uvm_fault(0xffffffff839d8080, 0xffuvm_fault(0xffffffff839d8080, 0xffff800029ee5000, 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 *372076 10035 0 0 0x4000000 0 syz-executor pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff800036cce710) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,66) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,66) at comcnputc+0xd0 sys/dev/ic/com.c:1264 cnputc(66) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(66) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83425c67) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e0820) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800036ccebc0,ffff800029ee6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800036ccebc0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 end trace frame: 0xffff800036ccec40, count: 0 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(0xffffffff839d8080, 0xffff800029ee5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff800036cce710) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,66) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,66) at comcnputc+0xd0 sys/dev/ic/com.c:1264 cnputc(66) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(66) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83425c67) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e0820) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800036ccebc0,ffff800029ee6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800036ccebc0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a79c010) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838be2a0,ffff80002a7360a0) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a7360a0,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 writedisklabel(d02,ffffffff810a2fd0,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d01,84946467,ffff8000015c1000,3,ffff80003c8f8028) at sdioctl+0x959 sys/scsi/sd.c:919 VOP_IOCTL(fffffd80654d01e8,84946467,ffff8000015c1000,3,fffffd8007ffd750,ffff80003c8f8028) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806a87e168,84946467,ffff8000015c1000,ffff80003c8f8028) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c8f8028,ffff800036ccf320,ffff800036ccf270) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff800036ccf320) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036ccf320) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8a4b95d030, count: -29 ddb> show registers rdi 0xffffffff rsi 0xd rbp 0xffff800036cce600 rbx 0x9 rdx 0xffff8000015baf00 rcx 0 rax 0xc r8 0 r9 0 r10 0 r11 0x5bcb25bf4e5ccb51 r12 0x14f1 __ALIGN_SIZE+0x4f1 r13 0xffffffff838b8b90 th0 r14 0xffffffff838b1bd0 pvclock_timecounter r15 0xffff800029ee5000 rip 0xffffffff81488223 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800036cce5b0 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=372076 pid=10035 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c8f94e8,0xffffffff8399cbe0 process=0xffff80002cca7aa0 user=0xffff800036cca000, vmspace=0xfffffd800c1afb98 estcpu=36, cpticks=291, pctcpu=0.0, user=0, sys=291, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 10035 123707 69815 0 2 0 syz-executor *10035 372076 69815 0 7 0x4000000 syz-executor 99591 505241 91078 0 2 0 syz-executor 99591 333417 91078 0 3 0x4000080 ttyretype syz-executor 99591 287918 91078 0 3 0x4000080 ttyretype syz-executor 5557 83074 68175 0 2 0 syz-executor 5557 940 68175 0 3 0x4000080 fsleep syz-executor 92450 473154 37331 0 3 0x1000080 nanoslp syz-executor 92450 309678 37331 0 3 0x5000080 ttyout syz-executor 92450 462801 37331 0 3 0x5000080 ttyout syz-executor 92450 322335 37331 0 3 0x5000080 fsleep syz-executor 