Bug#738575: pthread: segfault in libpthread on Intel Galileo board
On Thu, May 08, 2014 at 04:45:00PM +0200, Jan Just Keijser wrote:
> Hi,
>
> FWIW: I've got a Galileo board and am running into similar issuse
> (while running CentOS 5 on it ;))
>
> Exact same error at the exact same location; it's not the
> instruction that is not supported , a very small piece of test code
> that does
> lock cmpxchgl %edx, (%eax)
This instruction might work in some cases, but not in all cases.
> works just fine - and this instruction is used left and right in the
> vmlinux kernel itself anyway.
> So it must be the memory offset that is triggering error ...
No it's not. It is a CPU bug, as stated by Intel in their release notes
(p 15), which only happens in "specific circumstances".
http://downloadmirror.intel.com/23197/eng/Quark_SW_RelNotes_330232_001.pdf
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://www.aurel32.net
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