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 0xffff80003c3e2c98 rbp 0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0x100000001 r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0 r11 0 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81f1820b done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff80002a364348 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor) tid=311702 pid=94717 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c411790,0xffffffff83a379f8 process=0xffff8000fffec4e8 user=0xffff80002a35f000, vmspace=0xfffffd8073d4cba0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43265 389530 49901 0 2 0 syz-executor 94717 10309 92769 0 7 0 syz-executor *94717 311702 92769 0 7 0x4000000 syz-executor 18 340286 42034 0 2 0 syz-executor 18 367523 42034 0 2 0x4000000 syz-executor 22286 428530 85416 0 3 0x80 nanoslp syz-executor 22286 377447 85416 0 3 0x4000080 ttyout syz-executor 22286 99404 85416 0 3 0x4000080 fsleep syz-executor 99684 103905 44384 60929 2 0x11 syz-executor 99684 361339 44384 60929 2 0x4000010 syz-executor 99684 108057 44384 60929 3 0x4000090 fsleep syz-executor 99684 373964 44384 60929 3 0x4000090 fsleep syz-executor 78373 460036 86603 60929 2 0x10 syz-executor 78373 71999 86603 60929 3 0x4000090 kqsel syz-executor 78373 513069 86603 60929 3 0x4000090 fsleep syz-executor 78373 283033 86603 60929 3 0x4000090 fsleep syz-executor 85416 181925 10207 0 3 0x82 nanoslp syz-executor 16495 144488 10207 0 2 0x3 syz-executor 88706 407157 0 0 3 0x14280 nfsidl nfsio 79157 92677 0 0 3 0x14280 nfsidl nfsio 16054 147271 0 0 3 0x14280 nfsidl nfsio 1406 208507 0 0 3 0x14280 nfsidl nfsio 86933 145975 0 0 3 0x14280 nfsidl nfsio 76155 519285 0 0 3 0x14280 nfsidl nfsio 97487 12028 0 0 3 0x14280 nfsidl nfsio 44532 340037 0 0 3 0x14280 nfsidl nfsio 39300 180093 0 0 3 0x14280 nfsidl nfsio 59836 270614 0 0 3 0x14280 nfsidl nfsio 78104 193641 0 0 3 0x14280 nfsidl nfsio 53913 95382 0 0 3 0x14280 nfsidl nfsio 84507 28398 0 0 3 0x14280 nfsidl nfsio 51882 465815 0 0 3 0x14280 nfsidl nfsio 62821 119030 0 0 3 0x14280 nfsidl nfsio 25642 45760 0 0 3 0x14280 nfsidl nfsio 4624 504483 0 0 3 0x14280 nfsidl nfsio 35887 350107 0 0 3 0x14280 nfsidl nfsio 50064 432278 0 0 3 0x14280 nfsidl nfsio 29164 210737 0 0 3 0x14280 nfsidl nfsio 86603 180048 10207 0 3 0x82 nanoslp syz-executor 3149 97346 1 0 3 0x100083 ttyopn getty 44384 187132 10207 0 3 0x82 nanoslp syz-executor 42034 307985 10207 0 2 0x3 syz-executor 49901 24450 10207 0 3 0x82 nanoslp syz-executor 40321 241342 10207 0 2 0x2 syz-executor 92769 330155 10207 0 2 0x3 syz-executor 10207 338165 94447 0 3 0x82 kqread syz-executor 94447 137401 69539 0 3 0x10008a sigsusp ksh 69539 460965 49269 0 3 0x98 kqread sshd-session 49269 96205 18082 0 3 0x92 kqread sshd-session 18082 450832 1 0 3 0x88 kqread sshd 48178 274144 24560 74 3 0x1100092 bpf pflogd 24560 3539 1 0 3 0x80 sbwait pflogd 35123 215508 19302 73 3 0x1100090 kqread syslogd 19302 48561 1 0 3 0x100082 sbwait syslogd 20926 237869 1 0 3 0x100080 kqread resolvd 50740 224613 42775 77 3 0x100092 kqread dhcpleased 64486 466408 42775 77 3 0x100092 