85206 191076 71103 0 3 0x81 nanoslp syz-executor 85206 183379 71103 0 3 0x4000081 kqread syz-executor 85206 95637 71103 0 3 0x4000081 fsleep syz-executor 87491 391680 57197 0 2 0xc90 syz-executor 87491 328966 57197 0 3 0x4000090 ttyin syz-executor 90060 95505 1 0 3 0x100083 ttyin getty 4276 389297 0 0 3 0x14200 acct acct 76121 280527 0 0 3 0x14280 nfsidl nfsio 61773 471137 0 0 3 0x14280 nfsidl nfsio 99410 48795 0 0 3 0x14280 nfsidl nfsio 36790 149449 0 0 3 0x14280 nfsidl nfsio 31015 65679 0 0 3 0x14280 nfsidl nfsio 908 79962 0 0 3 0x14280 nfsidl nfsio 98997 515461 0 0 3 0x14280 nfsidl nfsio 998 102296 0 0 3 0x14280 nfsidl nfsio 25950 223073 0 0 3 0x14280 nfsidl nfsio 3613 453209 0 0 3 0x14280 nfsidl nfsio 92334 161041 0 0 3 0x14280 nfsidl nfsio 65213 101351 0 0 3 0x14280 nfsidl nfsio 81549 171251 0 0 3 0x14280 nfsidl nfsio 55783 29599 0 0 3 0x14280 nfsidl nfsio 8922 458626 0 0 3 0x14280 nfsidl nfsio 89306 10656 0 0 3 0x14280 nfsidl nfsio 49266 276771 0 0 3 0x14280 nfsidl nfsio 93500 460904 0 0 3 0x14280 nfsidl nfsio 50574 150550 0 0 3 0x14280 nfsidl nfsio 24315 275324 0 0 3 0x14280 nfsidl nfsio 71103 43109 311 0 3 0x82 nanoslp syz-executor 57197 344101 311 0 3 0x82 nanoslp syz-executor 68175 193075 311 0 3 0x82 nanoslp syz-executor 43485 418016 311 0 3 0x82 wait syz-executor 91078 143887 311 0 3 0x82 nanoslp syz-executor 37331 437378 311 0 3 0x82 nanoslp syz-executor 18890 48370 311 0 2 0x2 syz-executor 69815 49494 311 0 3 0x82 nanoslp syz-executor 311 392875 90861 0 3 0x82 kqread syz-executor 90861 104507 27140 0 3 0x10008a sigsusp ksh 27140 107281 79126 0 3 0x98 kqread sshd-session 79126 467021 16305 0 3 0x92 kqread sshd-session 16305 21316 1 0 3 0x88 kqread sshd 29036 498683 60139 73 3 0x1100090 kqread syslogd 60139 263367 1 0 3 0x100082 sbwait syslogd 36040 227006 1 0 3 0x100080 kqread resolvd 36136 482109 81729 77 3 0x100092 kqread dhcpleased 66172 503779 81729 77 3 0x100092 kqread dhcpleased 81729 453144 1 0 3 0x80 kqread dhcpleased 92246 275179 0 0 3 0x14200 bored smr 47315 241889 0 0 2 0x14200 zerothread 47664 413382 0 0 3 0x14200 aiodoned aiodoned 94317 54180 0 0 3 0x14200 syncer update 71497 43823 0 0 3 0x14200 cleaner cleaner 31013 417190 0 0 3 0x14200 reaper reaper 78382 336140 0 0 3 0x14200 pgdaemon pagedaemon 50762 68225 0 0 3 0x14200 bored viomb 59254 315799 0 0 3 0x40014200 acpi0 acpi0 19507 250846 0 0 3 0x14200 bored softnet0 44871 410388 0 0 3 0x14200 bored systqmp 4590 86711 0 0 3 0x14200 bored systq 97649 438472 0 0 3 0x40014200 tmoslp softclock 5477 231824 0 0 3 0x40014200 idle0 1 204480 0 0 3 0x80082 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 11069 12280K 13886K 166960K 14049 0 pcb 18 16K 17K 166960K 251 0 rtable 210 10K 14K 166960K 500 0 pf 32 14K 21K 166960K 160 0 ifaddr 29 5K 7K 166960K 72 0 ifgroup 38 1K 2K 166960K 113 0 sysctl 4 1K 9K 166960K 8 0 counters 30 17K 18K 166960K 61 0 ioctlops 1 2K 4K 166960K 183 0 iov 0 0K 16K 166960K 33 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1482 93K 94K 166960K 2501 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 164 0 dirhash 12 2K 3K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1023 0 sigio 0 0K 0K 166960K 19 0 proc 61 67K 91K 166960K 616 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 129 0 in_multi 62 4K 7K 166960K 140 0 ether_multi 1 0K 0K 166960K 7 0 mrt 1 0K 0K 166960K 28 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 133 599K 599K 166960K 133 0 exec 0 0K 1K 166960K 765 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 219 158K 178K 166960K 10344 0 UVM aobj 12 2K 2K 166960K 13 0 pinsyscall 38 76K 92K 166960K 2124 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 