Re: [PATCH] fix double unlock_page() in 2.6.26-rc5-mm3 kernel BUG at mm/filemap.c:575!
From: Valdis . Kletnieks
Date: Fri Jun 13 2008 - 00:42:37 EST
On Fri, 13 Jun 2008 10:44:44 +0900, KAMEZAWA Hiroyuki said:
> quick fix for double unlock_page();
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamewzawa.hiroyu@xxxxxxxxxxxxxx>
> Index: linux-2.6.26-rc5-mm3/mm/truncate.c
> ===================================================================
> --- linux-2.6.26-rc5-mm3.orig/mm/truncate.c
> +++ linux-2.6.26-rc5-mm3/mm/truncate.c
> @@ -104,8 +104,8 @@ truncate_complete_page(struct address_sp
>
> cancel_dirty_page(page, PAGE_CACHE_SIZE);
>
> - remove_from_page_cache(page);
> clear_page_mlock(page);
> + remove_from_page_cache(page);
> ClearPageUptodate(page);
> ClearPageMappedToDisk(page);
> page_cache_release(page); /* pagecache ref */
Confirming this quick fix works on my laptop that was hitting this crash -
am now up and running on -rc5-mm3.
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