[Bug 213155] possible kernel regression when running 11.0-RELEASE on KVM on AMD Opterons

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213155

--- Comment #10 from Martin Waschbüsch <martin at waschbuesch.de> ---
(In reply to Ed Maste from comment #9)

I attached gdb from host system and got this output:

(gdb) target remote :1234
Remote debugging using :1234
0x0000cb70 in ?? ()
(gdb) info registers
eax            0xf78b   63371
ecx            0xcb66   52070
edx            0xdf00   57088
ebx            0xdf00   57088
esp            0xf7a0   0xf7a0
ebp            0x0      0x0
esi            0xf860   63584
edi            0x0      0
eip            0xcb70   0xcb70
eflags         0x6      [ PF ]
cs             0xf000   61440
ss             0xdf00   57088
ds             0xdf00   57088
es             0xdf00   57088
fs             0x0      0
gs             0x0      0

Also, (I don't know if that is helpful), this is the output of qemu-integrated
monitor:

# info registers
RAX=0000000000000015 RBX=000000004b4d564b RCX=00000000c0011005
RDX=0000000000001022
RSI=ffffffff816af46d RDI=f000e987f000fea5 RBP=ffffffff81a210b0
RSP=ffffffff800bff80
R8 =0000000000000001 R9 =0000000000000000 R10=ffffffff816ad760
R11=0000000000000000
R12=0000000000004000 R13=ffffffff81e23f90 R14=00000000021b0000
R15=ffffffff821a8000
RIP=ffffffff80f842f6 RFL=00010046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0028 0000000000000000 ffffffff 00a09300 DPL=0 DS   [-WA]
CS =0020 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0028 0000000000000000 ffffffff 00a09300 DPL=0 DS   [-WA]
DS =0028 0000000000000000 ffffffff 00a09300 DPL=0 DS   [-WA]
FS =0028 0000000000000000 ffffffff 00a09300 DPL=0 DS   [-WA]
GS =0028 0000000000000000 ffffffff 00a09300 DPL=0 DS   [-WA]
LDT=0000 0000000000000000 0000ffff 00008200 DPL=0 LDT
TR =0038 0000000000005f98 00002067 00008b00 DPL=0 TSS64-busy
GDT=     ffffffff81e2a7d0 00000067
IDT=     ffffffff81d7d540 00000fff
CR0=80000011 CR2=0000000000000000 CR3=0000000000058000 CR4=00000020
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000500
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000

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