[libvirt] [PATCH] doc: Add statment about permissions needed to do a core dump

Peter Krempa pkrempa at redhat.com
Thu Sep 15 21:00:23 UTC 2011

Dňa 15.9.2011 21:32, Eric Blake wrote / napísal(a):
> That sounds wrong to me. We already have the ability to relabel files 
> and directories so that qemu can access them; why should the core file 
> be any different than any other image file where libvirt is able to 
> grant proper permissions?
Well, I looked through the code and it seemed to me that it's done that 
way. I couldn't reproduce that because my qemu runs with uid 0.
> Also, the wording is misleading - you are talking about 'search' 
> permissions on the parent directories, not 'execute' on the file 
> itself (the x bit is double-duty, execute for files and search for 
> directories). So we should not be mentioning execute permissions. If 
> we can't fix the real bug (that is, that libvirt is not granting 
> proper permissions to qemu to be able to create the core dump), then 
> I'd favor wording more like:
Yes, search permission. I somehow still call it execute even on 
directories even though I am aware of the difference :/ ... I'll fix it.
> Hypervisors may require the user to manually ensure proper permissions 
> on the file named by @to.
That's elegant, thanks :).


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