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(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6c8008,ffff80002a6b50e0,ffff80002a6b5030) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a6b50e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d6611fa7a0, count: -5 ddb> show registers rdi 0xffff8000341b2000 rsi 0x1bf5 __ALIGN_SIZE+0xbf5 rbp 0xffff80002a6b4e10 rbx 0xfffffd807f7d7680 rdx 0xffff8000341b2000 rcx 0x1bf4 __ALIGN_SIZE+0xbf4 rax 0xffffffff8227a743 ktrops+0x43 r8 0xfffffd8067714cb0 r9 0xfffffd807f7d7680 r10 0x7e1f8baccf586acc r11 0x64198ea61e0f18ac r12 0xffff80002a6c8008 r13 0xdeadbeefdeadbeef r14 0xdeadbeefdeadbeef r15 0xc000101c rip 0xffffffff8227a74f ktrops+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a6b4d90 ss 0 ktrops+0x4f: movq 0x8(%r14),%r14 ddb> show proc PROC (syz-executor.1) tid=492315 pid=66184 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a6c8d50,0xffffffff82e14630 process=0xffff8000ffff8c98 user=0xffff80002a6b0000, vmspace=0xfffffd80799c88a0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 66184 462453 58546 0 2 0 syz-executor.1 *66184 492315 58546 0 7 0x4000000 syz-executor.1 54864 430275 40784 0 2 0x2 syz-executor.0 19294 306383 40784 0 2 0x2 syz-executor.7 1536 319848 40784 0 2 0x2 syz-executor.3 93522 217861 40784 0 2 0x2 syz-executor.2 52977 522195 40784 0 2 0x2 syz-executor.4 87485 267850 40784 0 2 0x2 syz-executor.5 58546 207285 40784 0 3 0x82 nanoslp syz-executor.1 43005 245670 40784 0 3 0x2 biowait syz-executor.6 26510 450747 1 0 3 0x18100083 ttyopn getty 53218 126902 0 0 3 0x14200 bored sosplice 40784 517784 58612 0 3 0x1a000082 wait syz-fuzzer 40784 231050 58612 0 3 0x1e000082 nanoslp syz-fuzzer 40784 364070 58612 0 3 0x1e000082 wait syz-fuzzer 40784 443311 58612 0 3 0x1e000082 thrsleep syz-fuzzer 40784 185479 58612 0 3 0x1e000082 kqread syz-fuzzer 40784 160839 58612 0 3 0x1e000082 thrsleep syz-fuzzer 40784 460979 58612 0 3 0x1e000082 wait syz-fuzzer 40784 476194 58612 0 3 0x1e000082 wait syz-fuzzer 40784 429183 58612 0 3 0x1e000082 wait syz-fuzzer 40784 181991 58612 0 3 0x1e000082 wait syz-fuzzer 40784 140279 58612 0 3 0x1e000082 thrsleep syz-fuzzer 40784 486089 58612 0 3 0x1e000082 wait syz-fuzzer 40784 247461 58612 0 3 0x1e000082 thrsleep syz-fuzzer 40784 336358 58612 0 3 0x1e000082 wait syz-fuzzer 58612 470529 32510 0 3 0x810008a sigsusp ksh 32510 163242 92247 0 3 0x1800009a kqread sshd 92247 407620 1 0 3 0x18000088 kqread sshd 42513 232978 25755 73 3 0x19100090 kqread syslogd 25755 223451 1 0 3 0x18100082 netio syslogd 17960 523489 1 0 3 0x18100080 kqread resolvd 9619 25099 51409 77 3 0x18100092 kqread dhcpleased 7509 106644 51409 77 3 0x18100092 kqread dhcpleased 51409 328496 1 0 3 0x18000080 kqread dhcpleased 22630 516612 0 0 3 0x14200 bored smr 85812 92534 0 0 2 0x14200 zerothread 35495 105816 0 0 3 0x14200 aiodoned aiodoned 97932 334732 0 0 3 0x14200 syncer update 72315 174637 0 0 3 0x14200 cleaner cleaner 14988 226745 0 0 3 