Bug 306721 - vex amd64->IR: unhandled instruction bytes: 0xC5 0xFB 0x10 0x5 0x1B 0xE8 0x1 0x0
Summary: vex amd64->IR: unhandled instruction bytes: 0xC5 0xFB 0x10 0x5 0x1B 0xE8 0x1 0x0
Status: RESOLVED DUPLICATE of bug 273475
Alias: None
Product: valgrind
Classification: Developer tools
Component: memcheck (show other bugs)
Version: 3.7.0
Platform: Unlisted Binaries Linux
: NOR normal
Target Milestone: ---
Assignee: Julian Seward
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-09-13 08:22 UTC by jeremy
Modified: 2012-09-13 09:22 UTC (History)
2 users (show)

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Description jeremy 2012-09-13 08:22:20 UTC 
64 bit code compiled for "corei7-avx"   (a large printf call).
==1500== Memcheck, a memory error detector
==1500== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==1500== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==1500== Command: ./g_gdb -gc lim,quit
==1500==
vex amd64->IR: unhandled instruction bytes: 0xC5 0xFB 0x10 0x5 0x1B 0xE8 0x1 0x0
==1500== valgrind: Unrecognised instruction at address 0x40c1e5.

gcc --version
gcc (GCC) 4.7.0 20120507 (Red Hat 4.7.0-5)
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Comment 1 Tom Hughes 2012-09-13 09:22:03 UTC 
AVX instruction - an upgrade to 3.8.0 will probably fix it.

*** This bug has been marked as a duplicate of bug 273475 ***