From: Pavel Machek <pavel@ucw.cz>
To: Tim Gardner <tim.gardner@canonical.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Suspend to RAM fault in VT when resuming
Date: Tue, 13 Mar 2007 22:24:57 +0100 [thread overview]
Message-ID: <20070313212457.GD12370@elf.ucw.cz> (raw)
In-Reply-To: <45F709F2.80504@canonical.com>
Hi1
> I've chased one of the 'Suspend to RAM' resume problems to a specific
> line in drivers/char/vt.c, see attached 2.6.21-rc3 diff with
Has suspend/resume ever worked on that hardware?
> TRACE_RESUME() instrumentation. The macro scr_writew resolves to '*addr
> = val', which appears to be causing the problem. I've verified that the
> pointer is not NULL, but don't know if its really valid. Its pretty
> tough to tell what is happening, but on a Dell XPS it just hangs. A Dell
> Precision blinks the keyboard lights.
It is possible that video is not initialized at that point, and that
hardware goes seriously unhappy when you access non-existing vga. Does
it resume ok when you completely disable video support?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2007-03-13 21:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-13 20:30 Suspend to RAM fault in VT when resuming Tim Gardner
2007-03-13 21:24 ` Pavel Machek [this message]
2007-03-14 1:42 ` Tim Gardner
2007-03-19 15:07 ` Pavel Machek
2007-03-19 16:15 ` Tim Gardner
2007-03-19 20:45 ` Pavel Machek
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=20070313212457.GD12370@elf.ucw.cz \
--to=pavel@ucw.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=tim.gardner@canonical.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.