Date: Sat, 17 Feb 2007 14:54:49 +0100 From: Max Laier <max@love2party.net> To: freebsd-net@freebsd.org Cc: Jeremie Le Hen <jeremie@le-hen.org>, "V.Chukharev" <chukharev@mail.ru>, cognet@freebsd.org Subject: Re: iwi leaks memory? Message-ID: <200702171454.57301.max@love2party.net> In-Reply-To: <op.tnwacbn30g54sc@localhost> References: <op.tns7i21z0g54sc@localhost> <op.tnu03mar0g54sc@localhost> <op.tnwacbn30g54sc@localhost>
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--nextPart1253199.JX7CTxXP58 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Saturday 17 February 2007 14:27, V.Chukharev wrote: > On Fri, 16 Feb 2007 23:10:24 +0200, V.Chukharev <chukharev@mail.ru>=20 wrote: > > On Fri, 16 Feb 2007 19:43:17 +0200, Jeremie Le Hen=20 <jeremie@le-hen.org> wrote: > >> Hi, > >> > >> cognet@ has once provided me a tiny hack to the iwi(4) driver and > >> I never get such errors. Maybe I'm not suffering enough UP/DOWN > >> cycles to trigger it, but it might be worth trying it. > >> > >> Note that he has insisted that this is a *hack*. > >> > >> The patch is attached. Please let us know if it makes things > >> better. > > > > I cannot apply the patch ;-( > > It seems it's for CURRENT, and I run STABLE. > > I applyed the patch regenerated by Oliver against STABLE (I did not > recieve the message, found it on the list archive, that's the reason > for replying to myself). > > Yes, the patch helps. The driver did not complain after 100 down/up > cycles. Before the patch, it started to complain usually after 6..8 > cycles. Okay ... this confirms that this is a problem with memory fragmentation. =20 It seems that keeping the DMA'able memory around is indeed the best thing=20 we can do. As long as the firmware is as (un)reliable as it is now there=20 is no way around the casual reset. For normal operation it seems best to=20 store the bss firmware in the DMA'able memory and keep it there. That=20 lets us firmware_put() the image itself. I will have a patch later=20 today, unless somebody disagrees and/or has a better idea. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart1253199.JX7CTxXP58 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQBF1wkxXyyEoT62BG0RAh6SAJ9gdR9Q94z5AgFfeVdaXr7mljR1YQCeJpAX 5jmQdiUpGWv5ukNgC7eZXtA= =tCrH -----END PGP SIGNATURE----- --nextPart1253199.JX7CTxXP58--
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