kernel: page fault trap, code=10 Stopped at acpi_pdirpa+0x2859a: uvm_fault(0xfffffd80074a2560, 0x3c729, 0, 1) -> e kernel: page fault trap, code=0 Stopped at db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax TID PID UID PRFLAGS PFLAGS CPU COMMAND *123816 29259 0 0x8000000 0x4000000 0 syz-executor.1 db_read_bytes(3c729,1,ffff80002a6bee44) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(3c729,1,0) at db_get_value+0x50 sys/ddb/db_access.c:61 db_disasm(3c729,0) at db_disasm+0x82 db_trap(6,10) at db_trap+0x115 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a6bf0e0) at db_ktrap+0x1ab sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a6bf0e0) at kerntrap+0x130 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0x2859a rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 rt_clone sys/net/route.c:383 [inline] rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 sys/net/route.c:358 route_mpath(ffff80002a6bf488,fffffd8076c686f8,fffffd8076c686f4,0) at route_mpath+0x8b sys/net/route.c:255 in_ouraddr(fffffd8076b77c00,ffff800000e7b800,ffff80002a6bf488) at in_ouraddr+0x98 sys/netinet/ip_input.c:830 ip_input_if(ffff80002a6bf578,ffff80002a6bf584,0,0,ffff800000e7b800) at ip_input_if+0x25e sys/netinet/ip_input.c:486 ipv4_input(ffff800000e7b800,fffffd8076b77c00) at ipv4_input+0x47 sys/netinet/ip_input.c:327 ether_input(ffff800000e7b800,fffffd8076b77c00) at ether_input+0x525 end trace frame: 0xffff80002a6bf6a0, 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(0xfffffd80074a2560, 0x3c729, 0, 1) -> e ddb> trace db_read_bytes(3c729,1,ffff80002a6bee44) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(3c729,1,0) at db_get_value+0x50 sys/ddb/db_access.c:61 db_disasm(3c729,0) at db_disasm+0x82 db_trap(6,10) at db_trap+0x115 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a6bf0e0) at db_ktrap+0x1ab sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a6bf0e0) at kerntrap+0x130 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0x2859a rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 rt_clone sys/net/route.c:383 [inline] rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 sys/net/route.c:358 route_mpath(ffff80002a6bf488,fffffd8076c686f8,fffffd8076c686f4,0) at route_mpath+0x8b sys/net/route.c:255 in_ouraddr(fffffd8076b77c00,ffff800000e7b800,ffff80002a6bf488) at in_ouraddr+0x98 sys/netinet/ip_input.c:830 ip_input_if(ffff80002a6bf578,ffff80002a6bf584,0,0,ffff800000e7b800) at ip_input_if+0x25e sys/netinet/ip_input.c:486 ipv4_input(ffff800000e7b800,fffffd8076b77c00) at ipv4_input+0x47 sys/netinet/ip_input.c:327 ether_input(ffff800000e7b800,fffffd8076b77c00) at ether_input+0x525 tun_dev_write(5d01,ffff80002a6bf8f8,0,2) at tun_dev_write+0x209 sys/net/if_tun.c:914 spec_write(ffff80002a6bf750) at spec_write+0xd8 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd8059e43cd0,ffff80002a6bf8f8,11,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_write(fffffd80692bcc40,ffff80002a6bf8f8,0) at vn_write+0x157 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a6b79c8,c8,ffff80002a6bf8f8,0,ffff80002a6bf9b0) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375 sys_write(ffff80002a6b79c8,ffff80002a6bfa60,ffff80002a6bf9b0) at sys_write+0x87 sys/kern/sys_generic.c:295 syscall(ffff80002a6bfa60) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4fec30e680, count: -22 