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Old 02-09-2012, 07:29 AM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Hi Zsolt,

Zsolt Rizsanyi wrote:

> Booted into 2.6.32-21, expecting the issue to be gone. To my surprise
> the issue is still present! I don't how this could be. It might be
> that it is caused by some other part of the kernel.
>
> I'm back to the 2.6.35 kernel from experimental.
>
> If you have any idea what to try or check then please ask. Trying many
> kernel version would be too much for me, but I would be willing to try
> a few version or patches.

Sorry for the long quiet. Do you still have access to this system?
Can you reproduce the bug with current squeeze kernels? (No
particular relevant change I can think of; just would like to know
before hunting for a patch to apply.)

If you can still reproduce it, please attach full "dmesg" output from
booting and reproducing the problem on an affected kernel and from
booting an unaffected kernel.

Thanks,
Jonathan



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Old 02-09-2012, 09:07 AM
Zsolt Rizsanyi
 
Default Bug#578912: soft lockups with radeon KMS

Hi Jonathan,
I still have the system, but I have upgraded it to a testing/unstable mix and I'm currently running the 3.2 kernel.
I'm not sure if it would be reasonable to test with 2.6.32 kernel from squeeze on a wheezy system. If it is I can do that, but installing squeeze just to test it seems too much work for me now.


Since nobody else seems to care about this issue and I have moved on to kernel versions where this problem does not exist I suggest to close this bug.
Thanks for your help,

Zsolt
On Thu, Feb 9, 2012 at 9:29 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:


Hi Zsolt,



Zsolt Rizsanyi wrote:



> Booted into 2.6.32-21, expecting the issue to be gone. To my surprise

> the issue is still present! I don't how this could be. It might be

> that it is caused by some other part of the kernel.

>

> I'm back to the 2.6.35 kernel from experimental.

>

> If you have any idea what to try or check then please ask. Trying many

> kernel version would be too much for me, but I would be willing to try

> a few version or patches.



Sorry for the long quiet. *Do you still have access to this system?

Can you reproduce the bug with current squeeze kernels? *(No

particular relevant change I can think of; just would like to know

before hunting for a patch to apply.)



If you can still reproduce it, please attach full "dmesg" output from

booting and reproducing the problem on an affected kernel and from

booting an unaffected kernel.



Thanks,

Jonathan
 
Old 02-09-2012, 01:30 PM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Hi Zsolt,

Zsolt Rizsanyi wrote:

> I still have the system, but I have upgraded it to a testing/unstable mix
> and I'm currently running the 3.2 kernel.
>
> I'm not sure if it would be reasonable to test with 2.6.32 kernel from
> squeeze on a wheezy system.

Yes, it is reasonable to do so, and it is supposed to work.

On the other hand, it is possible that the wheezy/sid userspace is able to
avoid trouble somehow. So if you have time to try 2.6.32-21 from
http://snapshot.debian.org, too, to confirm you can still reproduce
the problem, that would be most useful.

[...]
> Since nobody else seems to care about this issue and I have moved on to
> kernel versions where this problem does not exist I suggest to close this
> bug.

No, we really do want squeeze to work.

Thanks and hope that clarifies a little,
Jonathan



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Old 02-14-2012, 08:32 AM
Zsolt Rizsanyi
 
Default Bug#578912: soft lockups with radeon KMS

Hi Jonathan,

On Thu, Feb 9, 2012 at 3:30 PM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Zsolt Rizsanyi wrote:
> > I still have the system, but I have upgraded it to a testing/unstable mix
> > and I'm currently running the 3.2 kernel.
> >
> > I'm not sure if it would be reasonable to test with 2.6.32 kernel from
> > squeeze on a wheezy system.
>
> Yes, it is reasonable to do so, and it is supposed to work.
>
> On the other hand, it is possible that the wheezy/sid userspace is able to
> avoid trouble somehow. *So if you have time to try 2.6.32-21 from
> http://snapshot.debian.org, too, to confirm you can still reproduce
> the problem, that would be most useful.

Unfortunately it turns out that the radeon drivers from wheezy could
not initialize with 2.6.32-21. X froze taking with it the display. The
underlying system was functional.

Regards,
Zsolt



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Old 02-14-2012, 08:37 AM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Zsolt Rizsanyi wrote:

> Unfortunately it turns out that the radeon drivers from wheezy could
> not initialize with 2.6.32-21. X froze taking with it the display. The
> underlying system was functional.

