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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 06-27-2011, 03:17 AM   #1
schliz
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Linux Angstrom stuck


Can anybody give me hints:
I have a Variscite board running Linux kernel 2.6.32 and Angstrom.
What can trigger my Linux OS to stuck completely? The screen displays my application and the complete board stuck. No redirected /home/messages entry and no generation of a core file (ulimit -c unlimited at /etc/profile).

What can I do or test, it does not seem to be from the running application?

Thank you in advance.
Georg
 
Old 06-28-2011, 08:22 AM   #2
smallpond
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Code:
grep CONFIG_MAGIC_SYSRQ /boot/config-`uname -r`
If that's set to "y" then you should be able to dump the stack of the stuck process into the messages file with the Magic System Request Key "w". See:
http://www.kernel.org/doc/Documentation/sysrq.txt

If the system is really locked up you can use "c" if you feel up to analyzing a crash dump.
 
Old 06-30-2011, 04:29 AM   #3
schliz
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Thank you very much I will try this.
Georg
 
  


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