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Idea Re: GeantMT kernel panic 

Forum: Multithreading
Re: Sad GeantMT kernel panic (Sara)
Re: None Re: GeantMT kernel panic (Sara)
Date: 08 Oct, 2012
From: Andrea Dotti <Andrea Dotti>

Hi Sara,
 indeed if you get the kernel panic only with LUSTRE FS this smells like a problem not directly related to your G4 application, but instead to your specific system.
Do I get correctly that:
1- If you write to a different FS you do not have problems to pass the 2GB "wall"
2- The problem appears for 2GB files, not less

If I got correctly, I suggest the following, to check if the problem is related with your machine or with the application you are using:

Try create a dummy file from bash on the LUSTRE FS of 2GB or more, if the problem is in the system, you should be able to reproduce the hang outside of your application and you will know where the problem is. For example you can use the command dd to generate a file of the desired file size. See: http://www.linuxquestions.org/questions/linux-newbie-8/create-file-of-2-gb-666797/ Or: http://linux.die.net/man/1/dd

Andrea

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1 None: Re: GeantMT kernel panic   (Sara - 08 Oct, 2012)
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