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 0xffff80003c431d18 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 0xffffffff81ac42db done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff8000333b2918 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor) tid=368294 pid=57194 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037bcc558,0xffffffff839fd820 process=0xffff80003c484ea0 user=0xffff8000333ad000, vmspace=0xfffffd806f5a77a8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 57194 265443 81580 0 2 0 syz-executor *57194 368294 81580 0 7 0x4000000 syz-executor 53093 47812 54997 0 3 0x80 fsleep syz-executor 53093 212839 54997 0 2 0x4000000 syz-executor 29882 214746 55694 0 3 0x80 fsleep syz-executor 29882 113091 55694 0 3 0x4000080 sbwait syz-executor 73426 420578 73927 0 3 0x80 fsleep syz-executor 73426 136656 73927 0 3 0x4000080 sbwait syz-executor 37093 317314 95821 0 3 0x3000 suspend syz-executor 37093 210350 95821 0 2 0x4081000 syz-executor 37093 134146 95821 0 3 0x4081000 inode syz-executor 44076 24957 9139 0 3 0x82 wait syz-executor 39507 423402 9139 0 3 0x82 nanoslp syz-executor 90557 157154 0 0 3 0x14280 nfsidl nfsio 85959 257452 0 0 3 0x14280 nfsidl nfsio 35749 169413 0 0 3 0x14280 nfsidl nfsio 88364 312833 0 0 3 0x14280 nfsidl nfsio 82054 211850 0 0 3 0x14280 nfsidl nfsio 50426 518060 0 0 3 0x14280 nfsidl nfsio 98344 298985 0 0 3 0x14280 nfsidl nfsio 71645 363502 0 0 3 0x14280 nfsidl nfsio 82813 167812 0 0 3 0x14280 nfsidl nfsio 81265 124977 0 0 3 0x14280 nfsidl nfsio 27040 420056 0 0 3 0x14280 nfsidl nfsio 39730 522900 0 0 3 0x14280 nfsidl nfsio 10727 254414 0 0 3 0x14280 nfsidl nfsio 59543 105635 0 0 3 0x14280 nfsidl nfsio 48533 345358 0 0 3 0x14280 nfsidl nfsio 55378 233619 0 0 3 0x14280 nfsidl nfsio 43301 241894 0 0 3 0x14280 nfsidl nfsio 11020 98591 0 0 3 0x14280 nfsidl nfsio 84516 227101 0 0 3 0x14280 nfsidl nfsio 25699 319208 0 0 3 0x14280 nfsidl nfsio 54997 343524 9139 0 3 0x82 nanoslp syz-executor 81580 16395 9139 0 2 0xc82 syz-executor 73927 26866 9139 0 3 0x82 nanoslp syz-executor 95821 328034 9139 0 3 0x82 wait syz-executor 57267 355043 9139 0 3 0x82 nanoslp syz-executor 55694 103432 9139 0 3 0x82 nanoslp syz-executor 9139 486778 19027 0 3 0x82 kqread syz-executor 19027 448507 77685 0 3 0x10008a sigsusp ksh 77685 330233 38905 0 3 0x98 kqread sshd-session 38905 263012 47737 0 3 0x92 kqread sshd-session 72428 198759 1 0 3 0x100083 ttyopn getty 47737 226662 1 0 3 0x88 kqread sshd 3392 276444 42571 74 3 0x1100092 bpf pflogd 42571 472071 1 0 3 0x80 sbwait pflogd 34652 276992 64293 73 3 0x1100090 kqread syslogd 64293 69163 1 0 3 0x100082 sbwait syslogd 99215 386311 1 0 3 0x100080 kqread resolvd 88538 44778 17183 77 3 0x100092 kqread dhcpleased 60235 321482 17183 77 3 0x100092 kqread dhcpleased 17183 300565 1 0 3 0x80 kqread dhcpleased 80631 18044 0 0 2 0x14200 smr 61367 250712 0 0 2 0x14200 zerothread 62157 296565 0 0 3 0x14200 aiodoned aiodoned 12710 256153 0 0 3 0x14200 syncer update 60557 23334 0 0 3 0x14200 cleaner cleaner 6406 