2.6.25.8-rt7 Bugs

2.6.25.8-rt7 Bugs

[Matthew Smith]

Hi Folks

I am trying to run 2.6.25.8-rt7, patched via the RT version of ketchup
on my ThinkPad (Core2Duo CPU) to provide a low-latency base for audio
applications (Jack, Rosegarden, Hydrogen, Zynaddsubfx).

Jack is throwing xruns and, on boot, I am seeing a load of bugs (the
actually say BUG) so I have been advised to post my bugs here.  Here's
my dmesg:

<http://www.smiffysplace.com/files/dmesg_rt_20080801>

And my kernel configuration:

<http://www.smiffysplace.com/files/kconfig_rt_20080801>

Have I configured something wrong, or is this a real bug?  I'm quite
happy to try other kernel versions but don't want to move to a 2.6.26 as
there are other driver issues that affect me and don't really want to go
any older than the Gentoo-patched 2.6.23 that I am running for general
use (I'm dual-booting to the RT kernel).

Just in case it's relevant, I can't disable ACPI; this machine has
either a design or a manufacturing fault - if I don't manually set the
fan to run at full speed all the time, the GPU (I think) overheats and
the whole thing locks up.

Cheers

M

-- 
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
Business: http://www.smiffytech.com/
Personal: http://www.smiffysplace.com/
LinkedIn: http://www.linkedin.com/in/smiffy

Re: 2.6.25.8-rt7 Bugs

[John Kacur]

On Fri, Aug 1, 2008 at 6:07 AM, Matthew Smith <matt@smiffytech.com> wrote:
> Hi Folks
>
> I am trying to run 2.6.25.8-rt7, patched via the RT version of ketchup
> on my ThinkPad (Core2Duo CPU) to provide a low-latency base for audio
> applications (Jack, Rosegarden, Hydrogen, Zynaddsubfx).
>
> Jack is throwing xruns and, on boot, I am seeing a load of bugs (the
> actually say BUG) so I have been advised to post my bugs here.  Here's
> my dmesg:
>
> <http://www.smiffysplace.com/files/dmesg_rt_20080801>
>
> And my kernel configuration:
>
> <http://www.smiffysplace.com/files/kconfig_rt_20080801>
>
> Have I configured something wrong, or is this a real bug?  I'm quite
> happy to try other kernel versions but don't want to move to a 2.6.26 as
> there are other driver issues that affect me and don't really want to go
> any older than the Gentoo-patched 2.6.23 that I am running for general
> use (I'm dual-booting to the RT kernel).
>
> Just in case it's relevant, I can't disable ACPI; this machine has
> either a design or a manufacturing fault - if I don't manually set the
> fan to run at full speed all the time, the GPU (I think) overheats and
> the whole thing locks up.
>
> Cheers

Hi Matthew

If you don't want to move up to a 2.6.26 kernel, I wonder if you
should try the latest 2.6.24 rt kernel which is 2.6.24.7-rt17
http://rt.et.redhat.com/download/

Good Luck
John

Re: 2.6.25.8-rt7 Bugs

[Matthew Smith]

Quoth Carsten Emde at 2008-08-01 15:51...
> <snip/> Can't you use 2.6.24.7-rt17? <snip/>

Thanks to those who responded on this.  2.6.24.7-rt17 boots without all 
the nasty messages, so I will proceed with this.

It hasn't got rid of the Jack xruns (I'm actually getting more now), but 
I think that this is probably one to bounce back to the Linux Audio 
Users list.

Cheers

M

-- 
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
Business: http://www.smiffytech.com/
Personal: http://www.smiffysplace.com/
LinkedIn: http://www.linkedin.com/in/smiffy

Re: 2.6.25.8-rt7 Bugs

[Mark Knecht]

On Sun, Aug 3, 2008 at 4:29 PM, Matthew Smith <matt@smiffytech.com> wrote:
> Quoth Carsten Emde at 2008-08-01 15:51...
>>
>> <snip/> Can't you use 2.6.24.7-rt17? <snip/>
>
> Thanks to those who responded on this.  2.6.24.7-rt17 boots without all the
> nasty messages, so I will proceed with this.
>
> It hasn't got rid of the Jack xruns (I'm actually getting more now), but I
> think that this is probably one to bounce back to the Linux Audio Users
> list.
>
> Cheers
>
> M
>

Yeah, I thought my machine was farther along but I see I'm still using
2.6.24-rt1so I'm getting a bit old at this point. I should update
also. I see there's an rt-sources-2.6.25.8-r7 in the Gentoo pro-audio
overlay. I'll see if I can try that out.

Cheers,
Mark