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(ffff800024e90900) at vm_run+0x308 sys/arch/amd64/amd64/vmm.c:4485 vmmioctl(a00,c0205602,ffff800024e90900,1,ffff8000fffef7a8) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:661 VOP_IOCTL(fffffd806ea089f0,c0205602,ffff800024e90900,1,fffffd807f7d73c0,ffff8000fffef7a8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80640e3990,c0205602,ffff800024e90900,ffff8000fffef7a8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000fffef7a8,ffff800024e90a18,ffff800024e90a70) at sys_ioctl+0x4a2 syscall(ffff800024e90ae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024e90ae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3234bbbf890, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff80002e353638 rbp 0xffff800024e90660 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xfffffffffffffffd r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0xa8a0a9390e933b1f r11 0x639038a5a0b05299 r12 0xffffffff829bc2e8 dt_prov_static r13 0x246 r14 0xffff80002e353000 r15 0xffff800024e90900 rip 0xffffffff817265f0 done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff800024e904b6 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.4) pid=225130 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffeea88,0xffff80002e3fcaa0 process=0xffff80002e39add8 user=0xffff800024e8b000, vmspace=0xfffffd805c57a170 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45021 212466 98910 0 2 0 syz-executor.5 45021 10263 98910 0 3 0x4000080 fsleep syz-executor.5 88185 346470 90879 0 2 0 syz-executor.4 *88185 225130 90879 0 7 0x4000000 syz-executor.4 52104 32861 62263 0 2 0x480 syz-executor.0 52104 250489 62263 0 3 0x4000080 kqpoll syz-executor.0 52104 333173 62263 0 3 0x4000080 fsleep syz-executor.0 52982 281579 0 0 3 0x14200 acct acct 62263 290520 25884 0 3 0x82 nanoslp syz-executor.0 29991 340960 25884 0 2 0x482 syz-executor.2 72 289190 25884 0 3 0x82 nanoslp syz-executor.3 12097 51668 25884 0 2 0x482 syz-executor.1 16063 296400 25884 0 2 0x2 syz-executor.7 90879 377819 25884 0 2 0x482 syz-executor.4 98910 114114 25884 0 3 0x82 nanoslp syz-executor.5 18596 133083 1 0 3 0x100083 ttyopn getty 74929 27704 25884 0 2 0x482 syz-executor.6 29670 299786 0 0 3 0x14200 bored sosplice 25884 266707 38226 0 3 0x82 nanoslp syz-fuzzer 25884 415478 38226 0 3 0x4000082 nanoslp syz-fuzzer 25884 422282 38226 0 3 0x4000082 thrsleep syz-fuzzer 25884 184324 38226 0 3 0x4000082 thrsleep syz-fuzzer 25884 94976 38226 0 3 0x4000082 kqread syz-fuzzer 25884 391711 38226 0 3 0x4000082 thrsleep syz-fuzzer 25884 304106 38226 0 3 0x4000082 thrsleep syz-fuzzer 25884 476884 38226 0 3 0x4000082 thrsleep syz-fuzzer 38226 82564 63405 0 3 0x10008a sigsusp ksh 63405 3946 66413 0 3 0x9a kqread sshd 66413 126726 1 0 3 0x88 kqread sshd 36582 204806 82906 74 3 0x1100092 bpf pflogd 82906 202402 1 0 3 0x80 netio pflogd 86564 133030 43696 73 3 0x1100090 kqread syslogd 43696 364141 1 0 3 0x100082 netio syslogd 77951 508187 1 0 3 0x100080 kqread resolvd 95599 351375 54424 77 3 0x100092 kqread dhcpleased 63774 333311 54424 77 3 0x100092 kqread dhcpleased 54424 192643 1 0 3 0x80 kqread dhcpleased 22007 388721 0 0 3 0x14200 bored smr 96340 182876 0 0 2 0x14200 zerothread 28584 465626 0 0 3 0x14200 aiodoned aiodoned 9099 434148 0 0 3 0x14200 syncer update 57169 154399 0 0 3 0x14200 cleaner cleaner 36921 343985 