kernel: protection fault trap, code=0 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5f7550,ffff80002f561dc0,ffff80002f561e00) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002f561ec0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91360e20f40, count: -5 ddb> show registers rdi 0xffff80002a5f7550 rsi 0xdeadbeefdeadbeef rbp 0xffff80002f561bb0 rbx 0xdeadbeefdeadbeef rdx 0 rcx 0xc0000004 rax 0xffff80002a5f7550 r8 0xfffffd8077b1dcc8 r9 0xfffffd807f7d7618 r10 0xb31f55561374e3ff r11 0x2c422618128cd732 r12 0xffff8000fffffaa0 r13 0xfffffd807f7d7618 r14 0xffff80002a5f7550 r15 0xc0000004 rip 0xffffffff81a7799e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002f561b30 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor.1) tid=233100 pid=73392 tcnt=3 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a5f72a8 forw=0xffffffffffffffff, list=0xffff80002a609008,0xffff80002a5f72b8 process=0xffff8000ffff2e28 user=0xffff80002f55c000, vmspace=0xfffffd80699ea9b0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *73392 233100 52212 0 7 0x4081000 syz-executor.1 73392 377167 52212 0 3 0x4003000 suspend syz-executor.1 18251 337758 9805 0 3 0x80 nanoslp syz-executor.3 18251 343608 9805 0 3 0x4000080 netio syz-executor.3 18251 115017 9805 0 3 0x4000080 fsleep syz-executor.3 8521 97632 64818 0 3 0x80 nanoslp syz-executor.2 8521 23937 64818 0 3 0x4000080 fsleep syz-executor.2 8521 472121 64818 0 3 0x4000080 netio syz-executor.2 8521 228985 64818 0 3 0x4000080 fsleep syz-executor.2 70915 477308 39137 0 3 0x80 nanoslp syz-executor.0 70915 212701 39137 0 3 0x4000080 netio syz-executor.0 70915 310062 39137 0 3 0x4000080 netio syz-executor.0 34954 361136 0 0 3 0x14200 bored sosplice 52889 180431 36897 0 2 0x2 syz-executor.7 539 343123 36897 0 2 0x2 syz-executor.6 90340 391461 36897 0 3 0x2 biowait syz-executor.5 63613 46262 36897 0 2 0x2 syz-executor.4 9805 398152 36897 0 3 0x82 nanoslp syz-executor.3 52212 417410 36897 0 3 0x82 nanoslp syz-executor.1 64818 349991 36897 0 3 0x82 nanoslp syz-executor.2 39137 491496 36897 0 3 0x82 nanoslp syz-executor.0 36897 310009 78693 0 3 0x2000082 thrsleep syz-fuzzer 36897 417094 78693 0 3 0x6000082 nanoslp syz-fuzzer 36897 367076 78693 0 3 0x6000082 wait syz-fuzzer 36897 39589 78693 0 3 0x6000082 wait syz-fuzzer 36897 509652 78693 0 3 0x6000082 wait syz-fuzzer 36897 344086 78693 0 3 0x6000082 wait syz-fuzzer 36897 383989 78693 0 3 0x6000082 wait syz-fuzzer 36897 283459 78693 0 3 0x6000082 wait syz-fuzzer 36897 387417 78693 0 3 0x6000082 thrsleep syz-fuzzer 36897 509863 78693 0 3 0x6000082 wait syz-fuzzer 36897 388573 78693 0 3 0x6000082 thrsleep syz-fuzzer 36897 204483 78693 0 3 0x6000082 wait syz-fuzzer 36897 3401 78693 0 3 0x6000082 kqread syz-fuzzer 36897 449842 78693 0 3 0x6000082 thrsleep syz-fuzzer 78693 497923 94817 0 3 0x10008a sigsusp ksh 94817 211348 31089 0 3 0x9a kqread sshd 99188 176985 1 0 3 0x100083 ttyin