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(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6b5540,ffff800030f5fc70,ffff800030f5fbc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff800030f5fc70) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa15a16a8950, count: -5 ddb> show registers rdi 0xffff80002db0c000 rsi 0xdfe rbp 0xffff800030f5f990 rbx 0xdeadbeefdeadbeef rdx 0xffff80002db0c000 rcx 0xdfd rax 0xffffffff818f8623 ktrops+0x43 r8 0xfffffd806d6158d0 r9 0xfffffd807f7d7a28 r10 0xd7d48b8dc401246d r11 0xaf116ac46149f639 r12 0xdeadbeefdeadbeef r13 0xfffffd807f7d7a28 r14 0xffff80002a6b5540 r15 0x8000001e __kernel_virt_to_phys+0x1e rip 0xffffffff818f862e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800030f5f910 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor.5) tid=90369 pid=96189 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=81, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a6b4d48,0xffff80002a6b42b8 process=0xffff8000ffff90c8 user=0xffff800030f5a000, vmspace=0xfffffd8067859de8 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 95142 324182 93973 0 3 0x80 fsleep syz-executor.1 95142 516385 93973 0 3 0x4000080 netio syz-executor.1 92686 336895 0 0 2 0x14280 nfsio 10974 393425 0 0 2 0x14280 nfsio 39836 227146 0 0 2 0x14280 nfsio 34084 24183 0 0 2 0x14280 nfsio 289 85442 0 0 2 0x14280 nfsio 61555 379280 0 0 2 0x14280 nfsio 36936 162339 0 0 2 0x14280 nfsio 13789 190367 0 0 2 0x14280 nfsio 25494 342628 0 0 2 0x14280 nfsio 72034 246561 0 0 2 0x14280 nfsio 53211 435556 0 0 2 0x14280 nfsio 68750 459535 0 0 2 0x14280 nfsio 30245 297926 0 0 2 0x14280 nfsio 73113 166102 0 0 2 0x14280 nfsio 89203 212612 0 0 2 0x14280 nfsio 19368 84601 0 0 2 0x14280 nfsio 48012 278211 0 0 2 0x14280 nfsio 22712 145867 0 0 2 0x14280 nfsio 46121 451219 37317 0 3 0x80 fsleep syz-executor.6 46121 230928 37317 0 3 0x4000080 fsleep syz-executor.6 46121 468401 37317 0 3 0x4000080 kqpoll syz-executor.6 28504 176709 89997 0 2 0x10 syz-executor.7 28504 49796 89997 0 3 0x4000090 fsleep syz-executor.7 28504 266515 89997 0 2 0x4000010 syz-executor.7 33291 52726 23729 0 3 0x80 fsleep syz-executor.4 33291 297266 23729 0 2 0x4000000 syz-executor.4 96189 251591 15957 0 3 0x80 fsleep syz-executor.5 *96189 90369 15957 0 7 0x4000000 syz-executor.5 40038 122548 86668 0 2 0 syz-executor.0 40038 415255 86668 0 3 0x4000080 fsleep syz-executor.0 40038 191878 86668 0 3 0x4000080 fsleep syz-executor.0 92316 321518 75349 0 3 0x80 fsleep syz-executor.3 92316 290735 75349 0 2 0x4000000 syz-executor.3 92316 383382 75349 0 3 0x4000000 inode syz-executor.3 71776 6464 267 0 2 0x480 syz-executor.2 71776 153255 267 0 2 0x4000000 syz-executor.2 71776 267724 267 0 2 0x4000000 syz-executor.2 71776 518209 267 0 2 0x4000000 syz-executor.2 71776 304900 267 0 2 0x4000000 syz-executor.2 86668 391022 90143 0 2 0x482 syz-executor.0 15957 514648 90143 0 2 0x482 syz-executor.5 23729 180906 90143 0 2 0x482 syz-executor.4 89997 64011 90143 0 2 0x482 syz-executor.7 63199 478899 1 0 3 0x80 fsleep syz-executor.7 63199 503804 1 0 3 0x4000080 kqread syz-executor.7 267 198910 90143 0 2 0x482 syz-executor.2 37317 34099 90143 0 2 0x482 syz-executor.6 93973 289604 90143 0 2 0x482 syz-executor.1 94683 26207 0 0 3 0x14200 bored sosplice 75349 363984 90143 0 2 0x482 syz-executor.3 90143 29700 71028 0 3 0x2000082 kqread syz-fuzzer 90143 7445 71028 0 2 0x6000482 syz-fuzzer 90143 141144 71028 0 3 0x6000082 wait syz-fuzzer 90143 88582 71028 0 3 0x6000082 