[U-Boot] Unaligned memory accesses exception

Tom Rini trini at konsulko.com
Fri Aug 24 14:53:27 UTC 2018


On Wed, Aug 22, 2018 at 09:44:16AM +0200, Fernando AE wrote:

> Hello all,
> 
> I'm bringing up U-Boot for an iMX6UL board, and I've encountered
> unaligned memory accesses exceptions while I was trying to test the
> ETH commands (e.g., 'ping').
> 
> After investigation, I found out that the iMX6UL processor traps
> unaligned memory accesses by default. As a workaround, I disabled
> theses checks, hoping for negligible performance loss.
> 
> I'm wondering if it is a bad idea to disable unaligned memory accesses
> during the U-Boot execution, regarding performance issues or other
> drawbacks at the kernel level.

What exactly do you mean by encountered?  Can you post logs?  Thanks.

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20180824/e975c879/attachment.sig>


More information about the U-Boot mailing list