From: Mark Fasheh Date: Wed, 9 Jun 2010 15:14:26 -0700 Subject: [Ocfs2-devel] [PATCH] ocfs2: Limit default local alloc size within bitmap range. In-Reply-To: <1276072985-7251-1-git-send-email-tao.ma@oracle.com> References: <1276072985-7251-1-git-send-email-tao.ma@oracle.com> Message-ID: <20100609221426.GC24316@wotan.suse.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com On Wed, Jun 09, 2010 at 04:43:05PM +0800, Tao Ma wrote: > In commit 6b82021b9e91cd689fdffadbcdb9a42597bbe764, we increase > our local alloc size and calculate how much megabytes we can > get according to group size and volume size. > But we also need to check the maximum bits a local alloc block > bitmap can have. With a bs=512, cs=32K, local volume with 160G, > it calculate 96MB while the maximum local alloc size is only > 76M. So the bitmap will overflow and corrupt the system truncate > log file. See bug > http://oss.oracle.com/bugzilla/show_bug.cgi?id=1262 > Signed-off-by: Mark Fasheh --Mark -- Mark Fasheh