On Wed, 02 Nov 2011 03:44:54 -0500, Rex Dieter rdieter@math.unl.edu wrote:

Daniel Drake wrote:

...

qt failed to build both times in moji due to running out of memory on the selected builder. So I built it on one of OLPC's systems with 3GB:

http://dev.laptop.org/~dsd/for-f15-arm/qt-4.7.4-3.fc15.tar

Importing this should hopefully fix a significant number of builds.

If that problem is ongoing, consider disabling patch105 (qt-everywhere- opensource-src-4.7.1-webkit_debug_javascriptcore.patch) on arm, which should help a bunch.

Does the machine have a wired network port? The trick I use on my Kirkwood machines (love those gigabit ports) is to use nbd for /var/lib/mock and swap, with zram swap set to 1/2 the physical memory. With nbd backed by my storage box (13 SATA disks, ZFS), the disk I/O performance for intensive tasks such as mock building has improved by several orders of magnitude compared to even the fastest available SD cards when it comes to random-write I/O. That should cure your OOM without crippling the performance or killing your flash.

Gordan