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(ffff800024739ba0) at vm_run+0x169 vmmioctl(a00,c0205602,ffff800024739ba0,1,ffff8000212bf010) at vmmioctl+0x2a1 sys/dev/vmm/vmm.c:242 VOP_IOCTL(fffffd806e972008,c0205602,ffff800024739ba0,1,fffffd807f7d7680,ffff8000212bf010) at VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807c681e58,c0205602,ffff800024739ba0,ffff8000212bf010) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000212bf010,ffff800024739cb0,ffff800024739d00) at sys_ioctl+0x4a2 syscall(ffff800024739d80) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800024739d80) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5630c708c90, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff800021289e50 rbp 0xffff8000247398f0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xffffffffffffffff r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0x2c32fd90221385ae r11 0xdda5b3f63cc9bac8 r12 0xffff800021289ba8 r13 0xffffffff82c52ff0 cpu_info_full_primary+0x1ff0 r14 0xffff800021289800 r15 0xffff800024739ba0 rip 0xffffffff8201d27b done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff800024739746 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.2) tid=398354 pid=15854 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000212beac0,0xffff8000212bf2c8 process=0xffff800021267688 user=0xffff800024734000, vmspace=0xfffffd80654a00b8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 326 22210 66446 0 2 0 syz-executor.6 326 252999 66446 0 3 0x4000080 fsleep syz-executor.6 1706 291413 3861 0 2 0 syz-executor.5 1706 300792 3861 0 3 0x4000080 fsleep syz-executor.5 15854 259143 380 0 2 0 syz-executor.2 *15854 398354 380 0 7 0x4000000 syz-executor.2 92433 334997 11310 0 2 0 syz-executor.7 92433 15494 11310 0 3 0x4000080 fifor syz-executor.7 91415 394104 13428 0 2 0 syz-executor.1 91415 475324 13428 0 3 0x4000080 fsleep syz-executor.1 72844 353461 55863 0 3 0x80 nanoslp syz-executor.0 72844 136023 55863 0 3 0x4000080 netio syz-executor.0 72844 158134 55863 0 3 0x4000080 fsleep syz-executor.0 84948 228826 32519 0 3 0x82 nanoslp syz-executor.3 67188 111729 0 0 3 0x14200 acct acct 55863 197112 32519 0 3 0x82 nanoslp syz-executor.0 77903 119944 1 0 3 0x100083 ttyin getty 380 241762 32519 0 3 0x82 nanoslp syz-executor.2 3861 120050 32519 0 3 0x82 nanoslp syz-executor.5 11310 165624 32519 0 3 0x82 nanoslp syz-executor.7 96408 513489 32519 0 3 0x82 nanoslp syz-executor.4 27246 491362 0 0 3 0x14200 bored sosplice 33252 440260 3725 0 3 0x100082 netio arp 3725 323287 1 0 3 0x10008a sigsusp sh 66446 193734 32519 0 3 0x82 nanoslp syz-executor.6 13428 229806 32519 0 3 0x82 nanoslp syz-executor.1 32519 53199 88438 0 3 0x2000082 wait syz-fuzzer 32519 89551 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 381426 88438 0 3 0x6000082 wait syz-fuzzer 32519 264978 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 345587 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 166211 88438 0 3 0x6000082 wait syz-fuzzer 32519 88585 88438 0 3 0x6000082 wait syz-fuzzer 32519 153458 88438 0 3 0x6000082 wait syz-fuzzer 32519 166541 88438 0 3 0x6000082 wait syz-fuzzer 32519 440145 88438 0 3 0x6000082 kqread syz-fuzzer 32519 431193 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 447183 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 497729 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 10519 88438 0 3 0x6000082 wait syz-fuzzer 32519 189962 88438 0 3 0x6000082 thrsleep syz-fuzzer 32519 216099 88438 0 3 0x6000082 wait syz-fuzzer 88438 268567 97363 0 3 0x10008a sigsusp ksh 97363 375998 65445 0 3 0x9a kqread sshd 65445 322431 1 0 3 0x88 kqread sshd 