kernel: protection fault trap, code=0 Stopped at done_flush+0x38: movl %eax,%dr6 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff80002e5141b0) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4564 vmmioctl(a00,c0205602,ffff80002e5141b0,1,ffff8000213122b0) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd8075dccd88,c0205602,ffff80002e5141b0,1,fffffd807f7d7270,ffff8000213122b0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806e595140,c0205602,ffff80002e5141b0,ffff8000213122b0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000213122b0,ffff80002e5142c8,ffff80002e514310) at sys_ioctl+0x4a2 syscall(ffff80002e514390) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e514390) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x17fc081e650, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff80002e49a648 rbp 0xffff80002e513f00 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xfffffffffffffffd r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0x554f3112d7c3bb53 r11 0x5b18243887fa3c36 r12 0xffff80002e49a3a0 r13 0xffffffff8296aff0 cpu_info_full_primary+0x1ff0 r14 0xffff80002e49a000 r15 0xffff80002e5141b0 rip 0xffffffff823945b0 done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff80002e513d56 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.6) pid=37177 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800026dc3ce0,0xffff800021312aa0 process=0xffff80002129b618 user=0xffff80002e50f000, vmspace=0xfffffd8062546b88 estcpu=32, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12306 244926 88724 0 2 0 syz-executor.1 12306 493646 88724 0 2 0x4000000 syz-executor.1 35514 451695 77001 0 2 0 syz-executor.5 35514 94480 77001 0 3 0x4000080 fsleep syz-executor.5 69056 185181 74634 0 2 0 syz-executor.6 *69056 37177 74634 0 7 0x4000000 syz-executor.6 34752 489118 98002 0 2 0 syz-executor.7 34752 388577 98002 0 3 0x4000080 fsleep syz-executor.7 50580 285028 36037 0 2 0 syz-executor.3 50580 39381 36037 0 3 0x4000080 fsleep syz-executor.3 88724 355683 85109 0 3 0x82 nanoslp syz-executor.1 36037 238215 85109 0 3 0x82 nanoslp syz-executor.3 78668 196443 85109 0 3 0x82 nanoslp syz-executor.4 77001 456674 85109 0 3 0x82 nanoslp syz-executor.5 68847 98748 85109 0 3 0x82 nanoslp syz-executor.0 13149 230325 85109 0 2 0x2 syz-executor.2 74634 142097 85109 0 3 0x82 nanoslp syz-executor.6 81802 224748 1 0 3 0x100083 ttyin getty 75662 369352 0 0 3 0x14200 acct acct 98002 303149 85109 0 3 0x82 nanoslp syz-executor.7 85639 307611 0 0 3 0x14200 bored sosplice 85109 103555 20595 0 3 0x82 thrsleep syz-fuzzer 85109 121543 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 446543 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 509077 20595 0 3 0x4000082 wait syz-fuzzer 85109 222355 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 455414 20595 0 3 0x4000082 wait syz-fuzzer 85109 200842 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 2449 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 39422 20595 0 3 0x4000082 wait syz-fuzzer 85109 197055 20595 0 3 0x4000082 kqread syz-fuzzer 85109 147160 20595 0 3 0x4000082 wait syz-fuzzer 85109 318045 20595 0 3 0x4000082 wait syz-fuzzer 85109 216748 20595 0 3 0x4000082 wait syz-fuzzer 85109 277291 20595 0 3 0x4000082 thrsleep syz-fuzzer 85109 498268 20595 0 3 0x4000082 wait syz-fuzzer 85109 129523 20595 0 3 0x4000082 wait syz-fuzzer 20595 273812 5898 0 3 0x10008a sigsusp ksh 5898 506418 39884 0 3 0x9a kqread sshd 39884 264893 1 0 3 0x88 kqread sshd 14250 119576 60226 74 3 0x1100092 bpf pflogd 60226 358600 1 0 3 0x80 netio pflogd 61033 108241 62743 73 3 