435405 0 0 3 0x14200 reaper reaper 27602 203670 0 0 3 0x14200 pgdaemon pagedaemon 47357 195605 0 0 3 0x14200 bored viomb 35233 137608 0 0 3 0x40014200 acpi0 acpi0 65796 214110 0 0 7 0x40014200 idle1 763 20202 0 0 3 0x14200 bored softnet1 34218 311831 0 0 3 0x14200 bored softnet0 69066 37854 0 0 3 0x14200 smrbar systqmp 92432 90090 0 0 3 0x14200 bored systq 4411 493174 0 0 3 0x14200 tmoslp softclockmp 406 263250 0 0 3 0x40014200 tmoslp softclock 46310 510791 0 0 3 0x40014200 idle0 1 232162 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 57194 (syz-executor) thread 0xffff800037bcc028 (368294) Process 37093 (syz-executor) thread 0xffff800037bccd20 (210350) Process 37093 (syz-executor) thread 0xffff80003c410a98 (134146) Process 69066 (systqmp) thread 0xffff8000ffffe7c8 (37854) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11093 12200K 13154K 166960K 14344 0 pcb 17 16K 22K 166960K 682 0 rtable 215 12K 12K 166960K 663 0 pf 42 19K 21K 166960K 217 0 ifaddr 41 7K 8K 166960K 151 0 ifgroup 63 2K 3K 166960K 253 0 sysctl 4 1K 9K 166960K 17 0 counters 72 37K 38K 166960K 358 0 ioctlops 0 0K 4K 166960K 2170 0 iov 0 0K 18K 166960K 159 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1444 91K 91K 166960K 3224 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 26 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 237 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 1869 0 sigio 0 0K 0K 166960K 95 0 proc 72 115K 164K 166960K 799 0 subproc 72 4K 4K 166960K 92 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 379 0 in_multi 86 5K 7K 166960K 214 0 ether_multi 1 0K 0K 166960K 15 0 mrt 1 0K 0K 166960K 46 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 836 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 163K 189K 166960K 19043 0 UVM aobj 36 12K 12K 166960K 43 0 pinsyscall 43 86K 105K 166960K 3115 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 169 0 NDP 13 0K 2K 166960K 103 0 temp 78 9084K 9174K 166960K 67939 0 kqueue 14 22K 30K 166960K 350 0 SYN cache 2 8K 16K 166960K 3 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 120 153 0 150 1 0 1 1 0 8 0 rtentry 176 195 0 114 6 1 5 6 0 8 0 unpcb 144 1297 0 1276 13 11 2 4 0 8 1 syncache 336 13 0 13 7 7 0 1 0 8 0 tcpqe 32 6 0 6 4 4 0 1 0 8 0 tcpcb 736 656 0 648 15 13 2 7 0 8 1 arp 136 28 0 14 1 0 1 1 0 8 0 inpcb 328 2714 0 2701 31 26 5 16 0 8 2 nd6 152 36 0 14 2 0 2 2 0 8 0 pkpcb 40 8 0 8 4 4 0 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1192 122 0 122 4 3 1 1 0 8 1 pppxif 1576 9 0 9 5 4 1 1 0 8 1 pfstscr 40 4 0 4 3 2 1 1 0 8 1 pffrag 232 15 0 9 1 0 1 1 0 482 0 pffrnode 88 13 0 7 1 0 1 1 0 8 0 pffrent 40 29 0 23 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 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pfsrclim 320 14 0 14 3 3 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 110 0 65 1 0 1 1 0 8 0 pfstkey 128 117 0 73 2 0 2 2 0 8 0 pfstate 448 112 0 69 6 0 6 6 0 8 0 pfrule 1360 27 0 20 2 1 1 2 0 8 0 rttmr 136 7 0 7 4 3 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 933 0 543 34 