| Date | Fri, 12 May 2006 18:01:21 -0700 | From | "Joshua Hudson" <> | Subject | Re: [PATCH 1 of 53] ipath - fix spinlock recursion bug |
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On 5/12/06, Bryan O'Sullivan <bos@pathscale.com> 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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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