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 end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff800033f31650 rbp 0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xfffffffffffffffe r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0 r11 0 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81d45f1d done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff800030ae0086 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.2) tid=344138 pid=37943 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a2247f8,0xffffffff82d794e0 process=0xffff8000375a0908 user=0xffff800030adb000, vmspace=0xfffffd807b0dfe38 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37943 48090 88903 0 3 0x80 fsleep syz-executor.2 *37943 344138 88903 0 7 0x4000000 syz-executor.2 77579 387849 6983 0 3 0x80 fsleep syz-executor.0 77579 350564 6983 0 3 0x4000080 netcon syz-executor.0 77579 7990 6983 0 3 0x4000080 netcon syz-executor.0 3369 451839 17623 0 2 0x482 syz-executor.5 6983 398105 17623 0 3 0x82 nanoslp syz-executor.0 88903 26772 17623 0 2 0x482 syz-executor.2 65504 214157 17623 0 7 0x2 syz-executor.7 62155 218446 17623 0 3 0x82 nanoslp syz-executor.6 35194 118258 1 0 3 0x18100083 ttyin getty 14819 126006 17623 0 3 0x82 nanoslp syz-executor.4 42021 109121 17623 0 3 0x82 nanoslp syz-executor.3 75238 408378 17623 0 3 0x82 nanoslp syz-executor.1 20935 336890 1 0 3 0x80 fsleep syz-executor.0 20935 273070 1 0 3 0x4000080 netio syz-executor.0 15235 288852 1 0 3 0x80 fsleep syz-executor.6 15235 385527 1 0 3 0x4000080 lockf syz-executor.6 15235 195801 1 0 3 0x4000080 fsleep syz-executor.6 15235 116186 1 0 3 0x4000080 fsleep syz-executor.6 15969 255320 0 0 3 0x14200 acct acct 49128 449046 0 0 3 0x14280 nfsidl nfsio 12803 472107 0 0 3 0x14280 nfsidl nfsio 76481 507100 0 0 3 0x14280 nfsidl nfsio 42854 226479 0 0 3 0x14280 nfsidl nfsio 97261 107844 0 0 3 0x14280 nfsidl nfsio 2673 276756 0 0 3 0x14280 nfsidl nfsio 59384 343500 0 0 3 0x14280 nfsidl nfsio 62900 39704 0 0 3 0x14280 nfsidl nfsio 60357 275920 0 0 3 0x14280 nfsidl nfsio 26403 184283 0 0 3 0x14280 nfsidl nfsio 78619 273536 0 0 3 0x14280 nfsidl nfsio 98495 254923 0 0 3 0x14280 nfsidl nfsio 89949 199731 0 0 3 0x14280 nfsidl nfsio 61034 105477 0 0 3 0x14280 nfsidl nfsio 5708 481116 0 0 3 0x14280 nfsidl nfsio 85390 340260 0 0 3 0x14280 nfsidl nfsio 55846 69693 0 0 3 0x14280 nfsidl nfsio 43070 61022 0 0 3 0x14280 nfsidl nfsio 30097 182224 0 0 3 0x14280 nfsidl nfsio 83120 488405 0 0 3 0x14280 nfsidl nfsio 91791 494879 0 0 3 0x14200 bored sosplice 17623 4142 59057 0 3 0x1a000082 wait syz-fuzzer 17623 244406 59057 0 2 0x1e000482 syz-fuzzer 17623 179570 59057 0 3 0x1e000082 wait syz-fuzzer 17623 265802 59057 0 3 0x1e000082 wait syz-fuzzer 17623 432246 59057 0 3 0x1e000082 wait syz-fuzzer 17623 112844 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 143579 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 403062 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 64702 59057 0 3 0x1e000082 wait syz-fuzzer 17623 175963 59057 0 3 0x1e000082 wait syz-fuzzer 17623 317912 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 22421 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 514257 59057 0 3 0x1e000082 thrsleep syz-fuzzer 17623 296275 59057 0 3 0x1e000082 wait syz-fuzzer 17623 444521 59057 0 3 0x1e000082 kqread syz-fuzzer 17623 223187 59057 0 3 0x1e000082 wait syz-fuzzer 59057 367928 