uvm_fault(0xffffffff82c0a9b0, 0x1648518b30, 0, 1) -> e kernel: page fault trap, code=0 Stopped at softclock_process_kclock_timeout+0x3a: movq timeout_kclock(%r15),%r13 TID PID UID PRFLAGS PFLAGS CPU COMMAND softclock_process_kclock_timeout(fffffd805a0a6e00,0) at softclock_process_kclock_timeout+0x3a sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x2ee sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82b9dff0) at sched_idle+0x2ea sys/kern/kern_sched.c:175 end trace frame: 0x0, count: 9 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(0xffffffff82c0a9b0, 0x1648518b30, 0, 1) -> e ddb> trace softclock_process_kclock_timeout(fffffd805a0a6e00,0) at softclock_process_kclock_timeout+0x3a sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x2ee sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82b9dff0) at sched_idle+0x2ea sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -6 ddb> show registers rdi 0xfffffd805a0a6e00 rsi 0 rbp 0xffff8000215fe790 rbx 0 rdx 0 rcx 0xffffffff82c10a70 timeout_todo rax 0x79730000 r8 0 r9 0 r10 0xbfef1cb69a5e0c6e r11 0x47da18d8a8c8d692 r12 0x10000 __ALIGN_SIZE+0xf000 r13 0xffffffff82c75da0 rdrand_tmo r14 0xfffffd805a0a6e00 r15 0x16c5900000 rip 0xffffffff81ad8ada softclock_process_kclock_timeout+0x3a cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000215fe740 ss 0x10 softclock_process_kclock_timeout+0x3a: movq timeout_kclock(%r15),%r13 ddb> show proc PROC (idle0) pid=419411 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x651d4a8e364ba0d4, list=0xffff8000fffff878,0xffff8000fffff060 process=0xffff8000ffffcfc0 user=0xffff8000215f9000, vmspace=0xffffffff82c0a9b0 estcpu=0, cpticks=63239, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 17262 439251 71005 0 3 0x82 piperd syz-executor.2 89237 119344 71005 0 3 0x82 piperd syz-executor.7 36674 405152 71005 0 3 0x82 wait syz-executor.6 7795 280984 71005 0 3 0x82 piperd syz-executor.0 28939 134729 71005 0 3 0x82 piperd syz-executor.5 27956 66460 71005 0 3 0x82 piperd syz-executor.4 8655 213902 0 0 3 0x14200 acct acct 71158 248263 71005 0 3 0x82 piperd syz-executor.3 3404 220207 0 0 3 0x14280 nfsidl nfsio 6456 62162 0 0 3 0x14280 nfsidl nfsio 48013 401022 0 0 3 0x14280 nfsidl nfsio 5239 235143 0 0 3 0x14280 nfsidl nfsio 37637 345281 0 0 3 0x14280 nfsidl nfsio 14986 46831 0 0 3 0x14280 nfsidl nfsio 13305 356055 0 0 3 0x14280 nfsidl nfsio 75755 271462 0 0 3 0x14280 nfsidl nfsio 41765 287419 0 0 3 0x14280 nfsidl nfsio 61207 128741 0 0 3 0x14280 nfsidl nfsio 49001 284968 0 0 3 0x14280 nfsidl nfsio 92701 274126 0 0 3 0x14280 nfsidl nfsio 10407 83130 0 0 3 0x14280 nfsidl nfsio 61940 82801 0 0 3 0x14280 nfsidl nfsio 97940 75462 0 0 3 0x14280 nfsidl nfsio 98471 210377 0 0 3 0x14280 nfsidl nfsio 62446 22942 0 0 3 0x14280 nfsidl nfsio 78641 79933 0 0 3 0x14280 nfsidl nfsio 32075 77235 0 0 3 0x14280 nfsidl nfsio 92880 95592 0 0 3 0x14280 nfsidl nfsio 67888 33223 71005 0 3 0x82 piperd syz-executor.1 63159 165641 0 0 3 0x14200 bored sosplice 71005 272521 64215 0 3 0x82 thrsleep syz-fuzzer 71005 381420 64215 0 3 0x4000082 thrsleep syz-fuzzer 71005 421535 64215 0 3 0x4000082 wait syz-fuzzer 71005 471573 64215 0 3 0x4000082 wait syz-fuzzer 71005 523796 64215 0 3 0x4000082 wait syz-fuzzer 71005 21540 64215 0 3 0x4000082 wait syz-fuzzer 71005 331234 64215 0 3 0x4000082 wait syz-fuzzer 71005 365749 64215 0 3 0x4000082 thrsleep syz-fuzzer 71005 310888 64215 0 3 0x4000082 thrsleep syz-fuzzer 71005 304486 64215 0 3 0x4000082 thrsleep syz-fuzzer 71005 330097 64215 0 3 0x4000082 wait syz-fuzzer 71005 481870 64215 0 3 