0 0 3 0x14200 reaper reaper 78934 304768 0 0 3 0x14200 pgdaemon pagedaemon 7389 385721 0 0 3 0x14200 bored viomb 34153 349184 0 0 3 0x40014200 acpi0 acpi0 10075 178557 0 0 7 0x40014200 idle1 81330 385085 0 0 3 0x14200 bored softnet 37217 129558 0 0 3 0x14200 bored softnet 93967 331766 0 0 3 0x14200 bored softnet 25445 386889 0 0 3 0x14200 bored softnet 58654 373804 0 0 3 0x14200 bored systqmp 19320 77747 0 0 3 0x14200 bored systq 52509 440907 0 0 2 0x40014200 softclock 21168 309721 0 0 3 0x40014200 idle0 1 31743 0 0 3 0x82 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 10225 6521K 8861K 78643K 58435 0 pcb 13 18K 21K 78643K 2424 0 rtable 202 15K 16K 78643K 5466 0 ifaddr 98 22K 23K 78643K 1868 0 sysctl 3 1K 3K 78643K 13 0 counters 56 35K 36K 78643K 488 0 ioctlops 0 0K 8K 78643K 7982 0 iov 0 0K 32K 78643K 3731 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1830 114K 115K 78643K 15168 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 120 0 VM map 2 1K 1K 78643K 2 0 sem 26 10K 20K 78643K 1554 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 89K 78643K 24243 0 sigio 0 0K 0K 78643K 236 0 proc 72 91K 128K 78643K 3199 0 subproc 104 6K 7K 78643K 879 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1377 0 in_multi 84 5K 6K 78643K 1926 0 ether_multi 1 0K 0K 78643K 95 0 mrt 1 0K 0K 78643K 82 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 235 1049K 1049K 78643K 235 0 exec 0 0K 2K 78643K 4694 0 pfkey data 0 0K 0K 78643K 14 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 7 26K 26K 78643K 7 0 UVM amap 689 2003K 2009K 78643K 137830 0 UVM aobj 131 4K 4K 78643K 143 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 5539 0 NDP 15 0K 1K 78643K 539 0 temp 245 4934K 70474K 78643K 226906 0 kqueue 14 22K 30K 78643K 1453 0 SYN cache 2 3072K 3080K 78643K 4 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 1589 0 1586 18 17 1 3 0 8 0 rtentry 112 1460 0 1375 4 1 3 4 0 8 0 unpcb 136 29450 0 29435 179 172 7 10 0 8 6 syncache 296 91 0 91 26 26 0 1 0 8 0 tcpqe 32 159 0 159 15 15 0 1 0 8 0 tcpcb 736 11073 0 11067 266 259 7 17 0 8 5 arp 120 144 0 130 1 0 1 1 0 8 0 inpcb 312 20738 0 20731 238 230 8 20 0 8 7 nd6 48 405 0 387 1 0 1 1 0 8 0 pkpcb 40 416 0 416 21 20 1 1 0 8 1 kcovpl 48 67 0 59 1 0 1 1 0 8 0 ppxss 1248 93 0 93 23 23 0 1 0 8 0 pfstscr 40 41 0 41 2 2 0 1 0 8 0 pffrag 232 4 0 4 1 1 0 1 0 482 0 pffrnode 88 4 0 4 1 1 0 1 0 8 0 pffrent 40 75 1250 75 1 1 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 778 0 778 6 6 0 1 0 8 0 pftag 88 10 0 5 1 0 1 1 0 8 0 pfstitem 24 39 0 37 1 0 1 1 0 8 0 pfstkey 112 111 0 109 2 1 1 2 0 8 0 pfstate 336 73 0 71 3 2 1 3 0 8 0 pfrule 1360 257 0 251 3 2 1 2 0 8 0 rttmr 64 15 0 15 4 4 0 1 0 8 0 art_heap8 4096 11 0 9 6 4 2 4 0 8 0 art_heap4 256 6923 0 6484 67 39 28 31 0 8 0 art_table 32 6934 0 6493 4 0 4 4 0 8 0 art_node 16 1407 0 1335 1 0 1 1 0 8 0 sysvmsgpl 40 85 0 45 1 0 1 1 0 8 0 semapl 112 1542 0 1518 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 33296 0 31784 95 0 95 95 0 8 0 ffsino 272 33296 0 31784 102 0 102 102 0 8 0 nchpl 144 72802 0 71154 63 1 62 63 0 8 0 uvmvnodes 80 6553 0 0 134 0 134 134 0 8 0 vnodes 224 6553 0 0 386 0 386 386 0 8 0 namei 1024 256989 0 256988 7 6 1 2 0 8 0 percpumem 16 256 0 216 1 0 1 1 0 8 0 vcpupl 2048 362 0 0 46 0 46 46 0 8 0 vmpool 560 467 0 105 29 3 26 26 0 8 0 pfiaddrpl 120 229 0 229 5 5 0 1 0 8 