uuvm_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 *421992 68 0 0 0x4000000 0 syz-executor 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 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(ffff80003c910ba0) 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_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x1c7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0x1c7 sys/dev/acpi/acpitimer.c:125 comcnputc(800,75) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(75) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(75) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833bbdc7) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347a92e) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c9110c0,ffff800029ef6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 end trace frame: 0xffff80003c9110b0, 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(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 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(ffff80003c910ba0) 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_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x1c7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0x1c7 sys/dev/acpi/acpitimer.c:125 comcnputc(800,75) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(75) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(75) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833bbdc7) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347a92e) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c9110c0,ffff800029ef6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c9110c0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a7af610) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83879d80,ffff80002a746338) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a746338,0) 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,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015e9800,3,ffff80003c90a7e8) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd8075381108,84946467,ffff8000015e9800,3,fffffd8007ffd750,ffff80003c90a7e8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80748ac268,84946467,ffff8000015e9800,ffff80003c90a7e8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c90a7e8,ffff80003c911820,ffff80003c911770) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c911820) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c911820) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdbee5075bf0, count: -30 ddb> show registers rdi 0xffffffff rsi 0xd rbp 0xffff80003c910a90 rbx 0x9 rdx 0xffff8000015d8e00 rcx 0 rax 0xc r8 0 r9 0 r10 0 r11 0xcd03b6d81d35e532 r12 0x14f5 __ALIGN_SIZE+0x4f5 r13 0xffffffff838e5990 th0 r14 0xffffffff838f2b00 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff82ac13d3 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c910a40 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=421992 pid=68 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=0xffff80003c90aa80,0xffff80003c90ad28 process=0xffff8000ffff9698 user=0xffff80003c90c000, vmspace=0xfffffd806cb1b460 estcpu=36, cpticks=279, pctcpu=0.0, user=0, sys=279, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 21569 430470 53978 0 2 0 syz-executor 21569 438146 53978 0 2 0x4000000 syz-executor 29552 511852 41806 0 2 0 syz-executor 29552 273149 41806 0 3 0x4000080 fsleep syz-executor 21862 468293 34276 0 2 0 syz-executor 21862 416865 34276 0 3 0x4000080 fsleep syz-executor 68 19518 59018 0 2 0 syz-executor * 68 421992 59018 0 7 0x4000000 syz-executor 84616 112150 12410 0 2 0 syz-executor 84616 269401 12410 0 2 0x4000000 syz-executor 92615 177363 86472 0 2 0 syz-executor 87132 14533 65748 0 3 0x80 nanoslp syz-executor 87132 305780 65748 0 3 0x4000080 msgwait syz-executor 87132 79323 65748 0 3 0x4000080 msgwait syz-executor 87132 522761 65748 0 3 0x4000080 fsleep syz-executor 59599 62019 34702 0 3 0x80 nanoslp syz-executor 59599 113778 34702 0 3 0x4000080 sbwait syz-executor 59599 457841 34702 0 3 0x4000080 fsleep syz-executor 1280 371749 0 0 3 0x14200 acct acct 41806 146529 26509 0 3 0x82 nanoslp syz-executor 34276 303254 26509 0 3 0x82 nanoslp syz-executor 86472 28437 26509 0 3 0x82 nanoslp syz-executor 59018 203265 26509 0 3 0x82 nanoslp syz-executor 12410 506270 26509 0 3 0x82 nanoslp syz-executor 34702 391248 26509 0 3 0x82 nanoslp syz-executor 65748 118030 26509 0 3 0x82 nanoslp syz-executor 53978 353509 26509 0 3 0x82 nanoslp syz-executor 26509 31875 