kqread dhcpleased 42775 231619 1 0 3 0x80 kqread dhcpleased 46961 39688 0 0 3 0x14200 bored smr 61905 267023 0 0 2 0x14200 zerothread 4122 36641 0 0 3 0x14200 aiodoned aiodoned 43448 394894 0 0 3 0x14200 syncer update 56483 154628 0 0 3 0x14200 cleaner cleaner 21657 366233 0 0 3 0x14200 reaper reaper 9033 172636 0 0 3 0x14200 pgdaemon pagedaemon 10959 1373 0 0 3 0x14200 bored viomb 85917 269601 0 0 3 0x40014200 acpi0 acpi0 44480 417871 0 0 3 0x40014200 idle1 39104 167113 0 0 3 0x14200 bored softnet1 7086 270553 0 0 3 0x14200 bored softnet0 72702 417192 0 0 3 0x14200 bored systqmp 24753 286247 0 0 3 0x14200 bored systq 38166 35934 0 0 3 0x14200 tmoslp softclockmp 77769 366212 0 0 3 0x40014200 tmoslp softclock 91616 278276 0 0 3 0x40014200 idle0 1 140866 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 94717 (syz-executor) thread 0xffff80003abbca88 (311702) Process 18 (syz-executor) thread 0xffff80003abbc028 (367523) Process 40321 (syz-executor) thread 0xffff8000ffffdc90 (241342) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11104 12180K 13855K 166960K 14801 0 pcb 19 15K 16K 166960K 586 0 rtable 238 13K 14K 166960K 837 0 pf 34 17K 81K 166960K 251 0 ifaddr 36 6K 9K 166960K 183 0 ifgroup 54 2K 3K 166960K 320 0 sysctl 4 1K 9K 166960K 47 0 counters 68 36K 38K 166960K 582 0 ioctlops 0 0K 5K 166960K 2140 0 iov 0 0K 25K 166960K 89 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1388 87K 88K 166960K 3222 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 13K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 188 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 236K 166960K 2094 0 sigio 0 0K 0K 166960K 49 0 proc 73 115K 163K 166960K 882 0 subproc 72 4K 4K 166960K 118 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 375 0 in_multi 77 5K 7K 166960K 261 0 ether_multi 1 0K 0K 166960K 31 0 mrt 2 0K 0K 166960K 56 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 817 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 226 172K 185K 166960K 21630 0 UVM aobj 44 28K 28K 166960K 46 0 pinsyscall 41 82K 102K 166960K 3402 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 194 0 NDP 11 0K 2K 166960K 126 0 temp 80 9088K 9334K 166960K 102650 0 kqueue 14 22K 32K 166960K 407 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 287 0 284 4 2 2 3 0 8 1 rtentry 176 224 0 139 5 0 5 5 0 8 0 unpcb 144 1537 0 1514 14 13 1 10 0 8 0 syncache 336 8 0 8 4 4 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 665 0 657 18 15 3 7 0 8 2 arp 136 30 0 15 1 0 1 1 0 8 0 inpcb 328 2223 0 2210 35 30 5 12 0 8 3 nd6 152 50 0 26 3 1 2 2 0 8 0 pkpcb 40 4 0 4 3 3 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1192 224 0 224 3 2 1 1 0 8 1 pppxif 1576 81 0 81 7 6 1 1 0 8 1 pffrag 232 16 0 9 1 0 1 1 0 482 0 pffrnode 88 16 0 9 1 0 1 1 0 8 0 pffrent 40 23 0 15 1 0 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 24 149 0 82 1 0 1 1 0 8 0 pfstkey 128 149 0 82 3 0 3 3 0 8 0 pfstate 448 149 0 82 9 0 9 9 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 rttmr 136 5 0 5 3 3 0 1 0 8 0 art_heap8 4096 6 0 1 5 0 5 5 0 8 0 art_heap4 256 1055 0 684 39 12 27 31 0 