uvm_fault(0xffffffff82dd6460, 0xb82d882c0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at softclock_process_kclock_timeout+0x3e: movq timeout_kclock(%r15),%r13 TID PID UID PRFLAGS PFLAGS CPU COMMAND softclock_process_kclock_timeout(fffffd8077b6ee88,0) at softclock_process_kclock_timeout+0x3e sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82c13ff0) at sched_idle+0x427 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xffffffff82dd6460, 0xb82d882c0, 0, 1) -> e ddb{0}> trace softclock_process_kclock_timeout(fffffd8077b6ee88,0) at softclock_process_kclock_timeout+0x3e sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82c13ff0) at sched_idle+0x427 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -6 ddb{0}> show registers rdi 0xfffffd8077b6ee88 rsi 0 rbp 0xffff80002116f4c0 rbx 0 rdx 0 rcx 0xffffffff82d80200 timeout_todo rax 0x40000000 r8 0x75 r9 0x75 r10 0x5446c38b235a6275 r11 0x1e40a988c2c41b8b r12 0x652d7a7973000000 r13 0xffffffff82df7e70 rdrand_tmo r14 0xfffffd8077b6ee88 r15 0xc00000000 rip 0xffffffff81eb7a1e softclock_process_kclock_timeout+0x3e cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80002116f470 ss 0x10 softclock_process_kclock_timeout+0x3e: movq timeout_kclock(%r15),%r13 ddb{0}> show proc PROC (idle0) pid=366724 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0x2a824cb70a0bbbd2, list=0xffff800021169878,0xffff800021169060 process=0xffff8000ffffe180 user=0xffff80002116a000, vmspace=0xffffffff82dd6460 estcpu=0, cpticks=78359, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13057 205253 88519 0 3 0x80 nanoslp syz-executor.0 13057 371389 88519 0 3 0x4000080 netio syz-executor.0 13057 158489 88519 0 3 0x4000080 fsleep syz-executor.0 32554 371227 16008 0 3 0x82 piperd syz-executor.7 88519 106796 16008 0 2 0x482 syz-executor.0 23580 329811 16008 0 3 0x82 piperd syz-executor.5 74975 172412 0 0 3 0x14280 nfsidl nfsio 20720 328456 0 0 3 0x14280 nfsidl nfsio 78049 348898 0 0 3 0x14280 nfsidl nfsio 55919 450074 0 0 3 0x14280 nfsidl nfsio 44567 493637 0 0 3 0x14280 nfsidl nfsio 43210 284478 0 0 3 0x14280 nfsidl nfsio 46379 429178 0 0 3 0x14280 nfsidl nfsio 45603 161063 0 0 3 0x14280 nfsidl nfsio 18931 284881 0 0 3 0x14280 nfsidl nfsio 27251 382859 0 0 3 0x14280 nfsidl nfsio 24468 117333 0 0 3 0x14280 nfsidl nfsio 27403 147491 0 0 3 0x14280 nfsidl nfsio 50692 22189 0 0 3 0x14280 nfsidl nfsio 4187 202151 0 0 3 0x14280 nfsidl nfsio 47872 159370 0 0 3 0x14280 nfsidl nfsio 50503 390181 0 0 3 0x14280 nfsidl nfsio 67385 314123 0 0 3 0x14280 nfsidl nfsio 59128 37571 0 0 3 0x14280 nfsidl nfsio 96723 36732 0 0 3 0x14280 nfsidl nfsio 12430 231746 0 0 3 0x14280 nfsidl nfsio 8645 69173 16008 0 3 0x82 piperd syz-executor.2 17363 486078 16008 0 3 0x82 piperd syz-executor.6 63112 517544 16008 0 3 0x82 piperd syz-executor.4 68413 282752 16008 0 3 0x82 piperd syz-executor.1 41989 185754 1 0 3 0x100083 ttyin getty 30289 35644 16008 0 3 0x82 piperd syz-executor.3 70437 46812 0 0 3 0x14200 bored sosplice 16008 92836 98369 0 3 0x82 wait syz-fuzzer 16008 292389 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 147839 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 83344 98369 0 3 0x4000082 wait syz-fuzzer 16008 282090 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 194195 98369 0 3 0x4000082 wait syz-fuzzer 16008 121729 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 164425 98369 0 3 0x4000082 wait syz-fuzzer 16008 265563 98369 0 3 0x4000082 wait syz-fuzzer 16008 181007 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 67779 98369 0 3 0x4000082 thrsleep syz-fuzzer 16008 491191 98369 0 3 0x4000082 