load: 4.05 not a 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(ffff80002e575bf0) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4562 vmmioctl(a00,c0205602,ffff80002e575bf0,1,ffff80002619f508) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd807409dca8,c0205602,ffff80002e575bf0,1,fffffd807f7d75b0,ffff80002619f508) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8064334560,c0205602,ffff80002e575bf0,ffff80002619f508) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002619f508,ffff80002e575d08,ffff80002e575d50) at sys_ioctl+0x4a2 syscall(ffff80002e575dd0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e575dd0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x929bc02dc10, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff800027bc6640 rbp 0xffff80002e575940 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xfffffffffffffffe r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0xeda0c52989d537f2 r11 0x86a68515781c8d47 r12 0xffff800027bc63a0 r13 0 r14 0xffff800027bc6000 r15 0xffffffff8292fff0 cpu_info_full_primary+0x1ff0 rip 0xffffffff81859140 done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff80002e575786 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.7) pid=443513 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002619fce8,0xffffffff82bab1e8 process=0xffff8000ffff2158 user=0xffff80002e570000, vmspace=0xfffffd8068e57a38 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 57834 26432 96142 0 2 0 syz-executor.1 53839 29981 51654 0 2 0 syz-executor.5 53839 144356 51654 0 3 0x4000080 fsleep syz-executor.5 79968 210172 99155 0 2 0 syz-executor.2 79968 339060 99155 0 3 0x4000080 fsleep syz-executor.2 79968 416820 99155 0 2 0x4000000 syz-executor.2 21722 167415 62930 0 2 0 syz-executor.3 21722 334733 62930 0 3 0x4000080 fsleep syz-executor.3 1327 82778 56455 0 7 0 syz-executor.7 * 1327 443513 56455 0 7 0x4000000 syz-executor.7 69325 137650 1 0 3 0x82 nanoslp getty 58213 46593 52893 0 2 0x480 syz-executor.6 58213 250636 52893 0 3 0x4000080 netio syz-executor.6 58213 232876 52893 0 3 0x4000080 fsleep syz-executor.6 51654 155053 33420 0 2 0x2 syz-executor.5 52893 43691 33420 0 3 0x82 nanoslp syz-executor.6 56455 117531 33420 0 2 0x2 syz-executor.7 44077 26905 33420 0 2 0x2 syz-executor.4 67749 62148 33420 0 2 0x2 syz-executor.0 96142 68304 33420 0 3 0x82 nanoslp syz-executor.1 99155 222270 33420 0 3 0x82 nanoslp syz-executor.2 62930 422808 33420 0 3 0x82 nanoslp syz-executor.3 90095 139679 0 0 3 0x14200 bored sosplice 56217 165138 0 0 3 0x14280 nfsidl nfsio 93211 21857 0 0 3 0x14280 nfsidl nfsio 99156 98581 0 0 3 0x14280 nfsidl nfsio 47659 230261 0 0 3 0x14280 nfsidl nfsio 18753 162901 0 0 3 0x14280 nfsidl nfsio 84483 386023 0 0 3 0x14280 nfsidl nfsio 21939 347319 0 0 3 0x14280 nfsidl nfsio 73694 240054 0 0 3 0x14280 nfsidl nfsio 37074 349143 0 0 3 0x14280 nfsidl nfsio 77351 52682 0 0 3 0x14280 nfsidl nfsio 21731 406856 0 0 3 0x14280 nfsidl nfsio 13306 104870 0 0 3 0x14280 nfsidl nfsio 39896 5603 0 0 3 0x14280 nfsidl nfsio 93865 170073 0 0 3 0x14280 nfsidl nfsio 31628 496495 0 0 3 0x14280 nfsidl nfsio 47409 377381 0 0 3 0x14280 nfsidl nfsio 53787 301879 0 0 3 0x14280 nfsidl nfsio 72784 378455 0 0 3 0x14280 nfsidl nfsio 72902 276915 0 0 3 0x14280 nfsidl nfsio 99671 420213 0 0 3 0x14280 nfsidl nfsio 33420 497491 89569 0 3 0x82 wait syz-fuzzer 33420 259101 89569 0 3 0x4000082 nanoslp syz-fuzzer 33420 474853 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 44465 89569 0 3 0x4000082 wait syz-fuzzer 33420 12196 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 287973 89569 0 3 0x4000082 wait syz-fuzzer 33420 124095 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 273045 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 90082 89569 0 3 0x4000082 wait syz-fuzzer 33420 412685 89569 0 3 0x4000082 wait syz-fuzzer 33420 57110 89569 0 3 