Bug 313354

Summary:	Unrecognised instruction rdtscp
Product:	[Developer tools] valgrind	Reporter:	jeremy <gcc.hall>
Component:	memcheck	Assignee:	Julian Seward <jseward>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	gcc.hall, tom
Priority:	NOR
Version:	3.8.0
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description jeremy 2013-01-16 09:30:28 UTC

vex amd64->IR: unhandled instruction bytes: 0xF 0x1 0xF9 0xEB 0x11 0xE8 0xC7 0xFF
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
==1231== valgrind: Unrecognised instruction at address 0x4034b8.
Intel x64

This is  rdtscp 

Thanks, Jeremy

Comment 1 jeremy 2013-01-16 09:35:38 UTC

Actually this is version 3.8.1  as installed from Fedora 18.
The hardware is Ivy bridge

Comment 2 Tom Hughes 2013-01-16 09:45:29 UTC


*** This bug has been marked as a duplicate of bug 251569 ***