Messages in this thread | | | Subject | Re: aoe fails on sparc64 | From | Roland Dreier <> | Date | Mon, 19 Sep 2005 11:29:16 -0700 |
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David> Although it's very much discouraged to dereference David> unaligned pointers, especially in performance critical code David> (which this AOE case is not, thankfully), because David> performance will be really bad as the trap handler has to David> fix up the access on RISC platforms.
Also, ia64 has a tendency to print an ugly message in the kernel log for unaligned accesses. Has anyone tried AoE on ia64?
It might be better to change the AoE code to use get_unaligned(), just to document what's going on. Although clearly the sparc64 patch is correct as well -- we should never silently return the wrong data.
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