8 0K 2K 166960K 51 0 temp 65 9113K 13212K 166960K 58976 0 kqueue 17 26K 33K 166960K 165 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 120 152 0 149 3 2 1 3 0 8 0 rtentry 136 132 0 52 4 0 4 4 0 8 0 unpcb 144 670 0 655 10 4 6 6 0 8 5 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpcb 736 372 0 365 7 6 1 7 0 8 0 arp 96 22 0 7 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 0 1 0 1 1 0 8 0 inpcb 328 1073 0 1061 18 11 7 13 0 8 5 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 112 28 0 14 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 1 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 22 0 22 2 1 1 1 0 8 1 pfstscr 40 13 0 10 1 0 1 1 0 8 0 pffrag 232 7 0 3 1 0 1 1 0 482 0 pffrnode 88 6 0 3 1 0 1 1 0 8 0 pffrent 40 13 0 7 1 0 1 1 0 8 0 pfrktable 1344 13 0 11 1 0 1 1 0 8 0 pfsrclim 320 2 0 2 2 1 1 1 0 8 1 pfanchor 1288 4 0 1 1 0 1 1 0 8 0 pftag 88 4 0 2 2 1 1 1 0 8 0 pfqueue 320 2 0 0 1 0 1 1 0 8 0 pfstitem 24 3 0 0 1 0 1 1 0 8 0 pfstkey 128 14 0 11 1 0 1 1 0 8 0 pfstate 384 8 0 6 1 0 1 1 0 8 0 pfrule 1360 18 0 16 1 0 1 1 0 8 0 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 525 0 205 30 3 27 30 0 8 5 art_table 40 527 0 205 5 0 5 5 0 8 0 art_node 32 130 0 57 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 12 1 0 1 1 0 8 0 semapl 72 148 0 138 1 0 1 1 0 8 0 shmpl 112 10 0 1 1 0 1 1 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 3385 0 1929 92 0 92 92 0 8 0 ffsino 256 3385 0 1929 92 0 92 92 0 8 0 nchpl 144 4837 0 3136 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 vnodes 216 3230 0 0 180 0 180 180 0 8 0 namei 1024 17091 0 17090 1 0 1 1 0 8 0 pfiaddrpl 120 5 0 4 1 0 1 1 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 kstatmem 264 69 0 52 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 15956 0 15956 9 7 2 8 1 8 2 plimitpl 152 302 0 284 1 0 1 1 0 8 0 sigapl 424 1330 0 1267 8 0 8 8 0 8 0 knotepl 120 41101 0 41046 29 19 10 16 0 8 6 kqueuepl 184 278 0 265 3 0 3 3 0 8 2 pipepl 304 282 0 255 5 2 3 5 0 8 0 fdescpl 448 1296 0 1267 5 1 4 5 0 8 0 filepl 120 8525 0 8293 19 6 13 14 0 8 5 lockfpl 104 418 0 415 1 0 1 1 0 8 0 lockfspl 48 187 0 184 1 0 1 1 0 8 0 sessionpl 144 123 0 114 1 0 1 1 0 8 0 pgrppl 48 137 0 120 1 0 1 1 0 8 0 ucredpl 104 1750 0 1738 1 0 1 1 0 8 0 zombiepl 144 1268 0 1267 2 1 1 1 0 8 0 processpl 1152 1330 0 1267 5 0 5 5 0 8 0 procpl 664 2597 0 2524 7 0 7 7 0 8 0 sosppl 176 5 0 5 1 0 1 1 0 8 1 sockpl 552 1934 0 1903 35 25 10 19 0 8 7 mcl64k 65536 200 0 200 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl9k128 9344 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 16 0 16 2 1 1 1 0 8 1 mcl4k 4096 3738 0 3685 14 6 8 13 0 8 0 mcl2k 2048 909 0 904 3 1 2 3 0 8 1 mtagpl 96 87 0 82 1 0 1 1 0 8 0 mbufpl 256 14497 0 14344 30 15 15 29 0 8 1 bufpl 280 7005 0 789 445 0 445 445 0 8 0 anonpl 24 181404 0 178128 50 2 48 48 0 186 23 amapchunkpl 152 35415 0 34950 35 2 33 33 0 158 14 amappl16 200 3490 0 3458 30 20 10 16 0 8 7 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 416 0 414 1 0 1 1 0 8 0 amappl13 176 120 0 110 1 0 1 1 0 8 0 amappl12 168 1538 0 1510 2 0 2 2 0 8 0 amappl11 160 9 0 8 1 0 1 1 0 8 0 amappl10 152 59 0 48 1 0 1 1 0 8 0 amappl9 144 279 0 279 1 1 0 1 0 8 0 amappl8 136 117 0 116 1 0 1 1 0 8 0 amappl7 128 147 0 135 1 0 1 1 0 8 0 amappl6 120 224 0 222 1 0 1 1 0 8 0 amappl5 112 91 0 83 1 0 1 1 0 8 0 amappl4 104 279 0 262 1 0 1 1 0 8 0 amappl3 96 7189 0 7080 5 1 4 4 0 8 1 amappl2 88 538 0 482 2 0 2 2 0 8 0 amappl1 80 13959 0 13404 13 1 12 13 0 8 0 amappl 88 9491 0 9335 5 1 4 5 0 92 0 uvmvnodes 80 128 0 0 3 0 3 3 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 