From: Tim Hockin <thockin@hockin.org>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Andi Kleen <ak@suse.de>, Erick Turnquist <jhujhiti@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: Lost Ticks on x86_64
Date: Sun, 7 Aug 2005 14:24:25 -0700 [thread overview]
Message-ID: <20050807212425.GA7926@hockin.org> (raw)
In-Reply-To: <1123440679.12766.5.camel@mindpipe>
On Sun, Aug 07, 2005 at 02:51:19PM -0400, Lee Revell wrote:
> > It's most likely bad SMM code in the BIOS that blocks the CPU too long
> > and is triggered in idle. You can verify that by using idle=poll
> > (not recommended for production, just for testing) and see if it goes away.
> >
>
> WTF, since when do *desktops* use SMM? Are you telling me that we have
> to worry about these stupid ACPI/SMM hardware bugs on the desktop too?
SMM is how BIOSes do legacy support (which stops at OS-handover). It's
also how some BIOSes do ECC reporting and logging.
We just do pci tweaks to turn it off in the OS.
next prev parent reply other threads:[~2005-08-07 21:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5348b8ba050806204453392f7f@mail.gmail.com.suse.lists.linux.kernel>
2005-08-07 11:36 ` Lost Ticks on x86_64 Andi Kleen
2005-08-07 17:07 ` Erick Turnquist
2005-08-07 17:48 ` Tim Hockin
2005-08-07 18:46 ` Erick Turnquist
2005-08-07 20:14 ` Tim Hockin
2005-08-08 12:01 ` Andi Kleen
2005-08-08 16:47 ` Tim Hockin
2005-08-08 16:51 ` Andi Kleen
2005-08-08 18:09 ` Lee Revell
2005-08-07 18:51 ` Lee Revell
2005-08-07 20:04 ` Zwane Mwaikambo
2005-08-07 21:24 ` Tim Hockin [this message]
2005-08-07 14:29 Parag Warudkar
2005-08-07 16:19 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2005-08-07 3:44 Erick Turnquist
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