On Thu, Mar 16, 2023 at 04:55:31PM -0700, Luis Chamberlain wrote: > On Wed, Mar 15, 2023 at 05:41:53PM +0100, David Hildenbrand wrote: > > I expect to have a machine (with a crazy number of CPUs/devices) available > > in a couple of days (1-2), so no need to rush. > > > > The original machine I was able to reproduce with is blocked for a little > > bit longer; so I hope the alternative I looked up will similarly trigger the > > issue easily. > > OK give this a spin: > > https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/log/?h=20230316-module-alloc-opts > > I'm seeing about ~86 MiB saving on the upper bound on memory usage > while hammering on kmod test 0008, and this is on a small system. > > Probably won't help *that* much but am curious... if it helps somewhat. How much cpu count BTW? Luis