Hi jemicheng,
On Thu, Jul 03, 2014 at 11:06:08PM +0800, jemicheng . wrote:
> After I trace the nandwrite.c for this problem, I found that the program
> runs into a function dump_bad.
> Here is a snippet of the dump_bad function.
>
> static void dump_bad(struct mtd_info_user *meminfo, unsigned len, int oob)
> {
> unsigned char buf[meminfo->writesize];
> unsigned count;
>
> /* round len to the next page */
> len = (len | ~(meminfo->writesize - 1)) + 1;
>
>
> The value of len is 131072 and meminfo->writesize is 2048
> After the round len calculation, the len becomes 4294965249
>
> My partition is only 5MB but nanddump tries to write almost 4GB for the
> dumped image.
>
> Is something wrong with the dump_bad function or is there something else
> wrong?
This should be fixed by
http://git.busybox.net/busybox/commit/?id=cbf3bfa57a419202c2bc26f3ff8ae21d3d3bf8b2.
Please try current Busybox master, or apply this patch to your version, and
report back.
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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