Re: [gentoo-user] =dev-lang/spidermonkey-60.5.2_p0-r4 fails @world update

On Fri, Jun 19, 2020 at 06:08:49PM +0100, Michael wrote:
> On Friday, 19 June 2020 17:10:54 BST urpion@×××.com wrote:
> > On Fri, Jun 19, 2020 at 04:52:30PM +0100, Michael wrote:
>
> > > NP, did you get an OOM error in dmesg when this happened by any chance?
> > > You don't seem to have much RAM, you have no swap and the number of jobs
> > > is relatively high for memory hungry compiles.
> > >
> > > It could be a bug, but unless a report has been filed already in BGO to
> > > this effect, I suggest you add a swapfile, enable it, and try again with
> > > MAKEOPTS="-j1" or "-j2".  Please ask if you need more detail.
> >
> > I was thinking about -j1. I tried -j4. I thought I didn't need swap with
> > >=4GB of RAM, but it makes sense. My machine kinda crawls trying to build
> > that package. Oh man, I'll have to re-partition:-(
>
> A single compile job on a big package can eat >3G of RAM.  I don't know what
> spidermonkey jobs may grow up to, but drop it down to '-j1' and see what you
> get.
>
> A swapfile which you enable on a per ebuild basis if required, can be handy.
> You can configure this in a package.profile file. On an ext4 fs you could do
> this as root:
>
> touch swapfile
> dd if=/dev/zero of=swapfile bs=4096 count=400000
> mkswap -L Swappage swapfile
> swapon swapfile
>
> If it is a btrfs you'll need to tweak things to be able to used it as a swap:
>
> https://wiki.archlinux.org/index.php/Swap#Swap_file

Wow. Thanks Micheal. That's really cool. I will try that.