Perfect, thanks for checking. (That's not unfortunate at all --- it
means you're able to reproduce the bug.) How about 2.6.32-41?



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Old 02-14-2012, 08:41 AM
Zsolt Rizsanyi
 
Default Bug#578912: soft lockups with radeon KMS

Hi Jonathan,

On Tue, Feb 14, 2012 at 10:37 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Zsolt Rizsanyi wrote:
>
>> Unfortunately it turns out that the radeon drivers from wheezy could
>> not initialize with 2.6.32-21. X froze taking with it the display. The
>> underlying system was functional.
>
> Perfect, thanks for checking. *(That's not unfortunate at all --- it
> means you're able to reproduce the bug.) *How about 2.6.32-41?

Not really. You have probably misunderstood. The original problem was
that X started and occasionally froze for shorter or longer periods.

Now it was completely different. X did not really start, but I just
got an empty screen with a blinking cursor. But the keyboard did not
work at all (I could not switch to a linux console with either Alt-F1
or Ctrl-Alt-F1).

I could try 2.6.32-41 but I would be testing for a completely
different (possibly irrelevant) issue.

Regards,
Zsolt



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Old 02-14-2012, 09:22 AM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Zsolt Rizsanyi wrote:
> On Tue, Feb 14, 2012 at 10:37 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:

>> Perfect, thanks for checking. *(That's not unfortunate at all --- it
>> means you're able to reproduce the bug.) *How about 2.6.32-41?
>
> Not really. You have probably misunderstood. The original problem was
> that X started and occasionally froze for shorter or longer periods.

You are right --- I was hoping the two problems might have the same
cause, but there is no reason to be confident about that. Could you
provide "Xorg.0.log" and "dmesg" output from the freeze?

[...]
> I could try 2.6.32-41 but I would be testing for a completely
> different (possibly irrelevant) issue.

I understand. I would be interested in the result from 2.6.32-41
anyway.

Thanks,
Jonathan



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Old 02-14-2012, 09:25 AM
Zsolt Rizsanyi
 
Default Bug#578912: soft lockups with radeon KMS

Hi Jonathan,

On Tue, Feb 14, 2012 at 11:22 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Zsolt Rizsanyi wrote:
>> Not really. You have probably misunderstood. The original problem was
>> that X started and occasionally froze for shorter or longer periods.
>
> You are right --- I was hoping the two problems might have the same
> cause, but there is no reason to be confident about that. *Could you
> provide "Xorg.0.log" and "dmesg" output from the freeze?
>
> [...]
>> I could try 2.6.32-41 but I would be testing for a completely
>> different (possibly irrelevant) issue.
>
> I understand. *I would be interested in the result from 2.6.32-41
> anyway.

OK, I will get around to try both of them again soon

Regards,
Zsolt



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Old 03-16-2012, 10:25 PM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Hi Zsolt,

Zsolt Rizsanyi wrote:
> On Tue, Feb 14, 2012 at 11:22 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
>> Zsolt Rizsanyi wrote:

>>> I could try 2.6.32-41 but I would be testing for a completely
>>> different (possibly irrelevant) issue.
>>
>> I understand. *I would be interested in the result from 2.6.32-41
>> anyway.
>
> OK, I will get around to try both of them again soon

So now I'm in suspense. How does 2.6.32-41 do?

Curious,
Jonathan



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Old 04-04-2012, 09:46 PM
Jonathan Nieder
 
Default Bug#578912: soft lockups with radeon KMS

Jonathan Nieder wrote:
> Zsolt Rizsanyi wrote:
>> On Tue, Feb 14, 2012 at 11:22 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
>>> Zsolt Rizsanyi wrote:

>>>> I could try 2.6.32-41 but I would be testing for a completely
>>>> different (possibly irrelevant) issue.
>>>
>>> I understand. *I would be interested in the result from 2.6.32-41
>>> anyway.
>>
>> OK, I will get around to try both of them again soon
>
> So now I'm in suspense. How does 2.6.32-41 do?

Ping. A squeeze kernel is supposed to work fine on a wheezy/sid
system, and if it doesn't then that is an important bug.

If you have any questions, feel free to ask.

Sorry for the fuss,
Jonathan



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