[valgrind] [Bug 396176] New: vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 Bug ID: 396176 Summary: vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6 Product: valgrind Version: 3.13.0 Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: vex Assignee: jsew...@acm.org Reporter: cj-...@zougloub.eu Target Milestone: --- vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6 vex amd64->IR: REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0 vex amd64->IR: VEX=0 VEX.L=0 VEX.n=0x0 ESC=0F vex amd64->IR: PFX.66=0 PFX.F2=0 PFX.F3=0 ==17999== valgrind: Unrecognised instruction at address 0x846054f. ==17999==at 0x846054F: QRandomGenerator::SystemGenerator::generate(unsigned int*, unsigned int*) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84609C8: QRandomGenerator::_fillRange(void*, void*) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84A2F55: qt_create_qhash_seed() (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84A2FA3: qt_initialize_qhash_seed() (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84A3210: QHashData::detach_helper(void (*)(QHashData::Node*, void*), void (*)(QHashData::Node*), int, int) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84B90B1: QHash::Node>::detach() (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84B58D9: prepareEngine(QRegExpPrivate*) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x84B5A87: QRegExp::QRegExp(QString const&, Qt::CaseSensitivity, QRegExp::PatternSyntax) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x8507A2D: QDirIteratorPrivate::QDirIteratorPrivate(QFileSystemEntry const&, QStringList const&, QFlags, QFlags, bool) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x8507EDF: QDirIterator::QDirIterator(QString const&, QStringList const&, QFlags, QFlags) (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x8504DE1: QDir::entryList(QStringList const&, QFlags, QFlags) const (in /usr/lib64/libQt5Core.so.5.11.1) ==17999==by 0x8504F3E: QDir::entryList(QFlags, QFlags) const (in /usr/lib64/libQt5Core.so.5.11.1) (checking the instruction (recompiling qtcore...), will follow-up in a few minutes) -- You are receiving this mail because: You are watching all bug changes.
[valgrind] [Bug 396176] vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 --- Comment #3 from Jérôme Carretero --- actually, that issues disables advertising rdrand in CPUID, but what if the program is hard-coded to use it... -- You are receiving this mail because: You are watching all bug changes.
[valgrind] [Bug 396176] vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 --- Comment #6 from Jérôme Carretero --- Workaround for the particular Qt 5.11 scenario: compiling qtcore with CXXFLAGS+=" -mno-rdrnd". -- You are receiving this mail because: You are watching all bug changes.
[valgrind] [Bug 396176] vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 --- Comment #2 from Jérôme Carretero --- Might be a duplicate of https://bugs.kde.org/show_bug.cgi?id=353370 but I'm not sure. -- You are receiving this mail because: You are watching all bug changes.
[valgrind] [Bug 396176] vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 --- Comment #4 from Jérôme Carretero --- Tested with the now's SVN, it's still unhandled. -- You are receiving this mail because: You are watching all bug changes.
[valgrind] [Bug 396176] vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6
https://bugs.kde.org/show_bug.cgi?id=396176 --- Comment #1 from Jérôme Carretero --- It's rdrand32_step (used as a gcc built-in) vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0 0x0 0x89 0x6 vex amd64->IR: REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0 vex amd64->IR: VEX=0 VEX.L=0 VEX.n=0x0 ESC=0F vex amd64->IR: PFX.66=0 PFX.F2=0 PFX.F3=0 ==30590== valgrind: Unrecognised instruction at address 0x846054f. ==30590==at 0x846054F: _rdrand32_step (immintrin.h:109) ==30590==by 0x846054F: qt_random_cpu (qrandom.cpp:114) ==30590==by 0x846054F: QRandomGenerator::SystemGenerator::generate(unsigned int*, unsigned int*) (qrandom.cpp:369) -- You are receiving this mail because: You are watching all bug changes.
