[Bug 1659716] Re: Please pickup the Valgrind fix for RDARAND and " Illegal opcode"

[Jeffrey Walton]

Thanks again Hans.

Looking at the bug report, something obvious (to me) was not clear...
The patch was already applied to Ubuntu 16.10. 16.10 does not produce
the Illegal Opcode.

Ubuntu 16.04 lacks the patch at the moment. 16.04 falls to the the
Illegal Opcode.

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Title:
  Please pickup the Valgrind fix for RDARAND and " Illegal opcode"

Status in valgrind package in Ubuntu:
  New
Status in valgrind package in Debian:
  Unknown

Bug description:
  Please pickup the Valgrind fix for RDARAND and " Illegal opcode".

  Valgrind report:

    * https://bugs.kde.org/show_bug.cgi?id=353370

  Debian report:

    * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823610

  ====================

  Working with the Crypto++ library:

  $ valgrind ./cryptest.exe v
  ...

  vex amd64->IR: unhandled instruction bytes: 0x48 0xF 0xC7 0xF0 0x48 0x89 0x45 0x0
  vex amd64->IR:   REX=1 REX.W=1 REX.R=0 REX.X=0 REX.B=0
  vex amd64->IR:   VEX=0 VEX.L=0 VEX.nVVVV=0x0 ESC=0F
  vex amd64->IR:   PFX.66=0 PFX.F2=0 PFX.F3=0
  ==16081== valgrind: Unrecognised instruction at address 0x5c4902.
  ==16081==    at 0x5C4902: _rdrand64_step (immintrin.h:186)
  ==16081==    by 0x5C4902: ALL_RRI_GenerateBlock (rdrand.cpp:179)
  ==16081==    by 0x5C4902: CryptoPP::RDRAND::GenerateBlock(unsigned char*, unsigned long) (rdrand.cpp:295)
  ==16081==    by 0x505161: CryptoPP::RandomNumberGenerator::GenerateIntoBufferedTransformation(CryptoPP::BufferedTransformation&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long) (cryptlib.cpp:350)
  ...

  ====================

  $ uname -a
  Linux qotom 4.4.0-53-generic #74-Ubuntu SMP Fri Dec 2 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:    Ubuntu 16.04.1 LTS
  Release:        16.04
  Codename:       xenial

  ====================

  $ which valgrind
  /usr/bin/valgrind

  $ valgrind --version
  valgrind-3.11.0

  $ apt-cache show valgrind
  Package: valgrind
  Priority: optional
  Section: devel
  Installed-Size: 65186
  Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
  Original-Maintainer: Alessandro Ghedini <ghedo at debian.org>
  Architecture: amd64
  Version: 1:3.11.0-1ubuntu4.1
  Replaces: valgrind-dev
  Depends: libc6 (>= 2.14), libc6-dbg
  Recommends: gdb
  Suggests: valgrind-dbg, kcachegrind, alleyoop, valkyrie (>> 1.3.0)
  Breaks: valgrind-dev
  Filename: pool/main/v/valgrind/valgrind_3.11.0-1ubuntu4.1_amd64.deb
  Size: 10967398
  MD5sum: ee114c22adfd029443d62674a594f60a
  SHA1: 8733fdc869aac7ccf044107377a15fead15a5269
  SHA256: f559d5f438ee0f7490008901e7e774644d46456e083ef150ebd1c7e7ec2ff53f
  ...

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