On Thu, Dec 12, 2019 at 12:19:11PM +0100, Joerg Roedel wrote: > Hi, > > On Thu, Dec 12, 2019 at 06:54:12PM +0800, Chen-Yu Tsai wrote: > > I'd like to report a very severe performance regression due to > > > > mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() in stable kernels > > Yes, that is a known problem, with a couple of reports already in the > past months. And I posted a fix from which I thought it is on its way > upstream, but apparently its not: > > https://lore.kernel.org/lkml/20191009124418.8286-1-joro@xxxxxxxxxx/ Ah, I missed that it is in linux-next already. Sorry for the noise. Joerg