0x1100090 kqread syslogd 62743 483901 1 0 3 0x100082 netio syslogd 55071 54313 1 0 3 0x100080 kqread resolvd 85502 203841 73408 77 3 0x100092 kqread dhcpleased 5240 103598 73408 77 3 0x100092 kqread dhcpleased 73408 523837 1 0 3 0x80 kqread dhcpleased 90456 502929 0 0 3 0x14200 bored smr 34125 36887 0 0 2 0x14200 zerothread 65778 403838 0 0 3 0x14200 aiodoned aiodoned 59147 249896 0 0 3 0x14200 syncer update 7859 12996 0 0 3 0x14200 cleaner cleaner 60248 396958 0 0 3 0x14200 reaper reaper 57457 386755 0 0 3 0x14200 pgdaemon pagedaemon 63648 227970 0 0 3 0x14200 bored viomb 9211 80282 0 0 3 0x40014200 acpi0 acpi0 52569 204732 0 0 7 0x40014200 idle1 29127 112524 0 0 3 0x14200 bored softnet 30238 113973 0 0 3 0x14200 bored softnet 83348 382870 0 0 3 0x14200 bored softnet 74813 401489 0 0 3 0x14200 bored softnet 72117 205915 0 0 3 0x14200 bored systqmp 80880 441684 0 0 3 0x14200 bored systq 46236 37533 0 0 3 0x40014200 bored softclock 56254 422490 0 0 3 0x40014200 idle0 1 13079 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10250 6504K 8172K 78643K 59544 0 pcb 13 22K 27K 78643K 4816 0 rtable 196 17K 19K 78643K 7410 0 ifaddr 278 70K 74K 78643K 2834 0 sysctl 3 1K 2K 78643K 16 0 counters 54 35K 36K 78643K 2170 0 ioctlops 0 0K 6K 78643K 13269 0 iov 0 0K 28K 78643K 3759 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1766 110K 111K 78643K 18934 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 376 0 VM map 2 1K 1K 78643K 2 0 sem 20 28K 48K 78643K 403 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 85K 78643K 33063 0 sigio 0 0K 0K 78643K 542 0 proc 72 91K 116K 78643K 4932 0 subproc 104 6K 6K 78643K 1555 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 4 0K 0K 78643K 1387 0 in_multi 67 4K 7K 78643K 2350 0 ether_multi 2 0K 0K 78643K 191 0 mrt 1 0K 0K 78643K 126 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 2K 78643K 7024 0 pfkey data 0 0K 0K 78643K 45 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 920 2733K 2734K 78643K 183391 0 UVM aobj 130 4K 4K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 686 0 NDP 16 0K 2K 78643K 775 0 temp 145 4734K 5760K 78643K 258252 0 kqueue 14 22K 34K 78643K 6743 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 1649 0 1644 20 19 1 3 0 8 0 rtentry 112 2518 0 2451 5 2 3 4 0 8 0 unpcb 144 24684 0 24664 266 265 1 10 0 8 0 syncache 296 94 0 94 28 28 0 1 0 8 0 tcpqe 32 153 0 153 11 11 0 1 0 8 0 tcpcb 768 8016 0 8012 325 319 6 15 0 8 5 arp 120 414 0 402 1 0 1 1 0 8 0 inpcb 368 25403 0 25392 482 476 6 20 0 8 5 ip6q 72 3 0 3 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 451 0 435 1 0 1 1 0 8 0 pkpcb 40 196 0 196 14 14 0 1 0 8 0 kcovpl 48 119 0 111 1 0 1 1 0 8 0 ppxss 1256 731 0 731 55 54 1 1 0 8 1 pppxif 1704 432 0 432 36 36 0 1 0 8 0 pfstscr 40 7 0 7 3 3 0 1 0 8 0 pffrag 232 107 0 107 16 16 0 1 0 482 0 pffrnode 88 107 0 107 16 16 0 1 0 8 0 pffrent 40 450 0 450 16 16 0 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 47 0 36 3 2 1 2 0 8 0 pfanchor 1280 7 0 5 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 49 0 47 1 0 1 1 0 8 0 pfstkey 120 63 0 61 1 0 1 1 0 8 0 pfstate 336 56 0 54 3 2 1 3 0 8 0 pfrule 1360 196 0 170 4 1 3 3 0 8 0 rttmr 136 36 0 36 12 12 0 1 0 8 0 art_heap8 4096 23 0 22 15 14 1 3 0 8 0 art_heap4 256 10546 0 10227 100 76 24 30 0 8 0 art_table 32 10569 0 10249 4 0 4 4 0 8 0 art_node 16 2442 0 2384 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 381 0 363 1 0 1 1 0 8 0 shmpl 112 134 0 7 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 46063 0 44466 101 0 101 101 0 8 0 ffsino 272 46063 0 44466 107 0 107 107 0 8 0 nchpl 144 89571 