kqread syz-fuzzer 16008 36172 98369 0 3 0x4000082 wait syz-fuzzer 16008 520287 98369 0 3 0x4000082 wait syz-fuzzer 16008 13894 98369 0 3 0x4000082 wait syz-fuzzer 16008 38693 98369 0 3 0x4000082 thrsleep syz-fuzzer 98369 254542 37923 0 3 0x10008a sigsusp ksh 37923 239335 88648 0 3 0x9a kqread sshd 88648 429220 1 0 3 0x88 kqread sshd 53884 282881 26675 74 3 0x1100092 bpf pflogd 26675 385283 1 0 3 0x80 netio pflogd 89424 55530 63240 73 3 0x1100090 kqread syslogd 63240 169817 1 0 3 0x100082 netio syslogd 28310 20106 1 0 3 0x100080 kqread resolvd 27074 75464 69269 77 3 0x100092 kqread dhcpleased 42674 482800 69269 77 3 0x100092 kqread dhcpleased 69269 189816 1 0 3 0x80 kqread dhcpleased 51937 79952 0 0 3 0x14200 bored smr 41324 116675 0 0 3 0x14200 pgzero zerothread 1888 99349 0 0 3 0x14200 aiodoned aiodoned 14912 314247 0 0 3 0x14200 syncer update 2104 375956 0 0 3 0x14200 cleaner cleaner 97528 94829 0 0 3 0x14200 reaper reaper 61028 702 0 0 3 0x14200 pgdaemon pagedaemon 65250 385144 0 0 3 0x14200 bored viomb 77395 383777 0 0 3 0x40014200 acpi0 acpi0 81284 76238 0 0 7 0x40014200 idle1 22860 479100 0 0 3 0x14200 bored softnet 13777 515674 0 0 3 0x14200 bored softnet 56383 60111 0 0 3 0x14200 bored softnet 47137 456135 0 0 3 0x14200 bored softnet 78904 62942 0 0 3 0x14200 bored systqmp 73799 387900 0 0 3 0x14200 bored systq 8485 450312 0 0 3 0x40014200 bored softclock *64957 366724 0 0 7 0x40014200 idle0 1 359307 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 6506K 7218K 78643K 46734 0 pcb 13 20K 22K 78643K 5402 0 rtable 204 17K 18K 78643K 5296 0 ifaddr 78 28K 31K 78643K 2065 0 sysctl 2 0K 2K 78643K 18 0 counters 56 35K 36K 78643K 1446 0 ioctlops 0 0K 4K 78643K 3266 0 iov 0 0K 32K 78643K 5660 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1692 106K 107K 78643K 18393 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 251 0 VM map 2 1K 1K 78643K 2 0 sem 18 17K 32K 78643K 3072 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 78K 78643K 27594 0 sigio 0 0K 0K 78643K 615 0 proc 71 91K 115K 78643K 4278 0 subproc 104 6K 10K 78643K 1522 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1468 0 in_multi 74 5K 7K 78643K 1723 0 ether_multi 1 0K 0K 78643K 196 0 mrt 1 0K 0K 78643K 121 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 1K 78643K 4355 0 pfkey data 0 0K 0K 78643K 16 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 471 103K 111K 78643K 258399 0 UVM aobj 131 4K 4K 78643K 140 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 972 0 NDP 14 0K 2K 78643K 717 0 temp 137 5858K 6882K 78643K 347316 0 kqueue 12 18K 26K 78643K 2169 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 2225 0 2222 32 31 1 6 0 8 0 rtentry 112 1714 0 1633 4 0 4 4 0 8 0 unpcb 144 75696 0 75673 355 349 6 13 0 8 4 syncache 296 204 0 204 22 22 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 302 0 302 23 23 0 1 0 8 0 tcpcb 776 11873 0 11869 359 351 8 17 0 8 7 arp 120 266 0 252 1 0 1 1 0 8 0 inpcb 368 30103 0 30096 484 477 7 16 0 8 6 nd6 136 354 0 335 1 0 1 1 0 8 0 pkpcb 40 224 0 224 14 13 1 1 0 8 1 kcovpl 48 105 0 97 1 0 1 1 0 8 0 mppekey 1024 18 0 18 5 5 0 1 0 8 0 ppxss 1256 388 0 388 41 40 1 1 0 8 1 pppxif 1456 72 0 72 16 15 1 1 0 8 1 pffrag 232 276 0 271 6 5 1 1 0 482 0 pffrnode 88 272 0 267 6 5 1 1 0 8 0 pffrent 40 1304 0 1299 6 5 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 1363 0 1284 1 0 1 1 0 8 0 pfstkey 128 1363 0 1284 10 7 3 6 0 8 0 pfstate 384 1363 0 1284 30 22 8 16 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 27 0 27 12 12 0 1 0 8 0 art_heap8 4096 8 0 7 5 3 2 3 0 8 1 art_heap4 256 7694 0 7354 68 43 25 31 0 8 0 