75126 207654 79129 74 3 0x1100092 bpf pflogd 79129 33940 1 0 3 0x80 netio pflogd 93249 43 68102 73 3 0x1100090 kqread syslogd 68102 313116 1 0 3 0x100082 netio syslogd 55574 328437 1 0 3 0x100080 kqread resolvd 73060 1754 28648 77 3 0x100092 kqread dhcpleased 58032 274002 28648 77 3 0x100092 kqread dhcpleased 28648 348284 1 0 3 0x80 kqread dhcpleased 2104 394740 0 0 3 0x14200 bored smr 95674 306715 0 0 2 0x14200 zerothread 70217 458023 0 0 3 0x14200 aiodoned aiodoned 688 162028 0 0 3 0x14200 syncer update 16362 89723 0 0 3 0x14200 cleaner cleaner 79920 290071 0 0 3 0x14200 reaper reaper 63799 100507 0 0 3 0x14200 pgdaemon pagedaemon 99039 86573 0 0 3 0x14200 bored viomb 5328 360693 0 0 3 0x40014200 acpi0 acpi0 91089 402582 0 0 7 0x40014200 idle1 33234 42505 0 0 3 0x14200 bored softnet3 46816 179719 0 0 3 0x14200 bored softnet2 5564 294475 0 0 3 0x14200 bored softnet1 26090 428525 0 0 3 0x14200 bored softnet0 95069 414440 0 0 3 0x14200 bored systqmp 64496 92645 0 0 3 0x14200 bored systq 1759 218774 0 0 3 0x14200 tmoslp softclockmp 30826 84428 0 0 3 0x40014200 tmoslp softclock 71618 209053 0 0 3 0x40014200 idle0 1 174436 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 15854 (syz-executor.2) thread 0xffff8000212bf010 (398354) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10248 6887K 18775K 78643K 62114 0 pcb 78 18K 18K 78643K 1650 0 rtable 258 15K 16K 78643K 1397 0 pf 35 10K 10K 78643K 264 0 ifaddr 46 16K 17K 78643K 194 0 ifgroup 60 2K 2K 78643K 426 0 sysctl 4 1K 2K 78643K 15 0 counters 62 36K 36K 78643K 256 0 ioctlops 0 0K 4K 78643K 15162 0 iov 0 0K 32K 78643K 5287 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1583 99K 99K 78643K 17485 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 462 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 6013 0 dirhash 12 2K 2K 78643K 75 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 89K 78643K 38031 0 sigio 0 0K 0K 78643K 422 0 proc 71 103K 140K 78643K 1845 0 subproc 117 7K 7K 78643K 312 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 455 0 in_multi 99 7K 7K 78643K 397 0 ether_multi 1 0K 0K 78643K 7 0 mrt 6 0K 0K 78643K 17 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 169 758K 758K 78643K 169 0 exec 0 0K 1K 78643K 11215 0 pfkey data 0 0K 1K 78643K 1277 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 641 264K 265K 78643K 352323 0 UVM aobj 131 4K 4K 78643K 135 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 3235 0 NDP 13 0K 1K 78643K 154 0 temp 74 5920K 6040K 78643K 190983 0 kqueue 12 18K 29K 78643K 3234 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 4474 0 4470 26 25 1 3 0 8 0 rtentry 112 303 0 184 4 0 4 4 0 8 0 unpcb 144 51446 0 51428 289 283 6 11 0 8 5 syncache 312 211 0 211 37 36 1 1 0 8 1 sackhl 24 4 0 4 2 2 0 1 0 8 0 tcpqe 32 287 0 287 29 28 1 1 0 8 1 tcpcb 808 4966 0 4947 169 161 8 14 0 8 6 arp 120 50 0 31 1 0 1 1 0 8 0 inpcb 368 20698 0 20607 345 336 9 19 0 8 0 nd6 136 91 0 59 2 0 2 2 0 8 0 pkpcb 40 3381 0 3381 12 12 0 1 0 8 0 kcovpl 48 23 0 14 1 0 1 1 0 8 0 ppxss 1256 23 0 23 7 7 0 1 0 8 0 pffrag 232 93 0 91 7 6 1 1 0 482 0 pffrnode 88 93 0 91 7 6 1 1 0 8 0 pffrent 40 509 0 507 7 6 1 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 pfstitem 24 608 0 571 1 0 1 1 0 8 0 pfstkey 128 608 0 571 6 4 2 2 0 8 0 pfstate 376 608 0 571 20 16 4 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1216 0 729 34 3 31 31 0 8 0 art_table 32 1217 0 729 5 0 5 5 0 8 0 art_node 16 295 0 186 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 11 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 6007 0 5997 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 59 0 42 