maemo.org - Talk - View Single Post - Easy Debian Fremantle Beta Testing

sulu	2014-01-05 , 10:13
Posts: 915 \| Thanked: 3,209 times \| Joined on Jan 2011 @ Germany	#3050

Originally Posted by misiak

1. I suppose both Cubieboard2 and your pc with qemu-arm installation have newer kernels than 2.6.28?

Correct.
My CB2 runs a custom 3.4.67+ made by the Cubian folks, my PC runs the 3.2.51 Debian kernel.

Originally Posted by misiak

Are you able to install second kernel on your pc, preferably 2.6.28?

I can try to do so in a VM. I remember having done something like that in the past with some troubles due to the age of the kernel, but I can't remember what exactly was the problem.
On the other hand my experience (with x86, arm and ppc) is, that when you get that close to the hardware level you can't simply abstract from one architecture to another. So I'm sceptic if x86-experiments are useful for arm.

Originally Posted by misiak

Googling told me Cubieboard2 supports 3.something (3.4?) kernels only, so I guess downgrading that one is not possible.

Quite frankly, installing custom kernels on the CB2 is above my skills since it involves a lot of special tricks.
Kernels always have "just worked" for me. I've tried some occasional recompiles just for fun but I'm far away from actually being able to do any troubleshooting.

Originally Posted by misiak

2. Again very remote guess, but could you try running gparted from console with "LD_PRELOAD=/path/to/libstdc++.so" ?

Here it is (wheezy/armhf image on the N900):

Code:

# ls -l /usr/lib/arm-linux-gnueabihf/libstdc++.so.6*
lrwxrwxrwx 1 root root     19 Jan  8  2013 /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 -> libstdc++.so.6.0.17
-rw-r--r-- 1 root root 641216 Jan  8  2013 /usr/lib/arm-linux-gnueabihf/libstdc++.so.6.0.17
# export LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
# echo $LD_PRELOAD
/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
# export LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
# gparted
======================
libparted : 2.3
======================
*** glibc detected *** /usr/sbin/gpartedbin: free(): invalid pointer: 0x00287210 ***
Aborted

strace outputs are attached.

edit:
At first I had outputs that contained Locale warnings and therefore might be misleading (pointer address changes etc.). I've reuploaded outputs without these problems.
/edit

Originally Posted by misiak

Maybe comparing "ldd /usr/sbin/gpartedbin" from Cubieboard2, from qemu-armel environment on pc and from n900 in both armel and armhf image would also show something suspicious or give any clues (it would be nice if you could also post them here for reference).

You'll find outputs for the armel image, armhf image, CB2 and my PC (amd64) in the attached tar.gz archive.
My qemu machine doesn't exist anymore since I have the CB2.

Thanks for all the tips!

Attached Files

	ldd_gpartedbin.tar.gz (2.7 KB, 92 views)
	strace_wheezy_w_LD_PRELOAD_locale_fixed.txt (10.9 KB, 122 views)
	strace_wheezy_wo_LD_PRELOAD_locale_fixed.txt (8.2 KB, 112 views)

Last edited by sulu; 2014-01-05 at 10:31.

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