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(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a64e018,ffff80002c069360,ffff80002c0693b0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c069420) at syscall+0x543 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xedd3cc95840, count: -5 ddb> show registers rdi 0xffff80002a64e018 rsi 0xdeadbeefdeadbeef rbp 0xffff80002c069150 rbx 0xdeadbeefdeadbeef rdx 0 rcx 0xc0000004 rax 0xffff80002a64e018 r8 0xfffffd807a11d970 r9 0xfffffd807f7d77b8 r10 0xb70a8210e4b5099a r11 0x8e347d8d6d2463a2 r12 0xffff80002a5cfb90 r13 0xfffffd807f7d77b8 r14 0xffff80002a64e018 r15 0xc0000004 rip 0xffffffff81aea90e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002c0690d0 ss 0 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor.5) tid=248097 pid=43518 tcnt=3 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=78, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a64f008 forw=0xffffffffffffffff, list=0xffff80002a64f558,0xffff80002a64f018 process=0xffff80002a6947f0 user=0xffff80002c064000, vmspace=0xfffffd8067e41d00 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *43518 248097 94382 0 7 0x4081000 syz-executor.5 43518 449580 94382 0 3 0x4003000 suspend syz-executor.5 73789 208403 23866 0 2 0 syz-executor.0 73789 383140 23866 0 3 0x4000080 fsleep syz-executor.0 73789 463694 23866 0 3 0x4000080 fsleep syz-executor.0 73789 413475 23866 0 3 0x4000080 fsleep syz-executor.0 31196 41848 18484 0 3 0x3000 suspend syz-executor.4 31196 397454 18484 0 2 0x4081000 syz-executor.4 31053 115687 50773 0 3 0x90 nanoslp syz-executor.6 31053 7286 50773 0 3 0x4000090 fsleep syz-executor.6 17489 87410 34054 0 3 0x82 nanoslp syz-executor.3 18484 139183 34054 0 3 0x82 nanoslp syz-executor.4 2461 26854 34054 0 2 0x2 syz-executor.7 49629 334681 34054 0 3 0x82 nanoslp syz-executor.1 9289 252929 34054 0 3 0x82 nanoslp syz-executor.2 23866 158958 34054 0 3 0x82 nanoslp syz-executor.0 94382 259115 34054 0 3 0x82 nanoslp syz-executor.5 28069 252269 0 0 3 0x14280 nfsidl nfsio 11787 288188 0 0 3 0x14280 nfsidl nfsio 19882 451897 0 0 3 0x14280 nfsidl nfsio 13348 103184 0 0 3 0x14280 nfsidl nfsio 14740 363996 0 0 3 0x14280 nfsidl nfsio 39333 30489 0 0 3 0x14280 nfsidl nfsio 90283 226667 0 0 3 0x14280 nfsidl nfsio 55731 425622 0 0 3 0x14280 nfsidl nfsio 90603 297751 0 0 3 0x14280 nfsidl nfsio 60182 296380 0 0 3 0x14280 nfsidl nfsio 99429 232967 0 0 3 0x14280 nfsidl nfsio 3519 372550 0 0 3 0x14280 nfsidl nfsio 36605 124608 0 0 3 0x14280 nfsidl nfsio 44320 176431 0 0 3 0x14280 nfsidl nfsio 80262 84446 0 0 3 0x14280 nfsidl nfsio 27821 302332 0 0 3 0x14280 nfsidl nfsio 71574 413533 0 0 3 0x14280 nfsidl nfsio 44520 242578 0 0 3 0x14280 nfsidl nfsio 22021 453535 0 0 3 0x14280 nfsidl nfsio 46938 347385 0 0 3 0x14280 nfsidl nfsio 50773 239501 34054 0 3 0x82 nanoslp syz-executor.6 61274 27257 0 0 3 0x14200 bored sosplice 34054 499677 88155 0 3 0x2000082 wait syz-fuzzer 34054 55669 88155 0 3 0x6000082 nanoslp syz-fuzzer 34054 443086 88155 0 3 0x6000082 thrsleep syz-fuzzer 34054 310496 88155 0 3 0x6000082 wait syz-fuzzer 34054 24294 88155 0 3 0x6000082 thrsleep syz-fuzzer 34054 474660 88155 0 3 0x6000082 thrsleep syz-fuzzer 34054 118154 88155 0 3 0x6000082 wait syz-fuzzer 34054 506961 88155 0 3 0x6000082 wait syz-fuzzer 34054 388812 88155 0 2 0x6000002 syz-fuzzer 34054 472037 88155 0 3 0x6000082 wait syz-fuzzer 34054 272078 88155 0 3 0x6000082 thrsleep