kernel: protection fault trap, code=0 Stopped at ktrops+0x4f: movq 0x8(%r14),%r14 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a6a8d08,ffff80002daffcc0,ffff80002daffc10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002daffcc0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ab060fb220, count: -5 ddb> show registers rdi 0xffff80002a6a8d08 rsi 0xdeaf4152deaf4152 rbp 0xffff80002daff9e0 rbx 0xfffffd807f7d77b8 rdx 0 rcx 0xe000043e rax 0xffff80002a6a8d08 r8 0xfffffd8061d482d8 r9 0xfffffd807f7d77b8 r10 0xa57308a515993a7d r11 0xcd47f6278813921d r12 0xffff80002a6a8d08 r13 0x1 r14 0xdeaf4152deaf4152 r15 0xe000043e rip 0xffffffff81a06d5f ktrops+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002daff960 ss 0 ktrops+0x4f: movq 0x8(%r14),%r14 ddb> show proc PROC (syz-executor.2) tid=138140 pid=71181 tcnt=4 stat=onproc flags process=8000000 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a6a9c68,0xffff80002a6a87f8 process=0xffff800035db4888 user=0xffff80002dafa000, vmspace=0xfffffd80695a2978 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 71181 67225 28949 0 2 0x8000000 syz-executor.2 *71181 138140 28949 0 7 0xc000000 syz-executor.2 71181 507859 28949 0 3 0xc000080 fsleep syz-executor.2 71181 61542 28949 0 3 0xc000080 fsleep syz-executor.2 55916 481627 21521 0 2 0x8000000 syz-executor.0 55916 389202 21521 0 2 0xc000000 syz-executor.0 75123 497371 76727 0 2 0x8000000 syz-executor.4 75123 422823 76727 0 2 0xc000000 syz-executor.4 75123 47107 76727 0 3 0xc000080 fsleep syz-executor.4 21521 121736 33479 0 3 0x8000082 nanoslp syz-executor.0 16581 249732 1 0 3 0x18100083 ttyin getty 28865 191885 33479 0 3 0x8000082 nanoslp syz-executor.7 47585 7008 33479 0 2 0x8000002 syz-executor.5 33601 51502 33479 0 2 0x8000002 syz-executor.1 28949 141192 33479 0 3 0x8000082 nanoslp syz-executor.2 76727 165869 33479 0 3 0x8000082 nanoslp syz-executor.4 45453 356935 33479 0 2 0x8000002 syz-executor.3 3438 510665 33479 0 2 0x8000002 syz-executor.6 41932 212005 0 0 3 0x14280 nfsidl nfsio 81968 338352 0 0 3 0x14280 nfsidl nfsio 90380 472152 0 0 3 0x14280 nfsidl nfsio 19335 259529 0 0 3 0x14280 nfsidl nfsio 29811 216372 0 0 3 0x14280 nfsidl nfsio 97176 244839 0 0 3 0x14280 nfsidl nfsio 95070 392602 0 0 3 0x14280 nfsidl nfsio 42010 281568 0 0 3 0x14280 nfsidl nfsio 91373 21056 0 0 3 0x14280 nfsidl nfsio 79104 430438 0 0 3 0x14280 nfsidl nfsio 22350 499911 0 0 3 0x14280 nfsidl nfsio 9434 232512 0 0 3 0x14280 nfsidl nfsio 73108 373611 0 0 3 0x14280 nfsidl nfsio 22998 56632 0 0 3 0x14280 nfsidl nfsio 6541 71234 0 0 3 0x14280 nfsidl nfsio 32355 301049 0 0 3 0x14280 nfsidl nfsio 44543 427852 0 0 3 0x14280 nfsidl nfsio 20152 297247 0 0 3 0x14280 nfsidl nfsio 31302 497445 0 0 3 0x14280 nfsidl nfsio 80957 172962 0 0 3 0x14280 nfsidl nfsio 19361 208075 0 0 3 0x14200 bored sosplice 33479 94092 95438 0 3 0x1a000082 wait syz-fuzzer 33479 417576 95438 0 3 0x1e000082 nanoslp syz-fuzzer 33479 420518 95438 0 3 0x1e000082 thrsleep syz-fuzzer 33479 360146 95438 0 3 0x1e000082 wait syz-fuzzer 33479 228028 95438 0 3 0x1e000082 thrsleep syz-fuzzer 33479 142341 95438 0 3 0x1e000082 wait syz-fuzzer 33479 57877 95438 0 3 0x1e000082 wait syz-fuzzer 33479 149216 95438 0 3 0x1e000082 thrsleep syz-fuzzer 33479 496901 95438 0 3 0x1e000082 wait syz-fuzzer 33479 207329 95438 0 3 0x1e000082 wait syz-fuzzer 33479 357167 95438 0 3 0x1e000082 thrsleep syz-fuzzer 33479 335683 95438 0 3 0x1e000082 thrsleep