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SubjectRe: Hang on x86-64, 2.6.9-rc3-bk4
Nick Piggin wrote:
> diff -puN mm/vmscan.c~vm-fix mm/vmscan.c
> --- linux-2.6/mm/vmscan.c~vm-fix 2004-10-17 11:14:02.000000000 +1000
> +++ linux-2.6-npiggin/mm/vmscan.c 2004-10-17 11:20:55.000000000 +1000
> @@ -181,7 +181,7 @@ static int shrink_slab(unsigned long sca
> struct shrinker *shrinker;
>
> if (scanned == 0)
> - return 0;
> + scanned = 1;
>
> if (!down_read_trylock(&shrinker_rwsem))
> return 0;
> @@ -1065,7 +1065,8 @@ scan:
> total_reclaimed += sc.nr_reclaimed;
> if (zone->all_unreclaimable)
> continue;
> - if (zone->pages_scanned > zone->present_pages * 2)
> + if (zone->pages_scanned > (zone->nr_active +
> + zone->nr_inactive) * 4)
> zone->all_unreclaimable = 1;
> /*
> * If we've done a decent amount of scanning and


Nope, this patch does not fix the hang.

Heading for Andrew's pile...

Jeff


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