Re: [PATCH] bio_uncopy_user mem leak
From: Andrew Morton
Date: Tue Aug 17 2004 - 17:52:36 EST
Kurt Garloff <garloff@xxxxxxx> wrote:
>
> When using bounce buffers for SG_IO commands with unaligned
> buffers in blk_rq_map_user(), we should free the pages from
> blk_rq_unmap_user() which calls bio_uncopy_user() for the
> non-BIO_USER_MAPPED case. That function failed to free the
> pages for write requests.
>
> So we leaked pages and you machine would go OOM. Rebooting
> helped ;-)
Eureka. Thanks.
This really should trigger a 2.6.8.2. We'll see.
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