[U-Boot] Recent commit to env_nand.c causing saveenv to hang

[Stephen Warren]

On 09/07/2012 10:44 AM, Prabhakar Lad wrote:
> On Fri, Sep 7, 2012 at 9:35 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
>> On 09/07/2012 06:17 AM, Prabhakar Lad wrote:
>>> Hi Stephen,
>>>
>>> I checked out the latest code and try flashing on DM355 for NAND boot mode,
>>> I saw that saveenv was causing a hang. A little debugging pointed me to
>>> this patch http://patchwork.ozlabs.org/patch/174069/ reverting this
>>> patch saveenv
>>> works fine.
>>> Has this patch being tested ? Or is that I am missing out some where.
>>
>> Yes, I've definitely used this on the NVIDIA Tegra Harmony board.
>>
>> I tested the patch on top of repo u-boot-tegra.git branch master, but
>> the patch ended up getting applied directly by Wolfgang to u-boot.git. I
>> don't think that should cause any issues though; the patch shouldn't be
>> dependant on anything Tegra-specific.
>>
>> I just re-tested to make sure. The exact code I tested is at:
>> git at github.com:swarren/u-boot.git mainline_dev
>>
>> Do you have any clue why it's hanging or crashing? Perhaps you can add
>> some debug statements to see exactly where it's happening?
>
> I added some debug statements and saw that in hexport_r() function
> where  memset(res, '\0', size); is done this where it hangs :(.
> hope this might help.

For the list archives: I believe the following patch should fix this:

http://lists.denx.de/pipermail/u-boot/2012-September/133476.html

Sorry for the breakage.