Date: Mon, 7 Jan 2002 12:34:25 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/release/sysinstall install.c label.c sysinstall.h Message-ID: <200201072034.g07KYPI54890@apollo.backplane.com> References: <200201070759.g077xUt53167@freefall.freebsd.org> <20020107141759.B9972@freebie.xs4all.nl> <200201071715.g07HFb312872@apollo.backplane.com> <20020107185251.A10846@freebie.xs4all.nl>
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:> :I just got something like 'Too big swap' when I tried to install using
:> :'A' on an Alpha DS20 using 4.5-RC0. This was on a 2GB disk, the machine
:> :has 1.2GB of RAM. Would that combination of small disk versus lots of ram
:> :be the culprit maybe?
:> :
:> :W/
:>
:> 'Too big swap' during boot? During the sysinstall? I don't see
:
:During sysinstall just after typing 'A'. I will have to retry
:at work if you want the exact error (I know.. me and my miserable
:memory.. :-)
:
:W/
This one?
label.c: msg = "Unable to create the swap partition. Too big?";
Was this on a totally empty disklabel? (no other partitions created?).
We calculate swap at 2x main memory, up to a certain point. So it is
probably trying to create 2.4GB of swap.
Hmm. I could throw code in to prevent it from allocating swap space
greater then 1/4 of available space. What do people think? This is
primarily going to be a problem on systems with large amounts of memory
and tiny amounts of hard disk space.
Perhaps we should skip creating swap entirely in such cases. Say if
(memory * 2) > (available_disk / 2) we would not create a swap. Or
(memory * 2) > (available_disk / 4).
Ideas? It's trivial to code the above conditional up, it would be
placed at approximately line 1192 in /usr/src/release/sysinstall/label.c
-Matt
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