uvm_fault(0xffffffff83963648, 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(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003c903ae0) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003c903ae0) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003c903ae0) 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(ffff80003c903bb0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c903bb0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x56c171a58e0, 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(0xffffffff83963648, 0xffff800029ef5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003c903ae0) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003c903ae0) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003c903ae0) 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(ffff80003c903bb0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c903bb0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x56c171a58e0, count: -6 ddb> show registers rdi 0xffff80002f0c2000 rsi 0x48765 acpi_pdirpa+0x345d6 rbp 0xffff80003c903a60 rbx 0xffffffff838e5990 th0 rdx 0xffff80002f0c2000 rcx 0x48764 acpi_pdirpa+0x345d5 rax 0xc r8 0xffff80003c9036a8 r9 0x21 r10 0x9dfdd4ca5fd456e5 r11 0x698cab9f0e79a48a r12 0 r13 0x13d9 __ALIGN_SIZE+0x3d9 r14 0xffffffff838f2b00 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff82ac13d3 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c903a10 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=119125 pid=23924 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=0xffff80002f0befb8,0xffff80002f0bf4f8 process=0xffff8000ffffb618 user=0xffff80003c8fe000, vmspace=0xfffffd807e6a7018 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 8657 239225 42917 0 3 0x80 nanoslp syz-executor 8657 157193 42917 0 3 0x4000080 netcon syz-executor 8657 354912 42917 0 3 0x4000080 fsleep syz-executor 8657 212004 42917 0 3 0x4000080 fsleep syz-executor 23924 258335 41202 0 2 0 syz-executor *23924 119125 41202 0 2 0x4000000 syz-executor 45215 186551 59814 0 3 0x80 nanoslp syz-executor 45215 244971 59814 0 3 0x4000080 kqsel syz-executor 45215 176041 59814 0 3 0x4000080 fsleep syz-executor 21336 241643 58020 0 3 0x80 nanoslp syz-executor 21336 6517 58020 0 3 0x4000080 msgwait syz-executor 21336 47096 58020 0 3 0x4000080 fsleep syz-executor 21336 132913 58020 0 3 0x4000080 fsleep syz-executor 60640 72215 99106 0 3 0x80 nanoslp syz-executor 60640 471432 99106 0 3 0x4000080 kqsel syz-executor 60640 237293 99106 0 3 0x4000080 fsleep syz-executor 55489 506343 55459 0 2 0xc80 syz-executor 55489 238798 55459 0 3 0x4000080 kqsel syz-executor 55489 236817 55459 0 3 0x4000080 fsleep syz-executor 88573 381706 9632 0 2 0x2 syz-executor 59814 445521 9632 0 2 0xc82 syz-executor 55459 409746 9632 0 3 0x82 nanoslp syz-executor 42917 304186 9632 0 3 0x82 nanoslp syz-executor 99106 363378 9632 0 3 0x82 nanoslp syz-executor 58020 163566 9632 0 3 0x82 nanoslp syz-executor 41202 144017 9632 0 2 0xc82 syz-executor 63333 355331 9632 0 3 0x82 wait syz-executor 9632 100625 80102 0 3 0x82 kqread syz-executor 80102 56735 92141 0 3 0x10008a sigsusp ksh 92141 123268 22061 0 3 0x98 kqread sshd-session 22061 258613 54226 0 3 0x92 kqread sshd-session 2858 479895 1 0 3 0x100083 ttyin getty 54226 331995 1 0 3 0x88 kqread sshd 89224 371259 79110 73 3 0x1100090 kqread syslogd 79110 22315 1 0 3 0x100082 sbwait syslogd 41089 217900 1 0 3 0x100080 kqread resolvd 26905 406221 58566 77 3 0x100092 kqread dhcpleased 87448 504088 58566 77 3 0x100092 kqread dhcpleased 58566 461839 1 0 3 0x80 kqread dhcpleased 95035 309005 0 0 3 0x14200 bored smr 62360 271683 0 0 2 0x14200 zerothread 77967 118048 0 0 3 0x14200 aiodoned aiodoned 9996 329006 0 0 3 0x14200 syncer update 51877 367945 0 0 3 0x14200 cleaner cleaner 71262 227787 0 0 3 0x14200 reaper reaper 60537 16418 0 0 3 0x14200 pgdaemon pagedaemon 74340 256095 0 0 3 0x14200 bored viomb 51985 137106 0 0 3 0x40014200 acpi0 acpi0 67577 256064 0 0 3 0x14200 bored softnet0 62923 467543 0 0 3 0x14200 bored systqmp 96216 353774 0 0 3 0x14200 bored systq 22288 81413 0 0 2 0x40014200 softclock 43324 246403 0 0 3 0x40014200 idle0 1 34538 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11061 12297K 12437K 166960K 13509 0 pcb 18 14K 14K 166960K 170 0 rtable 211 8K 9K 166960K 542 0 pf 34 13K 17K 166960K 118 0 ifaddr 36 6K 8K 166960K 94 0 ifgroup 50 2K 2K 166960K 157 0 sysctl 4 1K 9K 166960K 11 0 counters 33 17K 18K 166960K 79 0 ioctlops 0 0K 4K 166960K 284 0 iov 0 0K 16K 166960K 94 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1379 87K 87K 166960K 2350 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 46 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 110K 166960K 884 0 sigio 0 0K 0K 166960K 17 0 proc 60 59K 91K 166960K 618 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 3 0K 0K 166960K 