0 89027 63 39 24 63 0 8 0 rtmask 32 18 0 18 7 6 1 1 0 8 1 uvmvnodes 80 8641 0 0 177 0 177 177 0 8 0 vnodes 216 8641 0 0 481 0 481 481 0 8 0 namei 1024 353768 0 353767 30 29 1 2 0 8 0 percpumem 16 1097 0 1058 1 0 1 1 0 8 0 vcpupl 2048 390 0 1 49 0 49 49 0 8 0 vmpool 568 472 0 83 28 0 28 28 0 8 0 pfiaddrpl 120 33 0 16 1 0 1 1 0 8 0 kstatmem 264 942 0 910 4 1 3 3 0 8 0 scsiplug 72 226 0 226 7 7 0 1 0 8 0 scxspl 216 285850 0 285850 33 32 1 8 0 8 1 plimitpl 152 3035 0 3019 1 0 1 1 0 8 0 sigapl 424 33181 0 33132 9 3 6 8 0 8 0 futexpl 64 340422 0 340419 19 18 1 1 0 8 0 knotepl 120 1931 0 0 16 2 14 16 0 8 0 kqueuepl 216 69015 0 69002 398 393 5 17 0 8 4 pipepl 320 6516 0 6487 186 183 3 11 0 8 0 fdescpl 496 33137 0 33109 9 5 4 5 0 8 0 filepl 152 310317 0 310053 558 543 15 31 0 8 3 lockfpl 104 10631 0 10628 21 20 1 2 0 8 0 lockfspl 48 2884 0 2881 1 0 1 1 0 8 0 sessionpl 144 141 0 124 1 0 1 1 0 8 0 pgrppl 48 251 0 234 1 0 1 1 0 8 0 ucredpl 104 25667 0 25641 1 0 1 1 0 8 0 zombiepl 144 33134 0 33132 5 4 1 1 0 8 0 processpl 1064 33181 0 33132 5 1 4 5 0 8 0 procpl 672 86004 0 85935 47 40 7 10 0 8 0 srpgc 96 140 0 140 35 35 0 1 0 8 0 sosppl 168 176 0 176 34 34 0 1 0 8 0 sockpl 488 52119 0 52083 1161 1152 9 36 0 8 4 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 730 0 0 45 17 28 45 0 8 0 mtagpl 96 2125 0 0 28 7 21 21 0 8 0 mbufpl 256 7458 0 0 426 0 426 426 0 8 0 bufpl 288 53128 0 44487 618 0 618 618 0 8 0 anonpl 24 6438728 0 6420131 597 390 207 267 0 186 73 amapchunkpl 152 544196 0 543412 253 215 38 91 0 158 0 amappl16 200 89494 0 88716 315 272 43 65 0 8 0 amappl15 192 4238 0 4225 2 1 1 2 0 8 0 amappl14 184 2037 0 2025 1 0 1 1 0 8 0 amappl13 176 6316 0 6310 1 0 1 1 0 8 0 amappl12 168 2738 0 2734 1 0 1 1 0 8 0 amappl11 160 3404 0 3390 1 0 1 1 0 8 0 amappl10 152 4009 0 3999 1 0 1 1 0 8 0 amappl9 144 7782 0 7772 2 1 1 1 0 8 0 amappl8 136 8513 0 8300 8 0 8 8 0 8 0 amappl7 128 5833 0 5808 1 0 1 1 0 8 0 amappl6 120 7916 0 7881 2 0 2 2 0 8 0 amappl5 112 28896 0 28878 1 0 1 1 0 8 0 amappl4 104 10183 0 10132 4 2 2 2 0 8 0 amappl3 96 99675 0 99617 2 0 2 2 0 8 0 amappl2 88 41111 0 41032 3 1 2 3 0 8 0 amappl1 80 773918 0 773148 28 10 18 23 0 8 0 amappl 88 180183 0 179790 10 0 10 10 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 136 0 7 3 0 3 3 0 8 0 uaddrrnd 24 33609 0 33192 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 33609 0 33192 3 0 3 3 0 8 0 vmmpekpl 168 215591 0 215477 6 0 6 6 0 8 0 vmmpepl 168 3234015 0 3230103 867 671 196 218 0 357 6 vmsppl 368 33608 0 33192 45 6 39 39 0 8 1 rwobjpl 56 766181 0 755061 208 49 159 163 0 8 0 pdppl 4096 67225 0 66773 1832 1374 458 458 0 8 6 pvpl 32 13514197 0 13489438 1259 858 401 464 0 265 171 pmappl 248 33608 0 33192 33 6 27 27 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3928 0 2052 56 2 54 54 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff80002e5141b0) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4564 vmmioctl(a00,c0205602,ffff80002e5141b0,1,ffff8000213122b0) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd8075dccd88,c0205602,ffff80002e5141b0,1,fffffd807f7d7270,ffff8000213122b0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806e595140,c0205602,ffff80002e5141b0,ffff8000213122b0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000213122b0,ffff80002e5142c8,ffff80002e514310) at sys_ioctl+0x4a2 syscall(ffff80002e514390) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e514390) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x17fc081e650, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020dd8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -5