uvm_fault(0xffffffff83933440, 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(ffffffff8386b9c0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003b903220) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003b903220) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003b903220) 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(ffff80003b9032f0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003b9032f0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0xd5c5f3722c0, 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(0xffffffff83933440, 0xffff800029ef5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003b903220) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003b903220) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003b903220) 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(ffff80003b9032f0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003b9032f0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0xd5c5f3722c0, count: -6 ddb> show registers rdi 0xffff8000388f2000 rsi 0x50e17 acpi_pdirpa+0x3cc88 rbp 0xffff80003b9031a0 rbx 0xffffffff838a7080 th0 rdx 0xffff8000388f2000 rcx 0x50e16 acpi_pdirpa+0x3cc87 rax 0xc r8 0 r9 0x201 r10 0xc3cf5106a330de83 r11 0xad751bc2afc08522 r12 0 r13 0x11a9 __ALIGN_SIZE+0x1a9 r14 0xffffffff8386b9c0 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff81a56103 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003b903150 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=72128 pid=26499 tcnt=2 stat=run flags process=0 proc=4000000 runpri=79, usrpri=79, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0x0, list=0xffff80002a81e2c8,0xffffffff83a6b408 process=0xffff8000340d1fa0 user=0xffff80003b8fe000, vmspace=0xfffffd807212fa20 estcpu=29, cpticks=94, pctcpu=0.94, user=0, sys=94, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 26499 507761 56132 0 2 0 syz-executor *26499 72128 56132 0 2 0x4000000 syz-executor 62686 136452 11180 0 2 0 syz-executor 62686 513495 11180 0 3 0x4000080 fsleep syz-executor 13417 101565 26739 0 2 0 syz-executor 13417 199529 26739 0 3 0x4000080 fsleep syz-executor 9906 334277 0 0 3 0x14280 nfsidl nfsio 97580 345353 0 0 3 0x14280 nfsidl nfsio 26126 472746 0 0 3 0x14280 nfsidl nfsio 48707 412717 0 0 3 0x14280 nfsidl nfsio 35188 52129 0 0 3 0x14280 nfsidl nfsio 30913 464675 0 0 3 0x14280 nfsidl nfsio 11633 431530 0 0 3 0x14280 nfsidl nfsio 62063 352277 0 0 3 0x14280 nfsidl nfsio 23791 397255 0 0 3 0x14280 nfsidl nfsio 6580 204137 0 0 3 0x14280 nfsidl nfsio 66769 192893 0 0 3 0x14280 nfsidl nfsio 78643 364668 0 0 3 0x14280 nfsidl nfsio 44095 494240 0 0 3 0x14280 nfsidl nfsio 14370 239694 0 0 3 0x14280 nfsidl nfsio 16547 315567 0 0 3 0x14280 nfsidl nfsio 72776 151259 0 0 3 0x14280 nfsidl nfsio 25512 398334 0 0 3 0x14280 nfsidl nfsio 16260 98354 0 0 3 0x14280 nfsidl nfsio 22849 393619 0 0 3 0x14280 nfsidl nfsio 43733 344489 0 0 3 0x14280 nfsidl nfsio 94739 220537 81338 0 2 0 syz-executor 93553 269843 1088 0 2 0 syz-executor 93553 146544 1088 0 3 0x4000080 fsleep syz-executor 93553 516045 1088 0 3 0x4000080 fsleep syz-executor 50696 112971 76505 0 2 0xc80 syz-executor 50696 495939 76505 0 2 0x4000000 syz-executor 50696 502656 76505 0 2 0x4000000 syz-executor 50696 94920 76505 0 2 0x4000000 syz-executor 74781 14781 49555 0 2 0 syz-executor 74781 349185 49555 0 3 0x4000080 fsleep syz-executor 74781 397122 49555 0 3 0x4000080 fsleep syz-executor 74781 423104 49555 0 3 0x4000080 fsleep syz-executor 74781 322945 49555 0 3 0x4000080 fsleep syz-executor 63431 340624 0 0 3 0x14200 acct acct 16608 