syz-fuzzer 33479 426558 95438 0 3 0x1e000082 kqread syz-fuzzer 33479 242985 95438 0 3 0x1e000082 wait syz-fuzzer 33479 183897 95438 0 3 0x1e000082 wait syz-fuzzer 95438 391922 21599 0 3 0x810008a sigsusp ksh 21599 494429 94898 0 3 0x1800009a kqread sshd 94898 228643 1 0 3 0x18000088 kqread sshd 70503 418461 33487 73 3 0x19100090 kqread syslogd 33487 389860 1 0 3 0x18100082 sbwait syslogd 69199 270506 1 0 3 0x18100080 kqread resolvd 59560 482925 8896 77 3 0x18100092 kqread dhcpleased 39480 121551 8896 77 3 0x18100092 kqread dhcpleased 8896 125332 1 0 3 0x18000080 kqread dhcpleased 76784 480063 0 0 3 0x14200 bored smr 27702 247340 0 0 2 0x14200 zerothread 74744 141183 0 0 3 0x14200 aiodoned aiodoned 89173 488508 0 0 3 0x14200 syncer update 97205 164736 0 0 3 0x14200 cleaner cleaner 48293 414135 0 0 3 0x14200 reaper reaper 25844 225141 0 0 3 0x14200 pgdaemon pagedaemon 70470 33651 0 0 3 0x14200 bored viomb 59636 61386 0 0 3 0x40014200 acpi0 acpi0 20595 351888 0 0 3 0x14200 bored softnet3 70095 170726 0 0 3 0x14200 bored softnet2 63399 434107 0 0 3 0x14200 bored softnet1 73238 360735 0 0 3 0x14200 bored softnet0 20649 279344 0 0 3 0x14200 bored systqmp 90849 124156 0 0 3 0x14200 bored systq 35321 67453 0 0 3 0x40014200 tmoslp softclock 59997 371903 0 0 3 0x40014200 idle0 1 471978 0 0 3 0x8000082 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 10182 6430K 6879K 166960K 16945 0 pcb 18 16K 18K 166960K 499 0 rtable 245 9K 10K 166960K 3891 0 pf 29 8K 9K 166960K 280 0 ifaddr 43 13K 14K 166960K 467 0 ifgroup 50 2K 2K 166960K 527 0 sysctl 4 1K 2K 166960K 86 0 counters 30 17K 17K 166960K 147 0 ioctlops 0 0K 2K 166960K 404 0 iov 0 0K 16K 166960K 133 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1478 93K 93K 166960K 5370 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 62 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 186 0 dirhash 12 2K 2K 166960K 105 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 13 45K 113K 166960K 3965 0 sigio 0 0K 0K 166960K 138 0 proc 59 67K 124K 166960K 3305 0 subproc 104 6K 9K 166960K 1483 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 607 0 in_multi 99 7K 7K 166960K 1229 0 ether_multi 1 0K 0K 166960K 15 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 1856 0 pfkey data 0 0K 0K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 261 116K 152K 166960K 32286 0 UVM aobj 106 6K 6K 166960K 126 0 pinsyscall 33 66K 102K 166960K 7705 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 210 0 NDP 11 0K 2K 166960K 338 0 temp 75 6812K 6892K 166960K 160955 0 kqueue 13 20K 29K 166960K 405 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 120 518 0 515 2 1 1 2 0 8 0 rtentry 112 1412 0 1301 4 0 4 4 0 8 0 unpcb 144 2003 0 1990 9 3 6 6 0 8 5 syncache 336 17 0 17 2 1 1 1 0 8 1 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 72 0 72 2 1 1 1 0 8 1 tcpcb 808 840 0 832 9 4 5 5 0 8 3 arp 88 300 0 282 1 0 1 1 0 8 0 ipq 40 10 0 10 1 0 1 1 0 8 1 ipqe 40 90 0 90 1 0 1 1 0 8 1 inpcb 352 3724 0 3711 24 14 10 13 0 8 8 nd6 104 330 0 305 1 0 1 1 0 8 0 pkpcb 40 15 0 15 2 1 1 1 0 8 1 kcovpl 48 114 0 106 1 0 1 1 0 8 0 ppxss 1072 7 0 7 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4969 0 4511 92 63 29 30 0 8 0 art_table 32 4970 0 4511 4 0 4 4 0 8 0 art_node 16 1382 0 1281 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 6 1 0 1 1 0 8 0 semapl 112 184 0 174 1 0 1 1 0 8 0 shmpl 112 123 0 20 3 0 3 3 0 8 0 dirhash 1024 79 0 62 3 0 3 3 