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(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a608d60,ffff80002a6959d0,ffff80002a695a10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695ad0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ec2a6defc20, count: -5 ddb> show registers rdi 0xffff80002a608d60 rsi 0xdeadbeefdeadbeef rbp 0xffff80002a6957c0 rbx 0xdeadbeefdeadbeef rdx 0 rcx 0x80000310 __kernel_virt_to_phys+0x310 rax 0x1 r8 0xfffffd806c313520 r9 0xfffffd807f7d7a90 r10 0x7269565f846ad70e r11 0x262af72c956f7935 r12 0xdeadbeefdeadbeef r13 0xfffffd807f7d7a90 r14 0xffff80002a608d60 r15 0x80000310 __kernel_virt_to_phys+0x310 rip 0xffffffff817c2fbe ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a695740 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor1208128440) tid=170906 pid=35276 tcnt=1 stat=onproc flags process=0 proc=0 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a609800,0xffff80002a609018 process=0xffff8000ffff0ca8 user=0xffff80002a690000, vmspace=0xfffffd806c486b10 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 87225 385522 31848 0 2 0 syz-executor1208128440 *35276 170906 65354 0 7 0 syz-executor1208128440 80746 9668 25365 0 2 0 syz-executor1208128440 57995 135016 25365 0 2 0 syz-executor1208128440 31848 198143 25365 0 3 0x80 nanoslp syz-executor1208128440 47624 194678 25365 0 3 0x80 nanoslp syz-executor1208128440 29974 178967 25365 0 3 0x80 nanoslp syz-executor1208128440 25317 422819 25365 0 2 0 syz-executor1208128440 47269 328198 25365 0 2 0 syz-executor1208128440 65354 8338 25365 0 3 0x80 nanoslp syz-executor1208128440 25365 371533 35166 0 3 0x82 nanoslp syz-executor1208128440 35166 507308 79096 0 3 0x10008a sigsusp ksh 79096 361372 65636 0 3 0x9a kqread sshd 35923 254984 1 0 3 0x100083 ttyin getty 65636 374044 1 0 3 0x88 kqread sshd 45405 354761 19719 73 3 0x1100090 kqread syslogd 19719 55287 1 0 3 0x100082 netio syslogd 13464 476118 1 0 3 0x100080 kqread resolvd 57346 61221 28022 77 3 0x100092 kqread dhcpleased 1010 168063 28022 77 3 0x100092 kqread dhcpleased 28022 357487 1 0 3 0x80 kqread dhcpleased 18542 467720 0 0 3 0x14200 bored smr 92768 268063 0 0 3 0x14200 pgzero zerothread 17991 406317 0 0 3 0x14200 aiodoned aiodoned 68651 494454 0 0 3 0x14200 syncer update 67968 388819 0 0 3 0x14200 cleaner cleaner 86929 283393 0 0 3 0x14200 reaper reaper 2625 218818 0 0 3 0x14200 pgdaemon pagedaemon 37798 416274 0 0 3 0x14200 bored viomb 33169 126442 0 0 3 0x40014200 acpi0 acpi0 25740 212022 0 0 3 0x14200 bored softnet3 85559 220349 0 0 3 0x14200 bored softnet2 6226 224331 0 0 3 0x14200 bored softnet1 57170 423946 0 0 3 0x14200 bored softnet0 88549 270330 0 0 3 0x14200 bored systqmp 3497 224188 0 0 3 0x14200 bored systq 8400 98586 0 0 3 0x40014200 tmoslp softclock 10611 300189 0 0 3 0x40014200 idle0 1 119272 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 10137 6382K 6413K 166960K 11215 0 pcb 15 10K 10K 166960K 15 0 rtable 58 1K 2K 166960K 110 0 pf 12 6K 6K 166960K 12 0 ifaddr 11 5K 5K 166960K 11 0 ifgroup 17 1K 1K 166960K 17 0 counters 22 16K 16K 166960K 22 0 ioctlops 0 0K 2K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1174 73K 74K 166960K 1187 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 1 0K 0K 166960K 1 0 proc 55 58K 59K 166960K 246 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 11 0K 0K 166960K 11 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 