8 0 art_table 40 1061 0 685 5 0 5 5 0 8 0 art_node 32 222 0 147 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 183 0 173 1 0 1 1 0 8 0 shmpl 112 31 0 2 1 0 1 1 0 8 0 dirhash 1024 48 0 31 3 0 3 3 0 8 0 dino2pl 256 5690 0 4224 93 0 93 93 0 8 0 ffsino 296 5690 0 4224 114 0 114 114 0 8 0 nchpl 144 8491 0 6774 65 0 65 65 0 8 0 rtmask 32 12 0 12 4 3 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 29713 0 29711 5 4 1 2 0 8 0 percpumem 16 306 0 257 1 0 1 1 0 8 0 vcpupl 3968 12 0 0 2 0 2 2 0 8 0 vmpool 848 12 0 0 2 0 2 2 0 8 0 kstatmem 264 202 0 176 5 2 3 3 0 8 0 scsiplug 72 6 0 6 4 3 1 1 0 8 1 scxspl 216 47474 0 47474 12 11 1 8 1 8 1 plimitpl 152 498 0 481 1 0 1 1 0 8 0 sigapl 424 2421 0 2355 9 1 8 8 0 8 0 knotepl 120 785 0 0 24 0 24 24 0 8 0 kqueuepl 224 772 0 760 10 9 1 5 0 8 0 pipepl 344 309 0 281 4 1 3 4 0 8 0 fdescpl 528 2381 0 2351 3 0 3 3 0 8 0 filepl 160 15406 0 15175 30 18 12 20 0 8 1 lockfpl 104 1034 0 1031 3 2 1 2 0 8 0 lockfspl 48 328 0 325 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 72 0 55 1 0 1 1 0 8 0 ucredpl 104 2186 0 2169 1 0 1 1 0 8 0 zombiepl 144 3543 0 3543 1 0 1 1 0 8 1 processpl 1232 2421 0 2355 7 1 6 6 0 8 0 procpl 664 5956 0 5880 8 0 8 8 0 8 0 sosppl 176 18 0 18 6 5 1 1 0 8 1 sockpl 752 4094 0 4054 56 48 8 29 0 8 3 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 36 0 0 5 0 5 5 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 1179 0 0 74 0 74 74 0 8 0 bufpl 280 18059 0 11930 439 0 439 439 0 8 0 anonpl 32 11968 0 0 97 0 97 97 0 246 0 amapchunkpl 152 74318 0 73880 76 44 32 37 0 158 10 amappl16 200 7438 0 7403 77 71 6 28 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 499 0 498 1 0 1 1 0 8 0 amappl13 176 174 0 162 1 0 1 1 0 8 0 amappl12 168 2658 0 2629 2 0 2 2 0 8 0 amappl11 160 3 0 2 1 0 1 1 0 8 0 amappl10 152 177 0 162 1 0 1 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 124 0 122 1 0 1 1 0 8 0 amappl7 128 160 0 147 1 0 1 1 0 8 0 amappl6 120 210 0 208 1 0 1 1 0 8 0 amappl5 112 120 0 109 1 0 1 1 0 8 0 amappl4 104 331 0 311 1 0 1 1 0 8 0 amappl3 96 15033 0 14931 4 0 4 4 0 8 0 amappl2 88 632 0 570 2 0 2 2 0 8 0 amappl1 80 18603 0 18000 19 4 15 17 0 8 0 amappl 88 20464 0 20312 5 0 5 5 0 92 0 uvmvnodes 80 184 0 0 4 0 4 4 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 dma512 512 2 0 2 2 1 1 1 0 8 1 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 4 4 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 22 0 21 1 0 1 1 0 8 0 aobjpl 72 45 0 2 1 0 1 1 0 8 0 uaddrrnd 24 2381 0 2351 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2381 0 2351 1 0 1 1 0 8 0 vmmpekpl 168 19710 0 19646 4 0 4 4 0 8 0 vmmpepl 168 155849 0 153974 122 29 93 109 0 357 1 vmsppl 488 2380 0 2351 7 2 5 5 0 8 0 rwobjpl 80 42421 0 41259 36 3 33 34 0 8 0 pdppl 4096 4793 0 4714 137 54 83 85 0 8 4 pvpl 32 20465 0 0 165 0 165 165 0 265 0 pmappl 256 2392 0 2351 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 424 0 96 10 0 10 10 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 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299adff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x73d5b2cb6b50, count: -3