Gentoo Archives: gentoo-user

From: thegeezer <thegeezer@×××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: Cohorent pool size too small...
Date: Mon, 06 Oct 2014 18:47:25
Message-Id: 5432E3AB.7060108@thegeezer.net
In Reply to: Re: [gentoo-user] Re: Cohorent pool size too small... by meino.cramer@gmx.de
1 On 06/10/14 17:34, meino.cramer@×××.de wrote:
2 > Hinnerk van Bruinehsen <h.v.bruinehsen@×××××××××.de> [14-10-06 17:56]:
3 >> On Sun, Oct 05, 2014 at 07:44:03PM +0200, meino.cramer@×××.de wrote:
4 >>> walt <w41ter@×××××.com> [14-10-05 19:36]:
5 >>>> On 10/05/2014 07:54 AM, meino.cramer@×××.de wrote:
6 >>>>> walt <w41ter@×××××.com> [14-10-05 16:16]:
7 >>>>>>> On 10/05/2014 06:52 AM, meino.cramer@×××.de wrote:
8 >>>>>>>>> Hi,
9 >>>>>>>>>
10 >>>>>>>>> while trying to get a mt7601sta (UWN200 WiFi dongle) driver running
11 >>>>>>>>> and working I came accross this in the dmesg output:
12 >>>>>>>>>
13 >>>>>>>>> [ 9.931938] usb 2-1: device v148f p7601 is not supported
14 >>>>>>> This looks to me like it's the real error, not the one below.
15 >>>>> What I dont understand is: If I provide the kernel driver...why does
16 >>>>> the kernel "decides" not to support the hardware the driver itsself
17 >>>>> supports...?
18 >>>> Where did you get the driver? Are you sure it's really the right one?
19 >>>>
20 >>>>
21 >>>>
22 >>> One of the main maintainer for the Beaglebone black kernel sources
23 >>> (Robert C. Nelson) point me to his git repository of this driver.
24 >>>
25 >>> I am now back to kernel 3.8.13, where this stuff runs...
26 >>> (The kernel I tried it before was 3.14.19)
27 >>> But this kernel version get no much updates thess days and is
28 >>> somehow old...
29 >>>
30 >> So you tried to run a driver for 3.8.x on a 3.14.x kernel?
31 >> Such things often result in breakage as, while the kernels interface to
32 >> userspace is very stable, the internal interfaces aren't stable at all. Likely
33 >> there would be some other stuff necessary to get the driver to work properly.
34 >> Some googling around led me to [1] though, which seems to imply that there is
35 >> support on newer kernels (3.15.10 and newer), if you use the right patch...
36 >>
37 >> So maybe you are sucessful with that...
38 >>
39 >> WKR
40 >> Hinnerk
41 >>
42 >> [1] http://www.spinics.net/lists/linux-wireless/msg126291.html
43 >
44 > Moin Hinnerk,
45 > (hopefully have guessed this greet correctly...I am from that
46 > part of Germany ;)
47 >
48 > I have the source of the driver exclusivly compiled for 3.8.13
49 > as for 3.14.something (cant remember).
50 > 3.14.x has some other problems (on that embedded platform) like
51 > not powering off when shutdown, random reboots and such.
52 > So decided to go back to 3.8.13.
53 > Yesterday I started updateing (eix-sync and emerge) that Gentoo
54 > and it ends up in an endless loop (bash update) of configureing
55 > (damn slow on that mini iron) and compiling -
56
57 just a small aside - you might like to read up on cross compiling and
58 save yourself a world of pain
59 http://dev.gentoo.org/~armin76/arm/beaglebone/install.xml
60
61 > as it looks -
62 > of a single file.
63 > After more than 10 hours I CTRL-C that, reupated and now I am
64 > ...updateing the bash again.
65 > Sigh.
66 > Currently "fun" is something else...
67 >
68 > Is the 3.15.10++ branch free of things like random reboot and
69 > not powering off?
70 >
71 > Best regards,
72 > mcc
73 >
74 >
75 >

Replies

Subject Author
Re: [gentoo-user] Re: Cohorent pool size too small... meino.cramer@×××.de