0x4000082 kqread syz-fuzzer 71005 311057 64215 0 3 0x4000082 wait syz-fuzzer 71005 230058 64215 0 3 0x4000082 wait syz-fuzzer 64215 274539 90301 0 3 0x10008a sigsusp ksh 90301 27298 50578 0 3 0x9a kqread sshd 49748 338674 1 0 3 0x100083 ttyin getty 50578 443197 1 0 3 0x88 kqread sshd 61532 382470 88366 73 3 0x1100090 kqread syslogd 88366 148581 1 0 3 0x100082 netio syslogd 2421 337458 1 0 3 0x100080 kqread resolvd 24948 14927 45743 77 3 0x100092 kqread dhcpleased 36797 5863 45743 77 3 0x100092 kqread dhcpleased 45743 87392 1 0 3 0x80 kqread dhcpleased 40838 89874 0 0 3 0x14200 bored smr 54537 385915 0 0 3 0x14200 pgzero zerothread 69281 226830 0 0 3 0x14200 aiodoned aiodoned 58609 398212 0 0 3 0x14200 syncer update 78674 27527 0 0 3 0x14200 cleaner cleaner 65811 183815 0 0 3 0x14200 reaper reaper 96881 284351 0 0 3 0x14200 pgdaemon pagedaemon 99527 299711 0 0 3 0x14200 bored viomb 55103 357805 0 0 3 0x40014200 acpi0 acpi0 64663 328991 0 0 3 0x14200 bored softnet 88725 407177 0 0 3 0x14200 bored softnet 28116 160883 0 0 3 0x14200 bored softnet 55197 266725 0 0 3 0x14200 bored softnet 69629 502610 0 0 3 0x14200 bored systqmp 72182 285113 0 0 3 0x14200 bored systq 58971 503 0 0 3 0x40014200 bored softclock *87482 419411 0 0 7 0x40014200 idle0 1 148496 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 10214 6417K 7404K 78643K 87260 0 pcb 13 18K 22K 78643K 8813 0 rtable 142 14K 16K 78643K 3613 0 ifaddr 79 24K 27K 78643K 1011 0 sysctl 2 0K 0K 78643K 2 0 counters 25 17K 17K 78643K 297 0 ioctlops 0 0K 4K 78643K 1165 0 iov 0 0K 17K 78643K 1823 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1585 99K 99K 78643K 28477 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 84 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2848 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 81K 78643K 16257 0 sigio 0 0K 0K 78643K 831 0 proc 60 59K 75K 78643K 2717 0 subproc 104 6K 6K 78643K 1014 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 294 0 in_multi 62 4K 7K 78643K 1108 0 ether_multi 1 0K 0K 78643K 53 0 mrt 1 0K 0K 78643K 37 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 217 970K 970K 78643K 217 0 exec 0 0K 1K 78643K 2286 0 pfkey data 0 0K 0K 78643K 7 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 320 97K 114K 78643K 102518 0 UVM aobj 81 3K 3K 78643K 87 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 320 0 NDP 10 0K 1K 78643K 344 0 temp 120 5770K 71434K 78643K 173380 0 kqueue 12 18K 26K 78643K 698 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 952 0 949 13 12 1 3 0 8 0 rtentry 112 1069 0 1013 4 0 4 4 0 8 0 unpcb 144 13491 0 13478 155 153 2 10 0 8 1 syncache 296 43 0 43 13 13 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 263 0 263 6 6 0 1 0 8 0 tcpcb 776 5097 0 5093 181 177 4 14 0 8 3 arp 88 168 0 158 1 0 1 1 0 8 0 ipq 40 3 0 3 2 2 0 1 0 8 0 ipqe 40 7 0 7 2 2 0 1 0 8 0 inpcb 336 19756 0 19749 253 249 4 17 0 8 3 nd6 48 256 0 244 1 0 1 1 0 8 0 pkpcb 40 18 0 18 4 4 0 1 0 8 0 kcovpl 48 78 0 70 1 0 1 1 0 8 0 mppekey 1024 13 0 13 5 5 0 1 0 8 0 ppxss 1160 143 0 143 19 19 0 1 0 8 0 pppxif 1360 34 0 34 9 9 0 1 0 8 0 pfstscr 40 140 0 122 1 0 1 1 0 8 0 pfanchor 1280 1076 174 564 46 3 43 43 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 112 0 82 1 0 1 1 0 8 0 pfstkey 128 274 0 181 4 0 4 4 0 8 0 pfstate 352 137 0 122 5 3 2 2 0 8 0 rttmr 136 13 0 13 4 4 0 1 0 8 0 art_heap8 4096 10 0 9 8 7 1 3 0 8 0 art_heap4 256 4698 0 4407 56 33 23 30 0 8 0 art_table 32 4708 0 4416 4 1 3 4 0 8 0 art_node 16 1062 0 1014 1 0 1 1 0 8 0 sysvmsgpl 40 118 0 96 1 0 1 1 0 8 0 semapl 112 