art_table 32 7702 0 7361 5 1 4 4 0 8 0 art_node 16 1692 0 1621 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 10 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 3061 0 3045 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 38955 0 37426 97 0 97 97 0 8 0 ffsino 272 38955 0 37426 103 0 103 103 0 8 0 nchpl 144 80803 0 79142 64 0 64 64 0 8 0 rtmask 32 16 0 16 5 5 0 1 0 8 0 uvmvnodes 80 7980 0 0 163 0 163 163 0 8 0 vnodes 216 7980 0 0 444 0 444 444 0 8 0 namei 1024 275714 0 275714 13 12 1 2 0 8 1 percpumem 16 736 0 695 1 0 1 1 0 8 0 kstatmem 264 942 0 914 15 12 3 3 0 8 0 scsiplug 72 15 0 15 5 5 0 1 0 8 0 scxspl 216 232518 0 232518 43 42 1 8 0 8 1 plimitpl 152 2968 0 2952 1 0 1 1 0 8 0 sigapl 424 27765 0 27703 10 2 8 8 0 8 0 futexpl 64 287035 0 287034 9 8 1 1 0 8 0 knotepl 120 1770 0 0 17 3 14 17 0 8 0 kqueuepl 216 4928 0 4920 87 84 3 8 0 8 2 pipepl 320 7171 0 7143 172 169 3 13 0 8 0 fdescpl 496 27705 0 27681 7 3 4 5 0 8 0 filepl 152 235707 0 235457 432 417 15 24 0 8 3 lockfpl 104 9104 0 9102 21 20 1 3 0 8 0 lockfspl 48 2699 0 2697 1 0 1 1 0 8 0 sessionpl 144 126 0 109 1 0 1 1 0 8 0 pgrppl 48 263 0 246 1 0 1 1 0 8 0 ucredpl 104 23806 0 23788 1 0 1 1 0 8 0 zombiepl 144 27703 0 27703 6 5 1 1 0 8 1 processpl 1072 27765 0 27703 5 0 5 5 0 8 0 procpl 696 69854 0 69775 30 20 10 10 0 8 1 srpgc 96 146 0 146 32 31 1 1 0 8 1 sosppl 168 283 0 283 27 26 1 1 0 8 1 sockpl 488 108428 0 108395 2298 2278 20 46 0 8 15 mcl64k 65536 22 0 0 3 1 2 3 0 8 0 mcl16k 16384 18 0 0 3 0 3 3 0 8 0 mcl12k 12288 20 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 553 0 0 53 26 27 53 0 8 0 mtagpl 96 1249 0 0 13 0 13 13 0 8 0 mbufpl 256 9316 0 0 546 0 546 546 0 8 0 bufpl 288 46081 0 38100 571 0 571 571 0 8 0 anonpl 24 2597655 0 2580391 375 242 133 186 0 186 0 amapchunkpl 152 827224 0 826343 240 196 44 70 0 158 0 amappl16 200 43827 0 43258 205 171 34 44 0 8 2 amappl15 192 31 0 30 1 0 1 1 0 8 0 amappl14 184 472 0 452 10 8 2 2 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 29938 0 29906 3 1 2 2 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 136 0 123 1 0 1 1 0 8 0 amappl9 144 331 0 331 60 60 0 2 0 8 0 amappl8 136 1343 0 1113 9 1 8 8 0 8 0 amappl7 128 187 0 166 1 0 1 1 0 8 0 amappl6 120 1119 0 1083 4 2 2 2 0 8 0 amappl5 112 915 0 906 1 0 1 1 0 8 0 amappl4 104 2326 0 2279 3 1 2 3 0 8 0 amappl3 96 160013 0 159949 4 1 3 3 0 8 0 amappl2 88 28914 0 28840 3 1 2 3 0 8 0 amappl1 80 113746 0 113209 23 10 13 23 0 8 0 amappl 88 256002 0 255765 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 72 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 27705 0 27681 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 27705 0 27681 1 0 1 1 0 8 0 vmmpekpl 168 200007 0 199935 4 0 4 4 0 8 0 vmmpepl 168 1662870 0 1660376 579 423 156 158 0 357 4 vmsppl 456 27704 0 27681 5 1 4 5 0 8 0 rwobjpl 56 372560 0 362621 157 15 142 145 0 8 0 pdppl 4096 55417 0 55362 1501 1432 69 77 0 8 14 pvpl 32 7644279 0 7621339 875 649 226 343 0 265 5 pmappl 248 27704 0 27681 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3505 0 2041 42 0 42 42 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace softclock_process_kclock_timeout(fffffd8077b6ee88,0) at softclock_process_kclock_timeout+0x3e sys/kern/kern_timeout.c:652 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:717 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffffffff82c13ff0) at sched_idle+0x427 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d58ff0) at sched_idle+0x427 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d58ff0) at sched_idle+0x427 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -5