From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] Revert "ARM: pxa: call debug_ll_io_init for earlyprintk"
Date: Mon, 06 Oct 2014 21:30:22 +0200 [thread overview]
Message-ID: <1863148.6Gay0UyraW@wuerfel> (raw)
In-Reply-To: <87egulausv.fsf@free.fr>
On Monday 06 October 2014 20:59:28 Robert Jarzmik wrote:
> Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> writes:
>
> > This reverts commit 2111667b4677 ("ARM: pxa: call debug_ll_io_init for
> > earlyprintk")
> >
> > This commit gives the following backtrace on PXA/tosa early in the boot
> > time when DEBUG_LL is enabled. It is due to overlap between uart memory
> > and PERIPH_ memory block mapped by pxa_map_io.
>
> Indeed, all available UARTs IO mappings are already covered by pxa_map_io(), so
> the revert will remove the bug and keep the DEBUG_LL functionality. I suppose
> you did the test with the revert and the lowlevel debugging works, right ?
>
> Haojian, if you are still taking patches for v3.18-rcs, please have my :
> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
This is a regression fix, so it should go into 3.18 and 3.17-stable once
everybody agrees that it is the correct solution.
Arnd
prev parent reply other threads:[~2014-10-06 19:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 13:32 [PATCH] Revert "ARM: pxa: call debug_ll_io_init for earlyprintk" Dmitry Eremin-Solenikov
2014-10-06 18:59 ` Robert Jarzmik
2014-10-06 19:29 ` Robert Jarzmik
2014-10-06 21:02 ` Andrew Ruder
2014-10-06 21:18 ` Arnd Bergmann
2014-10-06 21:44 ` Robert Jarzmik
2014-10-06 21:59 ` Andrew Ruder
2014-10-07 9:18 ` Arnd Bergmann
2014-10-07 19:33 ` Robert Jarzmik
2014-10-07 21:36 ` Arnd Bergmann
2014-10-12 13:37 ` Robert Jarzmik
2014-10-13 22:17 ` Andrew Ruder
2014-10-19 19:19 ` Robert Jarzmik
2014-10-06 21:55 ` Andrew Ruder
2014-10-06 19:30 ` Arnd Bergmann [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1863148.6Gay0UyraW@wuerfel \
--to=arnd@arndb.de \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox