uvm_fault(0xffffffff82d9edf8, 0x17, 0, 2) -> e kernel: page fault trap, code=2 Stopped at rt_timer_timer+0x4f: movq %rax,0x18(%r15) TID PID UID PRFLAGS PFLAGS CPU COMMAND * 78082 24724 0 0x14000 0x40000200 0 softclock rt_timer_timer(fffffd805e349dd0) at rt_timer_timer+0x4f sys/net/route.c:1657 timeout_run(fffffd805e349df0) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57d7e8) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: 12 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(0xffffffff82d9edf8, 0x17, 0, 2) -> e ddb> trace rt_timer_timer(fffffd805e349dd0) at rt_timer_timer+0x4f sys/net/route.c:1657 timeout_run(fffffd805e349df0) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57d7e8) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3 ddb> show registers rdi 0x1 rsi 0x9 rbp 0xffff80002a589230 rbx 0 rdx 0 rcx 0xffffffff82d6ec40 timeout_proc rax 0xffffffffffffffff r8 0 r9 0 r10 0x8f7d478bd97c62ac r11 0x785139be992da4c8 r12 0xffffffff82d853d0 ip_mtudisc_timeout_q r13 0xffffffff82d02ff0 cpu_info_full_primary+0x1ff0 r14 0xfffffd805e349dd0 r15 0xffffffffffffffff rip 0xffffffff815481cf rt_timer_timer+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a589200 ss 0x10 rt_timer_timer+0x4f: movq %rax,0x18(%r15) ddb> show proc PROC (softclock) tid=78082 pid=24724 tcnt=1 stat=onproc flags process=14000 proc=40000200 runpri=0, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a57da90,0xffff80002a57c808 process=0xffff8000ffffe9e0 user=0xffff80002a584000, vmspace=0xffffffff82d9edf8 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 27483 95514 65291 0 3 0x82 piperd syz-executor.0 64280 55615 65291 0 3 0x82 piperd syz-executor.1 13266 126887 65291 0 3 0x82 piperd syz-executor.5 84307 174042 65291 0 3 0x82 piperd syz-executor.7 51960 74236 65291 0 3 0x82 piperd syz-executor.4 27386 164345 65291 0 2 0x482 syz-executor.3 8470 43525 1 0 3 0x100083 ttyopn getty 84870 410529 65291 0 3 0x82 piperd syz-executor.6 38242 259157 65291 0 3 0x82 piperd syz-executor.2 12683 396970 0 0 3 0x14200 acct acct 9425 42260 0 0 3 0x14200 bored sosplice 65291 515039 70466 0 3 0x2000082 wait syz-fuzzer 65291 36784 70466 0 3 0x6000082 thrsleep syz-fuzzer 65291 316922 70466 0 3 0x6000082 wait syz-fuzzer 65291 14694 70466 0 3 0x6000082 thrsleep syz-fuzzer 65291 35100 70466 0 3 0x6000082 thrsleep syz-fuzzer 65291 381826 70466 0 3 0x6000082 thrsleep syz-fuzzer 65291 229542 70466 0 3 0x6000082 wait syz-fuzzer 65291 351256 70466 0 3 0x6000082 wait syz-fuzzer 65291 415826 70466 0 3 0x6000082 wait syz-fuzzer 65291 454636 70466 0 3 0x6000082 wait syz-fuzzer 65291 484668 70466 0 3 0x6000082 thrsleep syz-fuzzer 65291 409360 70466 0 3 0x6000082 wait syz-fuzzer 65291 11465 70466 0 3 0x6000082 wait syz-fuzzer 65291 211921 70466 0 3 0x6000082 kqread syz-fuzzer 65291 328747 70466 0 3 0x6000082 thrsleep syz-fuzzer 70466 489324 76460 0 3 0x10008a sigsusp ksh 76460 29176 2715 0 3 0x9a kqread sshd 2715 106043 1 0 3 0x88 kqread sshd 24359 150295 62707 73 3 0x1100090 kqread syslogd 62707 510570 1 0 3 0x100082 netio syslogd 65048 51730 1 0 3 0x100080 kqread resolvd 97137 467711 77504 77 3 0x100092 kqread