linux-kernel - Re: [PATCH] i486 CR4 oops, no_console

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080819033710.GD17528@spacedout.fries.net>
Date:	Mon, 18 Aug 2008 22:37:11 -0500
From:	David Fries <david@...es.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>,
	Pavel Machek <pavel@....cz>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] i486 CR4 oops, no_console_suspend

On Mon, Aug 18, 2008 at 08:41:20AM +0200, Ingo Molnar wrote:
> 
> applied to tip/x86/urgent, thanks David. I've changed the conditions to 
> read_cr4_safe() instead - that's cleaner. Could you please check whether 
> the patch below works fine too on your box?

Yes the 486 suspends and resumes with this patch.

Is there any known problem with no_console_suspend and serial
consoles?  It worked to print the oops for me to track this down, and
Documentation/kernel-parameters.txt says it is known to work with
serial consoles, but on resume only kernel messages can output to the
serial console.  The getty on the serial port can't raed or write and
processes trying to write to the port just hang without getting any
data across.  The serial port works fine across suspends without
the no_console_suspend argument.  Does anyone else see this?

-- 
David Fries <david@...es.net>
http://fries.net/~david/ (PGP encryption key available)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/