0x14200 reaper reaper 9122 68626 0 0 3 0x14200 pgdaemon pagedaemon 52794 132430 0 0 3 0x14200 bored viomb 6519 165469 0 0 3 0x40014200 acpi0 acpi0 83836 119956 0 0 3 0x14200 bored softnet3 48086 368663 0 0 3 0x14200 bored softnet2 21086 473600 0 0 3 0x14200 bored softnet1 12402 221290 0 0 3 0x14200 bored softnet0 40390 128877 0 0 3 0x14200 bored systqmp 6580 215639 0 0 3 0x14200 bored systq 94327 406751 0 0 3 0x40014200 tmoslp softclock 95145 118146 0 0 3 0x40014200 idle0 1 334038 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 10194 6409K 15113K 166960K 32431 0 pcb 15 20K 22K 166960K 877 0 rtable 196 10K 11K 166960K 2690 0 pf 27 8K 10K 166960K 381 0 ifaddr 38 12K 15K 166960K 358 0 ifgroup 46 2K 2K 166960K 550 0 sysctl 3 0K 0K 166960K 5 0 counters 29 17K 17K 166960K 194 0 ioctlops 0 0K 2K 166960K 645 0 iov 0 0K 24K 166960K 965 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1491 94K 94K 166960K 7534 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 115 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 1240 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 37K 81K 166960K 9160 0 sigio 0 0K 0K 166960K 495 0 proc 58 59K 83K 166960K 2081 0 subproc 104 6K 6K 166960K 701 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1568 0 in_multi 77 5K 7K 166960K 644 0 ether_multi 1 0K 0K 166960K 4 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 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 1594 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 403 371K 373K 166960K 84445 0 UVM aobj 131 4K 4K 166960K 135 0 pinsyscall 22 44K 100K 166960K 2717 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 186 0 NDP 10 0K 2K 166960K 283 0 temp 74 6804K 6932K 166960K 67452 0 kqueue 12 18K 28K 166960K 690 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 120 623 0 620 5 2 3 3 0 8 2 rtentry 112 956 0 868 4 0 4 4 0 8 0 unpcb 144 7587 0 7574 17 8 9 12 0 8 8 syncache 336 86 0 86 2 1 1 1 0 8 1 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 188 0 188 2 1 1 1 0 8 1 tcpcb 808 2919 0 2914 21 12 9 14 0 8 8 arp 88 226 0 212 1 0 1 1 0 8 0 ipq 40 11 0 8 1 0 1 1 0 8 0 ipqe 40 283 0 279 1 0 1 1 0 8 0 inpcb 360 7956 0 7948 49 40 9 17 0 8 8 nd6 104 164 0 146 1 0 1 1 0 8 0 kcovpl 48 53 0 45 1 0 1 1 0 8 0 ppxss 1072 91 0 91 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3074 0 2702 46 17 29 30 0 8 2 art_table 32 3075 0 2702 4 0 4 4 0 8 0 art_node 16 949 0 869 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 1231 0 1221 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 13210 0 11663 98 0 98 98 0 8 0 ffsino 240 13210 0 11663 92 0 92 92 0 8 0 nchpl 144 25208 0 23497 66 0 66 66 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 87302 0 87301 4 2 2 3 0 8 1 vcpupl 2048 111 0 0 14 0 14 14 0 8 0 vmpool 664 123 0 12 10 0 10 10 0 8 0 kstatmem 264 350 0 330 2 0 2 2 0 8 0 scxspl 216 82518 0 82517 11 7 4 8 1 8 3 plimitpl 152 1054 0 1039 1 0 1 1 0 8 0 sigapl 424 9662 0 9623 8 0 8 8 0 8 1 futexpl 