linux-kernel - Re: [REGRESSION] [BISECTED] Unable to use 3D with Radeon 2100 and UI freezes with Firefox

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Message-Id: <67AE5A41-F50F-4616-B9E1-437CAD9379D3@ime.usp.br>
Date:	Sat, 30 Jul 2011 04:42:52 -0300
From:	Rogério Brito <rbrito@....usp.br>
To:	Dave Airlie <airlied@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	Rogério Theodoro de Brito <rbrito@...il.com>
Subject: Re: [REGRESSION] [BISECTED] Unable to use 3D with Radeon 2100 and UI freezes with Firefox

Hi once again, but things are not good with any kernel past the  
reworked IRQ stuff.

On 2011-07-25, at 05:08, Dave Airlie wrote:

> 2011/7/24 Rogério Brito <rbrito@....usp.br>:
>> After experiencing problems with many post 2.6.38 kernels with X  
>> when I used
>> Firefox to see any webpage that used some of the new HTML5  
>> features (Firefox
>> freeze completely X and I could only log in remotely with SSH), I  
>> took some
>> time to see where things went wrong and, to cut a long story short, I
>> bisected the kernel and I found that a commit of yours was the  
>> first one
>> that introduced a problem with my system:
>
> Can you attach /proc/interrupts as well please.

It seems that the radeon thing is just one of the manifestations of  
the problem.

Today, I noticed another bad symptom, when I accidentally booted with  
kernel 3.0 (I have many kernels in GRUB2): I printed a LaTeX document  
with only 2 pages of pure text.  My printer is an inkjet printer  
connected via USB to my computer and it took about 6 minutes to print  
those 2 pages. The printer head moved printing something, then it  
paused a bit, then it printed some more, then it paused some more etc.

I just rebooted with 2.6.38 and the very same document was printed  
in, like, 15 seconds...

So, is there anything that I could do to rectify this situation? I  
can give you loads of dumps from here, as long as you tell me what  
would be useful.

Thanks,

-- 
Rogério Brito : rbrito@...e.usp.br,gmail.com} : GPG key 4096R/BCFCAAAA
http://rb.doesntexist.org : Packages for LaTeX : algorithms.berlios.de
DebianQA: http://qa.debian.org/developer.php?login=rbrito%40ime.usp.br

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