0x4000082 kqread syz-fuzzer 33420 290390 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 195025 89569 0 3 0x4000082 wait syz-fuzzer 33420 214002 89569 0 3 0x4000082 wait syz-fuzzer 33420 9893 89569 0 3 0x4000082 thrsleep syz-fuzzer 33420 65188 89569 0 3 0x4000082 wait syz-fuzzer 89569 298661 21508 0 3 0x10008a sigsusp ksh 21508 202661 63788 0 3 0x9a kqread sshd 63788 305981 1 0 3 0x88 kqread sshd 19298 164518 18673 74 3 0x1100092 bpf pflogd 18673 407661 1 0 3 0x80 netio pflogd 38447 286881 17688 73 3 0x1100090 kqread syslogd 17688 472215 1 0 3 0x100082 netio syslogd 81846 244641 1 0 3 0x100080 kqread resolvd 23080 481474 46419 77 3 0x100092 kqread dhcpleased 1012 508202 46419 77 3 0x100092 kqread dhcpleased 46419 63620 1 0 3 0x80 kqread dhcpleased 3947 358432 0 0 3 0x14200 bored smr 28936 387672 0 0 2 0x14200 zerothread 27111 490634 0 0 3 0x14200 aiodoned aiodoned 20160 62753 0 0 3 0x14200 syncer update 20381 438203 0 0 3 0x14200 cleaner cleaner 78333 235686 0 0 3 0x14200 reaper reaper 2061 267184 0 0 3 0x14200 pgdaemon pagedaemon 72152 122881 0 0 3 0x14200 bored viomb 24463 312363 0 0 3 0x40014200 acpi0 acpi0 32596 105811 0 0 3 0x40014200 idle1 47186 83140 0 0 3 0x14200 bored softnet 95488 501758 0 0 3 0x14200 bored softnet 99324 149734 0 0 3 0x14200 bored softnet 84457 243703 0 0 3 0x14200 bored softnet 49941 358822 0 0 3 0x14200 bored systqmp 70080 78828 0 0 3 0x14200 bored systq 1356 106553 0 0 3 0x40014200 bored softclock 44016 440225 0 0 3 0x40014200 idle0 1 337311 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 1327 (syz-executor.7) thread 0xffff80002619f508 (443513) exclusive rwlock vcpu r = 0 (0xffff800027bc63b0) #0 witness_lock+0x44d #1 vm_run+0x100 sys/arch/amd64/amd64/vmm.c:4536 #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 10214 6500K 6825K 78643K 19658 0 pcb 13 16K 21K 78643K 913 0 rtable 254 20K 21K 78643K 2229 0 ifaddr 120 24K 24K 78643K 760 0 sysctl 2 0K 0K 78643K 2 0 counters 58 35K 36K 78643K 210 0 ioctlops 0 0K 4K 78643K 2602 0 iov 0 0K 16K 78643K 463 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1389 87K 88K 78643K 3891 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 49 0 VM map 2 1K 1K 78643K 2 0 sem 25 6K 11K 78643K 149 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 81K 78643K 5845 0 sigio 0 0K 0K 78643K 53 0 proc 70 91K 116K 78643K 1592 0 subproc 104 6K 6K 78643K 429 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 263 0 in_multi 103 6K 6K 78643K 506 0 ether_multi 1 0K 0K 78643K 13 0 mrt 2 0K 0K 78643K 20 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 121 546K 546K 78643K 121 0 exec 0 0K 2K 78643K 1938 0 pfkey data 0 0K 0K 78643K 138 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 62K 78643K 8 0 UVM amap 369 415K 420K 78643K 36605 0 UVM aobj 131 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 168 0 NDP 17 0K 1K 78643K 170 0 temp 150 4727K 38518K 78643K 83381 0 kqueue 12 18K 26K 78643K 447 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 120 462 0 459 8 7 1 3 0 8 0 rtentry 112 567 0 464 4 1 3 4 0 8 0 unpcb 144 3744 0 3729 40 38 2 6 0 8 1 syncache 296 12 0 12 4 4 0 1 0 8 0 tcpqe 32 88 0 88 3 3 0 1 0 8 0 tcpcb 768 1136 0 1128 40 32 8 11 0 8 7 arp 120 69 0 51 1 0 1 1 0 8 0 inpcb 320 7863 0 7853 105 96 9 18 0 8 7 nd6 48 115 0 91 1 0 1 1 0 8 0 pkpcb 40 64 0 64 7 6 1 1 0 8 1 kcovpl 48 33 0 25 1 0 1 1 0 8 0 ppxss 1256 23 0 23 7 6 1 1 0 8 1 pfstscr 40 46 0 46 4 4 0 1 0 8 0 pffrag 232 11 0 10 2 1 1 1 0 482 0 pffrnode 88 11 0 10 2 1 1 1 0 8 0 pffrent 40 39 0 38 3 2 1 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 239 0 232 5 4 1 1 0 8 0 pfanchor 1280 578 1 66 44 1 43 43 0 8 0 pftag 88 7 0 4 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 36 0 34 1 0 1 1 0 8 0 pfstkey 120 122 0 120 1 0 1 1 0 8 0 pfstate 336 76 0 74 3 2 1 3 0 8 0 pfrule 1360 261 0 233 4 1 3 3 0 8 0 rttmr 136 6 0 6 