getty 31089 179100 1 0 3 0x88 kqread sshd 22738 367161 46355 73 3 0x1100090 kqread syslogd 46355 254179 1 0 3 0x100082 netio syslogd 71737 72036 1 0 3 0x100080 kqread resolvd 85010 264531 44629 77 3 0x100092 kqread dhcpleased 70823 204425 44629 77 3 0x100092 kqread dhcpleased 44629 227207 1 0 3 0x80 kqread dhcpleased 53239 115596 0 0 3 0x14200 bored smr 82425 388394 0 0 3 0x14200 pgzero zerothread 86228 488688 0 0 3 0x14200 aiodoned aiodoned 77992 69197 0 0 3 0x14200 syncer update 36082 430920 0 0 3 0x14200 cleaner cleaner 44852 230971 0 0 3 0x14200 reaper reaper 56471 184575 0 0 3 0x14200 pgdaemon pagedaemon 22749 177394 0 0 3 0x14200 bored viomb 9333 410505 0 0 3 0x40014200 acpi0 acpi0 27767 387480 0 0 3 0x14200 bored softnet3 54701 282610 0 0 3 0x14200 bored softnet2 76646 282097 0 0 3 0x14200 bored softnet1 87693 235497 0 0 3 0x14200 bored softnet0 30110 182617 0 0 3 0x14200 bored systqmp 52541 302179 0 0 3 0x14200 bored systq 70530 496324 0 0 3 0x40014200 tmoslp softclock 48233 457601 0 0 3 0x40014200 idle0 1 454342 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10168 6401K 6733K 166960K 11796 0 pcb 16 11K 12K 166960K 89 0 rtable 201 10K 10K 166960K 437 0 pf 29 8K 9K 166960K 46 0 ifaddr 38 10K 11K 166960K 55 0 ifgroup 50 2K 2K 166960K 75 0 sysctl 3 0K 0K 166960K 3 0 counters 30 17K 17K 166960K 37 0 ioctlops 0 0K 2K 166960K 32 0 iov 1 2K 12K 166960K 80 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 1383 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 20 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 85K 166960K 551 0 sigio 0 0K 0K 166960K 1 0 proc 57 59K 75K 166960K 490 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 11 0 in_multi 83 6K 7K 166960K 115 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 381 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 307 80K 81K 166960K 7302 0 UVM aobj 16 2K 2K 166960K 16 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 11 0K 1K 166960K 35 0 temp 47 6693K 7072K 166960K 5684 0 kqueue 12 18K 24K 166960K 46 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 42 0 39 1 0 1 1 0 8 0 rtentry 112 145 0 53 4 0 4 4 0 8 0 unpcb 144 327 0 310 2 1 1 2 0 8 0 syncache 312 13 0 13 4 3 1 1 0 8 1 tcpqe 32 318 0 318 3 3 0 1 0 8 0 tcpcb 808 125 0 110 5 3 2 5 0 8 0 arp 88 28 0 14 1 0 1 1 0 8 0 inpcb 336 356 0 335 7 2 5 5 0 8 3 nd6 104 25 0 6 1 0 1 1 0 8 0 pkpcb 40 7 0 6 2 1 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 515 0 108 29 2 27 29 0 8 1 art_table 32 516 0 108 4 0 4 4 0 8 0 art_node 16 144 0 60 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 13 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2015 0 576 91 0 91 91 0 8 0 ffsino 240 2015 0 576 86 0 86 86 0 8 0 nchpl 144 2962 0 1282 63 0 63 63 0 8 0 uvmvnodes 80 2198 0 0 45 0 45 45 0 8 0 vnodes 216 2198 0 0 123 0 123 123 0 8 0 namei 1024 10356 0 10352 3 2 1 3 0 8 0 kstatmem 264 36 0 14 2 0 2 2 0 8 0 scxspl 216 