uvm_fault(0xffffffff83a14f68, 0xffff800029ef5000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pvclock_get+0x53: movl 0(%r15),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND pvclock_get(ffffffff8385a990) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8385a990) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff8000338cd400) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 sys/kern/kern_tc.c:217 tuagg_add_runtime() at tuagg_add_runtime+0x40 sys/kern/kern_resource.c:449 mi_switch() at mi_switch+0xb1 sys/kern/sched_bsd.c:372 ast(ffff8000338cd4d0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff8000338cd4d0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x2c25c931be0, 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(0xffffffff83a14f68, 0xffff800029ef5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff8385a990) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8385a990) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff8000338cd400) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 sys/kern/kern_tc.c:217 tuagg_add_runtime() at tuagg_add_runtime+0x40 sys/kern/kern_resource.c:449 mi_switch() at mi_switch+0xb1 sys/kern/sched_bsd.c:372 ast(ffff8000338cd4d0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff8000338cd4d0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x2c25c931be0, count: -6 ddb> show registers rdi 0xffff80002acb4000 rsi 0x50596 acpi_pdirpa+0x3c407 rbp 0xffff8000338cd380 rbx 0xffffffff83921a58 th1 rdx 0xffff80002acb4000 rcx 0x50595 acpi_pdirpa+0x3c406 rax 0xc r8 0 r9 0x201 r10 0x3e663811a3036a5a r11 0x7c6ac5efad85a477 r12 0 r13 0x107c __ALIGN_SIZE+0x7c r14 0xffffffff8385a990 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff81898943 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000338cd330 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=488665 pid=86778 tcnt=2 stat=run flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0x0, list=0xffff80002f0c0d28,0xffffffff839603f0 process=0xffff8000ffff9f98 user=0xffff8000338c8000, vmspace=0xfffffd806cb2d180 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 86778 383382 31523 0 2 0 syz-executor *86778 488665 31523 0 2 0x4000000 syz-executor 97260 90893 36214 0 2 0 syz-executor 97260 245305 36214 0 3 0x4000080 fsleep syz-executor 67366 38038 86379 0 2 0x10 syz-executor 67366 127862 86379 0 3 0x4000090 fsleep syz-executor 49482 234501 54091 0 2 0 syz-executor 49482 325150 54091 0 3 0x4000080 fsleep syz-executor 41796 380327 0 0 3 0x14200 acct acct 58330 270564 32986 0 3 0x82 nanoslp syz-executor 29926 290253 32986 0 3 0x82 nanoslp syz-executor 54091 505753 32986 0 2 0xc82 syz-executor 86379 209862 32986 0 3 0x82 nanoslp syz-executor 36214 383454 32986 0 2 0xc82 syz-executor 44616 221608 32986 0 2 0x2 syz-executor 31523 37248 32986 0 3 0x82 nanoslp syz-executor 28781 42062 32986 0 2 0x2 syz-executor 32986 293063 54779 0 3 0x82 kqread syz-executor 54779 132656 97603 0 3 0x10008a sigsusp ksh 97603 39525 72430 0 3 0x98 kqread sshd-session 72430 250686 29481 0 3 0x92 kqread sshd-session 87990 266158 1 0 3 0x100083 ttyin getty 29481 135565 1 0 3 0x88 kqread sshd 54247 486459 90320 73 3 0x1100090 kqread syslogd 90320 157900 1 0 3 0x100082 sbwait syslogd 68578 4010 1 0 3 0x100080 kqread resolvd 96239 357576 35269 77 3 0x100092 