From: Gertjan van Wingerde <gwingerde@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Andi Kleen <andi@firstfloor.org>,
Stefan Lippers-Hollmann <s.L-H@gmx.de>,
linux-wireless@vger.kernel.org, Tim Blechmann <tim@klingt.org>,
rjw@sisk.pl, IvDoorn@gmail.com, linville@tuxdriver.com
Subject: Re: regression: rt2561 frequent "Arrived at non-free entry" errors in 2.6.32
Date: Tue, 08 Dec 2009 22:56:20 +0100 [thread overview]
Message-ID: <4B1ECB84.6010009@gmail.com> (raw)
In-Reply-To: <1260308669.32227.2.camel@johannes.local>
On 12/08/09 22:44, Johannes Berg wrote:
> On Tue, 2009-12-08 at 22:42 +0100, Gertjan van Wingerde wrote:
>
>> OK. Please try again with the attached patch. Basically it disables going
>> to sleep when there are still unacknowledged frames in the TX queues.
>> This mirrors the behavior of the Ralink provided drivers.
>
> Kinda looks like you forgot to actually make it go to sleep once the
> queues are drained though?
>
Well, this is a test patch, to validate my theory that this is where the problem is.
If that is confirmed, then I can start working out a proper solution.
How does mac80211 look at these things anyway. How does it expect the driver to handle
the cases where mac80211 asks the driver to go to sleep because of power saving, and
the driver can't because its queues haven't drained yet?
---
Gertjan.
next prev parent reply other threads:[~2009-12-08 21:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-04 23:32 regression: rt2561 frequent "Arrived at non-free entry" errors in 2.6.32 Andi Kleen
2009-12-06 13:40 ` Gertjan van Wingerde
2009-12-06 17:04 ` Andi Kleen
2009-12-06 17:20 ` Johannes Berg
2009-12-06 17:32 ` Andi Kleen
2009-12-07 9:31 ` Tim Blechmann
2009-12-07 21:58 ` Gertjan van Wingerde
2009-12-09 22:59 ` Tim Blechmann
2009-12-09 23:23 ` Gertjan van Wingerde
2009-12-09 23:49 ` Tim Blechmann
2009-12-07 23:06 ` Stefan Lippers-Hollmann
2009-12-08 9:57 ` Andi Kleen
2009-12-08 10:19 ` Gertjan van Wingerde
2009-12-08 21:42 ` Gertjan van Wingerde
2009-12-08 21:44 ` Johannes Berg
2009-12-08 21:56 ` Gertjan van Wingerde [this message]
2009-12-08 22:00 ` Johannes Berg
2009-12-08 22:49 ` Gertjan van Wingerde
2009-12-08 22:39 ` Stefan Lippers-Hollmann
2009-12-08 22:40 ` Johannes Berg
2009-12-08 22:44 ` Gertjan van Wingerde
2009-12-08 23:53 ` Stefan Lippers-Hollmann
2009-12-09 6:58 ` Gertjan van Wingerde
2009-12-09 8:24 ` Johannes Berg
2009-12-10 0:46 ` Stefan Lippers-Hollmann
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