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Old 03-04-2013, 05:15 PM   #1
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Very large kcore file, is this normal?

I know it's a virtual file, but this is getting excessive. My hard drive was full, so i restarted my computer and that seemed to fix the memory issue, but this kcore file is 140TB. That can't be normal. Should I just leave it alone? or is there something i can/should do about it?

Here's a picture of the file properties.
Old 03-04-2013, 05:54 PM   #2
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Those should answer it for you. The /proc/kcore file will NEVER consume any actual hard drive space. Its a virtual file.
Old 03-04-2013, 10:19 PM   #3
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It's actually a virtual file created by system kernel, which seems to be in /proc, but does not actually exist. It do not consume any H/D.

To check, once try to move or copy it:
~$  sudo mv /proc/kcore /proc/kcore.old
mv: cannot mv '/proc/kcore' to '/proc/kcore.old' : No such file or directory
~$  sudo cp -p /proc/kcore /proc/kcore.old
cp: cannot create a regular file '/proc/kcore.old' : No such file or directory
So you need not to worry about that.
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Old 03-05-2013, 09:10 AM   #4
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It's always 140TB on an x86_64 system. /proc/kcore is a window into the system's virtual address space, and that's the size of the virtual address space.

Last edited by rknichols; 03-05-2013 at 09:12 AM.
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