On Wed, 20 Jul 2011, Pekka Enberg wrote: > On Wed, 20 Jul 2011, Konstantin Khlebnikov wrote: > > > The changelog isn't that convincing, really. This is kmem_cache_create() > > > so I'm surprised we'd ever get NULL here in practice. Does this fix some > > > problem you're seeing? If this is really an issue, I'd blame the page > > > allocator as GFP_KERNEL should just work. > > > > nf_conntrack creates separate slab-cache for each net-namespace, > > this patch of course not eliminates the chance of failure, but makes it more > > acceptable. > > I'm still surprised you are seeing failures. mm/slab.c hasn't changed > significantly in a long time. Why hasn't anyone reported this before? I'd > still be inclined to shift the blame to the page allocator... Mel, Christoph? There was a lot of recent fiddling with the reclaim logic. Maybe some of those changes caused the problem? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>