https://bugs.kde.org/show_bug.cgi?id=400279
Mark Wielaard <m...@klomp.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |m...@klomp.org
Resolution|--- |DUPLICATE
Status|REPORTED |RESOLVED
--- Comment #1 from Mark Wielaard <m...@klomp.org> ---
(In reply to Sebastian Groth from comment #0)
> vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0xBA 0x1 0x0 0x0
> 0x0 0x89 0x3
> 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.nVVVV=0x0 ESC=0F
> vex amd64->IR: PFX.66=0 PFX.F2=0 PFX.F3=0
> ==4764== valgrind: Unrecognised instruction at address 0xbc09743.
> ==4764== at 0xBC09743:
> QRandomGenerator::SystemGenerator::generate(unsigned int*, unsigned int*)
> (in /usr/lib64/libQt5Core.so.5.11.1)
That is the RDRAND instruction.
> QtCore has been build with: x86_64-pc-linux-gnu-g++ -march=skylake -O2
Don't use -march=skylake, the program needs to check whether or not the
processor (that valgrind emulates) support rdrand (valgrind doesn't).
*** This bug has been marked as a duplicate of bug 353370 ***
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