kqread dhcpleased 83514 409777 35269 77 3 0x100092 kqread dhcpleased 35269 510875 1 0 3 0x80 kqread dhcpleased 34680 405942 0 0 2 0x14200 smr 90847 238789 0 0 2 0x14200 zerothread 94758 150317 0 0 3 0x14200 aiodoned aiodoned 80541 412628 0 0 3 0x14200 syncer update 10026 89629 0 0 3 0x14200 cleaner cleaner 19904 17214 0 0 3 0x14200 reaper reaper 14410 402540 0 0 3 0x14200 pgdaemon pagedaemon 54669 69885 0 0 3 0x14200 bored viomb 27612 489243 0 0 3 0x40014200 acpi0 acpi0 90316 186330 0 0 3 0x14200 bored softnet0 60950 197867 0 0 3 0x14200 bored systqmp 78158 98150 0 0 3 0x14200 bored systq 82058 419612 0 0 3 0x40014200 tmoslp softclock 9130 244374 0 0 3 0x40014200 idle0 1 378345 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 11052 12180K 13270K 166960K 13076 0 pcb 17 12K 12K 166960K 75 0 rtable 249 9K 9K 166960K 504 0 pf 38 14K 17K 166960K 84 0 ifaddr 41 7K 8K 166960K 65 0 ifgroup 56 2K 2K 166960K 103 0 sysctl 3 1K 9K 166960K 12 0 counters 35 18K 18K 166960K 59 0 ioctlops 0 0K 4K 166960K 150 0 iov 0 0K 16K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1422 89K 89K 166960K 2087 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 33 0 dirhash 15 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 614 0 sigio 0 0K 0K 166960K 8 0 proc 60 59K 108K 166960K 543 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 52 0 in_multi 88 6K 7K 166960K 112 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 459 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 211 150K 170K 166960K 7156 0 UVM aobj 55 3K 4K 166960K 58 0 pinsyscall 37 74K 94K 166960K 1705 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 13 0 NDP 13 0K 2K 166960K 45 0 temp 55 9071K 9161K 166960K 27294 0 kqueue 13 20K 28K 166960K 107 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 120 174 0 169 4 3 1 3 0 8 0 rtentry 136 121 0 17 5 0 5 5 0 8 0 unpcb 144 256 0 238 2 1 1 2 0 8 0 syncache 336 7 0 7 1 1 0 1 0 8 0 tcpcb 736 144 0 140 1 0 1 1 0 8 0 arp 96 20 0 2 1 0 1 1 0 8 0 ipq 40 5 0 0 1 0 1 1 0 8 0 ipqe 40 5 0 0 1 0 1 1 0 8 0 inpcb 328 359 0 349 3 1 2 2 0 8 1 ip6q 72 5 0 2 1 0 1 1 0 8 0 ip6af 40 7 0 4 1 0 1 1 0 8 0 nd6 112 28 0 6 1 0 1 1 0 8 0 pkpcb 40 71 0 71 3 2 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 20 0 19 3 2 1 1 0 8 0 pppxif 1416 1 0 1 1 1 0 1 0 8 0 pfstscr 40 5 0 3 1 0 1 1 0 8 0 pfrktable 1344 2 0 2 1 1 0 1 0 8 0 pfstitem 24 6 0 2 1 0 1 1 0 8 0 pfstkey 128 10 0 4 2 1 1 1 0 8 0 pfstate 384 5 0 3 2 1 1 1 0 8 0 pfrule 1360 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 500 0 57 31 2 29 31 0 8 0 art_table 40 503 0 57 5 0 5 5 0 8 0 art_node 32 120 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 37 0 36 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 55 0 3 2 0 2 2 0 8 0 dirhash 1024 25 0 6 3 0 3 3 0 8 0 dino2pl 256 2648 0 1192 92 0 92 92 0 8 0 ffsino 256 2648 0 1192 92 0 92 92 0 8 0 nchpl 144 3493 0 1799 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 vnodes 216 3120 0 0 174 0 174 174 0 8 0 namei 1024 11890 0 11888 5 4 1 2 0 8 0 kstatmem 264 59 0 32 2 0 2 2 0 8 0 scsiplug 72 6 0 6 3 2 1 1 0 8 1 scxspl 216 15665 0 15665 11 9 2 8 1 8 2 plimitpl 152 179 0 161 1 0 1 1 0 8 0 sigapl 424 908 0 866 6 1 5 6 0 8 0 knotepl 120 25007 0 24960 38 29 9 17 0 8 7 kqueuepl 184 230 0 221 4 3 1 4 0 8 0 pipepl 304 146 0 119 3 0 3 3 0 8 0 fdescpl 