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a6bee30 rbx 0x1 rdx 0 rcx 0x28 rax 0xffff80002a6b79c8 r8 0xffff80002a6bef60 r9 0x8080808080808080 r10 0xbdfa7e895c71c0d4 r11 0x61c2abd3b3c97b49 r12 0x1 r13 0x1 r14 0xffff80002a6bee45 r15 0x3c72a acpi_pdirpa+0x2859b rip 0xffffffff824dd5a0 db_read_bytes+0xd0 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002a6bedd0 ss 0x10 db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax ddb> show proc PROC (syz-executor.1) tid=123816 pid=29259 tcnt=3 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a6b7c58,0xffff80002a6b7748 process=0xffff8000375cc880 user=0xffff80002a6ba000, vmspace=0xfffffd80074a2560 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 47252 377636 24175 0 2 0x8000000 syz-executor.3 47252 280645 24175 0 3 0xc000080 fsleep syz-executor.3 78026 214415 87013 0 2 0x8000000 syz-executor.2 78026 497227 87013 0 3 0xc000080 fsleep syz-executor.2 35044 188807 64999 0 2 0x8000000 syz-executor.5 35044 104554 64999 0 3 0xc000080 fsleep syz-executor.5 61040 51095 46941 0 2 0x8000000 syz-executor.4 61040 509370 46941 0 3 0xc000080 fsleep syz-executor.4 29259 97561 97720 0 2 0x8000000 syz-executor.1 *29259 123816 97720 0 7 0xc000000 syz-executor.1 29259 219508 97720 0 3 0xc000080 fsleep syz-executor.1 20590 310543 24720 0 2 0x8000010 syz-executor.0 20590 64895 24720 0 3 0xc000090 fsleep syz-executor.0 20590 448454 24720 0 3 0xc000090 fsleep syz-executor.0 57423 56212 14215 0 2 0x8000000 syz-executor.6 57423 503573 14215 0 3 0xc000080 fsleep syz-executor.6 57423 437266 14215 0 3 0xc000080 fsleep syz-executor.6 78359 441982 59226 0 2 0x8000000 syz-executor.7 78359 127859 59226 0 3 0xc000080 fsleep syz-executor.7 58760 509588 0 0 3 0x14200 acct acct 46324 302762 0 0 3 0x14280 nfsidl nfsio 12534 362028 0 0 3 0x14280 nfsidl nfsio 95131 473833 0 0 3 0x14280 nfsidl nfsio 23989 257500 0 0 3 0x14280 nfsidl nfsio 59408 512166 0 0 3 0x14280 nfsidl nfsio 8989 93114 0 0 3 0x14280 nfsidl nfsio 13842 494862 0 0 3 0x14280 nfsidl nfsio 62576 323988 0 0 3 0x14280 nfsidl nfsio 14426 126706 0 0 3 0x14280 nfsidl nfsio 75971 473023 0 0 3 0x14280 nfsidl nfsio 5973 460890 0 0 3 0x14280 nfsidl nfsio 65547 70090 0 0 3 0x14280 nfsidl nfsio 43818 255146 0 0 3 0x14280 nfsidl nfsio 73628 189936 0 0 3 0x14280 nfsidl nfsio 53240 207606 0 0 3 0x14280 nfsidl nfsio 72426 66812 0 0 3 0x14280 nfsidl nfsio 60564 436878 0 0 3 0x14280 nfsidl nfsio 21987 404589 0 0 3 0x14280 nfsidl nfsio 59036 229948 0 0 3 0x14280 nfsidl nfsio 46533 476348 0 0 3 0x14280 nfsidl nfsio 59226 76124 88495 0 3 0x8000082 nanoslp syz-executor.7 46941 135502 88495 0 3 0x8000082 nanoslp syz-executor.4 87013 430978 88495 0 2 0x8000482 syz-executor.2 97720 118230 88495 0 3 0x8000082 nanoslp syz-executor.1 64999 380276 88495 0 2 0x8000482 syz-executor.5 24175 315359 88495 0 3 0x8000082 nanoslp syz-executor.3 24720 374439 88495 0 3 0x8000082 nanoslp syz-executor.0 14215 91179 88495 0 3 0x8000082 nanoslp syz-executor.6 69883 230038 1 0 3 0x18100083 ttyin getty 70588 156634 0 0 3 0x14200 bored sosplice 88495 363057 48330 0 3 0x1a000082 wait syz-fuzzer 88495 280861 48330 0 3 0x1e000082 thrsleep syz-fuzzer 88495 226400 48330 0 3 0x1e000082 wait syz-fuzzer 88495 65746 48330 0 3 0x1e000082 thrsleep syz-fuzzer 88495 351582 48330 0 3 0x1e000082 wait syz-fuzzer 88495 406442 48330 0 3 0x1e000082 wait syz-fuzzer 88495 98333 48330 0 3 0x1e000082 