uvm_fault(0xffffffff83a77d60, 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(ffffffff838acd00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838acd00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003a8ebb50) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003a8ebb50) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003a8ebb50) 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(ffff80003a8ebc20) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003a8ebc20) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x177cb7e6e80, 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(0xffffffff83a77d60, 0xffff800029ef5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff838acd00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838acd00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003a8ebb50) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003a8ebb50) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003a8ebb50) 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(ffff80003a8ebc20) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003a8ebc20) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x177cb7e6e80, count: -6 ddb> show registers rdi 0xffff80002b8b6000 rsi 0x48668 acpi_pdirpa+0x344d9 rbp 0xffff80003a8ebad0 rbx 0xffffffff838b1598 th1 rdx 0xffff80002b8b6000 rcx 0x48667 acpi_pdirpa+0x344d8 rax 0xc r8 0 r9 0x201 r10 0xe600dec359d96938 r11 0x4b149d6663090a7 r12 0 r13 0x10d0 __ALIGN_SIZE+0xd0 r14 0xffffffff838acd00 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff82615f83 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a8eba80 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=145871 pid=21251 tcnt=2 stat=run flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0x0, list=0xffff80003c9394e8,0xffffffff839f2700 process=0xffff8000ffffa418 user=0xffff80003a8e6000, vmspace=0xfffffd806ccfc180 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 21251 429126 83119 0 2 0 syz-executor *21251 145871 83119 0 2 0x4000000 syz-executor 10974 108087 51511 0 2 0 syz-executor 10974 91563 51511 0 3 0x4000080 fsleep syz-executor 48926 428327 54750 0 2 0x10 syz-executor 48926 242181 54750 0 3 0x4000090 ttyin syz-executor 48926 394133 54750 0 3 0x4000090 ttyin syz-executor 48926 165264 54750 0 3 0x4000090 fsleep syz-executor 60572 78812 96407 0 3 0x81 nanoslp syz-executor 60572 291960 96407 0 3 0x4000081 lockf syz-executor 60572 485501 96407 0 3 0x4000081 fsleep syz-executor 88961 317327 0 0 3 0x14200 acct acct 28885 92013 71958 0 3 0x82 wait syz-executor 17327 179784 71958 0 3 0x82 wait syz-executor 96407 390755 71958 0 3 0x82 nanoslp syz-executor 39698 132683 71958 0 3 0x82 wait syz-executor 54750 58098 71958 0 3 0x82 nanoslp syz-executor 51511 252954 71958 0 2 0x2 syz-executor 83119 489917 71958 0 3 0x82 nanoslp syz-executor 14230 267764 71958 0 2 0x2 syz-executor 71958 109266 17792 0 3 0x82 kqread syz-executor 17792 409877 60456 0 3 0x10008a sigsusp ksh 60456 40618 88333 0 3 0x98 kqread sshd-session 88333 421333 65587 0 3 0x92 kqread sshd-session 41155 421324 1 0 3 0x100083 ttyin getty 65587 171973 1 0 3 0x88 kqread sshd 10312 71854 82654 73 3 0x1100090 kqread syslogd 82654 418053 1 0 3 0x100082 sbwait syslogd 86803 292278 1 0 3 0x100080 kqread resolvd 32670 469377 64342 77 3 0x100092 kqread dhcpleased 597 457464 64342 77 3 0x100092 kqread dhcpleased 64342 449374 1 0 3 0x80 kqread dhcpleased 44603 267351 0 0 3 0x14200 bored smr 54235 130051 0 0 2 0x14200 zerothread 78637 224000 0 0 3 0x14200 aiodoned aiodoned 90159 19645 0 0 3 0x14200 syncer update 10189 354931 0 0 3 0x14200 cleaner cleaner 40143 428919 0 0 3 0x14200 reaper reaper 60653 280049 0 0 3 0x14200 pgdaemon pagedaemon 44640 494271 0 0 3 0x14200 bored viomb 45705 421026 0 0 3 0x40014200 acpi0 acpi0 61353 233401 0 0 3 0x14200 bored softnet0 30160 319104 0 0 3 0x14200 bored systqmp 17925 171036 0 0 3 0x14200 bored systq 82506 221715 0 0 3 0x40014200 tmoslp softclock 84664 486188 0 0 3 0x40014200 idle0 1 455840 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 11047 12142K 13468K 166960K 13767 0 pcb 19 12K 12K 166960K 200 0 rtable 240 11K 12K 166960K 460 0 pf 32 13K 16K 166960K 69 0 ifaddr 40 7K 7K 166960K 57 0 ifgroup 46 2K 2K 166960K 67 0 sysctl 4 1K 9K 166960K 11 0 counters 32 17K 18K 166960K 44 0 ioctlops 0 0K 4K 166960K 254 0 iov 0 0K 16K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1421 89K 90K 166960K 2215 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 22 641K 641K 166960K 36 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 708 0 sigio 0 0K 0K 166960K 7 0 proc 60 59K 108K 166960K 546 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 96 0 in_multi 91 6K 7K 166960K 130 0 ether_multi 1 0K 0K 166960K 8 0 mrt 0 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 420 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 