Re: 2.6.9 page allocation failure. order:0, mode:0x20

[Michael Clark]

On 10/28/04 22:11, Michael Clark wrote:
> On 10/28/04 17:40, Andrew Morton wrote:
> > I'm confused.  2.6.9 uses __GFP_NOWARN in add_to_swap() so the messages
> > should be suppressed.  Are you sure you're using 2.6.9?
>
>
> Ya is 2.6.9, has uml-skas patch also but that doesn't touch swap_state.c
>
> Ah, I see I think, radix_tree_node_alloc first calls kmem_cache_alloc
> with root->gfp_mask and only if this fails dips into the preloaded
> percpu node stash. Perhaps root->gfp_mask has !__GFP_NOWARN
>
> Shouldn't it use the preloaded nodes that have been reserved anyway.

From my other traces - looks like as_get_io_context also needs to use
__GFP_NOWARN in get_io_context as a NULL return appears to be handled.
This is the only other noise i'm getting in my tests.

~mc
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