9605 0 9604 10 9 1 8 1 8 0 plimitpl 152 126 0 111 1 0 1 1 0 8 0 sigapl 424 849 0 807 6 0 6 6 0 8 0 futexpl 64 5734 0 5731 1 0 1 1 0 8 0 knotepl 120 11745 0 11663 3 0 3 3 0 8 0 kqueuepl 184 67 0 59 1 0 1 1 0 8 0 pipepl 288 147 0 119 3 0 3 3 0 8 1 fdescpl 432 832 0 807 4 0 4 4 0 8 0 filepl 120 4325 0 4013 13 3 10 12 0 8 0 lockfpl 104 256 0 189 2 0 2 2 0 8 0 lockfspl 48 23 0 20 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 7 1 0 1 1 0 8 0 ucredpl 104 291 0 281 1 0 1 1 0 8 0 zombiepl 144 808 0 807 1 0 1 1 0 8 0 processpl 1072 849 0 807 4 0 4 4 0 8 0 procpl 680 1572 0 1508 8 1 7 7 0 8 0 sockpl 456 732 0 690 11 2 9 9 0 8 3 mcl64k 65536 42 0 42 1 0 1 1 0 8 1 mcl16k 16384 26 0 26 1 0 1 1 0 8 1 mcl12k 12288 20 0 20 1 0 1 1 0 8 1 mcl9k 9216 12 0 12 1 0 1 1 0 8 1 mcl8k 8192 45 0 44 2 1 1 1 0 8 0 mcl4k 4096 143 0 136 3 1 2 2 0 8 1 mcl2k2 2112 7 0 6 1 0 1 1 0 8 0 mcl2k 2048 67059 0 67012 51 42 9 41 0 8 2 mtagpl 96 21 0 11 2 1 1 1 0 8 0 mbufpl 256 111501 0 111288 32 16 16 22 0 8 1 bufpl 288 4643 0 177 319 0 319 319 0 8 0 anonpl 24 256063 0 242839 91 10 81 91 0 188 0 amapchunkpl 152 24807 0 23967 37 2 35 37 0 158 0 amappl16 200 6851 0 6467 27 5 22 27 0 8 0 amappl15 192 12 0 11 1 0 1 1 0 8 0 amappl14 184 146 0 136 2 1 1 2 0 8 0 amappl13 176 28 0 27 1 0 1 1 0 8 0 amappl12 168 1454 0 1426 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 33 0 24 1 0 1 1 0 8 0 amappl9 144 188 0 187 1 0 1 1 0 8 0 amappl8 136 199 0 158 2 0 2 2 0 8 0 amappl7 128 154 0 136 2 0 2 2 0 8 0 amappl6 120 265 0 254 1 0 1 1 0 8 0 amappl5 112 147 0 138 1 0 1 1 0 8 0 amappl4 104 434 0 414 2 1 1 2 0 8 0 amappl3 96 5388 0 5304 3 0 3 3 0 8 0 amappl2 88 1291 0 1223 3 1 2 3 0 8 0 amappl1 80 11084 0 10580 22 10 12 22 0 8 0 amappl 88 6808 0 6595 6 0 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 832 0 807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 832 0 807 1 0 1 1 0 8 0 vmmpekpl 168 11891 0 11848 3 0 3 3 0 8 0 vmmpepl 168 73573 0 71516 115 16 99 115 0 357 5 vmsppl 352 831 0 807 4 1 3 4 0 8 0 rwobjpl 24 27879 0 24296 23 1 22 22 0 8 0 pdppl 4096 1670 0 1614 124 62 62 74 0 8 6 pvpl 32 530949 0 512465 361 49 312 361 0 265 159 pmappl 216 831 0 807 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 776 0 137 19 0 19 19 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5f7550,ffff80002f561dc0,ffff80002f561e00) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002f561ec0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91360e20f40, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5f7550,deadbeefdeadbeef,0,c0000004,fffffd8077b1dcc8,fffffd807f7d7618) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8077b1dcc8,4,40000004,ffffffff,ffff80002a5f7550) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5f7550,ffff80002f561dc0,ffff80002f561e00) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002f561ec0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91360e20f40, count: -5