From: "Jakub Kiciński" <moorray3@wp.pl>
To: Larry Finger <Larry.Finger@lwfinger.net>,
George Moutsopoulos <gmoutso@gmail.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: mediatek mt7630e and ksoftirqd CPU load
Date: Wed, 1 Apr 2015 18:05:43 +0200 [thread overview]
Message-ID: <20150401180543.2b33184d@north> (raw)
In-Reply-To: <5514377C.1070906@lwfinger.net>
On Thu, 26 Mar 2015 11:44:44 -0500, Larry Finger wrote:
> On 03/26/2015 11:12 AM, George Moutsopoulos wrote:
> > Dear developers,
> >
> > if this is not the right place to post this, sorry for the spam. I
> > haven't filed a bug report yet. Tell me if I should. I am not sure if
> > the problem is something kernel developers can solve.
> >
> > On a laptop ASUS TP500LN, I have a wireless pcie card mt7630e from
> > mediatek. It is a wifi/bluetooth combo.
> >
> > The driver is not in the kernel, but mediatek provides it for linux
> > from the download site
> > http://www.mediatek.com/en/downloads/
> >
> > The driver does not support kernel 3.16 and above. I followed the
> > instructions at
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1220146
> >
> > The module compiles and loads succesfully. I followed the post by
> > tobias bora from the ubuntu bug. It compiles on kernel version 3.16
> > and above (tried up to 3.19).
> >
> > Like the rest on the ubuntu bug list, the wifi works and I connect
> > succesfully, but ksoftirqd gets 100% cpu on one of the cores.
> >
> > Shall I open a bug report? I have contacted mediatek twice but they
> > haven't replied. I hope it is something you can look at.
>
> Due to the fact that the driver is not in the kernel, it is not possible to file
> a bug with anyone but the vendor.
Larry, did you notice that rt2x00/mt_linux.c does not have a GPL
header? Do you think this can cause some legal problems if this code
or anything based on it is merged upstream?
> It is possible that someone on this list with Mediatek experience may be able to
> help you, but there is no certainty. That is the downside of using a vendor driver.
I can try to help, sorry for a late response.
George, can you try https://github.com/kuba-moo/mt7630e ? This is a
slightly cleaned up version of the vendor driver V3.14_20140625_v2.
I run it for a few hours and I cannot reproduce the issue you describe.
next prev parent reply other threads:[~2015-04-01 16:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-26 16:12 mediatek mt7630e and ksoftirqd CPU load George Moutsopoulos
2015-03-26 16:44 ` Larry Finger
2015-03-26 16:56 ` George Moutsopoulos
2015-04-01 16:05 ` Jakub Kiciński [this message]
[not found] ` <551c496d.6465b40a.3fc0.26b7@mx.google.com>
2015-04-01 20:01 ` Jakub Kiciński
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