48113 0 3 0x810008a sigsusp ksh 48113 418736 38233 0 3 0x1800009a kqread sshd 38233 443053 1 0 3 0x18000088 kqread sshd 60744 520189 18934 74 3 0x19100092 bpf pflogd 18934 25218 1 0 3 0x18000080 netio pflogd 42369 40644 65485 73 3 0x19100090 kqread syslogd 65485 156168 1 0 3 0x18100082 netio syslogd 32609 141498 1 0 3 0x18100080 kqread resolvd 38165 290610 43339 77 3 0x18100092 kqread dhcpleased 43274 403234 43339 77 3 0x18100092 kqread dhcpleased 43339 147189 1 0 3 0x18000080 kqread dhcpleased 79141 273221 0 0 3 0x14200 bored smr 4151 132837 0 0 3 0x14200 pgzero zerothread 332 301214 0 0 3 0x14200 aiodoned aiodoned 46112 53954 0 0 3 0x14200 syncer update 14726 489395 0 0 3 0x14200 cleaner cleaner 78707 125839 0 0 3 0x14200 reaper reaper 52123 139975 0 0 3 0x14200 pgdaemon pagedaemon 3601 44080 0 0 3 0x14200 bored viomb 8139 203201 0 0 3 0x40014200 acpi0 acpi0 2536 343056 0 0 3 0x40014200 idle1 56516 117269 0 0 3 0x14200 bored softnet3 8372 88841 0 0 3 0x14200 bored softnet2 32577 53450 0 0 3 0x14200 bored softnet1 81406 235966 0 0 3 0x14200 bored softnet0 6957 28815 0 0 3 0x14200 bored systqmp 10140 202321 0 0 3 0x14200 bored systq 41101 265304 0 0 2 0x14200 softclockmp 85291 351408 0 0 2 0x40014200 softclock 39224 45365 0 0 3 0x40014200 idle0 1 514251 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 37943 (syz-executor.2) thread 0xffff80002a226a98 (344138) Process 65504 (syz-executor.7) thread 0xffff80002a1daa98 (214157) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 6504K 8631K 166960K 20678 0 pcb 15 28K 33K 166960K 2595 0 rtable 221 7K 7K 166960K 4729 0 pf 35 10K 11K 166960K 539 0 ifaddr 52 19K 19K 166960K 551 0 ifgroup 60 2K 3K 166960K 881 0 sysctl 4 1K 1K 166960K 14 0 counters 66 36K 37K 166960K 538 0 ioctlops 0 0K 4K 166960K 2945 0 iov 0 0K 34K 166960K 4116 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1768 111K 111K 166960K 9343 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 217 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 3469 0 dirhash 12 2K 2K 166960K 183 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 81K 166960K 26403 0 sigio 0 0K 0K 166960K 865 0 proc 79 92K 116K 166960K 4016 0 subproc 130 8K 8K 166960K 1171 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1142 0 in_multi 89 6K 7K 166960K 1292 0 ether_multi 1 0K 0K 166960K 88 0 mrt 5 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 3750 0 pfkey data 0 0K 0K 166960K 47 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 613 978K 981K 166960K 260310 0 UVM aobj 131 4K 4K 166960K 134 0 pinsyscall 26 52K 108K 166960K 3879 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 1279 0 NDP 13 0K 2K 166960K 424 0 temp 82 6812K 6940K 166960K 178939 0 kqueue 12 18K 30K 166960K 2197 0 SYN cache 2 1504K 1512K 166960K 4 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 1875 0 1872 29 28 1 5 0 8 0 rtentry 112 1340 0 1240 8 4 4 4 0 8 0 unpcb 144 22263 0 22248 256 255 1 11 0 8 0 syncache 336 132 0 132 41 41 0 1 0 8 0 sackhl 24 3 0 3 1 1 0 1 0 8 0 tcpqe 32 210 0 210 26 26 0 1 0 8 0 tcpcb 808 8372 0 8360 272 270 2 15 0 8 0 arp 120 234 0 217 1 0 1 1 0 8 0 inpcb 392 21975 0 21829 459 444 15 30 0 8 0 nd6 136 269 0 247 1 0 1 1 0 8 0 pkpcb 40 131 0 130 17 16 1 1 0 8 0 kcovpl 48 89 0 79 1 0 1 1 0 8 0 ppxss 1168 75 0 75 21 21 0 1 0 8 0 pffrag 232 162 0 159 8 7 1 1 0 482 0 pffrnode 88 162 0 159 8 7 1 1 0 8 0 pffrent 40 703 0 700 