kqread syz-fuzzer 88495 168202 48330 0 3 0x1e000082 thrsleep syz-fuzzer 88495 261802 48330 0 3 0x1e000082 wait syz-fuzzer 88495 521006 48330 0 3 0x1e000082 thrsleep syz-fuzzer 88495 81979 48330 0 3 0x1e000082 thrsleep syz-fuzzer 88495 227721 48330 0 3 0x1e000082 wait syz-fuzzer 88495 63080 48330 0 3 0x1e000082 wait syz-fuzzer 88495 162451 48330 0 3 0x1e000082 wait syz-fuzzer 48330 10919 54379 0 3 0x810008a sigsusp ksh 54379 278187 44768 0 3 0x1800009a kqread sshd 44768 331584 1 0 3 0x18000088 kqread sshd 6636 9042 27293 73 3 0x19100090 kqread syslogd 27293 287653 1 0 3 0x18100082 sbwait syslogd 89565 333927 1 0 3 0x18100080 kqread resolvd 28788 496150 0 0 3 0x14200 bored smr 69214 500566 0 0 2 0x14200 zerothread 5569 409778 0 0 3 0x14200 aiodoned aiodoned 68163 90609 0 0 3 0x14200 syncer update 51540 480107 0 0 3 0x14200 cleaner cleaner 22273 301815 0 0 3 0x14200 reaper reaper 76036 224213 0 0 3 0x14200 pgdaemon pagedaemon 18834 467366 0 0 3 0x14200 bored viomb 72672 291100 0 0 3 0x40014200 acpi0 acpi0 32684 155202 0 0 3 0x14200 bored softnet3 38401 520200 0 0 3 0x14200 bored softnet2 40941 628 0 0 3 0x14200 bored softnet1 73114 483260 0 0 3 0x14200 bored softnet0 53016 400971 0 0 3 0x14200 bored systqmp 30579 138710 0 0 3 0x14200 bored systq 45991 151643 0 0 2 0x40014200 softclock 82801 371926 0 0 3 0x40014200 idle0 1 512774 0 0 3 0x8080082 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 10170 6421K 6866K 166960K 14233 0 pcb 17 20K 22K 166960K 733 0 rtable 205 8K 10K 166960K 5707 0 pf 33 9K 10K 166960K 474 0 ifaddr 42 12K 13K 166960K 758 0 ifgroup 58 2K 2K 166960K 889 0 sysctl 4 1K 2K 166960K 7 0 counters 32 17K 17K 166960K 236 0 ioctlops 0 0K 2K 166960K 498 0 iov 0 0K 20K 166960K 473 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1464 92K 93K 166960K 5813 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 162 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 580 0 dirhash 12 2K 2K 166960K 78 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 109K 166960K 6312 0 sigio 0 0K 0K 166960K 162 0 proc 53 42K 124K 166960K 5480 0 subproc 104 6K 8K 166960K 2396 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 770 0 in_multi 75 5K 7K 166960K 2039 0 ether_multi 2 0K 0K 166960K 25 0 mrt 2 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 3179 0 pfkey data 0 0K 2K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 276 98K 114K 166960K 49266 0 UVM aobj 131 8K 8K 166960K 141 0 pinsyscall 32 64K 114K 166960K 11853 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 275 0 NDP 13 0K 2K 166960K 551 0 temp 76 6812K 7068K 166960K 158081 0 kqueue 6 10K 26K 166960K 611 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 120 723 0 722 2 0 2 2 0 8 1 rtentry 112 2057 0 1968 4 0 4 4 0 8 0 unpcb 144 3610 0 3604 6 0 6 6 0 8 5 syncache 336 4 0 4 1 0 1 1 0 8 1 sackhl 24 7 0 7 1 0 1 1 0 8 1 tcpqe 32 8 0 8 1 0 1 1 0 8 1 tcpcb 808 1634 0 1629 11 2 9 11 0 8 8 arp 88 393 0 377 1 0 1 1 0 8 0 ipq 40 19 0 18 1 0 1 1 0 8 0 ipqe 40 625 0 624 1 0 1 1 0 8 0 inpcb 352 6556 0 6550 22 13 9 13 0 8 8 nd6 104 530 0 511 1 0 1 1 0 8 0 pkpcb 40 42 0 42 1 0 1 1 0 8 1 kcovpl 48 184 0 176 1 0 1 1 0 8 0 ppxss 1072 10 0 10 1 0 1 1 0 8 1 art_heap8 4096 3 0 1 3 0 3 3 0 8 1 art_heap4 256 7730 0 7363 114 83 31 31 0 8 4 art_table 32 7733 0 7364 4 0 4 4 0 8 0 art_node 16 2047 0 1968 1 0 1 1 0 8 0 sysvmsgpl 40 41 0 32 