2846 0 2836 1 0 1 1 0 8 0 shmpl 112 84 0 6 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 20844 0 19393 94 2 92 92 0 8 0 ffsino 240 20844 0 19393 88 2 86 87 0 8 0 nchpl 144 41379 0 39748 63 1 62 63 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 156010 0 156010 9 8 1 3 0 8 1 vmpool 664 106 0 106 9 9 0 1 0 8 0 kstatmem 264 352 0 332 3 1 2 3 0 8 0 scsiplug 72 7 0 7 2 2 0 1 0 8 0 scxspl 216 121733 0 121733 30 29 1 8 0 8 1 plimitpl 152 1285 0 1270 1 0 1 1 0 8 0 sigapl 424 16432 0 16372 8 0 8 8 0 8 0 futexpl 64 172469 0 172469 7 6 1 1 0 8 1 knotepl 120 158410 0 158329 47 42 5 11 0 8 0 kqueuepl 184 1925 0 1917 32 31 1 6 0 8 0 pipepl 288 4822 0 4794 104 101 3 7 0 8 0 fdescpl 432 16393 0 16371 4 0 4 4 0 8 0 filepl 120 126165 0 125930 173 163 10 18 0 8 0 lockfpl 104 7219 0 7217 8 7 1 2 0 8 0 lockfspl 48 3137 0 3135 1 0 1 1 0 8 0 sessionpl 144 93 0 77 1 0 1 1 0 8 0 pgrppl 48 167 0 151 1 0 1 1 0 8 0 ucredpl 104 12022 0 12012 1 0 1 1 0 8 0 zombiepl 144 16373 0 16372 4 3 1 1 0 8 0 processpl 1008 16432 0 16372 13 4 9 9 0 8 0 procpl 696 39167 0 39094 32 23 9 10 0 8 0 sosppl 168 111 0 111 18 18 0 1 0 8 0 sockpl 456 34261 0 34235 786 777 9 34 0 8 4 mcl64k 65536 437 0 437 40 40 0 1 0 8 0 mcl16k 16384 205 0 205 36 36 0 1 0 8 0 mcl12k 12288 360 0 360 35 35 0 1 0 8 0 mcl9k 9216 148 0 148 30 30 0 1 0 8 0 mcl8k 8192 696 0 696 34 33 1 1 0 8 1 mcl4k 4096 1468 0 1468 21 20 1 1 0 8 1 mcl2k2 2112 89 0 89 36 36 0 1 0 8 0 mcl2k 2048 105414 0 105345 69 59 10 31 0 8 0 mtagpl 96 6388 0 6032 42 22 20 24 0 8 0 mbufpl 256 294473 0 293920 727 660 67 328 0 8 1 bufpl 288 26937 0 20543 458 0 458 458 0 8 0 anonpl 24 3076309 0 3061209 223 106 117 138 0 188 0 amapchunkpl 152 290268 0 289613 106 74 32 43 0 158 0 amappl16 200 27258 0 26645 114 80 34 46 0 8 0 amappl15 192 28 0 26 1 0 1 1 0 8 0 amappl14 184 440 0 429 2 1 1 2 0 8 0 amappl13 176 30 0 28 1 0 1 1 0 8 0 amappl12 168 1265 0 1262 1 0 1 1 0 8 0 amappl11 160 63 0 52 1 0 1 1 0 8 0 amappl10 152 114 0 106 1 0 1 1 0 8 0 amappl9 144 1076 0 1076 11 11 0 1 0 8 0 amappl8 136 728 0 628 4 0 4 4 0 8 0 amappl7 128 318 0 292 2 0 2 2 0 8 0 amappl6 120 518 0 503 2 1 1 2 0 8 0 amappl5 112 552 0 544 1 0 1 1 0 8 0 amappl4 104 1521 0 1491 2 1 1 2 0 8 0 amappl3 96 45103 0 45061 2 0 2 2 0 8 0 amappl2 88 17530 0 17459 3 0 3 3 0 8 0 amappl1 80 360442 0 359815 41 25 16 26 0 8 0 amappl 88 101025 0 100860 5 0 5 5 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 86 0 6 2 0 2 2 0 8 0 uaddrrnd 24 16499 0 16477 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 16499 0 16477 1 0 1 1 0 8 0 vmmpekpl 168 121628 0 121574 3 0 3 3 0 8 0 vmmpepl 168 1484476 0 1482057 408 262 146 160 0 357 5 vmsppl 344 16498 0 16477 3 0 3 3 0 8 0 rwobjpl 24 370763 0 363073 52 3 49 49 0 8 0 pdppl 4096 33004 0 32954 985 921 64 72 0 8 14 pvpl 32 6125200 0 6104965 562 360 202 333 0 265 0 pmappl 216 16498 0 16477 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3002 0 2187 31 4 27 31 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace softclock_process_kclock_timeout(fffffd805a0a6e00,0) at softclock_process_kclock_timeout+0x3a sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x2ee sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82b9dff0) at sched_idle+0x2ea sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace softclock_process_kclock_timeout(fffffd805a0a6e00,0) at softclock_process_kclock_timeout+0x3a sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x2ee sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82b9dff0) at sched_idle+0x2ea sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -6