On Wed, Mar 26, 2025 at 03:25:07PM +0000, Matthew Wilcox wrote: > > We've got three reports now (two are syzkaller kiddie stuff, but one's a > real workload) of a warning in the page allocator from filesystems > doing reclaim. Essentially they're using GFP_NOFAIL from reclaim > context. This got me thinking about bs>PS and I realised that if we fix > this, then we're going to end up trying to do high order GFP_NOFAIL allocations > in the memory reclaim path, and that is really no bueno. > > https://lore.kernel.org/linux-mm/20250326105914.3803197-1-matt@xxxxxxxxxxxxxxxx/ > > I'll prepare a better explainer of the problem in advance of this. Thanks for proposing this as a last-minute LSF/MM topic! I was looking at this myself, and was going to reply to the mail thread above, but I'll do it here.