6 28 30 0 8 2 art_table 40 936 0 543 5 0 5 5 0 8 0 art_node 32 194 0 121 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 13 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 229 0 219 1 0 1 1 0 8 0 shmpl 112 35 0 7 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 5202 0 3745 93 0 93 93 0 8 0 ffsino 296 5202 0 3745 114 0 114 114 0 8 0 nchpl 144 7824 0 6112 64 0 64 64 0 8 0 rtmask 32 22 0 22 7 6 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28415 0 28414 4 3 1 2 0 8 0 percpumem 16 194 0 143 1 0 1 1 0 8 0 vcpupl 3968 5 0 0 1 0 1 1 0 8 0 vmpool 848 5 0 0 1 0 1 1 0 8 0 kstatmem 264 166 0 136 7 4 3 3 0 8 0 scsiplug 72 10 0 10 6 5 1 1 0 8 1 scxspl 216 57921 0 57921 14 12 2 8 1 8 2 plimitpl 152 551 0 533 1 0 1 1 0 8 0 sigapl 424 2185 0 2117 9 1 8 8 0 8 0 knotepl 120 615 0 0 18 0 18 18 0 8 0 kqueuepl 224 1000 0 990 21 14 7 9 0 8 6 pipepl 344 342 0 314 9 3 6 6 0 8 3 fdescpl 528 2146 0 2114 3 0 3 3 0 8 0 filepl 160 16168 0 15932 38 25 13 20 0 8 2 lockfpl 104 783 0 781 1 0 1 1 0 8 0 lockfspl 48 305 0 303 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 71 0 54 1 0 1 1 0 8 0 ucredpl 104 2581 0 2568 1 0 1 1 0 8 0 zombiepl 144 2790 0 2786 1 0 1 1 0 8 0 processpl 1232 2185 0 2117 7 1 6 6 0 8 0 procpl 664 5085 0 5011 8 0 8 8 0 8 0 sosppl 176 8 0 8 7 6 1 1 0 8 1 sockpl 752 4364 0 4327 45 37 8 21 0 8 3 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 41 0 0 5 0 5 5 0 8 0 mtagpl 96 49 0 0 2 0 2 2 0 8 0 mbufpl 256 1880 0 0 115 0 115 115 0 8 0 bufpl 280 23371 0 17241 439 0 439 439 0 8 0 anonpl 32 15826 0 0 129 1 128 129 0 246 0 amapchunkpl 152 63360 0 62698 61 32 29 35 0 158 3 amappl16 200 8066 0 7787 69 46 23 33 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 456 0 455 1 0 1 1 0 8 0 amappl13 176 150 0 138 1 0 1 1 0 8 0 amappl12 168 2452 0 2421 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 66 0 52 1 0 1 1 0 8 0 amappl9 144 261 0 261 1 1 0 1 0 8 0 amappl8 136 111 0 108 1 0 1 1 0 8 0 amappl7 128 167 0 153 1 0 1 1 0 8 0 amappl6 120 179 0 178 1 0 1 1 0 8 0 amappl5 112 125 0 114 1 0 1 1 0 8 0 amappl4 104 344 0 323 1 0 1 1 0 8 0 amappl3 96 13099 0 12981 4 0 4 4 0 8 0 amappl2 88 681 0 620 2 0 2 2 0 8 0 amappl1 80 20918 0 20305 29 14 15 17 0 8 1 amappl 88 17897 0 17722 5 0 5 5 0 92 0 uvmvnodes 80 168 0 0 4 0 4 4 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 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 42 0 7 1 0 1 1 0 8 0 uaddrrnd 24 2146 0 2114 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2146 0 2114 1 0 1 1 0 8 0 vmmpekpl 168 19471 0 19424 3 0 3 3 0 8 0 vmmpepl 168 147686 0 145450 156 48 108 120 0 357 10 vmsppl 488 2145 0 2114 8 3 5 5 0 8 0 rwobjpl 80 42292 0 40887 39 5 34 36 0 8 2 pdppl 4096 4309 0 4233 132 55 77 83 0 8 1 pvpl 32 22495 0 0 182 0 182 182 0 265 0 pmappl 256 2150 0 2114 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 447 0 88 11 0 11 11 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(ffff8000299bdff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299bdff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5