64 81972 0 81972 1 0 1 1 0 8 1 knotepl 120 81935 0 81853 11 0 11 11 0 8 7 kqueuepl 184 2061 0 2053 10 3 7 7 0 8 6 pipepl 288 1748 0 1720 12 4 8 8 0 8 5 fdescpl 432 9344 0 9322 4 0 4 4 0 8 0 filepl 120 57373 0 57137 27 11 16 17 0 8 8 lockfpl 104 2958 0 2956 3 1 2 2 0 8 1 lockfspl 48 1135 0 1133 1 0 1 1 0 8 0 sessionpl 144 70 0 54 1 0 1 1 0 8 0 pgrppl 48 470 0 454 1 0 1 1 0 8 0 ucredpl 104 7047 0 7034 1 0 1 1 0 8 0 zombiepl 144 9623 0 9623 1 0 1 1 0 8 1 processpl 1072 9662 0 9623 5 0 5 5 0 8 1 procpl 680 22715 0 22662 9 0 9 9 0 8 1 sosppl 168 95 0 95 2 1 1 1 0 8 1 sockpl 488 16176 0 16152 302 291 11 42 0 8 8 mcl64k 65536 354 0 354 2 1 1 1 0 8 1 mcl16k 16384 180 0 180 2 1 1 1 0 8 1 mcl12k 12288 343 0 343 2 1 1 1 0 8 1 mcl9k 9216 154 0 154 2 1 1 1 0 8 1 mcl8k 8192 694 0 694 2 1 1 1 0 8 1 mcl4k 4096 937 0 937 5 1 4 4 0 8 4 mcl2k2 2112 52 0 52 2 1 1 1 0 8 1 mcl2k 2048 91921 0 91861 58 43 15 33 0 8 6 mtagpl 96 2387 0 2322 18 8 10 18 0 8 5 mbufpl 256 217872 0 217721 108 80 28 86 0 8 8 bufpl 280 20585 0 14247 453 0 453 453 0 8 0 anonpl 24 942648 0 928248 161 1 160 160 0 188 61 amapchunkpl 152 268053 0 267301 69 2 67 67 0 158 30 amappl16 200 17980 0 17511 46 12 34 38 0 8 8 amappl15 192 83 0 81 1 0 1 1 0 8 0 amappl14 184 282 0 271 2 1 1 2 0 8 0 amappl13 176 22 0 22 2 1 1 1 0 8 1 amappl12 168 10639 0 10615 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 83 0 71 1 0 1 1 0 8 0 amappl9 144 209 0 208 1 0 1 1 0 8 0 amappl8 136 422 0 344 3 0 3 3 0 8 0 amappl7 128 78 0 64 1 0 1 1 0 8 0 amappl6 120 947 0 926 2 1 1 2 0 8 0 amappl5 112 505 0 493 1 0 1 1 0 8 0 amappl4 104 911 0 880 2 1 1 2 0 8 0 amappl3 96 52672 0 52615 3 0 3 3 0 8 0 amappl2 88 10203 0 10137 4 1 3 4 0 8 0 amappl1 80 44412 0 43932 22 11 11 22 0 8 0 amappl 88 83287 0 83075 7 0 7 7 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 9467 0 9334 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9467 0 9334 1 0 1 1 0 8 0 vmmpekpl 168 67381 0 67297 4 0 4 4 0 8 0 vmmpepl 168 576162 0 574048 162 33 129 134 0 357 9 vmsppl 352 9466 0 9334 13 0 13 13 0 8 0 rwobjpl 24 137188 0 129666 48 0 48 48 0 8 1 pdppl 4096 18940 0 18779 701 528 173 175 0 8 12 pvpl 32 2607880 0 2588297 485 193 292 358 0 265 115 pmappl 216 9466 0 9334 8 0 8 8 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1183 0 693 15 0 15 15 0 8 1 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6c8008,ffff80002a6b50e0,ffff80002a6b5030) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a6b50e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d6611fa7a0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6c8008,deadbeefdeadbeef,0,c000101c,fffffd8067714cb0,fffffd807f7d7680) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067714cb0,4,4000101c,0,ffff80002a6c8008) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6c8008,ffff80002a6b50e0,ffff80002a6b5030) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a6b50e0) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d6611fa7a0, count: -5