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(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002167b810,ffff8000216f8b80,ffff8000216f8bd0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8c50) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x705161459b50, count: -5 ddb> show registers rdi 0xffff80002167b810 rsi 0xdead4110dead4110 rbp 0xffff8000216f8970 rbx 0xdead4110dead4110 rdx 0 rcx 0x80000120 __kernel_virt_to_phys+0x120 rax 0x1 r8 0xfffffd806c50bbf0 r9 0xfffffd807f7d7b60 r10 0x8336d999b3b134da r11 0xbccfd92b884ad961 r12 0xdead4110dead4110 r13 0xfffffd807f7d7b60 r14 0xffff80002167b810 r15 0x80000120 __kernel_virt_to_phys+0x120 rip 0xffffffff81318d1e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000216f88f0 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor1211104160) tid=349594 pid=75614 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=0xffff80002167cd50,0xffff80002167b578 process=0xffff8000ffff6400 user=0xffff8000216f3000, vmspace=0xfffffd8075aefcf8 estcpu=4, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 43503 84130 54289 0 3 0 biowait syz-executor1211104160 *75614 349594 98056 0 7 0 syz-executor1211104160 14612 113213 56549 0 2 0 syz-executor1211104160 98056 278585 56549 0 3 0x80 nanoslp syz-executor1211104160 54289 481377 56549 0 3 0x80 nanoslp syz-executor1211104160 76798 257877 56549 0 3 0 biowait syz-executor1211104160 49312 105787 56549 0 2 0x480 syz-executor1211104160 76589 136670 56549 0 2 0x480 syz-executor1211104160 51974 478609 56549 0 2 0 syz-executor1211104160 25238 335756 56549 0 3 0 biowait syz-executor1211104160 56549 77173 44543 0 3 0x82 nanoslp syz-executor1211104160 44543 238726 36475 0 3 0x10008a sigsusp ksh 36475 345746 38651 0 3 0x9a kqread sshd 5275 432912 1 0 3 0x100083 ttyin getty 38651 173216 1 0 3 0x88 kqread sshd 25355 224851 34380 73 3 0x1100090 kqread syslogd 34380 347031 1 0 3 0x100082 netio syslogd 42276 261517 1 0 3 0x100080 kqread resolvd 13953 321218 3408 77 3 0x100092 kqread dhcpleased 9315 70556 3408 77 3 0x100092 kqread dhcpleased 3408 437465 1 0 3 0x80 kqread dhcpleased 85759 423065 0 0 3 0x14200 bored smr 96241 219817 0 0 3 0x14200 pgzero zerothread 64247 278144 0 0 3 0x14200 aiodoned aiodoned 34370 152077 0 0 3 0x14200 syncer update 73759 116072 0 0 3 0x14200 cleaner cleaner 48318 188010 0 0 3 0x14200 reaper reaper 46491 261588 0 0 3 0x14200 pgdaemon pagedaemon 96739 317527 0 0 3 0x14200 bored viomb 68270 125042 0 0 3 0x40014200 acpi0 acpi0 61319 52587 0 0 3 0x14200 bored softnet3 18303 473530 0 0 3 0x14200 bored softnet2 96300 88436 0 0 3 0x14200 bored softnet1 52570 195108 0 0 3 0x14200 bored softnet0 68065 30515 0 0 3 0x14200 bored systqmp 83822 125161 0 0 3 0x14200 bored systq 24049 127621 0 0 3 0x40014200 tmoslp softclock 56962 355857 0 0 3 0x40014200 idle0 1 241242 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 10139 6382K 6413K 78643K 11217 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 110 0 pf 12 6K 6K 78643K 12 0 ifaddr 11 5K 5K 78643K 11 0 ifgroup 17 1K 1K 78643K 17 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 21 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1174 73K 74K 78643K 1187 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 58K 59K 78643K 246 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 243 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 111 5K 5K 78643K 2191 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 1 5900K 5964K 78643K 2795 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 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 32 152 0 152 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 97 0 0 7 0 7 7 0 8 0 art_table 32 98 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 1485 0 71 89 0 89 89 0 8 0 ffsino 240 1485 0 71 84 0 84 84 0 8 0 nchpl 144 1722 0 139 59 0 59 59 0 8 0 uvmvnodes 80 1494 0 0 31 0 31 31 0 8 0 vnodes 216 1494 0 0 83 0 83 83 0 8 0 namei 1024 4504 0 4502 3 1 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 5105 0 5102 12 11 1 8 1 8 0 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 343 0 302 6 0 6 6 0 8 0 knotepl 120 3630 0 3601 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 432 327 0 304 4 1 3 3 0 8 0 filepl 120 1176 0 1119 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 144 304 0 302 2 1 1 1 0 8 0 processpl 1008 343 0 302 6 0 6 6 0 8 0 procpl 680 343 0 302 4 0 4 4 0 8 0 sockpl 456 79 0 57 4 1 3 4 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 10885 0 10845 33 24 9 30 0 8 3 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 17631 0 17586 16 10 6 16 0 8 3 bufpl 288 2465 0 87 170 0 170 170 0 8 0 anonpl 24 164438 0 162464 24 11 13 23 0 188 1 amapchunkpl 152 8085 0 7880 9 1 8 8 0 158 0 amappl16 200 4574 0 4564 6 5 1 5 0 8 0 amappl15 192 30 0 30 1 1 0 1 0 8 0 amappl14 184 123 0 114 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 798 0 778 2 1 1 2 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 14 0 14 2 1 1 1 0 8 1 amappl9 144 116 0 116 1 1 0 1 0 8 0 amappl8 136 45 0 43 1 0 1 1 0 8 0 amappl7 128 84 0 73 1 0 1 1 0 8 0 amappl6 120 117 0 112 1 0 1 1 0 8 0 amappl5 112 93 0 85 1 0 1 1 0 8 0 amappl4 104 353 0 325 1 0 1 1 0 8 0 amappl3 96 2206 0 2160 2 0 2 2 0 8 0 amappl2 88 600 0 552 2 0 2 2 0 8 0 amappl1 80 8946 0 8474 13 2 11 11 0 8 1 amappl 88 1923 0 1849 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 24 327 0 304 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 327 0 304 1 0 1 1 0 8 0 vmmpekpl 168 6928 0 6909 1 0 1 1 0 8 0 vmmpepl 168 33714 0 32552 63 10 53 53 0 357 2 vmsppl 368 326 0 304 3 0 3 3 0 8 0 rwobjpl 24 17934 0 15752 15 1 14 14 0 8 0 pdppl 4096 660 0 608 82 26 56 56 0 8 4 pvpl 32 259903 0 255269 57 18 39 52 0 265 0 pmappl 216 326 0 304 3 1 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 507 0 67 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002167b810,ffff8000216f8b80,ffff8000216f8bd0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8c50) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x705161459b50, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002167b810,dead4110dead4110,0,80000120,fffffd806c50bbf0,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c50bbf0,4,120,0,ffff80002167b810) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002167b810,ffff8000216f8b80,ffff8000216f8bd0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8c50) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x705161459b50, count: -5