Re: [Valgrind-users] unhandled instruction bytes: 0xC5 0xF9 0x6E 0x45

[Danny W. <da...@to...>]

Hi Jeff,

Thanks, I'll give it a shot!

From the previous messages in this thread, the target machine is an 6500 series i5.  When rebuilding gcc, what value for -march would be appropriate?

Danny

On 29/11/2016, at 12:35 PM, Jeff Hammond wrote:

> Based upon your prior report showing the illegal instruction associated with std:tr1 code (re-included below), I recommend you build GCC from source so that your C++ standard library is compiled with generic instructions.  Building GCC sounds daunting but I do it all the time.  My poorly curated notes are https://github.com/jeffhammond/HPCInfo/wiki/GCC if you like to copy+paste from the internet :-)