uvm_fault(0xfffuvm_fault(0xffffffff83a1e4e0, 0xffff800029ef6000, 0, 2) -> e kernel: page fault trap, code=2 Stopped at kcov_remote_enter+0x122: movq $0,0(%rcx) TID PID UID PRFLAGS PFLAGS CPU COMMAND *432084 20784 0 0x2 0x1 0 syz-executor kcov_remote_enter(0,ffff80002a7ac490) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838a9e40,ffff80002a777a98) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a777a98,0) 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 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(ffffffff833becb4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347b26c) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a858c60,ffff800029a52188) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a858c60) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 end trace frame: 0xffff80002a858ce0, 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(0xffffffff83a1e4e0, 0xffff800029ef6000, 0, 2) -> e ddb> trace kcov_remote_enter(0,ffff80002a7ac490) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838a9e40,ffff80002a777a98) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a777a98,0) 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 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(ffffffff833becb4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347b26c) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a858c60,ffff800029a52188) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a858c60) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ffs2_balloc(fffffd806cde0a00,f7316,50,fffffd8007ffd7b8,1,ffff80002a858ed8) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a858f60) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806be6da30,ffff80002a859010,3,fffffd8007ffd7b8) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a747c90,fffffd806be6da30,fffffd8007ffd7b8,ffff80002a8590e0,ffff80002a8590c0) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a859250) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a859250) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70afdd14f7e0, count: -22 ddb> show registers rdi 0 rsi 0xffff800000c16c00 rbp 0xffff80002a8586f0 rbx 0xffff80002a7ac490 rdx 0xffff80002a747c90 rcx 0xffff800029ef6000 rax 0xfffffd806cb65ed0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfbc94c5e597267a7 r11 0x84211074dd06043e r12 0xffffffff819a2b90 endtsleep r13 0xffff80002a777a00 r14 0xffff80002a7ac490 r15 0 rip 0xffffffff81dda402 kcov_remote_enter+0x122 cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a8586d0 ss 0x10 kcov_remote_enter+0x122: movq $0,0(%rcx) ddb> show proc PROC (syz-executor) tid=432084 pid=20784 tcnt=1 stat=onproc flags process=2 proc=1 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a746f98,0xffff80002a7462b0 process=0xffff80002a7ae410 user=0xffff80002a854000, vmspace=0xfffffd80722cd2e8 estcpu=36, cpticks=17, pctcpu=0.0, user=0, sys=16, intr=1 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18684 426675 12293 0 2 0 syz-executor 18684 27403 12293 0 3 0x4000080 fsleep syz-executor 51424 73631 55368 60929 3 0x90 nanoslp syz-executor 51424 25865 55368 60929 3 0x4000090 kqread syz-executor 51424 440874 55368 60929 3 0x4000090 fsleep syz-executor 69525 307850 11129 0 2 0 syz-executor 69525 198714 11129 0 3 0x4000080 fsleep syz-executor 61350 238157 95076 0 2 0 syz-executor 61350 346793 95076 0 2 0x4000000 syz-executor 89252 2016 1808 0 2 0 syz-executor 