Re: [PATCH] x86, kdump: Set crashkernel_low automatically

From: Vivek Goyal
Date: Mon Mar 11 2013 - 16:45:42 EST

On Mon, Mar 11, 2013 at 01:38:53PM -0700, Eric W. Biederman wrote:

> I would argue
> that it might be better to figure out how to use a small memory
> foot-print and try to keep that foot-print from growing.

In my experience, trying to keep foot-print small has kind of been a
losing battle.

- People want more functionality in second kernel, want to dump to more
complicated IO stacks and that requires pulling in more drivers,
more libraries, more daemons, more user space tools and what not.

- Now we use dracut generated initramfs and it has been growing in size.
Now systemd has been pulled in too.

- Drivers keep on increasing their memory usage.

- makdumpfile needs more memory to dump large machines.

There are so many places where memory usage is going up and trying
to keep track of all that has been very hard.

So I would think that it is a good goal to have but continuously
increasing memory usage is inevitable.

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