0 kstatmem 264 462 0 432 4 1 3 3 0 8 0 scsiplug 72 31 0 31 9 9 0 1 0 8 0 scxspl 216 195214 0 195214 36 35 1 8 0 8 1 plimitpl 152 2703 0 2687 1 0 1 1 0 8 0 sigapl 424 24494 0 24445 11 3 8 9 0 8 0 futexpl 64 251255 0 251253 5 4 1 1 0 8 0 knotepl 120 1090 0 0 17 0 17 17 0 8 0 kqueuepl 216 5010 0 4999 93 92 1 6 0 8 0 pipepl 336 4512 0 4484 116 110 6 13 0 8 3 fdescpl 496 24412 0 24386 7 3 4 5 0 8 0 filepl 152 191939 0 191700 250 234 16 22 0 8 5 lockfpl 104 7349 0 7347 14 13 1 2 0 8 0 lockfspl 48 2108 0 2106 1 0 1 1 0 8 0 sessionpl 144 85 0 68 1 0 1 1 0 8 0 pgrppl 48 2491 0 2474 1 0 1 1 0 8 0 ucredpl 96 18821 0 18804 1 0 1 1 0 8 0 zombiepl 144 24449 0 24445 4 3 1 1 0 8 0 processpl 1064 24494 0 24445 5 0 5 5 0 8 0 procpl 672 64675 0 64615 37 31 6 9 0 8 0 srpgc 96 62 0 62 24 24 0 1 0 8 0 sosppl 168 226 0 226 31 31 0 1 0 8 0 sockpl 480 52319 0 52294 849 837 12 37 0 8 8 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 39 0 0 4 1 3 3 0 8 0 mcl4k 4096 32 0 0 4 0 4 4 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 349 0 0 23 3 20 23 0 8 0 mtagpl 96 1508 0 0 22 0 22 22 0 8 0 mbufpl 256 4590 0 0 287 0 287 287 0 8 0 bufpl 288 41547 0 34993 469 0 469 469 0 8 0 anonpl 24 4749585 0 4724446 406 227 179 182 0 186 12 amapchunkpl 152 403014 0 402300 112 79 33 41 0 158 0 amappl16 200 71481 0 70298 226 151 75 76 0 8 7 amappl15 192 5972 0 5970 1 0 1 1 0 8 0 amappl14 184 4668 0 4660 1 0 1 1 0 8 0 amappl13 176 3058 0 3056 1 0 1 1 0 8 0 amappl12 168 3167 0 3161 2 1 1 1 0 8 0 amappl11 160 2859 0 2837 3 1 2 2 0 8 0 amappl10 152 5681 0 5674 1 0 1 1 0 8 0 amappl9 144 1915 0 1909 1 0 1 1 0 8 0 amappl8 136 3776 0 3650 6 1 5 5 0 8 0 amappl7 128 2136 0 2125 1 0 1 1 0 8 0 amappl6 120 2054 0 2032 2 1 1 2 0 8 0 amappl5 112 21966 0 21950 1 0 1 1 0 8 0 amappl4 104 10476 0 10447 2 1 1 2 0 8 0 amappl3 96 74747 0 74701 2 0 2 2 0 8 0 amappl2 88 30105 0 30041 3 1 2 3 0 8 0 amappl1 80 576824 0 576220 23 7 16 20 0 8 0 amappl 88 135551 0 135250 9 1 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 24879 0 24491 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 24879 0 24491 3 0 3 3 0 8 0 vmmpekpl 168 163680 0 163581 6 0 6 6 0 8 0 vmmpepl 168 2359689 0 2355904 451 253 198 199 0 357 15 vmsppl 368 24878 0 24491 37 1 36 36 0 8 0 rwobjpl 56 579185 0 570133 167 37 130 131 0 8 0 pdppl 4096 49765 0 49344 1093 662 431 431 0 8 10 pvpl 32 9263817 0 9242465 701 483 218 255 0 265 23 pmappl 248 24878 0 24491 27 2 25 25 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2878 0 1321 45 0 45 45 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff800024e90900) at vm_run+0x308 sys/arch/amd64/amd64/vmm.c:4485 vmmioctl(a00,c0205602,ffff800024e90900,1,ffff8000fffef7a8) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:661 VOP_IOCTL(fffffd806ea089f0,c0205602,ffff800024e90900,1,fffffd807f7d73c0,ffff8000fffef7a8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80640e3990,c0205602,ffff800024e90900,ffff8000fffef7a8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000fffef7a8,ffff800024e90a18,ffff800024e90a70) at sys_ioctl+0x4a2 syscall(ffff800024e90ae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024e90ae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3234bbbf890, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) 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(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5