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Re: wext 64-bit: network manager and wpa_supplicant

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On Tue, 2007-10-09 at 19:20 -0700, Jouni Malinen wrote:

> Unfortunately, I do not have a device that would show the 64-bit issue.
> Could you please remind me which devices are affected and how common
> they are? So far, not very many people have complained about the issues
> with wpa_supplicant on 64-bit systems.

Every time you run a 32-bit wpa_supplicant on a 64-bit system.

> > Could you try wpa_supplicant with kernel patch below on your 32-bit
> > machine? I think this should make the problem show up on 32-bit
> > machines. Not having a 64-bit machine needn't stop you from fixing the
> > alignment problems :) I can then verify that it works and didn't break
> > 64/64 setups if you want.
> 
> This sounds like an interesting way of resolving the lack of hardware
> part of the problem.. ;-)  If this approach is confirmed to work, I
> would be quite a bit more likely to actually find time to take a closer
> look at the problem.

I think this should reproduce the problem since the actual problem is
that on a 64-bit kernel you have more padding that 32-bit userspace
needs to work around.

johannes

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