syz-fuzzer 34054 135095 88155 0 3 0x6000082 wait syz-fuzzer 34054 391915 88155 0 3 0x6000082 wait syz-fuzzer 34054 438215 88155 0 3 0x6000082 wait syz-fuzzer 88155 259897 32427 0 3 0x10008a sigsusp ksh 32427 331324 41381 0 3 0x9a kqread sshd 46517 46570 1 0 3 0x100083 ttyin getty 41381 78070 1 0 3 0x88 kqread sshd 43929 343102 37092 73 3 0x1100090 kqread syslogd 37092 524150 1 0 3 0x100082 netio syslogd 92815 106359 1 0 3 0x100080 kqread resolvd 18615 1697 2023 77 3 0x100092 kqread dhcpleased 60238 435592 2023 77 3 0x100092 kqread dhcpleased 2023 378249 1 0 3 0x80 kqread dhcpleased 87823 341084 0 0 3 0x14200 bored smr 70850 280863 0 0 2 0x14200 zerothread 33015 406706 0 0 3 0x14200 aiodoned aiodoned 17226 413093 0 0 3 0x14200 syncer update 5410 253190 0 0 3 0x14200 cleaner cleaner 46607 380025 0 0 3 0x14200 reaper reaper 6748 508835 0 0 3 0x14200 pgdaemon pagedaemon 57812 445794 0 0 3 0x14200 bored viomb 84987 396190 0 0 3 0x40014200 acpi0 acpi0 35176 64972 0 0 3 0x14200 bored softnet3 33590 112372 0 0 3 0x14200 bored softnet2 90207 178569 0 0 3 0x14200 bored softnet1 81595 308626 0 0 3 0x14200 bored softnet0 67179 109180 0 0 3 0x14200 bored systqmp 53321 96933 0 0 3 0x14200 bored systq 17039 49676 0 0 3 0x40014200 tmoslp softclock 76870 334991 0 0 3 0x40014200 idle0 1 393520 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 10181 6419K 6938K 166960K 17310 0 pcb 13 15K 17K 166960K 479 0 rtable 222 14K 15K 166960K 1142 0 pf 31 9K 10K 166960K 158 0 ifaddr 41 11K 11K 166960K 155 0 ifgroup 52 2K 2K 166960K 233 0 sysctl 3 1K 1K 166960K 5 0 counters 31 17K 17K 166960K 89 0 ioctlops 0 0K 2K 166960K 295 0 iov 0 0K 24K 166960K 813 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1448 90K 91K 166960K 3626 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 57 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 14 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 69K 166960K 4681 0 sigio 0 0K 0K 166960K 147 0 proc 59 59K 83K 166960K 1008 0 subproc 104 6K 6K 166960K 286 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 173 0 in_multi 88 6K 7K 166960K 300 0 ether_multi 1 0K 0K 166960K 7 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 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 1300 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 378 238K 251K 166960K 44646 0 UVM aobj 131 4K 4K 166960K 153 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 108 0 NDP 12 0K 2K 166960K 117 0 temp 74 5920K 6184K 166960K 43331 0 kqueue 13 20K 28K 166960K 484 0 SYN cache 2 1236K 1244K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 315 0 312 2 1 1 2 0 8 0 rtentry 112 302 0 201 4 1 3 4 0 8 0 unpcb 144 3636 0 3621 35 34 1 6 0 8 0 syncache 312 58 0 58 8 8 0 1 0 8 0 tcpqe 32 180 0 180 8 8 0 1 0 8 0 tcpcb 808 1544 0 1523 57 52 5 15 0 8 0 arp 88 53 0 36 1 0 1 1 0 8 0 ipq 40 16 0 16 3 3 0 1 0 8 0 ipqe 40 38 0 38 3 3 0 1 0 8 0 inpcb 336 3706 0 3679 70 60 10 14 0 8 6 nd6 104 74 0 52 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 2 0 1 0 8 0 kcovpl 48 22 0 14 1 0 1 1 0 8 0 ppxss 1160 32 0 31 6 5 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1234 0 808 41 14 27 29 0 8 0 art_table 32 1235 0 808 5 1 4 4 0 8 0 art_node 16 297 0 205 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 3 1 0 1 1 0 8 0 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 150 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 7538 0 6066 93 0 93 93 0 8 0 