On Fri, 7 Sep 2012 23:38:05 -0700, Ben Widawsky <ben at bwidawsk.net> wrote: > On Tue, 4 Sep 2012 21:00:58 +0100 > Chris Wilson <chris at chris-wilson.co.uk> wrote: > > > Just a spark of an idea to see if this is valid. > > > > Given extreme memory pressure where we must zap our own caches and > > bound buffers or else we fail to allocate a structure, we have a > > choice of propagating that interrupt back to userspace or to quietly > > suppress it in the hope of making the allocation. > > i915_gem_shrink_all() is a likely candidate for that last ditch > > effort that currently fails to propagate the interruption back... > > What's the BKM for making the memory all go bye-bye (ie. how to test > this patch a bit)? There are a few i-g-t that purposesly exercise resource starvation, or you can just use firefox (which has the added bonus of throwing in signals for free)! -Chris -- Chris Wilson, Intel Open Source Technology Centre
