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(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a679010,ffff80002c114f20,ffff80002c114f60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c115020) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3b312fc7fe0, count: -5 ddb> show registers rdi 0xffff80002a6d0000 rsi 0x8c8 rbp 0xffff80002c114d10 rbx 0xdead4110dead4110 rdx 0xffff80002a6d0000 rcx 0x8c7 rax 0xffffffff810f7453 ktrops+0x43 r8 0xfffffd80699ec870 r9 0xfffffd807f7d7820 r10 0x9f0a235993bb2461 r11 0x5dd7da6c16ac5d38 r12 0xdead4110dead4110 r13 0xfffffd807f7d7820 r14 0xffff80002a679010 r15 0x80000420 __kernel_virt_to_phys+0x420 rip 0xffffffff810f745e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002c114c90 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor.0) tid=400100 pid=51431 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=0xffff80002a679808,0xffff80002f546010 process=0xffff80002a639510 user=0xffff80002c110000, vmspace=0xfffffd8069a67010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98985 352450 76537 0 3 0x80 nanoslp syz-executor.4 98985 381971 76537 0 3 0x4000080 fsleep syz-executor.4 51431 478490 33638 0 2 0 syz-executor.0 *51431 400100 33638 0 7 0x4000000 syz-executor.0 33138 1932 42322 0 2 0x2 syz-executor.7 68966 99236 42322 0 2 0x2 syz-executor.5 76537 184208 42322 0 3 0x82 nanoslp syz-executor.4 47736 331637 42322 0 2 0x2 syz-executor.3 97909 142904 42322 0 2 0x2 syz-executor.6 60459 335855 42322 0 2 0x2 syz-executor.1 32484 257244 42322 0 3 0x82 nanoslp syz-executor.2 33638 485433 42322 0 3 0x82 nanoslp syz-executor.0 42322 301692 35008 0 3 0x2000082 thrsleep syz-fuzzer 42322 180781 35008 0 3 0x6000082 nanoslp syz-fuzzer 42322 508042 35008 0 3 0x6000082 wait syz-fuzzer 42322 157412 35008 0 3 0x6000082 wait syz-fuzzer 42322 292065 35008 0 3 0x6000082 wait syz-fuzzer 42322 185146 35008 0 3 0x6000082 thrsleep syz-fuzzer 42322 144013 35008 0 3 0x6000082 wait syz-fuzzer 42322 60690 35008 0 3 0x6000082 wait syz-fuzzer 42322 163513 35008 0 3 0x6000082 wait syz-fuzzer 42322 210227 35008 0 3 0x6000082 thrsleep syz-fuzzer 42322 423221 35008 0 3 0x6000082 wait syz-fuzzer 42322 25256 35008 0 3 0x6000082 wait syz-fuzzer 42322 193699 35008 0 3 0x6000082 kqread syz-fuzzer 42322 28568 35008 0 3 0x6000082 thrsleep syz-fuzzer 35008 160056 35095 0 3 0x10008a sigsusp ksh 35095 357767 75951 0 3 0x9a kqread sshd 96501 331029 1 0 3 0x100083 ttyin getty 75951 371331 1 0 3 0x88 kqread sshd 62355 326438 44256 73 3 0x1100090 kqread syslogd 44256 56331 1 0 3 0x100082 netio syslogd 25908 343396 1 0 3 0x100080 kqread resolvd 10964 47285 59143 77 3 0x100092 kqread dhcpleased 76787 97045 59143 77 3 0x100092 kqread dhcpleased 59143 153546 1 0 3 0x80 kqread dhcpleased 74280 298103 0 0 3 0x14200 bored smr 54429 298045 0 0 2 0x14200 zerothread 43860 190564 0 0 3 0x14200 aiodoned aiodoned 45232 263707 0 0 3 0x14200 syncer update 25246 300273 0 0 3 0x14200 cleaner cleaner 90048 499857 0 0 3 0x14200 reaper reaper 90626 194106 0 0 3 0x14200 pgdaemon pagedaemon 28213 512402 0 0 3 0x14200 bored viomb 35889 97770 0 0 3 0x40014200 acpi0 acpi0 39077 225187 0 0 3 0x14200 bored softnet3 33415 456609 0 0 3 0x14200 bored softnet2 50753 294243 0 0 3 0x14200 bored softnet1 36614 522394 0 0 3 0x14200 bored softnet0 81374 155567 0 0 3 0x14200 bored systqmp 14819 316459 0 0 3 0x14200 bored systq 20987 90088 0 0 3 0x40014200 tmoslp softclock 71126 130019 0 0 3 0x40014200 idle0 1 416287 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 10200 6425K 6434K 166960K 14914 0 pcb 15 14K 15K 166960K 502 0 rtable 234 6K 6K 166960K 350 0 pf 29 8K 8K 166960K 29 0 ifaddr 43 11K 11K 166960K 45 0 ifgroup 50 2K 2K 166960K 50 0 counters 30 17K 17K 166960K 30 0 ioctlops 0 0K 2K 166960K 4926 0 iov 0 0K 8K 166960K 1170 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 5341 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 21K 166960K 751 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 649 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 12 41K 81K 166960K 40444 0 sigio 0 0K 0K 166960K 2310 0 proc 56 58K 75K 166960K 471 