From: Anatolij Gustschin <agust@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] MPC512x: workaround data corruption for unaligned local bus accesses
Date: Tue, 29 Jun 2010 15:34:06 +0200 [thread overview]
Message-ID: <20100629153406.653b6bc0@wker> (raw)
In-Reply-To: <20100629124714.87A8314EBF8@gemini.denx.de>
Dear Wolfgang,
On Tue, 29 Jun 2010 14:47:14 +0200
Wolfgang Denk <wd@denx.de> wrote:
...
> > BTW, shouldn't we fix print_buffer() also? do_mem_md() doesn't use
> > memcpy() and the issue with corrupted dumps still remains here.
> > I'm testing a patch to fix it. Will submit it soon.
>
> I though about this, too. But then I decided against it. "md" is
> intended to to exactly what the user requests - as is, we can easily
> demonstrate the issue. I consider this an extremely useful debug
> feature. If I command the memory to be read in units of 32 bits I
> really mean that. A "fix" ins print_buffer() whould hush up the
> symptoms, so the problem would be much harder to detect.
Thanks for the explanation, I didn't thought about it. This is
indeed a reasonable debug feature.
Best regards,
Anatolij
next prev parent reply other threads:[~2010-06-29 13:34 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-21 20:29 [U-Boot] [PATCH] MPC5200: workaround data corruption for unaligned local bus accesses Wolfgang Denk
2010-06-22 23:10 ` [U-Boot] [PATCH v2] " Wolfgang Denk
2010-06-23 0:12 ` [U-Boot] [PATCH v3] " Wolfgang Denk
2010-06-25 8:35 ` Detlev Zundel
2010-06-29 9:48 ` [U-Boot] [PATCH] MPC512x: " Wolfgang Denk
2010-06-29 11:49 ` Detlev Zundel
2010-06-29 12:09 ` Wolfgang Denk
2010-06-29 12:41 ` Detlev Zundel
2010-06-29 12:42 ` Joakim Tjernlund
2010-06-29 12:55 ` Wolfgang Denk
2010-06-29 13:06 ` Joakim Tjernlund
2010-06-29 14:21 ` Joakim Tjernlund
2010-06-29 16:19 ` [U-Boot] [PATCH] MPC512x: workaround data corruption forunaligned " Steve Deiters
2010-06-29 19:24 ` Wolfgang Denk
2010-06-29 21:47 ` Joakim Tjernlund
2010-06-29 12:23 ` [U-Boot] [PATCH] MPC512x: workaround data corruption for unaligned " Anatolij Gustschin
2010-06-29 12:47 ` Wolfgang Denk
2010-06-29 13:34 ` Anatolij Gustschin [this message]
2010-06-29 12:45 ` [U-Boot] [PATCH] Use memcpy in print_buffer to fix unaligned dumps Anatolij Gustschin
2010-06-29 12:53 ` Wolfgang Denk
2010-06-29 12:57 ` Wolfgang Denk
2010-06-29 19:42 ` Mike Frysinger
2010-06-29 19:29 ` [U-Boot] [PATCH] MPC512x: workaround data corruption for unaligned local bus accesses Wolfgang Denk
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