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 577 0 567 1 0 1 1 0 8 0 shmpl 112 138 0 10 4 0 4 4 0 8 0 dirhash 1024 61 0 44 3 0 3 3 0 8 0 dino2pl 256 8799 0 7269 96 0 96 96 0 8 0 ffsino 240 8799 0 7269 91 0 91 91 0 8 0 nchpl 144 16323 0 14597 66 0 66 66 0 8 1 uvmvnodes 80 9236 0 0 189 0 189 189 0 8 0 vnodes 216 9236 0 0 514 0 514 514 0 8 0 namei 1024 74685 0 74685 3 0 3 3 0 8 3 vcpupl 3904 13 0 0 2 0 2 2 0 8 0 vmpool 664 22 0 9 2 0 2 2 0 8 0 kstatmem 264 434 0 408 2 0 2 2 0 8 0 scsiplug 72 7 0 7 1 0 1 1 0 8 1 scxspl 216 112871 0 112871 8 0 8 8 1 8 8 plimitpl 152 797 0 782 1 0 1 1 0 8 0 sigapl 424 6283 0 6219 8 0 8 8 0 8 0 futexpl 64 72709 0 72699 1 0 1 1 0 8 0 knotepl 120 18056 0 17990 11 0 11 11 0 8 7 kqueuepl 184 1459 0 1453 6 0 6 6 0 8 5 pipepl 288 1898 0 1868 7 0 7 7 0 8 4 fdescpl 432 6242 0 6216 5 0 5 5 0 8 0 filepl 120 41370 0 41143 22 7 15 22 0 8 6 lockfpl 104 1315 0 1313 1 0 1 1 0 8 0 lockfspl 48 523 0 521 1 0 1 1 0 8 0 sessionpl 144 191 0 176 1 0 1 1 0 8 0 pgrppl 48 383 0 368 1 0 1 1 0 8 0 ucredpl 104 6039 0 6027 1 0 1 1 0 8 0 zombiepl 144 6219 0 6219 1 0 1 1 0 8 1 processpl 1072 6283 0 6219 5 0 5 5 0 8 0 procpl 656 11366 0 11278 8 0 8 8 0 8 0 sosppl 168 79 0 79 1 0 1 1 0 8 1 sockpl 504 10982 0 10969 111 101 10 24 0 8 8 mcl64k 65536 21 0 21 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 14 0 14 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 98 0 98 1 0 1 1 0 8 1 mcl4k 4096 24 0 24 1 0 1 1 0 8 1 mcl2k2 2112 2 0 2 1 0 1 1 0 8 1 mcl2k 2048 53440 0 53337 42 21 21 36 0 8 5 mtagpl 96 45 0 45 1 0 1 1 0 8 1 mbufpl 256 150369 0 150210 226 201 25 74 0 8 8 bufpl 280 16646 0 7409 660 0 660 660 0 8 0 anonpl 24 816528 0 810810 68 0 68 68 0 188 5 amapchunkpl 152 161173 0 160488 43 0 43 43 0 158 11 amappl16 200 15911 0 15788 56 40 16 19 0 8 8 amappl15 192 13 0 13 1 0 1 1 0 8 1 amappl14 184 803 0 793 2 0 2 2 0 8 1 amappl13 176 40 0 40 1 0 1 1 0 8 1 amappl12 168 9315 0 9288 3 0 3 3 0 8 1 amappl11 160 106 0 102 1 0 1 1 0 8 0 amappl10 152 213 0 203 1 0 1 1 0 8 0 amappl9 144 182 0 182 1 0 1 1 0 8 1 amappl8 136 384 0 354 2 0 2 2 0 8 0 amappl7 128 65 0 51 1 0 1 1 0 8 0 amappl6 120 2624 0 2613 2 0 2 2 0 8 0 amappl5 112 819 0 810 1 0 1 1 0 8 0 amappl4 104 1683 0 1659 2 0 2 2 0 8 1 amappl3 96 28867 0 28783 3 0 3 3 0 8 0 amappl2 88 7076 0 7020 4 0 4 4 0 8 1 amappl1 80 38893 0 38491 22 3 19 22 0 8 8 amappl 88 47323 0 47127 6 0 6 6 0 92 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 128 253 0 253 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 140 0 10 3 0 3 3 0 8 0 uaddrrnd 24 6264 0 6225 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6264 0 6225 1 0 1 1 0 8 0 vmmpekpl 168 51650 0 51585 4 0 4 4 0 8 0 vmmpepl 168 428851 0 427146 111 0 111 111 0 357 29 vmsppl 344 6263 0 6225 5 0 5 5 0 8 0 rwobjpl 24 108716 0 98426 64 0 64 64 0 8 0 pdppl 4096 12534 0 12463 511 440 71 92 0 8 0 pvpl 32 2395431 0 2383958 361 17 344 361 0 265 215 pmappl 216 6263 0 6225 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1226 0 848 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_read_bytes(3c729,1,ffff80002a6bee44) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(3c729,1,0) at db_get_value+0x50 sys/ddb/db_access.c:61 db_disasm(3c729,0) at db_disasm+0x82 db_trap(6,10) at db_trap+0x115 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a6bf0e0) at db_ktrap+0x1ab sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a6bf0e0) at