Re: Problems with kernel-2.6.26 and 2.6.27-0.x.rc2

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2008/8/29 Joshua C. <joshuacov@xxxxxxxxxxxxxx>:
> 2008/8/29 Tom London <selinux@xxxxxxxxx>:
>> On Thu, Aug 28, 2008 at 3:13 PM, Joshua C. <joshuacov@xxxxxxxxxxxxxx> wrote:
>>> I have a strange problem with the 2.6.26 series kernel. 2.6.27-rc1
>>> branch is ok but the same thing happens with 2.6.27.rc2 and the
>>> following. 2.6.25 branch is ok.
>>> I filed a bug report here https://bugzilla.redhat.com/show_bug.cgi?id=458901.
>>>
>>> The kernel loads fine until showing "starting udev". then it just
>>> stops and cannot continue. on the 2.6.26 branch i need to keep pressed
>>> atleast one key for it to continue. Then it goes further and
>>> everything freezes when no key is pressed.
>>> 2.6.27.rc1 was ok but the same thing showed in 2.6.27.rc2 onwards.
>>> with the lastes kernel-2.6.27-0.287.rc4.git7.fc10 after "startig udev"
>>> I get black and white stripps on my screen and only hardware reset
>>> helps. This makes me think it is something connected with the kernel
>>> modesetting and my radeon gpu. It could also be udev but it is fine
>>> with 2.6.25 and if i keep at least one key pressed then 2.6.26 works
>>> fine. in everycase dmesg shows nothing. What could it be? How can I
>>> see where the problem is?
>>>
>> Could this be your problem: https://bugzilla.redhat.com/show_bug.cgi?id=455595
>>
>> If so, adding "modprobedebug" to the boot parameters seems to help on
>> my system (not radeon).
>>
>> tom
>> --
>> Tom London
>>
>> --
>> fedora-devel-list mailing list
>> fedora-devel-list@xxxxxxxxxx
>> https://www.redhat.com/mailman/listinfo/fedora-devel-list
>>
>
> I suspect it's Intel's GEM that is causing the problems. The kernel
> boots fine until it has to initialize the devices. And in my case I
> have no display. acpi=off helps me solve the problem but then lots of
> devices don't work. Maybe a kernel code that deals with the device
> initialisation is what's changed between 2.6.25 and 2.6.26/27 series.
>

With the latest kernel-2.6.27-0.290.rc5 I have just a blank screen, no
stripps anymore. I'd like to help with debuging this GEM.

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