[dpdk-dev] [PATCH] eal: fix bug in x86 cmpset

Thomas Monjalon thomas.monjalon at 6wind.com
Sun Nov 6 22:09:07 CET 2016


2016-09-29 18:34, Thomas Monjalon:
> 2016-09-30 02:54, Nikhil Rao:
> > The original code used movl instead of xchgl, this caused
> > rte_atomic64_cmpset to use ebx as the lower dword of the source
> > to cmpxchg8b instead of the lower dword of function argument "src".
> 
> Could you please start the explanation with a statement of
> what is wrong from an user point of view?
> It could help to understand how severe it is.

Please, we need a clear explanation of the bug, and an acknowledgement.


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