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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[-- Attachment #1 --] On Saturday 17 February 2007 14:27, V.Chukharev wrote: > On Fri, 16 Feb 2007 23:10:24 +0200, V.Chukharev <chukharev@mail.ru> wrote: > > On Fri, 16 Feb 2007 19:43:17 +0200, Jeremie Le Hen <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. It seems that keeping the DMA'able memory around is indeed the best thing we can do. As long as the firmware is as (un)reliable as it is now there is no way around the casual reset. For normal operation it seems best to store the bss firmware in the DMA'able memory and keep it there. That lets us firmware_put() the image itself. I will have a patch later today, unless somebody disagrees and/or has a better idea. -- /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQBF1wkxXyyEoT62BG0RAh6SAJ9gdR9Q94z5AgFfeVdaXr7mljR1YQCeJpAX 5jmQdiUpGWv5ukNgC7eZXtA= =tCrH -----END PGP SIGNATURE-----
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