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 361 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 261 78K 80K 166960K 341413 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 1K 166960K 27 0 temp 73 6700K 6828K 166960K 91495 0 kqueue 12 18K 27K 166960K 4814 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 36 0 33 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 51029 0 51013 215 209 6 10 0 8 5 syncache 312 4 0 4 1 1 0 1 0 8 0 sackhl 24 11 0 11 10 10 0 1 0 8 0 tcpcb 808 2057 0 2050 57 50 7 14 0 8 6 arp 88 18 0 0 1 0 1 1 0 8 0 inpcb 336 3171 0 3161 42 35 7 7 0 8 6 nd6 104 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 32 453 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 semapl 112 647 0 637 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 50056 0 48595 92 0 92 92 0 8 0 ffsino 240 50056 0 48595 87 0 87 87 0 8 0 nchpl 144 101868 0 100182 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 280141 0 280139 9 8 1 3 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 270322 0 270322 9 8 1 8 1 8 1 plimitpl 152 265 0 250 1 0 1 1 0 8 0 sigapl 424 40741 0 40701 7 1 6 6 0 8 0 futexpl 64 241686 0 241685 1 0 1 1 0 8 0 knotepl 120 310747 0 310665 4 0 4 4 0 8 0 kqueuepl 184 8895 0 8887 69 68 1 4 0 8 0 pipepl 288 134 0 106 3 0 3 3 0 8 0 fdescpl 432 40725 0 40702 10 6 4 4 0 8 0 filepl 120 178868 0 178624 261 247 14 15 0 8 6 lockfpl 104 1365 0 1363 3 2 1 2 0 8 0 lockfspl 48 518 0 516 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 545 0 529 1 0 1 1 0 8 0 ucredpl 104 35645 0 35635 1 0 1 1 0 8 0 zombiepl 144 40702 0 40701 1 0 1 1 0 8 0 processpl 1072 40741 0 40701 5 1 4 4 0 8 0 procpl 680 85406 0 85351 11 5 6 7 0 8 0 sockpl 456 54236 0 54207 861 850 11 34 0 8 7 mcl64k 65536 776 0 776 54 53 1 1 0 8 1 mcl16k 16384 438 0 438 41 41 0 1 0 8 0 mcl12k 12288 778 0 778 68 67 1 1 0 8 1 mcl9k 9216 804 0 804 64 64 0 1 0 8 0 mcl8k 8192 1775 0 1775 63 63 0 1 0 8 0 mcl4k 4096 2428 0 2428 63 62 1 1 0 8 1 mcl2k2 2112 261 0 261 47 46 1 1 0 8 1 mcl2k 2048 73827 0 73795 41 36 5 8 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 312090 0 312041 89 81 8 55 0 8 0 bufpl 288 47156 0 40763 457 0 457 457 0 8 0 anonpl 24 2898888 0 2891922 75 25 50 55 0 188 0 amapchunkpl 152 1071089 0 1070521 208 180 28 31 0 158 2 amappl16 200 51791 0 51598 36 25 11 14 0 8 0 amappl15 192 27 0 26 2 1 1 1 0 8 0 amappl14 184 147 0 135 2 0 2 2 0 8 0 amappl13 176 20 0 18 1 0 1 1 0 8 0 amappl12 168 41357 0 41330 2 0 2 2 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 14 0 5 2 1 1 1 0 8 0 amappl9 144 46 0 46 9 9 0 1 0 8 0 amappl8 136 532 0 462 3 0 3 3 0 8 0 amappl7 128 218 0 198 2 0 2 2 0 8 0 amappl6 120 301 0 294 1 0 1 1 0 8 0 amappl5 112 730 0 722 1 0 1 1 0 8 0 amappl4 104 827 0 804 2 1 1 2 0 8 0 amappl3 96 218061 0 217999 19 16 3 3 0 8 1 amappl2 88 42146 0 42079 3 1 2 3 0 8 0 amappl1 80 142812 0 142311 22 11 11 22 0 8 0 amappl 88 340900 0 340748 5 0 5 5 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 40725 0 40702 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 40725 0 40702 1 0 1 1 0 8 0 vmmpekpl 168 189989 0 189946 3 0 3 3 0 8 0 vmmpepl 168 2141677 0 2139916 329 240 89 112 0 357 3 vmsppl 352 40724 0 40702 3 0 3 3 0 8 0 rwobjpl 24 438387 0 431181 45 1 44 44 0 8 0 pdppl 4096 81456 0 81404 1580 1518 62 72 0 8 10 pvpl 32 9402907 0 9390855 426 315 111 361 0 265 0 pmappl 216 40724 0 40702 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2726 0 1955 24 1 23 24 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a679010,ffff80002c114f20,ffff80002c114f60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c115020) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3b312fc7fe0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a679010,dead4110dead4110,0,80000420,fffffd80699ec870,fffffd807f7d7820) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80699ec870,4,420,0,ffff80002a679010) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a679010,ffff80002c114f20,ffff80002c114f60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002c115020) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3b312fc7fe0, count: -5