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Re: [Qemu-devel] [PATCH v4 35/35] target-alpha: Emulate LL/SC using cmpx
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From: |
Emilio G. Cota |
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Subject: |
Re: [Qemu-devel] [PATCH v4 35/35] target-alpha: Emulate LL/SC using cmpxchg helpers |
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Date: |
Tue, 4 Oct 2016 20:11:24 -0400 |
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User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Fri, Sep 16, 2016 at 10:46:57 -0700, Richard Henderson wrote:
> Emulating LL/SC with cmpxchg is not correct, since it can
> suffer from the ABA problem. However, portable parallel
> code is writting assuming only cmpxchg which means that in
> practice this is a viable alternative.
s/writting/written/
E.
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