[U-Boot] ARM926: U-Boot crash while relocating

[U-Boot] ARM926: U-Boot crash while relocating

[Amit Virdi]

Hello All,

While I'm running u-boot on spear320 board, I'm seeing a crash. The crash
happens during the .rel.dyn relocations. While debugging, I found that the
.rel.dyn section contains a word with all the bits set (0xFFFFFFFF) and the
code is trying to fix-up this location.

The u-boot address range is 0x00700000 - 0x0072E678. The .rel.dyn section
starts at 0x0072E678 and extends upto 0x00733CC0.

I checked the entire .rel.dyn section generated for the u-boot and found
only one such location. It was supposed to have the address lying in the
u-boot address range.

I shall be thankful for any help.

Regards
Amit Virdi

[U-Boot] ARM926: U-Boot crash while relocating

[Albert ARIBAUD]

Hi Amit,

Le 15/02/2012 12:30, Amit Virdi a ?crit :
> Hello All,
>
> While I'm running u-boot on spear320 board, I'm seeing a crash. The crash
> happens during the .rel.dyn relocations. While debugging, I found that the
> .rel.dyn section contains a word with all the bits set (0xFFFFFFFF) and the
> code is trying to fix-up this location.
>
> The u-boot address range is 0x00700000 - 0x0072E678. The .rel.dyn section
> starts at 0x0072E678 and extends upto 0x00733CC0.
>
> I checked the entire .rel.dyn section generated for the u-boot and found
> only one such location. It was supposed to have the address lying in the
> u-boot address range.
>
> I shall be thankful for any help.
>
> Regards
> Amit Virdi

Do you build a mainline u-boot, and if so, which commit do you build 
exactly?

Amicalement,
-- 
Albert.

[U-Boot] ARM926: U-Boot crash while relocating

[Amit Virdi]

Ciao Albert,

On Fri, Feb 17, 2012 at 2:53 PM, Albert ARIBAUD
<albert.u.boot@aribaud.net>wrote:

> Hi Amit,
>
> Le 15/02/2012 12:30, Amit Virdi a ?crit :
>
>  Hello All,
>>
>> While I'm running u-boot on spear320 board, I'm seeing a crash. The crash
>> happens during the .rel.dyn relocations. While debugging, I found that the
>> .rel.dyn section contains a word with all the bits set (0xFFFFFFFF) and
>> the
>> code is trying to fix-up this location.
>>
>> The u-boot address range is 0x00700000 - 0x0072E678. The .rel.dyn section
>> starts at 0x0072E678 and extends upto 0x00733CC0.
>>
>> I checked the entire .rel.dyn section generated for the u-boot and found
>> only one such location. It was supposed to have the address lying in the
>> u-boot address range.
>>
>> I shall be thankful for any help.
>>
>> Regards
>> Amit Virdi
>>
>
> Do you build a mainline u-boot, and if so, which commit do you build
> exactly?
>
>
Yes, I built the mainline u-boot - v2011.12. I debugged the problem further
and found that it is not "0xFFFFFFFF" written in the original generated
.rel.dyn area. The u-boot code was accessing the .bss segment before the
relocation was complete. As a result, u-boot was writing 0xFFFFFFFF in the
.rel.dyn/.bss area.

I have sent a patch<http://www.mail-archive.com/u-boot@lists.denx.de/msg77621.html>on
the mailing list, the other day, to fix the problem .

Thanks for your support.

Regards
Amit Virdi

Amicalement,
> --
> Albert.
>