linux-kernel - Re: Performance/resume issues on Toshiba NB305

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: <20110225223357.GE24686@thinkpad-t410>
Date:	Fri, 25 Feb 2011 16:33:57 -0600
From:	Seth Forshee <seth.forshee@...onical.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: Performance/resume issues on Toshiba NB305

On Fri, Feb 25, 2011 at 11:11:31PM +0100, Thomas Gleixner wrote:
> On Fri, 25 Feb 2011, Seth Forshee wrote:
> > On Fri, Feb 25, 2011 at 03:17:47PM -0500, Steven Rostedt wrote:
> > > > One possible explanation here is that the performance problems are also
> > > > related to hangs in SMI handlers until there's a timer interrupt,
> > > > although I don't know how that explains why some of the command line
> > > > options eliminate the performance issues.
> > > 
> > > Sounds like a buggy BIOS to me. Is there upgrades available for this
> > > box?
> > 
> > It does sound like a buggy BIOS. I've already flashed the latest BIOS
> > though, so no luck there.
> 
> Has the BIOS some knob to disable that feature^Wcrap? It's often
> hidden behind some "$manufacturer super extra mode".

You mean the "hang in SMI until a timer interrupt fires" feature? ;)

There's nothing in the BIOS settings that looks relevant to either of
the topics at hand.

--
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/