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SubjectRe: Tracking down a memory leak
Marco Colombo <marco@esi.it> wrote:
>
> Thanks to everybody who replied to me. Here's more data:
>
> sh-2.05b# sort -rn +1 /proc/slabinfo | head -5
> biovec-1 7502216 7502296 16 226 1 : tunables 120 60 0 : slabdata 33196 33196 0
> bio 7502216 7502262 96 41 1 : tunables 120 60 0 : slabdata 182982 182982 0

Are you using RAID?




From: Neil Brown <neilb@cse.unsw.edu.au>

insert a missing bio_put when writing the md superblock.

Without this we have a steady growth in the "bio" slab.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

drivers/md/md.c | 1 +
1 files changed, 1 insertion(+)

diff -puN drivers/md/md.c~md-bio-leak-fix drivers/md/md.c
--- 25/drivers/md/md.c~md-bio-leak-fix 2005-06-27 22:29:13.000000000 -0700
+++ 25-akpm/drivers/md/md.c 2005-06-27 22:29:13.000000000 -0700
@@ -338,6 +338,7 @@ static int super_written(struct bio *bio

if (atomic_dec_and_test(&rdev->mddev->pending_writes))
wake_up(&rdev->mddev->sb_wait);
+ bio_put(bio);
return 0;
}

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