109 0 in_multi 77 5K 6K 166960K 146 0 ether_multi 1 0K 0K 166960K 5 0 mrt 2 0K 0K 166960K 31 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 456 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 240 151K 177K 166960K 9525 0 UVM aobj 131 6K 7K 166960K 134 0 pinsyscall 38 76K 95K 166960K 2045 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 11 0K 1K 166960K 65 0 temp 60 9071K 9135K 166960K 25416 0 kqueue 14 22K 30K 166960K 168 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 97 0 92 1 0 1 1 0 8 0 rtentry 136 157 0 75 4 0 4 4 0 8 0 unpcb 144 830 0 815 6 0 6 6 0 8 5 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpcb 736 208 0 199 1 0 1 1 0 8 0 arp 96 24 0 8 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 328 809 0 795 7 0 7 7 0 8 5 ip6q 72 6 0 1 1 0 1 1 0 8 0 ip6af 40 10 0 3 1 0 1 1 0 8 0 nd6 112 34 0 14 1 0 1 1 0 8 0 pkpcb 40 69 0 69 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 32 0 32 1 0 1 1 0 8 1 pppxif 1416 4 0 4 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 6 1 0 1 1 0 8 0 pfstate 384 4 0 3 1 0 1 1 0 8 0 pfrule 1360 2 0 1 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 4 0 1 3 0 3 3 0 8 0 art_heap4 256 672 0 311 29 0 29 29 0 8 5 art_table 40 676 0 312 5 0 5 5 0 8 0 art_node 32 154 0 81 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 44 0 34 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3098 0 1647 92 0 92 92 0 8 0 ffsino 256 3098 0 1647 92 0 92 92 0 8 0 nchpl 144 4315 0 2614 64 0 64 64 0 8 0 rtmask 32 6 0 6 1 0 1 1 0 8 1 vnodes 216 3731 0 0 208 0 208 208 0 8 0 namei 1024 15348 0 15347 2 0 2 2 0 8 1 kstatmem 264 91 0 68 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 16433 0 16433 8 0 8 8 1 8 8 plimitpl 152 134 0 115 1 0 1 1 0 8 0 sigapl 424 1172 0 1130 6 0 6 6 0 8 0 knotepl 120 48960 0 48911 30 13 17 23 0 8 14 kqueuepl 184 517 0 504 4 0 4 4 0 8 3 pipepl 304 171 0 144 3 0 3 3 0 8 0 fdescpl 448 1158 0 1129 5 0 5 5 0 8 1 filepl 120 8333 0 8109 12 0 12 12 0 8 3 lockfpl 104 560 0 556 2 0 2 2 0 8 1 lockfspl 48 126 0 122 1 0 1 1 0 8 0 sessionpl 144 51 0 43 1 0 1 1 0 8 0 pgrppl 48 71 0 55 1 0 1 1 0 8 0 ucredpl 104 1418 0 1406 1 0 1 1 0 8 0 zombiepl 144 1131 0 1130 1 0 1 1 0 8 0 processpl 1152 1172 0 1130 4 0 4 4 0 8 0 procpl 664 2259 0 2204 6 0 6 6 0 8 1 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 552 1828 0 1793 14 3 11 12 0 8 8 mcl64k 65536 39 0 38 1 0 1 1 0 8 0 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 16 0 16 1 0 1 1 0 8 1 mcl4k 4096 3581 0 3530 15 0 15 15 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 867 0 858 3 0 3 3 0 8 1 mtagpl 96 8 0 6 1 0 1 1 0 8 0 mbufpl 256 11863 0 11670 13 0 13 13 0 8 0 bufpl 280 7039 0 825 444 0 444 444 0 8 0 anonpl 24 198958 0 195619 51 0 51 51 0 187 17 amapchunkpl 152 32614 0 32084 37 0 37 37 0 158 14 amappl16 200 3990 0 3955 23 12 11 17 0 8 8 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 439 0 438 1 0 1 1 0 8 0 amappl13 176 122 0 112 1 0 1 1 0 8 0 amappl12 168 1417 0 1389 2 0 2 2 0 8 0 amappl11 160 9 0 9 1 0 1 1 0 8 1 amappl10 152 61 0 51 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 0 1 1 0 8 1 amappl8 136 111 0 110 1 0 1 1 0 8 0 amappl7 128 164 0 152 1 0 1 1 0 8 0 amappl6 120 171 0 169 1 0 1 1 0 8 0 amappl5 112 93 0 85 1 0 1 1 0 8 0 amappl4 104 273 0 257 1 0 1 1 0 8 0 amappl3 96 6257 0 6137 4 0 4 4 0 8 0 amappl2 88 569 0 513 2 0 2 2 0 8 0 amappl1 80 13403 0 12850 15 0 15 15 0 8 2 amappl 88 8625 0 8446 5 0 5 5 0 92 0 uvmvnodes 80 126 0 0 3 0 3 3 0 8 0 dma4096 4096 2 0 2 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 255 0 255 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 1158 0 1129 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1158 0 1129 1 0 1 1 0 8 0 vmmpekpl 168 10154 0 10111 3 0 3 3 0 8 0 vmmpepl 168 80929 0 79105 94 0 94 94 0 357 13 vmsppl 368 1157 0 1129 4 0 4 4 0 8 1 rwobjpl 40 24338 0 23200 14 0 14 14 0 8 1 pdppl 4096 2322 0 2258 112 46 66 80 0 8 2 pvpl 32 527211 0 518201 127 0 127 127 0 265 35 pmappl 216 1157 0 1129 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 383 0 46 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003c903ae0) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003c903ae0) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003c903ae0) 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(ffff80003c903bb0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c903bb0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x56c171a58e0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003c903ae0) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003c903ae0) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003c903ae0) 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(ffff80003c903bb0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c903bb0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x56c171a58e0, count: -6