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SubjectRe: kernel 3.2 crashes too early on HP dc7700 and HP t5000 series
Date
On wtorek, 10 stycznia 2012 o 12:49:05 Dmitry D. Khlebnikov wrote:
> Hello,
>
> I've tried to test the recently released 3.2 version on a couple of my
> PCs (one is HP dc7700, an SFF PC running on Intel E6300, another is HP
> t5710 thin client running Transmeta's Efficeon). In both cases the
> kernel crashed during the first seconds the control was given to it by
> the bootloader.
>
> I decided to investigate, so I've compiled a version using 'make
> allnoconfig' - and it has crashed with the same symptoms: once the
> kernel gets the execution control a screen is filled up with random colour
> rubbish and after 15 seconds or so my LCD turns off into the power
> saving state. The machine looks to be locked up since it doesn't react
> on the keyboard.
>
> Well, I thought that an early printk's may help me to determine what's
> going on so I recompiled the kernel with them + a couple of other
> debugging options (like x86 bootup debugging code), but after I rebooted
> into the newly compiled kernel I got the very same lock-up.
>
> Both these PCs are running fine with 3.1.5 and I'm now downloading
> 3.1.8 (just to confirm that 3.1 series are working on this hardware).
>
> This message is just to notify the community that there is some issue
> with 3.2 on old HP hardware. I'll try to figure out what's wrong and if
> I find anything I'll post a follow-up.
>
> I'd appreciate any hints on how to debug this kind of crashes. Right
> now, I'm thinking re: adding some dirty debugging code into the kernel
> initialisation just to figure out where it crashes.
>
> Please include me into CC if you are going to reply to this message
> since I'm not subscribed to LKML.

I created a Bugzilla entry at
https://bugzilla.kernel.org/show_bug.cgi?id=42611
for your bug report, please add your address to the CC list in there, thanks!
--
Maciej Rutecki
http://www.mrutecki.pl


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