3 0 3 3 0 8 0 dino2pl 256 48630 0 47119 95 0 95 95 0 8 0 ffsino 272 48630 0 47119 101 0 101 101 0 8 0 nchpl 144 100466 0 99953 63 40 23 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 334444 0 334444 5 4 1 2 0 8 1 percpumem 16 141 0 97 1 0 1 1 0 8 0 vcpupl 2048 200 0 4 25 0 25 25 0 8 0 vmpool 696 209 0 13 19 1 18 18 0 8 0 kstatmem 264 220 0 194 4 2 2 3 0 8 0 scxspl 216 263548 0 263548 18 17 1 8 1 8 1 plimitpl 152 1780 0 1763 1 0 1 1 0 8 0 sigapl 424 38370 0 38317 11 3 8 9 0 8 0 futexpl 64 388163 0 388159 3 2 1 1 0 8 0 knotepl 120 1025 0 0 20 8 12 17 0 8 0 kqueuepl 216 10757 0 10749 118 115 3 8 0 8 2 pipepl 320 7244 0 7213 218 215 3 10 0 8 0 fdescpl 496 38309 0 38278 6 1 5 5 0 8 0 filepl 152 271450 0 271086 355 339 16 26 0 8 2 lockfpl 104 9335 0 9333 17 16 1 3 0 8 0 lockfspl 48 3230 0 3228 3 2 1 2 0 8 0 sessionpl 144 45 0 27 1 0 1 1 0 8 0 pgrppl 48 293 0 275 1 0 1 1 0 8 0 ucredpl 104 30494 0 30470 1 0 1 1 0 8 0 zombiepl 144 38319 0 38317 4 3 1 1 0 8 0 processpl 1072 38370 0 38317 5 0 5 5 0 8 0 procpl 680 94804 0 94729 18 9 9 10 0 8 0 sosppl 168 557 0 551 22 21 1 1 0 8 0 sockpl 488 80144 0 80034 1558 1544 14 45 0 8 0 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 21 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 847 0 0 52 21 31 41 0 8 0 mtagpl 96 1519 0 0 27 0 27 27 0 8 0 mbufpl 256 4021 0 0 160 0 160 160 0 8 0 bufpl 288 51968 0 45644 454 1 453 453 0 8 0 anonpl 24 3142479 0 3127262 305 195 110 122 0 186 0 amapchunkpl 152 1106513 0 1105575 77 37 40 45 0 158 0 amappl16 200 60583 0 60017 268 237 31 43 0 8 0 amappl15 192 25 0 25 5 5 0 1 0 8 0 amappl14 184 248 0 228 3 2 1 2 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 39191 0 39156 3 1 2 3 0 8 0 amappl11 160 70 0 55 1 0 1 1 0 8 0 amappl10 152 70 0 57 1 0 1 1 0 8 0 amappl9 144 485 0 481 1 0 1 1 0 8 0 amappl8 136 1420 0 1179 9 0 9 9 0 8 0 amappl7 128 336 0 307 2 0 2 2 0 8 0 amappl6 120 867 0 844 1 0 1 1 0 8 0 amappl5 112 1095 0 1084 1 0 1 1 0 8 0 amappl4 104 1167 0 1126 19 17 2 2 0 8 0 amappl3 96 221049 0 220939 37 33 4 4 0 8 1 amappl2 88 41577 0 41489 7 4 3 3 0 8 0 amappl1 80 143882 0 143293 23 10 13 23 0 8 0 amappl 88 350673 0 350379 10 2 8 8 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 38519 0 38292 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 38519 0 38292 2 0 2 2 0 8 0 vmmpekpl 168 239020 0 238918 5 0 5 5 0 8 0 vmmpepl 168 2154417 0 2150906 535 374 161 174 0 357 0 vmsppl 464 38518 0 38292 30 1 29 29 0 8 0 rwobjpl 56 485506 0 477497 123 6 117 117 0 8 0 pdppl 4096 77046 0 76780 927 657 270 271 0 8 4 pvpl 32 9258249 0 9237500 759 572 187 368 0 265 0 pmappl 248 38518 0 38292 16 1 15 15 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2446 0 1237 35 0 35 35 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff800024739ba0) at vm_run+0x169 vmmioctl(a00,c0205602,ffff800024739ba0,1,ffff8000212bf010) at vmmioctl+0x2a1 sys/dev/vmm/vmm.c:242 VOP_IOCTL(fffffd806e972008,c0205602,ffff800024739ba0,1,fffffd807f7d7680,ffff8000212bf010) at VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807c681e58,c0205602,ffff800024739ba0,ffff8000212bf010) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000212bf010,ffff800024739cb0,ffff800024739d00) at sys_ioctl+0x4a2 syscall(ffff800024739d80) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800024739d80) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5630c708c90, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d48ff0) at x86_ipi_db+0x1e 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+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d48ff0) at sched_idle+0x41e sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5