Hi Ben,
please consider including the following commit in the 3.2 stable
kernel:
commit 75c7caf5a052ffd8db3312fa7864ee2d142890c4
Author: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Date: Sat Jun 22 17:21:00 2013 +0300
zram: allow request end to coincide with disksize
Pass valid_io_request() checks if request end coincides with disksize
(end equals bound), only fail if we attempt to read beyond the bound.
mkfs.ext2 produces numerous errors:
[ 2164.632747] quiet_error: 1 callbacks suppressed
[ 2164.633260] Buffer I/O error on device zram0, logical block 153599
[ 2164.633265] lost page write due to I/O error on zram0
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
It fixes an bug[1] that has been introduced by
12a7ad3 zram: avoid access beyond the zram device
and that has already been fixed in the other affected stable trees.
[1] http://bugs.launchpad.net/bugs/1246664
Cheers,
--
Luis
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