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(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff800021679d60,ffff8000216f8a10,ffff8000216f8a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8ae0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x711c0a8ee830, count: -5 ddb> show registers rdi 0xffff800021679d60 rsi 0xdead4110dead4110 rbp 0xffff8000216f8800 rbx 0xdead4110dead4110 rdx 0 rcx 0x80000110 __kernel_virt_to_phys+0x110 rax 0x1 r8 0xfffffd806c360dd0 r9 0xfffffd807f7d76e8 r10 0xafacf97c865cc9c1 r11 0xdad0a13ded7afe95 r12 0xdead4110dead4110 r13 0xfffffd807f7d76e8 r14 0xffff800021679d60 r15 0x80000110 __kernel_virt_to_phys+0x110 rip 0xffffffff81ad643e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000216f8780 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor272358030) tid=96514 pid=65382 tcnt=1 stat=onproc flags process=0 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002167ad50,0xffff80002167aab8 process=0xffff800021664fd0 user=0xffff8000216f3000, vmspace=0xfffffd806f23fa18 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 57025 189366 88956 0 2 0 syz-executor272358030 *65382 96514 79963 0 7 0 syz-executor272358030 45377 377284 41151 0 2 0x480 syz-executor272358030 79963 42416 41151 0 3 0x80 nanoslp syz-executor272358030 27812 425483 41151 0 2 0x480 syz-executor272358030 47705 395578 41151 0 2 0 syz-executor272358030 46749 488472 41151 0 2 0 syz-executor272358030 32475 255205 41151 0 3 0x80 nanoslp syz-executor272358030 88956 308208 41151 0 3 0x80 nanoslp syz-executor272358030 22828 247186 41151 0 2 0 syz-executor272358030 41151 122125 62662 0 3 0x82 nanoslp syz-executor272358030 62662 165087 23987 0 3 0x10008a sigsusp ksh 23987 240714 79353 0 2 0x12 sshd 799 449952 1 0 3 0x100083 ttyin getty 79353 511372 1 0 3 0x88 kqread sshd 96121 360753 70236 73 3 0x1100090 kqread syslogd 70236 73990 1 0 3 0x100082 netio syslogd 98090 164044 1 0 3 0x100080 kqread resolvd 56218 292085 60093 77 3 0x100092 kqread dhcpleased 27729 277144 60093 77 3 0x100092 kqread dhcpleased 60093 144409 1 0 3 0x80 kqread dhcpleased 63121 306147 0 0 3 0x14200 bored smr 54995 18228 0 0 2 0x14200 zerothread 81750 71983 0 0 3 0x14200 aiodoned aiodoned 99781 283092 0 0 3 0x14200 syncer update 9828 398332 0 0 3 0x14200 cleaner cleaner 49935 1411 0 0 3 0x14200 reaper reaper 73904 48466 0 0 3 0x14200 pgdaemon pagedaemon 16358 76641 0 0 3 0x14200 bored viomb 48175 95221 0 0 3 0x40014200 acpi0 acpi0 66884 383145 0 0 3 0x14200 bored softnet3 11591 117991 0 0 3 0x14200 bored softnet2 72082 382793 0 0 3 0x14200 bored softnet1 52486 429920 0 0 2 0x14200 softnet0 24070 198274 0 0 3 0x14200 bored systqmp 63034 388800 0 0 3 0x14200 bored systq 92472 123948 0 0 3 0x40014200 tmoslp softclock 15479 104291 0 0 3 0x40014200 idle0 1 52573 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 56 58K 59K 78643K 247 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 6K 78643K 2584 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 41 5910K 5974K 78643K 3460 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 304 5 0 5 2 1 1 1 0 8 1 tcpqe 32 87 0 87 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 2047 0 540 95 0 95 95 0 8 0 ffsino 240 2047 0 540 89 0 89 89 0 8 0 nchpl 144 2846 0 1260 60 0 60 60 0 8 1 uvmvnodes 80 2056 0 0 42 0 42 42 0 8 0 vnodes 216 2056 0 0 115 0 115 115 0 8 0 namei 1024 7027 0 7025 3 1 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 7876 0 7876 10 9 1 8 1 8 1 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 624 0 582 6 0 6 6 0 8 0 knotepl 120 5921 0 5891 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 393 0 390 2 1 1 1 0 8 0 fdescpl 432 608 0 585 4 0 4 4 0 8 1 filepl 120 2349 0 2292 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 104 372 0 359 1 0 1 1 0 8 0 zombiepl 144 585 0 582 2 1 1 1 0 8 0 processpl 1008 624 0 582 7 1 6 6 0 8 0 procpl 680 624 0 582 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 11035 0 10999 36 27 9 32 0 8 4 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 18621 0 18580 17 10 7 17 0 8 2 bufpl 288 3027 0 87 210 0 210 210 0 8 0 anonpl 24 194310 0 192324 24 11 13 23 0 188 0 amapchunkpl 152 9227 0 9024 9 1 8 8 0 158 0 amappl16 200 5893 0 5882 5 4 1 5 0 8 0 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 112 0 103 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 797 0 777 1 0 1 1 0 8 0 amappl11 160 80 0 70 1 0 1 1 0 8 0 amappl10 152 23 0 23 2 1 1 1 0 8 1 amappl9 144 108 0 108 1 1 0 1 0 8 0 amappl8 136 42 0 40 1 0 1 1 0 8 0 amappl7 128 85 0 75 1 0 1 1 0 8 0 amappl6 120 139 0 134 1 0 1 1 0 8 0 amappl5 112 100 0 92 1 0 1 1 0 8 0 amappl4 104 641 0 615 1 0 1 1 0 8 0 amappl3 96 2293 0 2245 2 0 2 2 0 8 0 amappl2 88 598 0 550 2 0 2 2 0 8 0 amappl1 80 10013 0 9545 13 2 11 11 0 8 0 amappl 88 2308 0 2235 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 24 608 0 585 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 608 0 585 1 0 1 1 0 8 0 vmmpekpl 168 8767 0 8747 1 0 1 1 0 8 0 vmmpepl 168 42094 0 40937 56 2 54 54 0 357 2 vmsppl 368 607 0 585 3 0 3 3 0 8 0 rwobjpl 24 19898 0 17162 18 1 17 17 0 8 0 pdppl 4096 1223 0 1170 85 22 63 63 0 8 10 pvpl 32 303542 0 298882 55 16 39 52 0 265 0 pmappl 216 607 0 585 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 562 0 65 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff800021679d60,ffff8000216f8a10,ffff8000216f8a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8ae0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x711c0a8ee830, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff800021679d60,dead4110dead4110,0,80000110,fffffd806c360dd0,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c360dd0,4,110,0,ffff800021679d60) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff800021679d60,ffff8000216f8a10,ffff8000216f8a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216f8ae0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x711c0a8ee830, count: -5