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(ffff800026194700) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4564 vmmioctl(a00,c0205602,ffff800026194700,1,ffff800029648540) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd806f4d3e60,c0205602,ffff800026194700,1,fffffd807f7d7750,ffff800029648540) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8063929318,c0205602,ffff800026194700,ffff800029648540) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff800029648540,ffff800026194818,ffff800026194860) at sys_ioctl+0x4a2 syscall(ffff8000261948e0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000261948e0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf92f4c2b340, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff800027df1e48 rbp 0xffff800026194450 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0x66702f7665642f r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0xb69dcde8f490c961 r11 0x117c01bf19b4a1b3 r12 0xffff800027df1ba0 r13 0xffffffff829c8ff0 cpu_info_full_primary+0x1ff0 r14 0xffff800027df1800 r15 0xffff800026194700 rip 0xffffffff820faae0 done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff8000261942a6 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.3) pid=92337 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000296487e0,0xffffffff82b828c0 process=0xffff8000ffffba38 user=0xffff80002618f000, vmspace=0xfffffd807017ea40 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69773 203089 89132 0 2 0 syz-executor.3 *69773 92337 89132 0 7 0x4000000 syz-executor.3 60066 436347 17801 0 2 0 syz-executor.6 60066 136177 17801 0 3 0x4000080 fsleep syz-executor.6 62949 474635 67094 0 2 0 syz-executor.1 62949 232776 67094 0 3 0x4000080 fsleep syz-executor.1 91000 361324 79687 0 2 0 syz-executor.0 91000 514372 79687 0 3 0x4000080 fsleep syz-executor.0 91000 347188 79687 0 3 0x4000080 fsleep syz-executor.0 10940 295247 54465 0 2 0 syz-executor.2 10940 347051 54465 0 3 0x4000080 fsleep syz-executor.2 2313 217153 78095 0 2 0 syz-executor.7 2313 447465 78095 0 3 0x4000080 fsleep syz-executor.7 2313 224282 78095 0 3 0x4000080 fsleep syz-executor.7 59502 255755 78713 0 2 0 syz-executor.5 59502 6928 78713 0 3 0x4000080 fsleep syz-executor.5 31298 134839 42608 60928 2 0x10 syz-executor.4 31298 390650 42608 60928 3 0x4000090 fsleep syz-executor.4 54465 434875 32704 0 3 0x82 nanoslp syz-executor.2 17801 93314 32704 0 3 0x82 nanoslp syz-executor.6 89132 3049 32704 0 3 0x82 nanoslp syz-executor.3 42608 243560 32704 0 3 0x82 nanoslp syz-executor.4 78713 298108 32704 0 3 0x82 nanoslp syz-executor.5 79687 26712 32704 0 3 0x82 nanoslp syz-executor.0 78095 444502 32704 0 3 0x82 nanoslp syz-executor.7 67094 13968 32704 0 3 0x82 nanoslp syz-executor.1 95909 375169 1 0 3 0x100083 ttyin getty 50273 127698 0 0 3 0x14200 bored sosplice 32704 521529 88794 0 3 0x82 wait syz-fuzzer 32704 281394 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 147943 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 167677 88794 0 3 0x4000082 wait syz-fuzzer 32704 408999 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 193164 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 132906 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 180420 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 431942 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 358217 88794 0 3 0x4000082 wait syz-fuzzer 32704 467251 88794 0 3 0x4000082 kqread syz-fuzzer 32704 252610 88794 0 3 0x4000082 wait syz-fuzzer 32704 252605 88794 0 3 0x4000082 wait syz-fuzzer 32704 291496 88794 0 3 0x4000082 thrsleep syz-fuzzer 32704 398571 88794 0 3 0x4000082 wait syz-fuzzer 32704 106471 88794 0 3 0x4000082 wait syz-fuzzer 32704 28051 88794 0 3 0x4000082 wait syz-fuzzer 88794 478966 90386 0 