212274 52660 0 2 0xc82 syz-executor 52389 254864 1 0 3 0x100083 ttyin getty 56132 293724 52660 0 2 0xc82 syz-executor 1088 277625 52660 0 2 0xc82 syz-executor 49555 218421 52660 0 2 0xc82 syz-executor 11180 84070 52660 0 2 0xc82 syz-executor 81338 57487 52660 0 2 0xc82 syz-executor 76505 204681 52660 0 2 0xc82 syz-executor 26739 400320 52660 0 2 0xc82 syz-executor 52660 234763 88670 0 3 0x82 kqread syz-executor 88670 34431 31884 0 3 0x10008a sigsusp ksh 31884 276604 64042 0 3 0x98 kqread sshd-session 64042 179688 42460 0 3 0x92 kqread sshd-session 42460 435927 1 0 3 0x88 kqread sshd 19675 465496 28718 73 3 0x1100090 kqread syslogd 28718 477425 1 0 3 0x100082 sbwait syslogd 29430 262748 1 0 3 0x100080 kqread resolvd 23858 163462 50483 77 3 0x100092 kqread dhcpleased 58006 316823 50483 77 3 0x100092 kqread dhcpleased 50483 103630 1 0 3 0x80 kqread dhcpleased 88880 33408 0 0 2 0x14200 smr 83107 16244 0 0 2 0x14200 zerothread 65055 475997 0 0 3 0x14200 aiodoned aiodoned 32477 45839 0 0 2 0x14e00 update 68326 189183 0 0 3 0x14200 cleaner cleaner 94337 171094 0 0 3 0x14200 reaper reaper 35345 25113 0 0 3 0x14200 pgdaemon pagedaemon 69242 466216 0 0 3 0x14200 bored viomb 5668 348645 0 0 3 0x40014200 acpi0 acpi0 9 274245 0 0 3 0x14200 bored softnet0 51660 376849 0 0 3 0x14200 bored systqmp 66350 438237 0 0 3 0x14200 bored systq 42840 169168 0 0 2 0x40014200 softclock 20053 178798 0 0 3 0x40014200 idle0 1 101054 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 11061 12127K 12401K 166960K 13475 0 pcb 17 14K 18K 166960K 242 0 rtable 225 7K 11K 166960K 511 0 pf 28 12K 19K 166960K 103 0 ifaddr 35 6K 7K 166960K 65 0 ifgroup 42 1K 2K 166960K 91 0 sysctl 3 1K 9K 166960K 16 0 counters 31 17K 17K 166960K 51 0 ioctlops 0 0K 4K 166960K 160 0 iov 0 0K 16K 166960K 34 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1353 85K 85K 166960K 2108 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 72 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 228K 166960K 747 0 sigio 0 0K 0K 166960K 10 0 proc 60 59K 91K 166960K 563 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 71 0 in_multi 77 5K 7K 166960K 124 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 500 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 232 151K 176K 166960K 8260 0 UVM aobj 20 5K 5K 166960K 21 0 pinsyscall 39 78K 88K 166960K 1898 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 9 0K 2K 166960K 41 0 temp 65 9073K 9139K 166960K 29461 0 kqueue 14 22K 29K 166960K 136 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 120 146 0 143 3 0 3 3 0 8 2 rtentry 136 155 0 57 5 0 5 5 0 8 0 unpcb 144 361 0 344 2 0 2 2 0 8 1 syncache 336 11 0 11 2 1 1 1 0 8 1 tcpqe 32 4 0 4 1 0 1 1 0 8 1 tcpcb 736 420 0 413 13 6 7 7 0 8 6 arp 96 27 0 9 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 5 0 2 1 0 1 1 0 8 0 inpcb 328 887 0 876 13 6 7 7 0 8 5 ip6q 72 4 0 1 1 0 1 1 0 8 0 ip6af 40 7 0 2 1 0 1 1 0 8 0 nd6 112 35 0 15 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 13 0 13 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 pfrktable 1344 12 0 11 1 0 1 1 0 8 0 pfsrclim 320 3 0 3 1 0 1 1 0 8 1 pfanchor 1288 2 0 2 1 0 1 1 0 8 1 pftag 88 5 0 4 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 3 0 1 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1360 8 0 7 1 0 1 1 0 8 0 rttmr 136 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 679 0 252 31 0 31 31 0 8 3 art_table 40 682 0 252 6 0 6 6 0 8 0 art_node 32 154 0 65 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 10 1 0 1 1 0 8 0 semupl 112 4 0 4 1 0 1 1 0 8 1 semapl 