Re: [Bug 67651] Bisected: Lots of fragmented mmaps cause gimp tofail in 3.12 after exceeding vm_max_map_count

From: Mel Gorman
Date: Thu Jan 23 2014 - 02:28:58 EST

On Wed, Jan 22, 2014 at 11:52:15AM -0800, Andrew Morton wrote:
> On Wed, 22 Jan 2014 19:08:16 +0000 Mel Gorman <mgorman@xxxxxxx> wrote:
> > X-related junk is there was because I was using a headless server and
> > xinit directly to launch gimp to reproduce the bug.
> I've never done this. Can you share the magic recipe for running an X
> app in this way?

The relevant part of the test script is

# Build a wrapper script to launch gimp
cat > << EOF
/usr/bin/gimp -i -b "(mmtests-open-image \"$FILENAME\")" -b "(gimp-quit 0)" > $LOGDIR_RESULTS/gimp-out.1 2>&1
echo \$? > gimp-exit-code
chmod u+x

$TIME_CMD xinit ./ 2> $LOGDIR_RESULTS/time.1
RETVAL=`cat gimp-exit-code`

It's clumsy because the application would start with no window manager
and looking at it again, it probably was not even necessary because of
the -i switch in gimp.

Previously when I needed to automate an X app I configured the machine to
login automatically, exported the DISPLAY variable in the test script and
used wmctrl to detect if an application had a window displayed yet.

Mel Gorman
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