3 0x10008a sigsusp ksh 90386 81817 27845 0 3 0x9a kqread sshd 27845 280798 1 0 3 0x88 kqread sshd 4786 69967 17077 74 3 0x1100092 bpf pflogd 17077 390040 1 0 3 0x80 netio pflogd 99868 206860 78856 73 3 0x1100090 kqread syslogd 78856 492502 1 0 3 0x100082 netio syslogd 10077 506583 1 0 3 0x100080 kqread resolvd 75748 352286 0 0 3 0x14200 bored smr 84412 348841 0 0 2 0x14200 zerothread 17297 435635 0 0 3 0x14200 aiodoned aiodoned 1180 247483 0 0 3 0x14200 syncer update 17321 337165 0 0 3 0x14200 cleaner cleaner 20242 56478 0 0 3 0x14200 reaper reaper 67202 83616 0 0 3 0x14200 pgdaemon pagedaemon 59662 172359 0 0 3 0x14200 bored viomb 68253 366238 0 0 3 0x40014200 acpi0 acpi0 19729 400135 0 0 7 0x40014200 idle1 16133 450290 0 0 3 0x14200 bored softnet 60103 131547 0 0 3 0x14200 bored softnet 67290 168882 0 0 3 0x14200 bored softnet 19298 430005 0 0 3 0x14200 bored softnet 3504 227030 0 0 3 0x14200 bored systqmp 99873 193913 0 0 3 0x14200 bored systq 63787 98062 0 0 3 0x40014200 bored softclock 7769 24304 0 0 3 0x40014200 idle0 1 349729 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 69773 (syz-executor.3) thread 0xffff800029648540 (92337) exclusive rwlock vcpu r = 0 (0xffff800027df1bb0) #0 witness_lock+0x44d #1 vm_run+0x100 sys/arch/amd64/amd64/vmm.c:4538 #2 vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 #3 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 #5 sys_ioctl+0x4a2 #6 syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] #6 syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10238 6499K 7302K 78643K 28432 0 pcb 13 18K 22K 78643K 6860 0 rtable 216 17K 18K 78643K 11919 0 ifaddr 330 87K 89K 78643K 5094 0 sysctl 3 1K 3K 78643K 80 0 counters 56 35K 36K 78643K 2688 0 ioctlops 0 0K 4K 78643K 10585 0 iov 0 0K 32K 78643K 6105 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1580 99K 99K 78643K 15377 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 383 0 VM map 2 1K 1K 78643K 2 0 sem 23 32K 60K 78643K 638 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 93K 78643K 40832 0 sigio 0 0K 0K 78643K 1145 0 proc 69 67K 128K 78643K 8753 0 subproc 104 6K 9K 78643K 3222 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1914 0 in_multi 89 6K 7K 78643K 4691 0 ether_multi 1 0K 0K 78643K 293 0 mrt 1 0K 0K 78643K 211 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 11690 0 pfkey data 0 0K 0K 78643K 86 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 883 2499K 2499K 78643K 222921 0 UVM aobj 131 4K 6K 78643K 140 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1468 0 NDP 17 0K 2K 78643K 1622 0 temp 149 4735K 70270K 78643K 351899 0 kqueue 6 10K 26K 78643K 3804 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 2905 0 2904 32 31 1 4 0 8 0 rtentry 112 4215 0 4129 6 3 3 4 0 8 0 unpcb 144 29426 0 29413 295 289 6 8 0 8 5 syncache 296 136 0 136 32 32 0 1 0 8 0 tcpqe 32 546 0 546 10 10 0 2 0 8 0 tcpcb 768 12848 0 12837 535 532 3 16 0 8 1 arp 120 577 0 561 1 0 1 1 0 8 0 inpcb 368 37264 0 37255 675 668 7 16 0 8 6 ip6q 72 33 0 33 5 5 0 1 0 8 0 ip6af 40 66 0 66 5 5 0 1 0 8 0 nd6 48 970 0 949 1 0 1 1 0 8 0 pkpcb 40 142 0 142 12 12 0 1 0 8 0 kcovpl 48 241 0 233 1 0 1 1 0 8 0 mppekey 1024 120 0 120 9 9 0 1 0 8 0 ppxss 1256 840 0 840 79 78 1 1 0 8 1 pppxif 1704 192 0 192 41 40 1 1 0 8 1 pffrag 232 272 0 269 19 18 1 1 0 482 0 pffrnode 88 272 0 269 19 18 1 1 0 8 0 pffrent 40 747 0 744 19 18 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 1544 0 1488 1 0 1 1 0 8 0 pfstkey 120 1544 0 1488 7 5 2 2 0 8 0 pfstate 336 1544 0 1488 29 23 6 6 0 8 0 pfrule 1360 56 0 51 2 1 1 2 0 8 0 rttmr 136 49 0 49 14 14 0 1 0 8 0 art_heap8 4096 24 0 23 23 22 1 2 0 8 0 art_heap4 256 19256 0 18861 134 106 28 32 0 8 1 art_table 32 19280 0 18884 9 5 4 5 0 8 0 art_node 16 4134 0 