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 22 0 21 1 0 1 1 0 8 0 aobjpl 72 12 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1296 0 1267 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1296 0 1267 1 0 1 1 0 8 0 vmmpekpl 168 11611 0 11578 2 0 2 2 0 8 0 vmmpepl 168 87133 0 85324 104 11 93 93 0 357 11 vmsppl 368 1295 0 1267 4 1 3 4 0 8 0 rwobjpl 40 24485 0 23494 15 2 13 13 0 8 1 pdppl 4096 2598 0 2534 106 40 66 78 0 8 2 pvpl 32 555892 0 546990 133 10 123 123 0 265 36 pmappl 216 1295 0 1267 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 403 0 82 11 1 10 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff800036cce710) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,66) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,66) at comcnputc+0xd0 sys/dev/ic/com.c:1264 cnputc(66) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(66) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83425c67) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e0820) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800036ccebc0,ffff800029ee6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800036ccebc0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a79c010) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838be2a0,ffff80002a7360a0) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a7360a0,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 writedisklabel(d02,ffffffff810a2fd0,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d01,84946467,ffff8000015c1000,3,ffff80003c8f8028) at sdioctl+0x959 sys/scsi/sd.c:919 VOP_IOCTL(fffffd80654d01e8,84946467,ffff8000015c1000,3,fffffd8007ffd750,ffff80003c8f8028) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806a87e168,84946467,ffff8000015c1000,ffff80003c8f8028) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c8f8028,ffff800036ccf320,ffff800036ccf270) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff800036ccf320) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036ccf320) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8a4b95d030, count: -29 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838b1bd0) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff800036cce710) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,66) at comcnputc+0xd0 comcn_read_reg sys/dev/ic/com.c:1671 [inline] comcnputc(800,66) at comcnputc+0xd0 sys/dev/ic/com.c:1264 cnputc(66) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(66) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83425c67) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e0820) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800036ccebc0,ffff800029ee6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800036ccebc0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a79c010) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838be2a0,ffff80002a7360a0) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a7360a0,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 writedisklabel(d02,ffffffff810a2fd0,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d01,84946467,ffff8000015c1000,3,ffff80003c8f8028) at sdioctl+0x959 sys/scsi/sd.c:919 VOP_IOCTL(fffffd80654d01e8,84946467,ffff8000015c1000,3,fffffd8007ffd750,ffff80003c8f8028) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806a87e168,84946467,ffff8000015c1000,ffff80003c8f8028) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c8f8028,ffff800036ccf320,ffff800036ccf270) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff800036ccf320) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036ccf320) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa8a4b95d030, count: -29