Re: [PATCH 1 of 53] ipath - fix spinlock recursion bug

[Joshua Hudson]

On 5/12/06, Bryan O'Sullivan <bos@xxxxxxxxxxxxx> wrote:
> The local loopback path for RC can lock the rkey table lock without
> blocking interrupts.  The receive interrupt path can then call
> ipath_rkey_ok() and deadlock.  Since the lock only protects a 64 bit read,
> the lock isn't needed.
Uhhh, a 64 bit read is not atomic on all architectures. Certainly not i386.

Might want to verify safety of this.
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