[ccache] Re: [REGRESSION] Recent change to kernel spikes out ccache/distcc

Kyle McMartin kyle at infradead.org
Sun Jan 11 21:48:37 GMT 2009

On Thu, Jan 08, 2009 at 04:31:58PM -0500, Theodore Tso wrote:
> On Thu, Jan 08, 2009 at 02:17:03PM -0500, Dave Jones wrote:
> > 
> > Fedora rawhide users noticed this same problem this morning too,
> > when I pushed out a build that eats up a gig of diskspace thanks
> > to the number of modules we have, that are all afflicted by this problem.
> > 
> > I'll have to revert  ad7a953c for our builds to continue tracking mainline
> > without monopolising the diskspace in the Fedora build system.
> Note: you'll probably also have revert 9bb48247 (allow stripping of
> generated symbols under CONFIG_KALLSYMS_ALL) since I believe it
> depends on ad7a953c.

This doesn't appear to be the culprit. Or at least, doesn't fix the

	make INSTALL_MOD_PATH=mods/ modules_install

with a distro kernel config (ie: Fedora's[1]) still results in
1.8GB of modules (willy checked that it wasn't a Fedora toolchain
bug by reproducing on a Debian system.)

As near as I can ascertain, this is limited to x86_64, at least on

kyle at localhost ~/misc $ for i in *.rpm; do echo $i; rpm
	-qip $i | grep Size; done
Size        : 124858478                        License:
Size        : 66313693                         License:
Size        : 1041480317                       License:
Size        : 56252360                         License:

x86_64 is an order of magnitude bigger than the rest, which have
identical debug options enabled.

regards, Kyle

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