dhcpleased 38126 336472 77504 77 3 0x100092 kqread dhcpleased 77504 365473 1 0 3 0x80 kqread dhcpleased 82420 426820 0 0 3 0x14200 bored smr 85464 304287 0 0 3 0x14200 pgzero zerothread 47002 283266 0 0 3 0x14200 aiodoned aiodoned 94538 17934 0 0 3 0x14200 syncer update 4771 520646 0 0 3 0x14200 cleaner cleaner 18743 444701 0 0 3 0x14200 reaper reaper 91792 248505 0 0 3 0x14200 pgdaemon pagedaemon 9077 101575 0 0 3 0x14200 bored viomb 44945 265364 0 0 3 0x40014200 acpi0 acpi0 74369 291345 0 0 3 0x14200 bored softnet3 32903 486365 0 0 3 0x14200 bored softnet2 15099 130816 0 0 3 0x14200 bored softnet1 14686 361124 0 0 3 0x14200 bored softnet0 15538 343318 0 0 3 0x14200 bored systqmp 98171 149759 0 0 3 0x14200 bored systq *24724 78082 0 0 7 0x40014200 softclock 66319 14480 0 0 3 0x40014200 idle0 1 34050 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 10181 6417K 7178K 166960K 26251 0 pcb 15 22K 24K 166960K 630 0 rtable 200 14K 15K 166960K 2907 0 pf 30 9K 10K 166960K 374 0 ifaddr 37 11K 14K 166960K 410 0 ifgroup 51 2K 2K 166960K 623 0 sysctl 3 0K 1K 166960K 8 0 counters 30 17K 18K 166960K 200 0 ioctlops 0 0K 2K 166960K 505 0 iov 0 0K 17K 166960K 1019 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1567 98K 98K 166960K 6271 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 98 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 2435 0 dirhash 12 2K 2K 166960K 81 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 37K 77K 166960K 9754 0 sigio 0 0K 0K 166960K 440 0 proc 58 59K 75K 166960K 2550 0 subproc 104 6K 6K 166960K 911 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 5518 0 in_multi 77 5K 7K 166960K 894 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 121 546K 546K 166960K 121 0 exec 0 0K 1K 166960K 2203 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 411 458K 463K 166960K 88890 0 UVM aobj 131 4K 5K 166960K 145 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 215 0 NDP 11 0K 2K 166960K 320 0 temp 81 6764K 6892K 166960K 131324 0 kqueue 12 18K 28K 166960K 679 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 120 618 0 615 5 2 3 3 0 8 2 rtentry 112 902 0 812 4 0 4 4 0 8 0 unpcb 144 11511 0 11498 17 8 9 13 0 8 8 syncache 336 91 0 91 2 1 1 1 0 8 1 tcpqe 32 162 0 162 2 1 1 1 0 8 1 tcpcb 808 4141 0 4126 23 13 10 16 0 8 8 arp 88 163 0 149 1 0 1 1 0 8 0 ipq 40 114 0 114 1 0 1 1 0 8 1 ipqe 40 347 0 347 1 0 1 1 0 8 1 inpcb 360 9180 0 9162 35 24 11 15 0 8 8 nd6 104 213 0 193 1 0 1 1 0 8 0 pkpcb 40 86 0 86 2 1 1 1 0 8 1 kcovpl 48 69 0 61 1 0 1 1 0 8 0 ppxss 1072 56 0 56 2 1 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3414 0 3034 49 19 30 30 0 8 5 art_table 32 3415 0 3034 4 0 4 4 0 8 0 art_node 16 856 0 774 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 18 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 2430 0 2420 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 63 0 46 3 0 3 3 0 8 0 dino2pl 256 13358 0 11863 94 0 94 94 0 8 0 ffsino 240 13358 0 11863 89 0 89 89 0 8 0 nchpl 144 27991 0 26349 63 0 63 63 0 8 0 uvmvnodes 80 6128 0 0 126 0 126 126 0 8 0 vnodes 216 6128 0 0 341 0 341 341 0 8 0 namei 1024 93938 0 93938 4 2 