67095 0 3 0x82 kqread syz-executor 67095 195113 57441 0 3 0x10008a sigsusp ksh 57441 172450 79 0 3 0x98 kqread sshd-session 79 79266 57341 0 3 0x92 kqread sshd-session 18583 332627 1 0 3 0x100083 ttyopn getty 57341 503637 1 0 3 0x88 kqread sshd 85636 290933 98617 73 3 0x1100090 kqread syslogd 98617 79408 1 0 3 0x100082 sbwait syslogd 39299 130430 1 0 3 0x100080 kqread resolvd 8525 37405 98710 77 3 0x100092 kqread dhcpleased 33704 133658 98710 77 3 0x100092 kqread dhcpleased 98710 79776 1 0 3 0x80 kqread dhcpleased 29634 397252 0 0 3 0x14200 bored smr 36707 223048 0 0 2 0x14200 zerothread 55801 492353 0 0 3 0x14200 aiodoned aiodoned 7154 6507 0 0 3 0x14200 syncer update 72288 453490 0 0 3 0x14200 cleaner cleaner 25413 474221 0 0 3 0x14200 reaper reaper 27575 376047 0 0 3 0x14200 pgdaemon pagedaemon 53433 86813 0 0 3 0x14200 bored viomb 25881 151485 0 0 3 0x40014200 acpi0 acpi0 12222 88142 0 0 3 0x14200 bored softnet0 25111 397889 0 0 3 0x14200 smrbar systqmp 95626 329114 0 0 3 0x14200 bored systq 44637 161777 0 0 3 0x40014200 tmoslp softclock 81298 507 0 0 3 0x40014200 idle0 1 378575 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 11033 12097K 12428K 166960K 12749 0 pcb 18 12K 12K 166960K 125 0 rtable 149 5K 7K 166960K 425 0 pf 27 12K 18K 166960K 92 0 ifaddr 24 3K 7K 166960K 66 0 ifgroup 38 1K 2K 166960K 96 0 sysctl 3 1K 9K 166960K 7 0 counters 30 17K 18K 166960K 53 0 ioctlops 1 2K 4K 166960K 76 0 iov 0 0K 16K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1287 81K 82K 166960K 1721 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 1003 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 116K 166960K 555 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 0 0K 0K 166960K 49 0 in_multi 44 3K 7K 166960K 166 0 ether_multi 1 0K 0K 166960K 33 0 mrt 0 0K 0K 166960K 49 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 421 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 213 150K 167K 166960K 9919 0 UVM aobj 11 6K 6K 166960K 11 0 pinsyscall 39 78K 95K 166960K 2104 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 44 0 temp 45 9068K 9132K 166960K 23110 0 kqueue 13 20K 30K 166960K 171 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 45 0 42 1 0 1 1 0 8 0 rtentry 136 132 0 73 4 0 4 4 0 8 0 unpcb 144 251 0 234 1 0 1 1 0 8 0 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpcb 736 113 0 109 1 0 1 1 0 8 0 arp 96 20 0 10 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 369 0 360 2 0 2 2 0 8 1 nd6 112 25 0 16 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 15 0 15 1 0 1 1 0 8 1 pppxif 1416 4 0 4 1 0 1 1 0 8 1 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pfanchor 1288 3 0 3 1 0 1 1 0 8 1 pftag 88 3 0 3 1 0 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 4 1 0 1 1 0 8 0 pfstate 384 4 0 2 1 0 1 1 0 8 0 pfrule 1360 7 0 7 1 0 1 1 0 8 1 rttmr 136 8 0 8 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 664 0 425 30 3 27 30 0 8 8 art_table 40 666 0 425 5 0 5 5 0 8 0 art_node 32 132 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 2916 0 1461 92 0 92 92 0 8 0 ffsino 256 2916 0 1461 92 0 92 92 0 8 0 nchpl 144 4063 0 2372 63 0 63 63 0 8 0 vnodes 216 3161 0 0 176 0 176 176 0 8 0 namei 1024 11766 0 11765 2 0 2 2 0 8 1 kstatmem 264 55 0 38 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 19464 0 19464 8 0 8 8 1 8 8 plimitpl 152 202 0 185 1 0 1 1 0 8 0 sigapl 424 1299 0 1255 6 0 6 6 0 8 1 knotepl 120 36086 0 36039 10 0 10 10 0 8 8 kqueuepl 184 142 0 133 1 0 1 1 0 8 0 pipepl 304 137 0 110 3 0 3 3 0 8 0 fdescpl 448 1285 0 1255 5 0 5 5 0 8 1 filepl 120 4413 0 4202 7 0 7 7 0 8 0 lockfpl 104 188 0 186 1 0 1 1 0 8 0 lockfspl 48 76 0 74 1 0 1 1 0 8 0 sessionpl 144 40 0 32 1 0 1 1 0 8 0 pgrppl 48 48 0 32 1 0 1 1 0 8 0 ucredpl 104 1298 0 1287 1 0 1 1 0 8 0 zombiepl 144 1255 0 1255 1 0 1 1 0 8 1 processpl 1152 1299 0 1255 4 0 4 4 0 8 0 procpl 664 2347 0 2293 5 0 5 5 0 8 0 sockpl 552 667 0 638 3 0 3 3 0 8 0 mcl64k 65536 505 0 505 1 0 1 1 0 8 1 mcl16k 16384 222 0 222 1 0 1 1 0 8 1 mcl12k 12288 157 0 157 1 0 1 1 0 8 1 mcl9k 9216 49 0 49 1 0 1 1 0 8 1 mcl8k 8192 162 0 162 1 0 1 1 0 8 1 mcl4k 4096 4352 0 4296 16 1 15 16 0 8 7 mcl2k2 2112 3 0 3 1 0 1 1 0 8 1 mcl2k 2048 384 0 382 2 0 2 2 0 8 1 mtagpl 96 15 0 10 1 0 1 1 0 8 0 mbufpl 256 15541 0 15410 16 0 16 16 0 8 3 bufpl 280 10456 0 4242 444 0 444 444 0 8 0 anonpl 24 217722 0 214573 61 0 61 61 0 187 33 amapchunkpl 152 33786 0 33334 30 0 30 30 0 158 11 amappl16 200 4501 0 4467 