89252 402973 1808 0 3 0x4000080 fsleep syz-executor 89252 291274 1808 0 3 0x4000080 fsleep syz-executor 93821 508287 79494 0 3 0x80 nanoslp syz-executor 93821 91269 79494 0 3 0x4000080 lockf syz-executor 93821 392851 79494 0 3 0x4000080 fsleep syz-executor 11883 197024 78293 0 3 0x80 nanoslp syz-executor 11883 449488 78293 0 3 0x4000080 netcon syz-executor 11883 74565 78293 0 3 0x4000080 fsleep syz-executor 72899 402195 0 0 3 0x14200 acct acct 11129 375174 71242 0 3 0x82 nanoslp syz-executor 23721 473478 0 0 3 0x14280 nfsidl nfsio 83493 344569 0 0 3 0x14280 nfsidl nfsio 95163 404920 0 0 3 0x14280 nfsidl nfsio 12814 368898 0 0 3 0x14280 nfsidl nfsio 38768 113518 0 0 3 0x14280 nfsidl nfsio 22055 6196 0 0 3 0x14280 nfsidl nfsio 12351 193947 0 0 3 0x14280 nfsidl nfsio 29776 391644 0 0 3 0x14280 nfsidl nfsio 97764 182126 0 0 3 0x14280 nfsidl nfsio 58870 57680 0 0 3 0x14280 nfsidl nfsio 72175 127713 0 0 3 0x14280 nfsidl nfsio 70344 209192 0 0 3 0x14280 nfsidl nfsio 6264 111160 0 0 3 0x14280 nfsidl nfsio 99334 39358 0 0 3 0x14280 nfsidl nfsio 47899 429266 0 0 3 0x14280 nfsidl nfsio 86634 404830 0 0 3 0x14280 nfsidl nfsio 93399 187505 0 0 3 0x14280 nfsidl nfsio 20057 272451 0 0 3 0x14280 nfsidl nfsio 24728 110358 0 0 3 0x14280 nfsidl nfsio 1531 377149 0 0 3 0x14280 nfsidl nfsio 12293 413010 71242 0 3 0x82 nanoslp syz-executor 1808 390509 71242 0 3 0x82 nanoslp syz-executor *20784 432084 71242 0 7 0x3 syz-executor 79494 202306 71242 0 3 0x82 nanoslp syz-executor 55368 39598 71242 0 3 0x82 nanoslp syz-executor 78293 440423 71242 0 3 0x82 nanoslp syz-executor 95076 314118 71242 0 3 0x82 nanoslp syz-executor 71242 312823 97647 0 3 0x82 kqread syz-executor 97647 271896 57161 0 3 0x10008a sigsusp ksh 57161 29421 39874 0 3 0x98 kqread sshd-session 39874 508166 34903 0 3 0x92 kqread sshd-session 74435 128085 1 0 3 0x100083 ttyin getty 34903 246083 1 0 3 0x88 kqread sshd 11467 357853 90301 73 3 0x1100090 kqread syslogd 90301 360860 1 0 3 0x100082 sbwait syslogd 26969 74411 1 0 3 0x100080 kqread resolvd 37181 94538 72115 77 3 0x100092 kqread dhcpleased 69009 115318 72115 77 3 0x100092 kqread dhcpleased 72115 449253 1 0 3 0x80 kqread dhcpleased 71505 131046 0 0 3 0x14200 bored smr 84931 204637 0 0 2 0x14200 zerothread 91493 51402 0 0 3 0x14200 aiodoned aiodoned 25268 80508 0 0 3 0x14200 syncer update 21756 259476 0 0 3 0x14200 cleaner cleaner 7416 213510 0 0 3 0x14200 reaper reaper 86068 205717 0 0 3 0x14200 pgdaemon pagedaemon 23637 449914 0 0 3 0x14200 bored viomb 80629 268734 0 0 3 0x40014200 acpi0 acpi0 613 241801 0 0 3 0x14200 bored softnet0 9049 107228 0 0 3 0x14200 bored systqmp 62930 354805 0 0 3 0x14200 bored systq 90325 520515 0 0 3 0x40014200 tmoslp softclock 91213 416338 0 0 3 0x40014200 idle0 1 283754 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 11041 12122K 12723K 166960K 12982 0 pcb 51 16K 16K 166960K 258 0 rtable 246 11K 12K 166960K 1516 0 pf 36 14K 20K 166960K 1178 0 ifaddr 41 7K 8K 166960K 76 0 ifgroup 47 1K 2K 166960K 106 0 sysctl 4 1K 9K 166960K 16 0 counters 33 17K 18K 166960K 59 0 ioctlops 0 0K 4K 166960K 502 0 iov 0 0K 16K 166960K 86 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1321 83K 84K 166960K 2257 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 64 0 dirhash 12 2K 2K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 1071 0 sigio 0 0K 0K 166960K 12 0 proc 60 59K 108K 166960K 579 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 