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 243 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 111 5K 5K 166960K 2348 0 UVM aobj 3 2K 2K 166960K 3 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 3 0K 0K 166960K 3 0 temp 1 6688K 6752K 166960K 2990 0 kqueue 11 16K 18K 166960K 24 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 20 0 17 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 33 0 20 1 0 1 1 0 8 0 syncache 312 5 0 5 2 1 1 1 0 8 1 tcpqe 32 105 0 105 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 336 26 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1680 0 224 91 0 91 91 0 8 0 ffsino 240 1680 0 224 86 0 86 86 0 8 0 nchpl 144 2111 0 529 60 0 60 60 0 8 1 uvmvnodes 80 1689 0 0 35 0 35 35 0 8 0 vnodes 216 1689 0 0 94 0 94 94 0 8 0 namei 1024 5378 0 5375 3 1 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 6337 0 6337 9 8 1 8 1 8 1 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 440 0 399 6 0 6 6 0 8 0 knotepl 120 4350 0 4321 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 87 0 84 2 1 1 1 0 8 0 fdescpl 432 424 0 401 3 0 3 3 0 8 0 filepl 120 1370 0 1313 2 0 2 2 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 401 0 399 2 1 1 1 0 8 0 processpl 1072 440 0 399 4 0 4 4 0 8 0 procpl 680 440 0 399 4 0 4 4 0 8 0 sockpl 456 79 0 57 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 1 0 1 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 10931 0 10893 32 21 11 28 0 8 6 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 17952 0 17910 17 10 7 15 0 8 3 bufpl 288 2661 0 86 184 0 184 184 0 8 0 anonpl 24 161106 0 159123 25 12 13 23 0 188 0 amapchunkpl 152 8171 0 7967 9 1 8 8 0 158 0 amappl16 200 4590 0 4580 6 5 1 5 0 8 0 amappl15 192 16 0 16 1 1 0 1 0 8 0 amappl14 184 103 0 94 1 0 1 1 0 8 0 amappl13 176 88 0 87 1 0 1 1 0 8 0 amappl12 168 797 0 777 1 0 1 1 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 10 0 10 2 1 1 1 0 8 1 amappl9 144 124 0 124 1 1 0 1 0 8 0 amappl8 136 45 0 43 1 0 1 1 0 8 0 amappl7 128 89 0 79 1 0 1 1 0 8 0 amappl6 120 112 0 107 1 0 1 1 0 8 0 amappl5 112 98 0 89 1 0 1 1 0 8 0 amappl4 104 445 0 418 1 0 1 1 0 8 0 amappl3 96 2156 0 2110 2 0 2 2 0 8 0 amappl2 88 609 0 561 2 0 2 2 0 8 0 amappl1 80 9300 0 8833 15 4 11 11 0 8 0 amappl 88 2079 0 2005 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 424 0 401 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 424 0 401 1 0 1 1 0 8 0 vmmpekpl 168 7060 0 7040 1 0 1 1 0 8 0 vmmpepl 168 36118 0 34963 59 5 54 54 0 357 1 vmsppl 352 423 0 401 3 0 3 3 0 8 0 rwobjpl 24 18083 0 15712 16 1 15 15 0 8 0 pdppl 4096 854 0 802 80 22 58 58 0 8 6 pvpl 32 261442 0 256816 60 22 38 51 0 265 0 pmappl 216 423 0 401 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 519 0 60 14 0 14 14 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a608d60,ffff80002a6959d0,ffff80002a695a10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695ad0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ec2a6defc20, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a608d60,deadbeefdeadbeef,0,80000310,fffffd806c313520,fffffd807f7d7a90) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c313520,4,310,0,ffff80002a608d60) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a608d60,ffff80002a6959d0,ffff80002a695a10) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a695ad0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ec2a6defc20, count: -5