wait syz-fuzzer 90143 243162 71028 0 3 0x6000082 wait syz-fuzzer 90143 73249 71028 0 3 0x6000082 thrsleep syz-fuzzer 90143 154503 71028 0 3 0x6000082 thrsleep syz-fuzzer 90143 172364 71028 0 3 0x6000082 wait syz-fuzzer 90143 476923 71028 0 3 0x6000082 wait syz-fuzzer 90143 158858 71028 0 3 0x6000082 thrsleep syz-fuzzer 90143 224950 71028 0 3 0x6000082 wait syz-fuzzer 90143 150151 71028 0 3 0x6000082 wait syz-fuzzer 90143 344069 71028 0 3 0x6000082 wait syz-fuzzer 90143 180508 71028 0 3 0x6000082 thrsleep syz-fuzzer 71028 215994 16323 0 3 0x10008a sigsusp ksh 16323 330052 40877 0 3 0x9a kqread sshd 62176 16267 1 0 3 0x100083 ttyin getty 40877 476946 1 0 3 0x88 kqread sshd 9779 309752 71533 73 2 0x1100010 syslogd 71533 246708 1 0 3 0x100082 netio syslogd 40826 478849 1 0 3 0x100080 kqread resolvd 48534 421340 1834 77 3 0x100092 kqread dhcpleased 134 414517 1834 77 3 0x100092 kqread dhcpleased 1834 227330 1 0 3 0x80 kqread dhcpleased 62369 80368 0 0 3 0x14200 bored smr 78215 74591 0 0 2 0x14200 zerothread 68493 171181 0 0 3 0x14200 aiodoned aiodoned 22327 68289 0 0 3 0x14200 syncer update 59326 504916 0 0 3 0x14200 cleaner cleaner 44173 220493 0 0 3 0x14200 reaper reaper 6939 43936 0 0 3 0x14200 pgdaemon pagedaemon 45039 354896 0 0 3 0x14200 bored viomb 351 77296 0 0 3 0x40014200 acpi0 acpi0 14255 142358 0 0 3 0x14200 bored softnet3 65525 324228 0 0 3 0x14200 bored softnet2 54366 36704 0 0 3 0x14200 bored softnet1 33502 301835 0 0 3 0x14200 bored softnet0 19115 330685 0 0 3 0x14200 bored systqmp 14920 444282 0 0 3 0x14200 bored systq 29054 326214 0 0 2 0x40014200 softclock 61840 267160 0 0 3 0x40014200 idle0 1 183956 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 10173 6409K 7251K 166960K 17355 0 pcb 15 14K 16K 166960K 192 0 rtable 201 14K 16K 166960K 875 0 pf 29 8K 9K 166960K 119 0 ifaddr 37 10K 12K 166960K 128 0 ifgroup 50 2K 2K 166960K 194 0 sysctl 2 0K 0K 166960K 4 0 counters 30 17K 17K 166960K 70 0 ioctlops 0 0K 2K 166960K 269 0 iov 0 0K 34K 166960K 303 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1453 91K 91K 166960K 3385 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 57 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 387 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 19 69K 73K 166960K 3427 0 sigio 0 0K 0K 166960K 224 0 proc 58 59K 75K 166960K 952 0 subproc 117 7K 7K 166960K 287 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 250 0 in_multi 77 5K 7K 166960K 260 0 ether_multi 1 0K 0K 166960K 4 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 1033 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 373 102K 116K 166960K 35310 0 UVM aobj 131 4K 4K 166960K 137 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 107 0 NDP 11 0K 1K 166960K 93 0 temp 79 6700K 6828K 166960K 28774 0 kqueue 14 22K 26K 166960K 393 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 120 133 0 130 1 0 1 1 0 8 0 rtentry 112 260 0 171 4 0 4 4 0 8 0 unpcb 144 3125 0 3110 25 24 1 6 0 8 0 syncache 320 34 0 34 7 6 1 1 0 8 1 tcpqe 32 144 0 144 5 4 1 1 0 8 1 tcpcb 808 780 0 764 27 25 2 8 0 8 0 arp 88 45 0 31 1 0 1 1 0 8 0 ipq 40 5 0 5 2 2 0 1 0 8 0 ipqe 40 195 0 195 2 2 0 1 0 8 0 inpcb 344 2302 0 2282 46 43 3 8 0 8 0 nd6 104 66 0 47 1 0 1 1 0 8 0 pkpcb 40 21 0 21 5 5 0 1 0 8 0 kcovpl 48 21 0 12 1 0 1 1 0 8 0 ppxss 1072 13 0 13 4 4 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1058 0 686 40 11 29 29 0 8 3 art_table 32 1059 0 686 4 0 4 4 0 8 0 art_node 16 259 0 178 