On Thu, May 19, 2016 at 10:39:50AM -0700, Eric Dumazet wrote: > On Thu, 2016-05-19 at 13:34 -0400, Neil Horman wrote: > > On Thu, May 19, 2016 at 08:48:56AM -0700, Eric Dumazet wrote: > > > On Thu, 2016-05-19 at 11:30 -0400, Neil Horman wrote: > > > > Noticed an allocation failure in a network driver the other day on a 32 > > > > bit > > > > system: > > > > > > Presumably driver could fall back to HIGH memory allocation for the page > > > frag. > > > > > Is that safe on a 32 bit system? > > Neil > > This should be. > > Unless a bug somewhere was added, since most dev are using 64bit kernels > these days. > > All frag consumers use the appropriate kmap_atomic()/kunmap_atomic() > pairs before copying data from a page frag. Meaning the page can be in > HIGH memory. > Ok, understood, I'll look into a fallback option soon Neil
> > > > > >