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 24 824 0 805 1 0 1 1 0 8 0 pfstkey 128 826 0 804 4 3 1 2 0 8 0 pfstate 376 826 0 807 18 15 3 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 11 0 9 7 5 2 3 0 8 0 art_heap4 256 4416 0 3995 73 46 27 30 0 8 0 art_table 32 4427 0 4004 4 0 4 4 0 8 0 art_node 16 1177 0 1087 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 3464 0 3454 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 131 0 114 3 0 3 3 0 8 0 dino2pl 256 35746 0 34113 103 0 103 103 0 8 0 ffsino 272 35746 0 34113 110 0 110 110 0 8 0 nchpl 144 71086 0 69348 67 0 67 67 0 8 0 uvmvnodes 80 6476 0 0 133 0 133 133 0 8 0 vnodes 216 6476 0 0 360 0 360 360 0 8 0 namei 1024 235579 0 235579 12 11 1 2 0 8 1 percpumem 16 283 0 236 1 0 1 1 0 8 0 vcpupl 2048 298 0 2 37 0 37 37 0 8 0 vmpool 696 340 0 44 28 1 27 27 0 8 0 kstatmem 264 498 0 472 6 3 3 3 0 8 0 scxspl 216 220786 0 220786 74 73 1 8 1 8 1 plimitpl 152 2275 0 2256 1 0 1 1 0 8 0 sigapl 424 26593 0 26520 14 5 9 9 0 8 0 futexpl 64 211152 0 211146 7 6 1 1 0 8 0 knotepl 120 1513 0 0 17 1 16 16 0 8 0 kqueuepl 216 5425 0 5417 91 90 1 5 0 8 0 pipepl 320 3647 0 3617 106 103 3 9 0 8 0 fdescpl 496 26550 0 26523 23 18 5 5 0 8 0 filepl 152 155272 0 154859 310 291 19 25 0 8 0 lockfpl 104 7466 0 7461 13 12 1 2 0 8 0 lockfspl 48 1999 0 1995 1 0 1 1 0 8 0 sessionpl 144 105 0 86 1 0 1 1 0 8 0 pgrppl 48 359 0 340 1 0 1 1 0 8 0 ucredpl 104 20402 0 20389 1 0 1 1 0 8 0 zombiepl 144 26526 0 26520 2 1 1 1 0 8 0 processpl 1136 26593 0 26520 6 0 6 6 0 8 0 procpl 680 73877 0 73782 28 19 9 10 0 8 0 srpgc 96 121 0 121 42 42 0 1 0 8 0 sosppl 168 400 0 400 16 16 0 1 0 8 0 sockpl 584 46364 0 46199 530 517 13 25 0 8 0 mcl64k 65536 57 0 0 5 2 3 3 0 8 0 mcl16k 16384 29 0 0 4 2 2 3 0 8 0 mcl12k 12288 49 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 49 0 0 3 0 3 3 0 8 0 mcl4k 4096 73 0 0 6 3 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 440 0 0 33 20 13 33 0 8 0 mtagpl 96 389 0 0 10 6 4 10 0 8 0 mbufpl 256 6974 0 0 424 0 424 424 0 8 0 bufpl 280 47090 0 40615 463 0 463 463 0 8 0 anonpl 24 2730497 0 2716348 318 202 116 168 0 186 0 amapchunkpl 152 838006 0 837097 215 169 46 69 0 158 0 amappl16 200 57631 0 57142 367 337 30 51 0 8 0 amappl15 192 145 0 141 1 0 1 1 0 8 0 amappl14 184 488 0 463 4 2 2 2 0 8 0 amappl13 176 18 0 18 2 2 0 1 0 8 0 amappl12 168 28404 0 28369 3 1 2 2 0 8 0 amappl11 160 85 0 71 1 0 1 1 0 8 0 amappl10 152 138 0 118 1 0 1 1 0 8 0 amappl9 144 334 0 334 51 51 0 1 0 8 0 amappl8 136 1252 0 1071 9 2 7 7 0 8 0 amappl7 128 176 0 160 1 0 1 1 0 8 0 amappl6 120 1532 0 1500 3 1 2 2 0 8 0 amappl5 112 1047 0 1031 1 0 1 1 0 8 0 amappl4 104 1594 0 1540 3 1 2 3 0 8 0 amappl3 96 159847 0 159761 9 6 3 4 0 8 0 amappl2 88 28188 0 28102 5 2 3 4 0 8 0 amappl1 80 106298 0 105752 23 10 13 23 0 8 0 amappl 88 258444 0 258127 9 0 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 26890 0 26567 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26890 0 26567 2 0 2 2 0 8 0 vmmpekpl 168 192464 0 192346 6 0 6 6 0 8 0 vmmpepl 168 1603855 0 1601038 757 605 152 173 0 357 0 vmsppl 448 26889 0 26567 41 4 37 37 0 8 0 rwobjpl 56 387739 0 379277 145 24 121 124 0 8 0 pdppl 4096 53787 0 53430 1680 1312 368 370 0 8 11 pvpl 32 46525 0 0 376 0 376 376 0 265 0 pmappl 248 26889 0 26567 22 1 21 21 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3436 0 2275 34 0 34 34 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1