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 34 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 385 0 375 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 5842 0 4389 92 0 92 92 0 8 0 ffsino 240 5842 0 4389 86 0 86 86 0 8 0 nchpl 144 10592 0 8938 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 37561 0 37559 5 4 1 3 0 8 0 vcpupl 2048 6 0 0 1 0 1 1 0 8 0 vmpool 664 6 0 0 1 0 1 1 0 8 0 kstatmem 264 102 0 80 2 0 2 2 0 8 0 scxspl 216 37493 0 37493 18 17 1 8 1 8 1 plimitpl 152 505 0 489 1 0 1 1 0 8 0 sigapl 424 3843 0 3778 8 0 8 8 0 8 0 futexpl 64 31080 0 31070 1 0 1 1 0 8 0 knotepl 120 35677 0 35594 40 37 3 18 0 8 0 kqueuepl 184 529 0 519 3 2 1 2 0 8 0 pipepl 288 883 0 854 24 15 9 10 0 8 6 fdescpl 432 3685 0 3655 4 0 4 4 0 8 0 filepl 120 22815 0 22554 40 26 14 15 0 8 5 lockfpl 104 1151 0 1149 1 0 1 1 0 8 0 lockfspl 48 384 0 382 1 0 1 1 0 8 0 sessionpl 144 36 0 19 1 0 1 1 0 8 0 pgrppl 48 70 0 53 1 0 1 1 0 8 0 ucredpl 104 3084 0 3073 1 0 1 1 0 8 0 zombiepl 144 3778 0 3778 1 0 1 1 0 8 1 processpl 1072 3843 0 3778 5 0 5 5 0 8 0 procpl 680 9879 0 9785 16 7 9 9 0 8 0 sosppl 168 32 0 32 7 7 0 1 0 8 0 sockpl 488 5624 0 5586 158 152 6 29 0 8 0 mcl64k 65536 212 0 212 12 11 1 1 0 8 1 mcl16k 16384 113 0 113 11 11 0 1 0 8 0 mcl12k 12288 143 0 143 10 9 1 1 0 8 1 mcl9k 9216 56 0 56 11 11 0 1 0 8 0 mcl8k 8192 328 0 328 5 4 1 1 0 8 1 mcl4k 4096 401 0 401 4 3 1 1 0 8 1 mcl2k2 2112 20 0 20 10 9 1 1 0 8 1 mcl2k 2048 76503 0 76457 43 36 7 34 0 8 0 mtagpl 96 759 0 564 14 9 5 7 0 8 0 mbufpl 256 151443 0 151155 126 105 21 64 0 8 0 bufpl 280 11098 0 4706 457 0 457 457 0 8 0 anonpl 24 525736 0 511848 135 45 90 108 0 188 0 amapchunkpl 152 113002 0 112045 69 31 38 46 0 158 1 amappl16 200 11697 0 11253 50 26 24 34 0 8 0 amappl15 192 44 0 44 1 1 0 1 0 8 0 amappl14 184 220 0 207 2 1 1 2 0 8 0 amappl13 176 54 0 53 1 0 1 1 0 8 0 amappl12 168 4508 0 4475 2 0 2 2 0 8 0 amappl11 160 54 0 43 1 0 1 1 0 8 0 amappl10 152 47 0 37 1 0 1 1 0 8 0 amappl9 144 277 0 277 4 4 0 1 0 8 0 amappl8 136 261 0 199 4 1 3 3 0 8 0 amappl7 128 210 0 188 2 0 2 2 0 8 0 amappl6 120 459 0 449 1 0 1 1 0 8 0 amappl5 112 186 0 177 1 0 1 1 0 8 0 amappl4 104 515 0 493 2 1 1 2 0 8 0 amappl3 96 22093 0 21986 3 0 3 3 0 8 0 amappl2 88 4277 0 4202 3 1 2 3 0 8 0 amappl1 80 22219 0 21695 22 10 12 22 0 8 0 amappl 88 34628 0 34372 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 3691 0 3655 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3691 0 3655 1 0 1 1 0 8 0 vmmpekpl 168 34739 0 34670 4 0 4 4 0 8 0 vmmpepl 168 242412 0 240018 210 104 106 123 0 357 0 vmsppl 352 3690 0 3655 6 2 4 4 0 8 0 rwobjpl 24 71033 0 63462 46 0 46 46 0 8 0 pdppl 4096 7388 0 7316 380 308 72 74 0 8 0 pvpl 32 1289117 0 1269122 420 252 168 362 0 265 0 pmappl 216 3690 0 3655 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 879 0 542 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6b5540,ffff800030f5fc70,ffff800030f5fbc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff800030f5fc70) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa15a16a8950, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a6b5540,deadbeefdeadbeef,0,8000001e,fffffd806d6158d0,fffffd807f7d7a28) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806d6158d0,4,1e,0,ffff80002a6b5540) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a6b5540,ffff800030f5fc70,ffff800030f5fbc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff800030f5fc70) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa15a16a8950, count: -5