171 0 in_multi 96 6K 7K 166960K 145 0 ether_multi 1 0K 0K 166960K 35 0 mrt 2 0K 0K 166960K 113 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 593 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 227 151K 166K 166960K 10673 0 UVM aobj 114 3K 3K 166960K 118 0 pinsyscall 38 76K 94K 166960K 2188 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 11 0K 2K 166960K 53 0 temp 76 9076K 9140K 166960K 32141 0 kqueue 18 28K 33K 166960K 327 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 120 179 0 174 3 0 3 3 0 8 2 rtentry 136 173 0 72 5 0 5 5 0 8 0 unpcb 144 481 0 466 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 444 0 374 7 0 7 7 0 8 0 arp 96 21 0 3 1 0 1 1 0 8 0 ipq 40 7 0 2 1 0 1 1 0 8 0 ipqe 40 11 0 6 1 0 1 1 0 8 0 inpcb 328 1035 0 925 10 0 10 10 0 8 0 ip6q 72 4 0 1 1 0 1 1 0 8 0 ip6af 40 6 0 2 1 0 1 1 0 8 0 nd6 112 43 0 12 1 0 1 1 0 8 0 pkpcb 40 9 0 9 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 21 0 21 1 0 1 1 0 8 1 pfstscr 40 6 0 4 1 0 1 1 0 8 0 pfrktable 1344 445 0 440 1 0 1 1 0 8 0 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 108 0 102 1 0 1 1 0 8 0 pfstitem 24 4 0 2 1 0 1 1 0 8 0 pfstkey 128 7 0 4 1 0 1 1 0 8 0 pfstate 384 4 0 3 1 0 1 1 0 8 0 pfrule 1360 100 0 99 1 0 1 1 0 8 0 rttmr 136 30 0 30 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 824 0 247 37 0 37 37 0 8 0 art_table 40 825 0 247 6 0 6 6 0 8 0 art_node 32 173 0 81 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 1 1 0 1 1 0 8 0 semapl 112 60 0 50 1 0 1 1 0 8 0 shmpl 112 115 0 4 4 0 4 4 0 8 0 dirhash 1024 63 0 46 3 0 3 3 0 8 0 dino2pl 256 3328 0 1875 92 0 92 92 0 8 0 ffsino 256 3328 0 1875 92 0 92 92 0 8 0 nchpl 144 4665 0 2971 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 3943 0 0 220 0 220 220 0 8 0 namei 1024 15929 0 15929 2 0 2 2 0 8 2 pfiaddrpl 120 142 0 140 1 0 1 1 0 8 0 kstatmem 264 67 0 44 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 19633 0 19633 8 0 8 8 1 8 8 plimitpl 152 337 0 321 1 0 1 1 0 8 0 sigapl 424 1383 0 1320 8 0 8 8 0 8 0 knotepl 120 38594 0 38284 15 4 11 15 0 8 1 kqueuepl 184 440 0 426 3 0 3 3 0 8 2 pipepl 304 156 0 129 3 0 3 3 0 8 0 fdescpl 448 1349 0 1320 5 0 5 5 0 8 1 filepl 120 7632 0 7243 12 0 12 12 0 8 0 lockfpl 104 437 0 432 1 0 1 1 0 8 0 lockfspl 48 159 0 155 1 0 1 1 0 8 0 sessionpl 144 76 0 68 1 0 1 1 0 8 0 pgrppl 48 90 0 74 1 0 1 1 0 8 0 ucredpl 104 1387 0 1375 1 0 1 1 0 8 0 zombiepl 144 1320 0 1320 1 0 1 1 0 8 1 processpl 1152 1383 0 1320 5 0 5 5 0 8 0 procpl 664 2565 0 2491 7 0 7 7 0 8 0 sosppl 176 5 0 5 1 0 1 1 0 8 1 sockpl 552 1759 0 1629 10 0 10 10 0 8 0 mcl64k 65536 131 0 127 1 0 1 1 0 8 0 mcl16k 16384 23 0 23 1 0 1 1 0 8 1 mcl12k 12288 6 0 6 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 131 0 131 1 0 1 1 0 8 1 mcl4k 4096 4011 0 3961 12 0 12 12 0 8 5 mcl2k2 2112 8 0 8 1 0 1 1 0 8 1 mcl2k 2048 1154 0 1147 8 0 8 8 0 8 6 mtagpl 96 17 0 7 1 0 1 1 0 8 0 mbufpl 256 15719 0 15461 38 15 23 38 0 8 5 bufpl 280 6444 0 230 444 0 444 444 0 8 0 anonpl 24 189687 0 186493 45 0 45 45 0 187 14 amapchunkpl 152 35611 0 35130 33 0 33 33 0 158 13 amappl16 200 3483 0 3453 15 3 12 15 0 8 8 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 423 0 422 1 0 1 1 0 8 0 amappl13 176 114 0 104 1 0 1 1 0 8 0 amappl12 168 1589 0 1561 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 60 0 50 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 0 1 1 0 8 1 amappl8 136 108 0 