2 3 0 8 2 vcpupl 2048 63 0 0 8 0 8 8 0 8 0 vmpool 664 132 0 69 6 0 6 6 0 8 0 kstatmem 264 362 0 340 3 0 3 3 0 8 1 scxspl 216 88018 0 88018 11 7 4 8 1 8 4 plimitpl 152 906 0 890 1 0 1 1 0 8 0 sigapl 424 10092 0 10052 8 0 8 8 0 8 2 futexpl 64 102818 0 102818 1 0 1 1 0 8 1 knotepl 120 82970 0 82888 11 0 11 11 0 8 8 kqueuepl 184 1329 0 1321 7 3 4 4 0 8 3 pipepl 288 1890 0 1862 11 4 7 7 0 8 4 fdescpl 432 9911 0 9889 4 0 4 4 0 8 0 filepl 120 62719 0 62483 31 14 17 18 0 8 8 lockfpl 104 2460 0 2458 4 0 4 4 0 8 3 lockfspl 48 826 0 824 2 0 2 2 0 8 1 sessionpl 144 90 0 74 1 0 1 1 0 8 0 pgrppl 48 252 0 236 1 0 1 1 0 8 0 ucredpl 104 9018 0 9006 1 0 1 1 0 8 0 zombiepl 144 10053 0 10052 2 1 1 1 0 8 0 processpl 1072 10092 0 10052 5 0 5 5 0 8 0 procpl 680 23406 0 23352 10 1 9 9 0 8 2 sosppl 168 139 0 139 1 0 1 1 0 8 1 sockpl 488 21422 0 21388 322 308 14 45 0 8 8 mcl64k 65536 354 0 354 2 1 1 1 0 8 1 mcl16k 16384 184 0 184 2 1 1 1 0 8 1 mcl12k 12288 322 0 322 2 1 1 1 0 8 1 mcl9k 9216 141 0 141 2 1 1 1 0 8 1 mcl8k 8192 627 0 627 2 1 1 1 0 8 1 mcl4k 4096 1712 0 1712 3 1 2 2 0 8 2 mcl2k2 2112 60 0 60 2 1 1 1 0 8 1 mcl2k 2048 97160 0 97086 40 27 13 33 0 8 1 mtagpl 96 1085 0 1004 10 2 8 8 0 8 4 mbufpl 256 276636 0 276448 334 305 29 110 0 8 5 bufpl 280 21147 0 14754 457 0 457 457 0 8 0 anonpl 24 1136372 0 1124043 170 20 150 150 0 188 41 amapchunkpl 152 282962 0 282215 67 3 64 64 0 158 24 amappl16 200 24958 0 24504 77 43 34 39 0 8 8 amappl15 192 25 0 24 1 0 1 1 0 8 0 amappl14 184 344 0 332 2 1 1 2 0 8 0 amappl13 176 25 0 25 2 1 1 1 0 8 1 amappl12 168 11460 0 11438 2 0 2 2 0 8 0 amappl11 160 64 0 53 1 0 1 1 0 8 0 amappl10 152 94 0 85 1 0 1 1 0 8 0 amappl9 144 230 0 230 1 0 1 1 0 8 1 amappl8 136 518 0 434 4 0 4 4 0 8 0 amappl7 128 315 0 289 2 0 2 2 0 8 0 amappl6 120 1272 0 1256 1 0 1 1 0 8 0 amappl5 112 272 0 264 1 0 1 1 0 8 0 amappl4 104 872 0 845 2 1 1 2 0 8 0 amappl3 96 55236 0 55171 3 0 3 3 0 8 0 amappl2 88 10906 0 10836 3 1 2 3 0 8 0 amappl1 80 48300 0 47812 22 9 13 22 0 8 0 amappl 88 87698 0 87475 7 0 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 144 0 14 3 0 3 3 0 8 0 uaddrrnd 24 10043 0 9958 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10043 0 9958 1 0 1 1 0 8 0 vmmpekpl 168 74640 0 74571 4 0 4 4 0 8 0 vmmpepl 168 622159 0 620082 153 20 133 133 0 357 14 vmsppl 352 10042 0 9958 9 0 9 9 0 8 0 rwobjpl 24 151636 0 143902 49 0 49 49 0 8 1 pdppl 4096 20092 0 19979 597 470 127 131 0 8 14 pvpl 32 2949341 0 2931727 437 165 272 335 0 265 86 pmappl 216 10042 0 9958 6 0 6 6 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1277 0 848 14 0 14 14 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace rt_timer_timer(fffffd805e349dd0) at rt_timer_timer+0x4f sys/net/route.c:1657 timeout_run(fffffd805e349df0) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57d7e8) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3 ddb> machine ddbcpu 1 No such command ddb> trace rt_timer_timer(fffffd805e349dd0) at rt_timer_timer+0x4f sys/net/route.c:1657 timeout_run(fffffd805e349df0) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57d7e8) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3