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2317 0 1861 49 20 29 29 0 8 0 art_table 32 2318 0 1861 4 0 4 4 0 8 0 art_node 16 530 0 440 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 1 1 0 1 1 0 8 0 semapl 112 135 0 112 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8677 0 7233 91 0 91 91 0 8 0 ffsino 272 8677 0 7233 97 0 97 97 0 8 0 nchpl 144 16416 0 14767 63 0 63 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 60822 0 60822 6 5 1 2 0 8 1 percpumem 16 117 0 76 1 0 1 1 0 8 0 vcpupl 2048 93 0 0 12 0 12 12 0 8 0 vmpool 568 108 0 15 8 1 7 7 0 8 0 pfiaddrpl 120 81 0 71 5 4 1 1 0 8 0 kstatmem 264 184 0 150 4 1 3 3 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 52462 0 52462 30 28 2 8 0 8 2 plimitpl 152 626 0 611 1 0 1 1 0 8 0 sigapl 424 6121 0 6054 9 1 8 8 0 8 0 futexpl 64 48535 0 48531 5 4 1 1 0 8 0 knotepl 120 535 0 0 11 1 10 10 0 8 0 kqueuepl 216 1171 0 1163 21 20 1 5 0 8 0 pipepl 320 1497 0 1469 44 36 8 11 0 8 5 fdescpl 496 6082 0 6053 6 2 4 5 0 8 0 filepl 152 41118 0 40875 98 79 19 21 0 8 8 lockfpl 104 1910 0 1908 5 2 3 3 0 8 2 lockfspl 48 479 0 477 1 0 1 1 0 8 0 sessionpl 144 49 0 33 1 0 1 1 0 8 0 pgrppl 48 100 0 84 1 0 1 1 0 8 0 ucredpl 104 4481 0 4469 1 0 1 1 0 8 0 zombiepl 144 6054 0 6054 5 4 1 1 0 8 1 processpl 1064 6121 0 6054 5 0 5 5 0 8 0 procpl 672 16931 0 16842 21 12 9 10 0 8 0 srpgc 96 30 0 30 11 11 0 1 0 8 0 sosppl 168 33 0 33 6 5 1 1 0 8 1 sockpl 488 12148 0 12120 238 225 13 29 0 8 8 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 18 0 0 3 1 2 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 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 447 0 0 54 11 43 54 0 8 1 mtagpl 96 272 0 0 6 0 6 6 0 8 0 mbufpl 256 786 0 0 29 0 29 29 0 8 0 bufpl 288 14336 0 8004 453 0 453 453 0 8 0 anonpl 24 1214093 0 1192317 196 51 145 156 0 186 0 amapchunkpl 152 104504 0 103684 64 30 34 40 0 158 0 amappl16 200 16062 0 15237 81 36 45 53 0 8 0 amappl15 192 893 0 886 1 0 1 1 0 8 0 amappl14 184 959 0 951 1 0 1 1 0 8 0 amappl13 176 978 0 976 1 0 1 1 0 8 0 amappl12 168 1012 0 1008 1 0 1 1 0 8 0 amappl11 160 765 0 745 2 1 1 2 0 8 0 amappl10 152 161 0 155 1 0 1 1 0 8 0 amappl9 144 1320 0 1315 1 0 1 1 0 8 0 amappl8 136 1997 0 1901 4 0 4 4 0 8 0 amappl7 128 1090 0 1064 1 0 1 1 0 8 0 amappl6 120 1180 0 1162 2 1 1 2 0 8 0 amappl5 112 4381 0 4363 1 0 1 1 0 8 0 amappl4 104 2936 0 2900 2 0 2 2 0 8 0 amappl3 96 18988 0 18934 2 0 2 2 0 8 0 amappl2 88 1961 0 1922 2 0 2 2 0 8 0 amappl1 80 152601 0 151927 21 5 16 20 0 8 0 amappl 88 35522 0 35316 7 1 6 6 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 6 3 0 3 3 0 8 0 uaddrrnd 24 6191 0 6069 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6191 0 6069 1 0 1 1 0 8 0 vmmpekpl 168 51400 0 51328 4 0 4 4 0 8 0 vmmpepl 168 603186 0 600083 269 116 153 156 0 357 5 vmsppl 368 6190 0 6069 15 3 12 12 0 8 0 rwobjpl 56 153814 0 145817 120 6 114 115 0 8 0 pdppl 4096 12389 0 12231 449 287 162 164 0 8 4 pvpl 32 2545767 0 2523593 360 162 198 259 0 265 0 pmappl 248 6190 0 6069 9 1 8 8 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1287 0 338 28 0 28 28 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff80002e575bf0) at vm_run+0x215 sys/arch/amd64/amd64/vmm.c:4562 vmmioctl(a00,c0205602,ffff80002e575bf0,1,ffff80002619f508) at vmmioctl+0x192 sys/arch/amd64/amd64/vmm.c:685 VOP_IOCTL(fffffd807409dca8,c0205602,ffff80002e575bf0,1,fffffd807f7d75b0,ffff80002619f508) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8064334560,c0205602,ffff80002e575bf0,ffff80002619f508) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002619f508,ffff80002e575d08,ffff80002e575d50) at sys_ioctl+0x4a2 syscall(ffff80002e575dd0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e575dd0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x929bc02dc10, 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 end of kernel end trace frame: 0x7f7fffffb570, count: -3