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SubjectRe: __alloc_pages: 4-order allocation failed
On Thu, Apr 26, 2001 at 08:00:12PM +0200, Szabolcs Szakacsits wrote:
>
> On Thu, 26 Apr 2001, Jeff V. Merkey wrote:

The request should fail after two or three attempts rather than hang
the entire system waiting for memory.

Jeff

>
> > I am seeing this as well on 2.4.3 with both _get_free_pages() and
> > kmalloc(). In the kmalloc case, the modules hang waiting
> > for memory.
>
> One possible source of this hang is due to the change below in
> 2.4.3, non GPF_ATOMIC and non-recursive allocations (PF_MEMALLOC is set)
> will loop until the requested continuous memory is available.
>
> Szaka
>
> diff -u --recursive --new-file v2.4.2/linux/mm/page_alloc.c
> linux/mm/page_alloc.c--- v2.4.2/linux/mm/page_alloc.c Sat Feb 3
> 19:51:32 2001
> +++ linux/mm/page_alloc.c Tue Mar 20 15:05:46 2001
> @@ -455,8 +455,7 @@
> memory_pressure++;
> try_to_free_pages(gfp_mask);
> wakeup_bdflush(0);
> - if (!order)
> - goto try_again;
> + goto try_again;
> }
> }
>
> -
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