[pvrusb2] My tuners occasionally get stuck

[Roger]

> On Wed, Mar 21, 2012 at 07:46:42PM +0100, Jan Ceuleers wrote:
>On 21/03/12 17:09, Gary Buhrmaster wrote:
>> <conjecture>
>
>Understood, and thanks for your insights.
>
>> Almost certainly a kernel usb issue.  The 1900s and the
>> APC device are likely victims, not the cause.  These types
>> of bug reports (the 'clear tt' ones) with usb devices have a
>> tendency to reoccur on some irregular basis as the usb
>> subsystem in the kernel gets improved.  Usually the
>> problem is patched in the next kernel rev (because others
>> have reported it), although sometimes you have to do the
>> git bisect to find the patch that was "special" to get it fixed.
>
>Indeed my thoughts align with yours: the tuners are significant USB 
>traffic generators which are probably more likely than other devices to 
>expose weaknesses in the kernel USB subsystem. But I did google the 
>kernel log messages without success (probably because they are so terse).
>
>I recently upgraded from Ubuntu 10.10 to 11.04, and I had this problem 
>under 10.10 as well. So the problem is not restricted to the 2.6.38 
>kernel in 11.04.
>
>But I will try a more recent kernel as well before taking it to 
>linux-usb if I still need to.

Gentoo kernel sources marked stable are: 2.6.32(-r29) 3.0.17(-r2) 3.1.10(-r1)

Kernel 3.2.1(-r2) is also marked stable here, but I lost ethernet after 
upgrading to it, so I masked it here.

In other words; kernel-2.6.32, kernel-3.0.17, or kernel-3.1.10 all seem pretty 
stable here.

-- 
Roger
http://rogerx.freeshell.org/