23 10 13 19 0 8 8 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 412 0 410 1 0 1 1 0 8 0 amappl13 176 113 0 103 1 0 1 1 0 8 0 amappl12 168 1526 0 1497 2 0 2 2 0 8 0 amappl11 160 11 0 10 1 0 1 1 0 8 0 amappl10 152 59 0 49 1 0 1 1 0 8 0 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 102 0 101 1 0 1 1 0 8 0 amappl7 128 142 0 131 1 0 1 1 0 8 0 amappl6 120 174 0 173 1 0 1 1 0 8 0 amappl5 112 102 0 95 1 0 1 1 0 8 0 amappl4 104 261 0 245 1 0 1 1 0 8 0 amappl3 96 6865 0 6762 3 0 3 3 0 8 0 amappl2 88 517 0 466 2 0 2 2 0 8 0 amappl1 80 13144 0 12588 16 0 16 16 0 8 4 amappl 88 9190 0 9038 4 0 4 4 0 92 0 uvmvnodes 80 124 0 0 3 0 3 3 0 8 0 dma4096 4096 3 0 3 1 0 1 1 0 8 1 dma2048 2048 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 128 254 0 254 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1285 0 1255 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1285 0 1255 1 0 1 1 0 8 0 vmmpekpl 168 10408 0 10383 2 0 2 2 0 8 0 vmmpepl 168 85679 0 83867 93 0 93 93 0 357 12 vmsppl 368 1284 0 1255 4 0 4 4 0 8 1 rwobjpl 40 24169 0 23204 13 0 13 13 0 8 0 pdppl 4096 2576 0 2510 100 34 66 82 0 8 0 pvpl 32 692363 0 683417 163 0 163 163 0 265 70 pmappl 216 1284 0 1255 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 374 0 38 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 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(ffff80003c910ba0) 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_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x1c7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0x1c7 sys/dev/acpi/acpitimer.c:125 comcnputc(800,75) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(75) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(75) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833bbdc7) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347a92e) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c9110c0,ffff800029ef6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c9110c0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a7af610) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83879d80,ffff80002a746338) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a746338,0) 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,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015e9800,3,ffff80003c90a7e8) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd8075381108,84946467,ffff8000015e9800,3,fffffd8007ffd750,ffff80003c90a7e8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80748ac268,84946467,ffff8000015e9800,ffff80003c90a7e8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c90a7e8,ffff80003c911820,ffff80003c911770) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c911820) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c911820) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdbee5075bf0, count: -30 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 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(ffff80003c910ba0) 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_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x1c7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0x1c7 sys/dev/acpi/acpitimer.c:125 comcnputc(800,75) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(75) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(75) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff833bbdc7) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347a92e) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c9110c0,ffff800029ef6000) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c9110c0) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b kcov_remote_enter(0,ffff80002a7af610) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83879d80,ffff80002a746338) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a746338,0) 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,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015e9800,3,ffff80003c90a7e8) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd8075381108,84946467,ffff8000015e9800,3,fffffd8007ffd750,ffff80003c90a7e8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80748ac268,84946467,ffff8000015e9800,ffff80003c90a7e8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c90a7e8,ffff80003c911820,ffff80003c911770) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c911820) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c911820) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdbee5075bf0, count: -30