112 70 0 60 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2670 0 1218 92 0 92 92 0 8 0 ffsino 256 2670 0 1218 92 0 92 92 0 8 0 nchpl 144 3679 0 1982 64 0 64 64 0 8 0 vnodes 216 3271 0 0 182 0 182 182 0 8 0 namei 1024 12504 0 12504 2 1 1 1 0 8 1 pfiaddrpl 120 3 0 3 1 0 1 1 0 8 1 kstatmem 264 46 0 28 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 15510 0 15510 10 2 8 8 1 8 8 plimitpl 152 132 0 114 1 0 1 1 0 8 0 sigapl 424 1056 0 992 8 0 8 8 0 8 0 knotepl 120 26757 0 26708 22 12 10 15 0 8 8 kqueuepl 184 253 0 243 1 0 1 1 0 8 0 pipepl 304 165 0 137 3 0 3 3 0 8 0 fdescpl 448 1022 0 992 4 0 4 4 0 8 0 filepl 120 5895 0 5641 14 3 11 11 0 8 3 lockfpl 104 523 0 521 2 0 2 2 0 8 1 lockfspl 48 201 0 199 1 0 1 1 0 8 0 sessionpl 144 56 0 48 1 0 1 1 0 8 0 pgrppl 48 73 0 57 1 0 1 1 0 8 0 ucredpl 104 866 0 853 1 0 1 1 0 8 0 zombiepl 144 993 0 992 2 1 1 1 0 8 0 processpl 1152 1056 0 992 5 0 5 5 0 8 0 procpl 664 1941 0 1865 7 0 7 7 0 8 0 sosppl 176 10 0 10 1 0 1 1 0 8 1 sockpl 552 1451 0 1420 13 5 8 8 0 8 5 mcl64k 65536 131 0 131 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 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 12 0 11 2 1 1 1 0 8 0 mcl4k 4096 3368 0 3316 15 6 9 15 0 8 2 mcl2k 2048 742 0 738 4 0 4 4 0 8 3 mtagpl 96 12 0 7 1 0 1 1 0 8 0 mbufpl 256 10996 0 10807 23 7 16 17 0 8 2 bufpl 280 6643 0 429 444 0 444 444 0 8 0 anonpl 24 173785 0 170263 58 0 58 58 0 187 32 amapchunkpl 152 27897 0 27385 35 0 35 35 0 158 13 amappl16 200 3071 0 3026 22 12 10 15 0 8 6 amappl15 192 87 0 87 1 1 0 1 0 8 0 amappl14 184 426 0 425 1 0 1 1 0 8 0 amappl13 176 129 0 119 1 0 1 1 0 8 0 amappl12 168 1281 0 1252 2 0 2 2 0 8 0 amappl11 160 4 0 3 1 0 1 1 0 8 0 amappl10 152 77 0 67 1 0 1 1 0 8 0 amappl9 144 263 0 263 1 1 0 1 0 8 0 amappl8 136 104 0 103 1 0 1 1 0 8 0 amappl7 128 153 0 140 1 0 1 1 0 8 0 amappl6 120 182 0 180 1 0 1 1 0 8 0 amappl5 112 102 0 92 1 0 1 1 0 8 0 amappl4 104 280 0 264 1 0 1 1 0 8 0 amappl3 96 5320 0 5204 4 0 4 4 0 8 0 amappl2 88 656 0 599 2 0 2 2 0 8 0 amappl1 80 13551 0 13004 16 1 15 15 0 8 2 amappl 88 7417 0 7246 5 0 5 5 0 92 0 uvmvnodes 80 114 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 254 0 254 2 1 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 20 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1022 0 992 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1022 0 992 1 0 1 1 0 8 0 vmmpekpl 168 9953 0 9917 2 0 2 2 0 8 0 vmmpepl 168 73484 0 71629 93 0 93 93 0 357 8 vmsppl 368 1021 0 992 4 0 4 4 0 8 1 rwobjpl 40 22511 0 21499 14 1 13 13 0 8 0 pdppl 4096 2050 0 1984 104 36 68 74 0 8 2 pvpl 32 470573 0 460755 131 0 131 131 0 265 49 pmappl 216 1021 0 992 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 403 0 61 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003b903220) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003b903220) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003b903220) 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(ffff80003b9032f0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003b9032f0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0xd5c5f3722c0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8386b9c0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003b903220) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003b903220) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003b903220) 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(ffff80003b9032f0) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003b9032f0) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0xd5c5f3722c0, count: -6