Slab memory leak in JFFS2 filesystems

Artem Bityutskiy dedekind1 at
Fri Feb 25 07:38:44 EST 2011

On Thu, 2011-02-24 at 18:41 -0600, Johns Daniel wrote:
> I have discovered a kernel memory leak associated with JFFS2
> filesystems. I have verified the leak in kernels 2.6.28 and 2.6.36 on
> a Freescale PowerPC board using this script:
> while :; do FN=$(mktemp /jffs2fs/TMP.XXXXXXXX); \
>    cat /proc/slabinfo |grep "dentry\|size-64 "; sleep 1; /bin/rm $FN; done

Please, check whether they go away after:

echo 3 > /proc/sys/vm/drop_caches

See Documentation/sysctl/vm.txt for more information about what this

Best Regards,
Artem Bityutskiy (Артём Битюцкий)

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