uvm_fault(0xffffffff82e54e28, 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 *207669 67416 0 0x14000 0x40000200 0 softclock rt_timer_timer(fffffd806179de58) at rt_timer_timer+0x4f sys/net/route.c:1697 timeout_run(fffffd806179de78) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57cd48) 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(0xffffffff82e54e28, 0x17, 0, 2) -> e ddb> trace rt_timer_timer(fffffd806179de58) at rt_timer_timer+0x4f sys/net/route.c:1697 timeout_run(fffffd806179de78) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57cd48) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3 ddb> show registers rdi 0x1 rsi 0x9 rbp 0xffff80002a589b90 rbx 0 rdx 0 rcx 0xffffffff82dc9d90 timeout_proc rax 0xffffffffffffffff r8 0xbb9 r9 0 r10 0x4c283e93099a1ce4 r11 0x8b5349171102d786 r12 0xffffffff82e43a30 ip_mtudisc_timeout_q r13 0xffffffff82cdcff0 cpu_info_full_primary+0x1ff0 r14 0xfffffd806179de58 r15 0xffffffffffffffff rip 0xffffffff819873bf rt_timer_timer+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a589b60 ss 0x10 rt_timer_timer+0x4f: movq %rax,0x18(%r15) ddb> show proc PROC (softclock) tid=207669 pid=67416 tcnt=1 stat=onproc flags process=14000 proc=40000200 runpri=50, usrpri=54, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a57d540,0xffff80002a57cab0 process=0xffff8000ffffdd50 user=0xffff80002a584000, vmspace=0xffffffff82e54e28 estcpu=4, cpticks=19, pctcpu=0.0, user=0, sys=19, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 63583 104467 11063 0 2 0 syz-executor.3 92877 476914 31706 0 2 0 syz-executor.0 92877 98362 31706 0 2 0x4000000 syz-executor.0 92877 480573 31706 0 2 0x4000000 syz-executor.0 92877 434911 31706 0 2 0x4000000 syz-executor.0 20190 459556 85211 0 2 0 syz-executor.1 20190 496711 85211 0 2 0x4000000 syz-executor.1 39848 194934 578 0 2 0 syz-executor.6 39848 9473 578 0 3 0x4000080 fsleep syz-executor.6 6268 389774 31319 0 2 0 syz-executor.2 6268 356033 31319 0 3 0x4000080 fsleep syz-executor.2 85999 491842 56840 0 2 0 syz-executor.4 85999 270384 56840 0 3 0x4000080 fsleep syz-executor.4 64599 461411 41977 0 2 0 syz-executor.5 64599 14818 41977 0 3 0x4000080 fsleep syz-executor.5 11063 314184 88232 0 2 0x2 syz-executor.3 85211 213943 88232 0 2 0x482 syz-executor.1 31706 405152 88232 0 2 0x482 syz-executor.0 41977 26367 88232 0 2 0x482 syz-executor.5 34061 65593 88232 0 2 0x2 syz-executor.7 56840 423410 88232 0 2 0x482 syz-executor.4 24647 317803 1 0 3 0x100083 ttyin getty 31319 388522 88232 0 2 0x482 syz-executor.2 578 278589 88232 0 2 0x482 syz-executor.6 80905 19907 0 0 3 0x14200 acct acct 50437 408396 8050 0 3 0x100082 netio ndp 8050 502653 1 0 3 0x10008a sigsusp sh 59728 359436 0 0 3 0x14200 bored sosplice 88232 96226 85491 0 3 0x2000082 wait syz-fuzzer 88232 235613 85491 0 3 0x6000082 nanoslp syz-fuzzer 88232 324382 85491 0 3 0x6000082 thrsleep syz-fuzzer 88232 322095 85491 0 3 0x6000082 wait syz-fuzzer 88232 72010 85491 0 3 0x6000082 wait syz-fuzzer 88232 148664 85491 0 3 0x6000082 thrsleep syz-fuzzer 88232 329717 85491 0 3 0x6000082 wait syz-fuzzer 88232 444436 85491 0 3 0x6000082 wait syz-fuzzer 88232 249235 85491 0 3 0x6000082 thrsleep syz-fuzzer 88232 355564 85491 0 3 0x6000082 wait syz-fuzzer 88232 239196 85491 0 3 0x6000082 thrsleep syz-fuzzer 88232 351866 85491 0 3 0x6000082 wait syz-fuzzer 88232 181380 85491 0 2 0x6000482 syz-fuzzer 88232 