221 151K 169K 166960K 8009 0 UVM aobj 49 4K 4K 166960K 50 0 pinsyscall 38 76K 96K 166960K 1809 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 23 0 NDP 10 0K 2K 166960K 35 0 temp 76 9076K 9140K 166960K 21978 0 kqueue 16 22K 33K 166960K 158 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 76 0 73 1 0 1 1 0 8 0 rtentry 136 132 0 36 4 0 4 4 0 8 0 unpcb 144 560 0 544 4 0 4 4 0 8 3 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 208 0 202 4 0 4 4 0 8 3 arp 96 22 0 4 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 0 1 0 1 1 0 8 0 inpcb 328 642 0 630 7 0 7 7 0 8 5 ip6q 72 7 0 0 1 0 1 1 0 8 0 ip6af 40 10 0 1 1 0 1 1 0 8 0 nd6 112 28 0 5 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 10 0 10 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 9 0 3 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1360 7 0 5 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 524 0 116 29 0 29 29 0 8 3 art_table 40 526 0 116 5 0 5 5 0 8 0 art_node 32 129 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 30 0 10 1 0 1 1 0 8 0 shmpl 112 47 0 1 2 0 2 2 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 2730 0 1279 92 0 92 92 0 8 0 ffsino 256 2730 0 1279 92 0 92 92 0 8 0 nchpl 144 3741 0 2047 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 3405 0 0 190 0 190 190 0 8 0 namei 1024 13144 0 13143 2 0 2 2 0 8 1 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 kstatmem 264 36 0 16 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 17849 0 17849 8 0 8 8 1 8 8 plimitpl 152 291 0 275 1 0 1 1 0 8 0 sigapl 424 1004 0 961 6 0 6 6 0 8 1 knotepl 120 24015 0 23966 17 7 10 17 0 8 8 kqueuepl 184 202 0 192 1 0 1 1 0 8 0 pipepl 304 146 0 119 3 0 3 3 0 8 0 fdescpl 448 989 0 960 5 0 5 5 0 8 1 filepl 120 6196 0 5971 14 0 14 14 0 8 6 lockfpl 104 430 0 426 2 0 2 2 0 8 1 lockfspl 48 130 0 127 1 0 1 1 0 8 0 sessionpl 144 53 0 44 1 0 1 1 0 8 0 pgrppl 48 70 0 53 1 0 1 1 0 8 0 ucredpl 104 942 0 929 1 0 1 1 0 8 0 zombiepl 144 964 0 961 1 0 1 1 0 8 0 processpl 1152 1004 0 961 4 0 4 4 0 8 0 procpl 664 1889 0 1839 6 0 6 6 0 8 1 sosppl 176 7 0 6 1 0 1 1 0 8 0 sockpl 552 1314 0 1283 8 0 8 8 0 8 4 mcl64k 65536 119 0 118 1 0 1 1 0 8 0 mcl8k 8192 11 0 11 1 0 1 1 0 8 1 mcl4k 4096 3298 0 3245 13 0 13 13 0 8 5 mcl2k 2048 747 0 741 2 0 2 2 0 8 1 mtagpl 96 58 0 40 2 0 2 2 0 8 1 mbufpl 256 10216 0 10058 18 0 18 18 0 8 5 bufpl 280 6515 0 301 444 0 444 444 0 8 0 anonpl 24 164312 0 156957 90 0 90 90 0 187 28 amapchunkpl 152 25612 0 25133 34 0 34 34 0 158 12 amappl16 200 3139 0 2861 31 4 27 31 0 8 8 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 407 0 406 1 0 1 1 0 8 0 amappl13 176 117 0 107 1 0 1 1 0 8 0 amappl12 168 1243 0 1213 2 0 2 2 0 8 0 amappl11 160 47 0 47 1 0 1 1 0 8 1 amappl10 152 61 0 51 1 0 1 1 0 8 0 amappl9 144 256 0 255 1 0 1 1 0 8 0 amappl8 136 151 0 149 1 0 1 1 0 8 0 amappl7 128 145 0 133 1 0 1 1 0 8 0 amappl6 120 151 0 149 1 0 1 1 0 8 0 amappl5 112 102 0 94 1 0 1 1 0 8 0 amappl4 104 306 0 290 1 0 1 1 0 8 0 amappl3 96 5139 0 5031 4 0 4 4 0 8 0 amappl2 88 541 0 487 2 0 2 2 0 8 0 amappl1 80 12183 0 11634 16 0 16 16 0 8 3 amappl 88 7206 0 7049 5 0 5 5 0 92 0 uvmvnodes 80 119 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 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 49 0 1 1 0 1 1 0 8 0 uaddrrnd 24 989 0 960 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 989 0 960 1 0 1 1 0 8 0 vmmpekpl 168 9299 0 9271 2 0 2 2 0 8 0 vmmpepl 168 69841 0 67803 107 0 107 107 0 357 7 vmsppl 368 988 0 960 4 0 4 4 0 8 1 rwobjpl 40 21040 0 19775 17 0 17 17 0 8 0 pdppl 4096 1984 0 1920 98 32 66 82 0 8 2 pvpl 32 450513 0 435851 190 0 190 190 0 265 33 pmappl 216 988 0 960 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 371 0 32 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff838acd00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838acd00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003a8ebb50) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003a8ebb50) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003a8ebb50) 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(ffff80003a8ebc20) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003a8ebc20) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x177cb7e6e80, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff838acd00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838acd00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003a8ebb50) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003a8ebb50) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003a8ebb50) 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(ffff80003a8ebc20) at ast+0x13d mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003a8ebc20) at ast+0x13d sys/arch/amd64/amd64/trap.c:747 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x177cb7e6e80, count: -6