kerntrap+0x130 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0x2859a rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 rt_clone sys/net/route.c:383 [inline] rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 sys/net/route.c:358 route_mpath(ffff80002a6bf488,fffffd8076c686f8,fffffd8076c686f4,0) at route_mpath+0x8b sys/net/route.c:255 in_ouraddr(fffffd8076b77c00,ffff800000e7b800,ffff80002a6bf488) at in_ouraddr+0x98 sys/netinet/ip_input.c:830 ip_input_if(ffff80002a6bf578,ffff80002a6bf584,0,0,ffff800000e7b800) at ip_input_if+0x25e sys/netinet/ip_input.c:486 ipv4_input(ffff800000e7b800,fffffd8076b77c00) at ipv4_input+0x47 sys/netinet/ip_input.c:327 ether_input(ffff800000e7b800,fffffd8076b77c00) at ether_input+0x525 tun_dev_write(5d01,ffff80002a6bf8f8,0,2) at tun_dev_write+0x209 sys/net/if_tun.c:914 spec_write(ffff80002a6bf750) at spec_write+0xd8 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd8059e43cd0,ffff80002a6bf8f8,11,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_write(fffffd80692bcc40,ffff80002a6bf8f8,0) at vn_write+0x157 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a6b79c8,c8,ffff80002a6bf8f8,0,ffff80002a6bf9b0) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375 sys_write(ffff80002a6b79c8,ffff80002a6bfa60,ffff80002a6bf9b0) at sys_write+0x87 sys/kern/sys_generic.c:295 syscall(ffff80002a6bfa60) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4fec30e680, count: -22 ddb> machine ddbcpu 1 No such command ddb> trace db_read_bytes(3c729,1,ffff80002a6bee44) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85 db_get_value(3c729,1,0) at db_get_value+0x50 sys/ddb/db_access.c:61 db_disasm(3c729,0) at db_disasm+0x82 db_trap(6,10) at db_trap+0x115 sys/ddb/db_trap.c:71 db_ktrap(6,10,ffff80002a6bf0e0) at db_ktrap+0x1ab sys/arch/amd64/amd64/db_interface.c:151 kerntrap(ffff80002a6bf0e0) at kerntrap+0x130 sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b acpi_pdirpa() at acpi_pdirpa+0x2859a rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 rt_clone sys/net/route.c:383 [inline] rt_match(ffff80002a6bf4a0,ffff80002a6bf4bc,1,0) at rt_match+0xc3 sys/net/route.c:358 route_mpath(ffff80002a6bf488,fffffd8076c686f8,fffffd8076c686f4,0) at route_mpath+0x8b sys/net/route.c:255 in_ouraddr(fffffd8076b77c00,ffff800000e7b800,ffff80002a6bf488) at in_ouraddr+0x98 sys/netinet/ip_input.c:830 ip_input_if(ffff80002a6bf578,ffff80002a6bf584,0,0,ffff800000e7b800) at ip_input_if+0x25e sys/netinet/ip_input.c:486 ipv4_input(ffff800000e7b800,fffffd8076b77c00) at ipv4_input+0x47 sys/netinet/ip_input.c:327 ether_input(ffff800000e7b800,fffffd8076b77c00) at ether_input+0x525 tun_dev_write(5d01,ffff80002a6bf8f8,0,2) at tun_dev_write+0x209 sys/net/if_tun.c:914 spec_write(ffff80002a6bf750) at spec_write+0xd8 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd8059e43cd0,ffff80002a6bf8f8,11,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 vn_write(fffffd80692bcc40,ffff80002a6bf8f8,0) at vn_write+0x157 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80002a6b79c8,c8,ffff80002a6bf8f8,0,ffff80002a6bf9b0) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375 sys_write(ffff80002a6b79c8,ffff80002a6bfa60,ffff80002a6bf9b0) at sys_write+0x87 sys/kern/sys_generic.c:295 syscall(ffff80002a6bfa60) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4fec30e680, count: -22