0 8 0 dino2pl 256 6491 0 4966 96 0 96 96 0 8 0 ffsino 240 6491 0 4966 91 0 91 91 0 8 0 nchpl 144 11172 0 10579 66 41 25 66 0 8 0 uvmvnodes 80 9569 0 0 196 0 196 196 0 8 0 vnodes 216 9569 0 0 532 0 532 532 0 8 0 namei 1024 49522 0 49518 3 1 2 2 0 8 1 vcpupl 3904 7 0 0 1 0 1 1 0 8 0 vmpool 664 24 0 17 1 0 1 1 0 8 0 kstatmem 264 256 0 234 2 0 2 2 0 8 0 scsiplug 72 17 0 17 2 1 1 1 0 8 1 scxspl 216 69488 0 69488 9 7 2 8 1 8 2 plimitpl 152 447 0 432 1 0 1 1 0 8 0 sigapl 424 4075 0 4013 9 0 9 9 0 8 0 futexpl 64 43989 0 43986 1 0 1 1 0 8 0 knotepl 120 13928 0 13844 25 14 11 18 0 8 7 kqueuepl 184 942 0 933 7 3 4 4 0 8 3 pipepl 288 829 0 800 3 0 3 3 0 8 0 fdescpl 432 4037 0 4013 6 1 5 5 0 8 1 filepl 120 24922 0 24672 20 5 15 15 0 8 6 lockfpl 104 632 0 630 1 0 1 1 0 8 0 lockfspl 48 294 0 292 1 0 1 1 0 8 0 sessionpl 144 122 0 106 1 0 1 1 0 8 0 pgrppl 48 179 0 163 1 0 1 1 0 8 0 ucredpl 104 3911 0 3900 1 0 1 1 0 8 0 zombiepl 144 4014 0 4013 1 0 1 1 0 8 0 processpl 1072 4075 0 4013 6 0 6 6 0 8 0 procpl 656 7346 0 7264 9 0 9 9 0 8 1 sosppl 168 46 0 46 2 1 1 1 0 8 1 sockpl 504 6278 0 6250 69 57 12 34 0 8 8 mcl64k 65536 24 0 24 2 1 1 1 0 8 1 mcl16k 16384 4 0 4 1 1 0 1 0 8 0 mcl12k 12288 5 0 5 1 1 0 1 0 8 0 mcl8k 8192 130 0 130 2 1 1 1 0 8 1 mcl4k 4096 12 0 12 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 42172 0 42074 43 24 19 37 0 8 4 mtagpl 96 114 0 109 1 0 1 1 0 8 0 mbufpl 256 135510 0 135271 99 77 22 65 0 8 4 bufpl 280 14434 0 4865 684 0 684 684 0 8 0 anonpl 24 560859 0 554860 98 27 71 88 0 188 5 amapchunkpl 152 101852 0 101249 57 15 42 44 0 158 11 amappl16 200 11622 0 11508 44 25 19 31 0 8 8 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 445 0 434 2 1 1 2 0 8 0 amappl13 176 70 0 69 1 0 1 1 0 8 0 amappl12 168 6103 0 6079 2 0 2 2 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 148 0 139 1 0 1 1 0 8 0 amappl9 144 137 0 137 1 1 0 1 0 8 0 amappl8 136 463 0 430 2 0 2 2 0 8 0 amappl7 128 55 0 40 1 0 1 1 0 8 0 amappl6 120 1564 0 1550 2 1 1 2 0 8 0 amappl5 112 566 0 553 1 0 1 1 0 8 0 amappl4 104 1091 0 1061 3 1 2 2 0 8 1 amappl3 96 19299 0 19237 3 0 3 3 0 8 0 amappl2 88 4719 0 4651 4 2 2 4 0 8 0 amappl1 80 27460 0 26976 23 10 13 22 0 8 2 amappl 88 30923 0 30752 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 72 125 0 20 2 0 2 2 0 8 0 uaddrrnd 24 4061 0 4030 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4061 0 4030 1 0 1 1 0 8 0 vmmpekpl 168 34316 0 34264 4 0 4 4 0 8 0 vmmpepl 168 283279 0 281613 126 26 100 114 0 357 14 vmsppl 344 4060 0 4030 5 0 5 5 0 8 1 rwobjpl 24 78350 0 67648 65 0 65 65 0 8 0 pdppl 4096 8128 0 8067 435 364 71 94 0 8 10 pvpl 32 1644650 0 1632860 445 261 184 392 0 265 43 pmappl 216 4060 0 4030 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 956 0 597 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a6a8d08,ffff80002daffcc0,ffff80002daffc10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002daffcc0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ab060fb220, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6a8d08,deaf4152deaf4152,0,e000043e,fffffd8061d482d8,fffffd807f7d77b8) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061d482d8,4,6000043e,ffffffff,ffff80002a6a8d08) at doktrace+0x414 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a6a8d08,ffff80002daffcc0,ffff80002daffc10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002daffcc0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ab060fb220, count: -5