Re: [PATCH][1/2] adjust dirty threshold for lowmem-only mappings

William Lee Irwin III
2004-12-25T19:07:30Z

On Sat, 25 Dec 2004, Andrea Arcangeli wrote:
>> the first place? If that happens it means you're under a lowmem
>> shortage, something you apparently ruled out when you said
>> lowmem_reserve couldn't help your workload.

On Sat, Dec 25, 2004 at 12:59:10PM -0500, Rik van Riel wrote:
> Let me explain a 3rd time:
[...]
> If you have any more questions as to why the bug happens, don't
> hesitate to ask and I'll explain you why this problem happens.

This is an old and well-known problem.

Lifting the artificial lowmem restrictions on blockdev mappings
(thereby nuking mapping->gfp_mask altogether) would resolve a number of
problems, not that anything making that much sense could ever happen.

-- wli