 0 116 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 2459 0 2408 15 0 15 15 0 8 8 mcl2k 2048 214 0 212 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4126 0 3975 10 0 10 10 0 8 0 bufpl 280 2674 0 118 183 0 183 183 0 8 0 anonpl 24 78191 0 73588 28 0 28 28 0 187 0 amapchunkpl 152 8008 0 7574 19 0 19 19 0 158 1 amappl16 200 1025 0 901 7 0 7 7 0 8 0 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 54 0 54 1 0 1 1 0 8 1 amappl13 176 404 0 403 1 0 1 1 0 8 0 amappl12 168 761 0 723 2 0 2 2 0 8 0 amappl11 160 75 0 75 1 0 1 1 0 8 1 amappl10 152 74 0 64 1 0 1 1 0 8 0 amappl9 144 253 0 253 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 80 0 79 1 0 1 1 0 8 0 amappl6 120 259 0 248 1 0 1 1 0 8 0 amappl5 112 71 0 64 1 0 1 1 0 8 0 amappl4 104 372 0 349 1 0 1 1 0 8 0 amappl3 96 1304 0 1226 3 0 3 3 0 8 0 amappl2 88 533 0 464 2 0 2 2 0 8 0 amappl1 80 8800 0 8256 13 0 13 13 0 8 1 amappl 88 2316 0 2167 4 0 4 4 0 92 0 uvmvnodes 80 1657 0 0 34 0 34 34 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 24 427 0 397 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 427 0 397 1 0 1 1 0 8 0 vmmpekpl 168 5149 0 5123 2 0 2 2 0 8 0 vmmpepl 168 34494 0 32606 83 0 83 83 0 357 0 vmsppl 368 426 0 397 4 0 4 4 0 8 1 rwobjpl 40 13820 0 11249 26 0 26 26 0 8 0 pdppl 4096 861 0 794 95 26 69 81 0 8 2 pvpl 32 195527 0 185744 79 0 79 79 0 265 0 pmappl 216 426 0 397 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 363 0 26 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940d40,0,ffff80003c940cb0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495800,ffff80003c940de8,ffff80003c940d40,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb7eb00,ffff800010fe17c0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fe17c0,fffffd807eb7eb00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fe17c0,0,ffff80003c940f98,0,0,80a) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94b4e0,3,ffff80003c941090,80a,ffff80003c941130) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94b4e0,ffff80003c9411e0,ffff80003c941130) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9411e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9411e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe038d0b8200, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000037058,1,fffffd8073814898) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940d40,0,ffff80003c940cb0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495800,ffff80003c940de8,ffff80003c940d40,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb7eb00,ffff800010fe17c0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fe17c0,fffffd807eb7eb00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fe17c0,0,ffff80003c940f98,0,0,80a) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94b4e0,3,ffff80003c941090,80a,ffff80003c941130) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94b4e0,ffff80003c9411e0,ffff80003c941130) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9411e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9411e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe038d0b8200, count: -10