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authorRichard Genoud <richard.genoud@gmail.com>2014-06-24 12:12:58 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2014-06-25 16:37:37 +0200
commitcbf3bfa57a419202c2bc26f3ff8ae21d3d3bf8b2 (patch)
treea068db7e2be4e0edeaecead5ca210be0c48001d7 /procps/free.c
parentde3cae1348f212effd3f2838301596d15c6b3e54 (diff)
downloadbusybox-cbf3bfa57a419202c2bc26f3ff8ae21d3d3bf8b2.tar.gz
nanddump: correct rounding to next page (lead to infinite loop)
The rounding to next page formula was wrong: ex: (len | ~(meminfo->writesize - 1)) + 1; len=128K writesize=4K (len | ~(meminfo->writesize - 1)) + 1 => 4 294 963 201 ?! correct rounding formula: ((len - 1) | (meminfo->writesize - 1)) + 1 => 128K len = 130K ((len - 1) | (meminfo->writesize - 1)) + 1 => 132K modprobe nandsim parts="20,20" badblocks="22,23" without patch: nanddump /dev/mtd1 | wc -c [...] infinite loop with the patch: nanddump /dev/mtd1 | wc -c 327680 Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'procps/free.c')
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