Re: [gentoo-user] Re: Cohorent pool size too small...

[thegeezer <thegeezer@thegeezer.net>]

On 06/10/14 17:34, meino.cramer@gmx.de wrote:
> Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de> [14-10-06 17:56]:
>> On Sun, Oct 05, 2014 at 07:44:03PM +0200, meino.cramer@gmx.de wrote:
>>> walt <w41ter@gmail.com> [14-10-05 19:36]:
>>>> On 10/05/2014 07:54 AM, meino.cramer@gmx.de wrote:
>>>>> walt <w41ter@gmail.com> [14-10-05 16:16]:
>>>>>>> On 10/05/2014 06:52 AM, meino.cramer@gmx.de wrote:
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> while trying to get a mt7601sta (UWN200 WiFi dongle) driver running
>>>>>>>>> and working I came accross this in the dmesg output:
>>>>>>>>>
>>>>>>>>> [    9.931938] usb 2-1: device v148f p7601 is not supported
>>>>>>> This looks to me like it's the real error, not the one below.
>>>>> What I dont understand is: If I provide the kernel driver...why does
>>>>> the kernel "decides" not to support the hardware the driver itsself
>>>>> supports...?
>>>> Where did you get the driver?  Are you sure it's really the right one?
>>>>
>>>>
>>>>
>>> One of the main maintainer for the Beaglebone black kernel sources
>>> (Robert C. Nelson) point me to his git repository of this driver.
>>>
>>> I am now back to kernel 3.8.13, where this stuff runs...
>>> (The kernel I tried it before was 3.14.19)
>>> But this kernel version get no much updates thess days and is 
>>> somehow old...
>>>
>> So you tried to run a driver for 3.8.x on a 3.14.x kernel?
>> Such things often result in breakage as, while the kernels interface to
>> userspace is very stable, the internal interfaces aren't stable at all. Likely
>> there would be some other stuff necessary to get the driver to work properly.
>> Some googling around led me to [1] though, which seems to imply that there is
>> support on newer kernels (3.15.10 and newer), if you use the right patch...
>>
>> So maybe you are sucessful with that...
>>
>> WKR
>> Hinnerk
>>
>> [1] http://www.spinics.net/lists/linux-wireless/msg126291.html
>
> Moin Hinnerk, 
> (hopefully have guessed this greet correctly...I am from that
> part of Germany ;)
>
> I have the source of the driver exclusivly compiled for 3.8.13
> as for 3.14.something (cant remember). 
> 3.14.x has some other problems (on that embedded platform) like
> not powering off when shutdown, random reboots and such.
> So decided to go back to 3.8.13.
> Yesterday I started updateing (eix-sync and emerge) that Gentoo
> and it ends up in an endless loop (bash update) of configureing
> (damn slow on that mini iron) and compiling - 

just a small aside - you might like to read up on cross compiling and
save yourself a world of pain
http://dev.gentoo.org/~armin76/arm/beaglebone/install.xml

> as it looks -
> of a single file.
> After more than 10 hours I CTRL-C that, reupated and now I am
> ...updateing the bash again.
> Sigh.
> Currently "fun" is something else...
>
> Is the 3.15.10++ branch free of things like random reboot and
> not powering off?
>
> Best regards,
> mcc
>
>
>