448 894 0 866 5 1 4 5 0 8 0 filepl 120 5291 0 5066 12 3 9 10 0 8 2 lockfpl 104 412 0 409 2 1 1 2 0 8 0 lockfspl 48 173 0 170 1 0 1 1 0 8 0 sessionpl 144 35 0 27 1 0 1 1 0 8 0 pgrppl 48 50 0 34 1 0 1 1 0 8 0 ucredpl 104 1043 0 1031 1 0 1 1 0 8 0 zombiepl 144 909 0 907 1 0 1 1 0 8 0 processpl 1152 908 0 866 4 0 4 4 0 8 0 procpl 664 1632 0 1586 7 1 6 6 0 8 1 sockpl 552 881 0 848 11 8 3 8 0 8 0 mcl64k 65536 34 0 34 3 2 1 1 0 8 1 mcl16k 16384 6 0 6 3 2 1 1 0 8 1 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 15 0 14 1 0 1 1 0 8 0 mcl4k 4096 3195 0 3141 15 7 8 15 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 613 0 608 2 1 1 2 0 8 0 mtagpl 96 13 0 6 1 0 1 1 0 8 0 mbufpl 256 9451 0 9276 32 17 15 24 0 8 0 bufpl 280 6747 0 533 445 0 445 445 0 8 0 anonpl 24 160551 0 157436 56 11 45 54 0 187 9 amapchunkpl 152 24035 0 23606 32 10 22 30 0 158 1 amappl16 200 3210 0 3185 21 7 14 15 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 411 0 410 1 0 1 1 0 8 0 amappl13 176 118 0 108 1 0 1 1 0 8 0 amappl12 168 1136 0 1109 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 57 0 47 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 1 0 1 0 8 0 amappl8 136 96 0 95 1 0 1 1 0 8 0 amappl7 128 145 0 133 1 0 1 1 0 8 0 amappl6 120 152 0 149 1 0 1 1 0 8 0 amappl5 112 88 0 80 1 0 1 1 0 8 0 amappl4 104 272 0 255 1 0 1 1 0 8 0 amappl3 96 4579 0 4480 5 1 4 4 0 8 0 amappl2 88 506 0 451 2 0 2 2 0 8 0 amappl1 80 10935 0 10396 13 1 12 13 0 8 0 amappl 88 6387 0 6239 6 2 4 5 0 92 0 uvmvnodes 80 119 0 0 3 0 3 3 0 8 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 7 0 7 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 1 1 0 8 1 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 57 0 3 1 0 1 1 0 8 0 uaddrrnd 24 894 0 866 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 894 0 866 1 0 1 1 0 8 0 vmmpekpl 168 8365 0 8330 2 0 2 2 0 8 0 vmmpepl 168 62814 0 61099 91 0 91 91 0 357 9 vmsppl 368 893 0 866 4 1 3 4 0 8 0 rwobjpl 40 19532 0 18534 13 0 13 13 0 8 0 pdppl 4096 1794 0 1732 98 32 66 80 0 8 4 pvpl 32 424588 0 414841 139 29 110 125 0 265 17 pmappl 216 893 0 866 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 397 0 74 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff8385a990) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8385a990) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff8000338cd400) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 sys/kern/kern_tc.c:217 tuagg_add_runtime() at tuagg_add_runtime+0x40 sys/kern/kern_resource.c:449 mi_switch() at mi_switch+0xb1 sys/kern/sched_bsd.c:372 ast(ffff8000338cd4d0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff8000338cd4d0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x2c25c931be0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff8385a990) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8385a990) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff8000338cd400) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff8000338cd400) at nanouptime+0x61 sys/kern/kern_tc.c:217 tuagg_add_runtime() at tuagg_add_runtime+0x40 sys/kern/kern_resource.c:449 mi_switch() at mi_switch+0xb1 sys/kern/sched_bsd.c:372 ast(ffff8000338cd4d0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff8000338cd4d0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x2c25c931be0, count: -6