Re: [Xen-devel] [PATCH] pygrub: remove isconfig option

[Firas Azar <firas.azar@xxxxxxxxxx>]

Andrew:

Currently if we use pygrub --isconfig <image>, there is a good chance 
that this command could fail with an "out of memory" error. This can 
happen especially if the image file in question is at least a few 
gigabytes in size and the dom0_mem setting is relatively small. So even 
if any software used this option it is likely it would fail. This 
problem is due to the parser using "readlines" function in GrubConf.py, 
which attempts to load the entire file into memory.
The advantage of "-l -n" option is that it exercises the "real" code 
path, which boots the PV guests.
Regards

--Firas

On 03/22/2016 04:22 PM, Andrew Cooper wrote:
> On 22/03/16 20:06, Firas Azar wrote:
> > The pygrub command option "isconfig" is broken and obsolete. This patch removes it since 
> > the alternate options "-l -n" provide the same functionality.
> Broken how?
>
> Are you sure that no existing software is using that option?
>
> ~Andrew

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