Return-path: Received: from crystal.sipsolutions.net ([195.210.38.204]:43771 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753213AbXJJIpP (ORCPT ); Wed, 10 Oct 2007 04:45:15 -0400 Subject: Re: wext 64-bit: network manager and wpa_supplicant From: Johannes Berg To: Jouni Malinen Cc: jt@hpl.hp.com, Dan Williams , linux-wireless@vger.kernel.org In-Reply-To: <20071010022041.GL14401@jm.kir.nu> References: <1190292526.18521.52.camel@johannes.berg> <20070920165545.GA29452@bougret.hpl.hp.com> <1190307669.18521.94.camel@johannes.berg> <20070920205602.GA15373@bougret.hpl.hp.com> <1190385414.18521.148.camel@johannes.berg> <20070926235135.GA16051@bougret.hpl.hp.com> <1191921316.4013.5.camel@johannes.berg> <20071010022041.GL14401@jm.kir.nu> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-SCcKeDJbKQOrvohCWCiA" Date: Wed, 10 Oct 2007 10:46:03 +0200 Message-Id: <1192005963.4013.66.camel@johannes.berg> (sfid-20071010_094521_032370_D646E2B2) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-SCcKeDJbKQOrvohCWCiA Content-Type: text/plain Content-Transfer-Encoding: quoted-printable 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. >=20 > 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 --=-SCcKeDJbKQOrvohCWCiA Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIVAwUARwyRSqVg1VMiehFYAQLPDA//YbvF+SjROPlPc71sLws441EK6ymFoZaV pdpEYniBUVQPXg5pOB3etFDG1yUaXUPsDVAKHWm4Gr4uxadSTCizQ9b/KuEkBcwm F9XcyYdKNTYEk5oNZ7Zn3JABuBheSjZMgJz4scz289TCdaRrsEFF5+14MZ61jKo6 48XHtA4fdzqc7G08obMdqY7K9sJIda2Xk3/au7IZGZ+4D4l5wx5ED0sJNM+xmRRv gOw/inkP/QtlptYhzwJUBGtwok6e5hCNDnxz6yGfhsFqqQQdmaCiW2VAHpI6Ya+u z/P441EvEqz0BwDwfKy2x/PGrPs4D9bQqzLZ1wjF7iHrW4hzs4so53Ez2TEHLL2s 5rV54iWXL9ew/l9rj1UguEI8qIs2EO9MFp3UqRyx6puO8VgbrAjrPtbpXyUvjAoR ng0Nvt4uh7xQNbHJpkY/TYvxnbx73KIOfIFz4AXABae3xVQaeDmQWu2Qc7I2V/PW eCDzmVAUY69rYrqYHUvrX7S55A54G6rJZjSfH0yYwNHLb+IcN+CcxdyDAoXXUs49 4twcuYjCHpn8+LpLjXFYgyc5jVBpaxCRbuWkxppLXbNg0Ny0dgrkdMRF+fbkQCA8 KGZXLHLoLRDY65+/HLtqQOLJMLkzT7lY6wfFI2Qxpe9k59suINcR27qiZPwgvz6r Ch6Z/2s8ciQ= =IqFT -----END PGP SIGNATURE----- --=-SCcKeDJbKQOrvohCWCiA--