106 1 0 1 1 0 8 0 amappl7 128 143 0 132 1 0 1 1 0 8 0 amappl6 120 163 0 162 1 0 1 1 0 8 0 amappl5 112 89 0 82 1 0 1 1 0 8 0 amappl4 104 260 0 244 1 0 1 1 0 8 0 amappl3 96 7427 0 7316 4 0 4 4 0 8 0 amappl2 88 527 0 471 2 0 2 2 0 8 0 amappl1 80 12829 0 12293 13 0 13 13 0 8 1 amappl 88 9834 0 9671 5 0 5 5 0 92 1 uvmvnodes 80 129 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 8 0 8 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 8 0 8 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 117 0 4 3 0 3 3 0 8 0 uaddrrnd 24 1349 0 1320 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1349 0 1320 1 0 1 1 0 8 0 vmmpekpl 168 10639 0 10602 3 0 3 3 0 8 0 vmmpepl 168 87759 0 85983 91 0 91 91 0 357 11 vmsppl 368 1348 0 1320 4 0 4 4 0 8 1 rwobjpl 40 23923 0 22839 13 0 13 13 0 8 0 pdppl 4096 2704 0 2640 96 30 66 80 0 8 2 pvpl 32 588798 0 579906 117 0 117 117 0 265 25 pmappl 216 1348 0 1320 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 406 0 45 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace kcov_remote_enter(0,ffff80002a7ac490) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838a9e40,ffff80002a777a98) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a777a98,0) 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 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(ffffffff833becb4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347b26c) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a858c60,ffff800029a52188) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a858c60) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ffs2_balloc(fffffd806cde0a00,f7316,50,fffffd8007ffd7b8,1,ffff80002a858ed8) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a858f60) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806be6da30,ffff80002a859010,3,fffffd8007ffd7b8) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a747c90,fffffd806be6da30,fffffd8007ffd7b8,ffff80002a8590e0,ffff80002a8590c0) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a859250) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a859250) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70afdd14f7e0, count: -22 ddb> machine ddbcpu 1 No such command ddb> trace kcov_remote_enter(0,ffff80002a7ac490) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff838a9e40,ffff80002a777a98) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a777a98,0) 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 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(ffffffff833becb4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8347b26c) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a858c60,ffff800029a52188) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a858c60) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ffs2_balloc(fffffd806cde0a00,f7316,50,fffffd8007ffd7b8,1,ffff80002a858ed8) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a858f60) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806be6da30,ffff80002a859010,3,fffffd8007ffd7b8) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a747c90,fffffd806be6da30,fffffd8007ffd7b8,ffff80002a8590e0,ffff80002a8590c0) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80002a747c90,89,0,ffff80002a8591a0) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a859250) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a859250) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70afdd14f7e0, count: -22