4059 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 594 0 573 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 54504 0 52839 105 0 105 105 0 8 0 ffsino 272 54504 0 52839 112 0 112 112 0 8 0 nchpl 144 107588 0 107037 63 40 23 63 0 8 0 rtmask 32 14 0 14 4 4 0 1 0 8 0 uvmvnodes 80 9803 0 0 201 0 201 201 0 8 0 vnodes 216 9803 0 0 545 0 545 545 0 8 0 namei 1024 444472 0 444472 19 18 1 2 0 8 1 percpumem 16 1356 0 1316 1 0 1 1 0 8 0 vcpupl 2048 269 0 0 34 0 34 34 0 8 0 vmpool 568 574 0 305 23 3 20 20 0 8 0 kstatmem 264 1834 0 1800 5 2 3 3 0 8 0 scsiplug 72 42 0 42 14 13 1 1 0 8 1 scxspl 216 332712 0 332712 56 55 1 8 0 8 1 plimitpl 152 7567 0 7551 1 0 1 1 0 8 0 sigapl 424 40682 0 40636 11 5 6 9 0 8 0 futexpl 64 405532 0 405523 16 15 1 1 0 8 0 knotepl 120 2869 0 0 18 1 17 17 0 8 0 kqueuepl 216 8401 0 8331 100 96 4 5 0 8 0 pipepl 320 7945 0 7917 220 217 3 13 0 8 0 fdescpl 496 40637 0 40609 9 5 4 5 0 8 0 filepl 152 310776 0 310478 566 549 17 26 0 8 5 lockfpl 104 10587 0 10586 20 19 1 4 0 8 0 lockfspl 48 2815 0 2814 1 0 1 1 0 8 0 sessionpl 144 272 0 256 1 0 1 1 0 8 0 pgrppl 48 427 0 411 1 0 1 1 0 8 0 ucredpl 104 38378 0 38357 1 0 1 1 0 8 0 zombiepl 144 40636 0 40636 10 9 1 1 0 8 1 processpl 1064 40682 0 40636 6 2 4 6 0 8 0 procpl 672 101520 0 101448 29 22 7 10 0 8 0 srpgc 96 313 0 313 67 67 0 1 0 8 0 sosppl 168 253 0 253 48 48 0 1 0 8 0 sockpl 488 69840 0 69817 1567 1551 16 29 0 8 13 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 599 0 0 57 28 29 57 0 8 0 mtagpl 96 431 0 0 9 4 5 9 0 8 0 mbufpl 256 9207 0 0 532 0 532 532 0 8 0 bufpl 288 68079 0 58275 701 0 701 701 0 8 0 anonpl 24 7730690 0 7711136 484 352 132 174 0 186 0 amapchunkpl 152 655193 0 654373 186 149 37 59 0 158 0 amappl16 200 113675 0 112939 476 435 41 60 0 8 0 amappl15 192 10361 0 10347 4 3 1 2 0 8 0 amappl14 184 5107 0 5092 1 0 1 1 0 8 0 amappl13 176 4144 0 4139 1 0 1 1 0 8 0 amappl12 168 4340 0 4334 2 1 1 1 0 8 0 amappl11 160 4934 0 4924 1 0 1 1 0 8 0 amappl10 152 4616 0 4603 1 0 1 1 0 8 0 amappl9 144 7349 0 7337 1 0 1 1 0 8 0 amappl8 136 10444 0 10205 11 2 9 9 0 8 0 amappl7 128 5945 0 5922 3 2 1 2 0 8 0 amappl6 120 8220 0 8183 3 1 2 2 0 8 0 amappl5 112 31982 0 31967 1 0 1 1 0 8 0 amappl4 104 17991 0 17937 2 0 2 2 0 8 0 amappl3 96 119979 0 119920 2 0 2 2 0 8 0 amappl2 88 45536 0 45467 3 1 2 3 0 8 0 amappl1 80 945527 0 944799 26 10 16 23 0 8 0 amappl 88 217731 0 217360 13 4 9 9 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 72 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 41211 0 40914 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 41211 0 40914 2 0 2 2 0 8 0 vmmpekpl 168 270740 0 270654 5 0 5 5 0 8 0 vmmpepl 168 4029516 0 4025925 970 783 187 263 0 357 16 vmsppl 368 41210 0 40914 32 4 28 28 0 8 1 rwobjpl 56 939393 0 927244 224 52 172 172 0 8 0 pdppl 4096 82429 0 82097 2701 2369 332 334 0 8 0 pvpl 32 15627191 0 15602342 1012 789 223 309 0 265 0 pmappl 248 41210 0 40914 21 2 19 19 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 5258 0 3328 56 0 56 56 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff800026194700) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4564 vmmioctl(a00,c0205602,ffff800026194700,1,ffff800029648540) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd806f4d3e60,c0205602,ffff800026194700,1,fffffd807f7d7750,ffff800029648540) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8063929318,c0205602,ffff800026194700,ffff800029648540) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff800029648540,ffff800026194818,ffff800026194860) at sys_ioctl+0x4a2 syscall(ffff8000261948e0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000261948e0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf92f4c2b340, 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