188123 85491 0 3 0x6000082 wait syz-fuzzer 85491 491264 36146 0 3 0x10008a sigsusp ksh 36146 268337 56867 0 3 0x9a kqread sshd 56867 217885 1 0 3 0x88 kqread sshd 4098 7169 45210 73 3 0x1100090 kqread syslogd 45210 49712 1 0 3 0x100082 netio syslogd 60245 444424 1 0 3 0x100080 kqread resolvd 65379 385620 44886 77 3 0x100092 kqread dhcpleased 90561 254266 44886 77 3 0x100092 kqread dhcpleased 44886 479321 1 0 3 0x80 kqread dhcpleased 27709 387702 0 0 3 0x14200 bored smr 20749 1667 0 0 2 0x14200 zerothread 71067 280915 0 0 3 0x14200 aiodoned aiodoned 47126 112858 0 0 2 0x14600 update 61360 310513 0 0 3 0x14200 cleaner cleaner 62101 342457 0 0 3 0x14200 reaper reaper 13727 94095 0 0 3 0x14200 pgdaemon pagedaemon 97998 188015 0 0 3 0x14200 bored viomb 85987 185973 0 0 3 0x40014200 acpi0 acpi0 46243 395927 0 0 3 0x14200 bored softnet3 30956 40134 0 0 3 0x14200 bored softnet2 96045 106164 0 0 3 0x14200 bored softnet1 97748 269595 0 0 3 0x14200 bored softnet0 32064 450623 0 0 3 0x14200 bored systqmp 90178 49682 0 0 3 0x14200 bored systq *67416 207669 0 0 7 0x40014200 softclock 77250 498860 0 0 3 0x40014200 idle0 1 375614 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 10221 6435K 10791K 166960K 50772 0 pcb 15 22K 24K 166960K 2065 0 rtable 224 14K 15K 166960K 8422 0 pf 34 9K 10K 166960K 1074 0 ifaddr 42 14K 15K 166960K 1182 0 ifgroup 59 2K 2K 166960K 1861 0 sysctl 4 1K 1K 166960K 16 0 counters 32 17K 18K 166960K 511 0 ioctlops 0 0K 2K 166960K 1629 0 iov 0 0K 32K 166960K 2137 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1678 105K 105K 166960K 26491 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 17K 166960K 302 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 150 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 19 69K 85K 166960K 27745 0 sigio 0 0K 0K 166960K 605 0 proc 61 59K 100K 166960K 7271 0 subproc 117 7K 7K 166960K 3045 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1906 0 in_multi 88 6K 7K 166960K 2633 0 ether_multi 1 0K 0K 166960K 27 0 mrt 1 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 295 1314K 1314K 166960K 295 0 exec 0 0K 1K 166960K 6156 0 pfkey data 0 0K 0K 166960K 11 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 557 1004K 1005K 166960K 246937 0 UVM aobj 131 4K 4K 166960K 134 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 551 0 NDP 13 0K 1K 166960K 932 0 temp 74 6764K 7152K 166960K 215186 0 kqueue 12 18K 28K 166960K 3290 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 1575 0 1571 5 2 3 3 0 8 2 rtentry 112 2912 0 2810 4 0 4 4 0 8 0 unpcb 144 24489 0 24474 30 21 9 11 0 8 8 syncache 336 258 0 258 4 3 1 1 0 8 1 sackhl 24 6 0 6 1 0 1 1 0 8 1 tcpqe 32 338 0 338 4 3 1 1 0 8 1 tcpcb 808 9761 0 9752 38 29 9 16 0 8 7 arp 88 547 0 531 1 0 1 1 0 8 0 ipq 40 21 0 21 2 1 1 1 0 8 1 ipqe 40 134 0 134 2 1 1 1 0 8 1 inpcb 360 23263 0 23250 55 46 9 16 0 8 7 ip6q 72 10 0 10 2 1 1 1 0 8 1 ip6af 40 10 0 10 2 1 1 1 0 8 1 nd6 104 680 0 656 1 0 1 1 0 8 0 pkpcb 40 115 0 115 2 1 1 1 0 8 1 kcovpl 48 234 0 225 1 0 1 1 0 8 0 ppxss 1072 98 0 98 3 2 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 4 0 3 3 1 2 3 0 8 1 art_heap4 256 10950 0 10508 111 81 30 30 0 8 2 art_table 32 10954 0 10511 4 0 4 4 0 8 0 art_node 16 2833 0 2740 1 0 1 1 0 8 0 sysvmsgpl 40 80 0 71 2 1 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 109 0 92 3 0 3 3 0 8 0 dino2pl 256 45257 0 43693 