ffsino 240 7538 0 6066 87 0 87 87 0 8 0 nchpl 144 15332 0 13672 63 0 63 63 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 51953 0 51953 8 7 1 3 0 8 1 vcpupl 2048 51 0 0 7 0 7 7 0 8 0 vmpool 664 111 0 60 5 0 5 5 0 8 0 kstatmem 264 140 0 116 2 0 2 2 0 8 0 scxspl 216 41582 0 41582 18 16 2 8 1 8 2 plimitpl 152 572 0 557 1 0 1 1 0 8 0 sigapl 424 4969 0 4904 8 0 8 8 0 8 0 futexpl 64 44829 0 44825 2 1 1 1 0 8 0 knotepl 120 47758 0 47678 35 32 3 17 0 8 0 kqueuepl 184 1971 0 1961 12 11 1 4 0 8 0 pipepl 288 1831 0 1803 27 24 3 9 0 8 0 fdescpl 432 4932 0 4907 4 0 4 4 0 8 0 filepl 120 35092 0 34851 54 44 10 18 0 8 2 lockfpl 104 1226 0 1224 3 2 1 2 0 8 0 lockfspl 48 426 0 424 1 0 1 1 0 8 0 sessionpl 144 37 0 21 1 0 1 1 0 8 0 pgrppl 48 216 0 200 1 0 1 1 0 8 0 ucredpl 104 3765 0 3751 1 0 1 1 0 8 0 zombiepl 144 4909 0 4904 4 3 1 1 0 8 0 processpl 1008 4969 0 4904 10 1 9 9 0 8 0 procpl 680 11713 0 11628 11 3 8 9 0 8 0 sosppl 168 60 0 57 4 3 1 1 0 8 0 sockpl 456 7735 0 7692 186 172 14 38 0 8 6 mcl64k 65536 144 0 144 9 9 0 1 0 8 0 mcl16k 16384 89 0 89 12 12 0 1 0 8 0 mcl12k 12288 151 0 151 10 9 1 1 0 8 1 mcl9k 9216 69 0 69 10 10 0 1 0 8 0 mcl8k 8192 282 0 282 8 8 0 1 0 8 0 mcl4k 4096 441 0 441 7 6 1 1 0 8 1 mcl2k2 2112 28 0 28 12 11 1 1 0 8 1 mcl2k 2048 76023 0 75979 33 26 7 26 0 8 0 mtagpl 96 709 0 630 11 6 5 6 0 8 0 mbufpl 256 164767 0 164540 332 309 23 75 0 8 0 bufpl 288 12839 0 6445 458 0 458 458 0 8 0 anonpl 24 594297 0 581637 149 42 107 114 0 188 11 amapchunkpl 152 143828 0 142940 92 53 39 46 0 158 0 amappl16 200 13206 0 12796 59 36 23 35 0 8 1 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 186 0 175 2 1 1 2 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 5765 0 5737 2 0 2 2 0 8 0 amappl11 160 48 0 37 1 0 1 1 0 8 0 amappl10 152 45 0 35 1 0 1 1 0 8 0 amappl9 144 161 0 160 2 1 1 1 0 8 0 amappl8 136 315 0 239 3 0 3 3 0 8 0 amappl7 128 210 0 188 2 0 2 2 0 8 0 amappl6 120 484 0 475 1 0 1 1 0 8 0 amappl5 112 214 0 205 1 0 1 1 0 8 0 amappl4 104 562 0 542 2 1 1 2 0 8 0 amappl3 96 28206 0 28120 3 0 3 3 0 8 0 amappl2 88 5581 0 5507 3 0 3 3 0 8 0 amappl1 80 26478 0 25970 22 10 12 22 0 8 0 amappl 88 43906 0 43671 8 1 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 72 152 0 22 3 0 3 3 0 8 0 uaddrrnd 24 5043 0 4967 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5043 0 4967 1 0 1 1 0 8 0 vmmpekpl 168 40995 0 40915 4 0 4 4 0 8 0 vmmpepl 168 307672 0 305487 180 66 114 115 0 357 8 vmsppl 368 5042 0 4967 10 2 8 8 0 8 0 rwobjpl 24 82300 0 74788 47 0 47 47 0 8 0 pdppl 4096 10092 0 9985 382 267 115 116 0 8 8 pvpl 32 1504547 0 1486973 429 240 189 341 0 265 22 pmappl 216 5042 0 4967 5 0 5 5 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1667 0 809 27 1 26 26 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a64e018,ffff80002c069360,ffff80002c0693b0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c069420) at syscall+0x543 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xedd3cc95840, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a64e018,deadbeefdeadbeef,0,c0000004,fffffd807a11d970,fffffd807f7d77b8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807a11d970,4,40000004,ffffffff,ffff80002a64e018) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a64e018,ffff80002c069360,ffff80002c0693b0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c069420) at syscall+0x543 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xedd3cc95840, count: -5