98 0 98 98 0 8 0 ffsino 240 45257 0 43693 93 0 93 93 0 8 0 nchpl 144 81908 0 80262 63 0 63 63 0 8 0 uvmvnodes 80 8315 0 0 170 0 170 170 0 8 0 vnodes 216 8315 0 0 462 0 462 462 0 8 0 namei 1024 297774 0 297774 8 6 2 3 0 8 2 vcpupl 2048 139 0 0 18 0 18 18 0 8 0 vmpool 664 171 0 32 12 0 12 12 0 8 0 kstatmem 264 984 0 958 3 0 3 3 0 8 0 scxspl 216 256191 0 256191 17 13 4 8 1 8 4 plimitpl 152 4735 0 4719 1 0 1 1 0 8 0 sigapl 424 27755 0 27707 10 2 8 8 0 8 1 futexpl 64 247137 0 247133 1 0 1 1 0 8 0 knotepl 120 246701 0 246619 25 14 11 17 0 8 7 kqueuepl 184 5857 0 5847 15 8 7 7 0 8 6 pipepl 288 6625 0 6594 18 8 10 11 0 8 7 fdescpl 432 27513 0 27483 4 0 4 4 0 8 0 filepl 120 204629 0 204368 35 19 16 20 0 8 5 lockfpl 104 8162 0 8160 4 2 2 2 0 8 1 lockfspl 48 2393 0 2391 1 0 1 1 0 8 0 sessionpl 144 253 0 236 1 0 1 1 0 8 0 pgrppl 48 596 0 579 1 0 1 1 0 8 0 ucredpl 104 54075 0 54062 1 0 1 1 0 8 0 zombiepl 144 27707 0 27707 2 1 1 1 0 8 1 processpl 1072 27755 0 27707 5 0 5 5 0 8 0 procpl 680 64140 0 64071 11 1 10 10 0 8 2 sosppl 168 271 0 271 3 2 1 1 0 8 1 sockpl 488 49571 0 49539 776 763 13 37 0 8 8 mcl64k 65536 905 0 905 4 3 1 1 0 8 1 mcl16k 16384 453 0 453 4 3 1 1 0 8 1 mcl12k 12288 850 0 850 4 3 1 1 0 8 1 mcl9k 9216 559 0 559 3 2 1 1 0 8 1 mcl8k 8192 1642 0 1642 4 3 1 1 0 8 1 mcl4k 4096 3380 0 3380 5 3 2 2 0 8 2 mcl2k2 2112 154 0 154 3 2 1 1 0 8 1 mcl2k 2048 128540 0 128475 56 42 14 32 0 8 4 mtagpl 96 4271 0 3972 18 7 11 14 0 8 3 mbufpl 256 446720 0 446296 1289 1254 35 556 0 8 6 bufpl 280 53192 0 44875 595 0 595 595 0 8 0 anonpl 24 2894745 0 2880089 170 50 120 153 0 188 13 amapchunkpl 152 787633 0 786791 80 28 52 59 0 158 12 amappl16 200 47038 0 46485 107 69 38 51 0 8 8 amappl15 192 107 0 107 3 2 1 1 0 8 1 amappl14 184 883 0 868 2 1 1 2 0 8 0 amappl13 176 111 0 111 3 2 1 1 0 8 1 amappl12 168 31423 0 31391 2 0 2 2 0 8 0 amappl11 160 145 0 133 1 0 1 1 0 8 0 amappl10 152 437 0 423 1 0 1 1 0 8 0 amappl9 144 418 0 418 1 0 1 1 0 8 1 amappl8 136 1402 0 1277 5 0 5 5 0 8 0 amappl7 128 869 0 844 2 0 2 2 0 8 0 amappl6 120 3829 0 3809 1 0 1 1 0 8 0 amappl5 112 729 0 721 1 0 1 1 0 8 0 amappl4 104 2083 0 2052 2 1 1 2 0 8 0 amappl3 96 149929 0 149832 4 0 4 4 0 8 0 amappl2 88 29871 0 29787 3 1 2 3 0 8 0 amappl1 80 125339 0 124805 23 10 13 22 0 8 1 amappl 88 242486 0 242193 8 0 8 8 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 27684 0 27515 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 27684 0 27515 2 0 2 2 0 8 0 vmmpekpl 168 195217 0 195130 5 0 5 5 0 8 0 vmmpepl 168 1756907 0 1754212 220 69 151 151 0 357 12 vmsppl 352 27683 0 27515 16 0 16 16 0 8 0 rwobjpl 24 374640 0 364451 63 1 62 62 0 8 0 pdppl 4096 55374 0 55169 1832 1627 205 209 0 8 0 pvpl 32 8549535 0 8528764 517 274 243 337 0 265 40 pmappl 216 27683 0 27515 10 0 10 10 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3602 0 3066 29 5 24 29 0 8 7 ddb> machine ddbcpu 0 No such command ddb> trace rt_timer_timer(fffffd806179de58) at rt_timer_timer+0x4f sys/net/route.c:1697 timeout_run(fffffd806179de78) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57cd48) 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(fffffd806179de58) at rt_timer_timer+0x4f sys/net/route.c:1697 timeout_run(fffffd806179de78) at timeout_run+0x8f sys/kern/kern_timeout.c:666 softclock_thread(ffff80002a57cd48) at softclock_thread+0xc4 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3