From: Yoann Vandoorselaere <yoann@mandrakesoft.com>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: "Richard B. Johnson" <root@chaos.analogic.com>,
linux-kernel@vger.kernel.org
Subject: Re: Possible critical VIA vt82c686a chip bug (private question)
Date: 26 Oct 2000 22:11:54 +0200 [thread overview]
Message-ID: <878zrbl5v9.fsf@alph.dyndns.org> (raw)
In-Reply-To: <20001026190309.A372@suse.cz> <Pine.LNX.3.95.1001026134131.13342A-100000@chaos.analogic.com> <20001026200220.A492@suse.cz>
In-Reply-To: Vojtech Pavlik's message of "Thu, 26 Oct 2000 20:02:20 +0200"
Vojtech Pavlik <vojtech@suse.cz> writes:
> On Thu, Oct 26, 2000 at 01:42:29PM -0400, Richard B. Johnson wrote:
>
> > > > ../drivers/block/ide.c, line 162, on version 2.2.17 does bad things
> > > > to the timer. It writes 0 to the control-word for timer 0. This
> > > > does the following:
> > [Snipped...]
> > >
> > > Well, at least on 2.4.0-test9, the above timing code is #ifed to
> > > DISK_RECOVERY_TIME > 0, which in turn is #defined to 0 in
> > > include/linux/ide.h.
> > >
> > > So this is not our problem here. Anyway I guess it's time to hunt for
> > > i8259 accesses in the kernel that lack the necessary spinlock, even when
> > > they're not probably the cause of the problem we see here.
> >
> > Okay, good.
>
> Ok, here is a list of places within the kernel that access the PIT
> timer, plus the method of locking (i386 arch only):
[...]
Ok, I just tested if the problem was always present without
the IDE subsystem...
The answer is it is not... so it isn't an IDE problem.
--
-- Yoann http://www.mandrakesoft.com/~yoann/
An engineer from NVidia, while asking him to release cards specs said :
"Actually, we do write our drivers without documentation."
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next prev parent reply other threads:[~2000-10-26 20:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m3d7gnd31m.fsf@test1.mandrakesoft.com>
[not found] ` <Pine.LNX.3.95.1001026115039.12337A-100000@chaos.analogic.com>
2000-10-26 17:03 ` Possible critical VIA vt82c686a chip bug (private question) Vojtech Pavlik
2000-10-26 17:42 ` Richard B. Johnson
2000-10-26 18:02 ` Vojtech Pavlik
2000-10-26 20:11 ` Yoann Vandoorselaere [this message]
2000-10-26 20:16 ` Vojtech Pavlik
2000-10-26 21:05 ` Yoann Vandoorselaere
2000-10-26 21:15 ` Vojtech Pavlik
2000-10-26 21:24 ` Yoann Vandoorselaere
2000-10-26 21:25 ` Vojtech Pavlik
2000-10-27 10:02 ` Martin Mares
2000-10-27 10:49 ` Vojtech Pavlik
2000-10-27 10:58 ` Yoann Vandoorselaere
2000-10-27 11:01 ` Vojtech Pavlik
2000-10-27 11:16 ` Yoann Vandoorselaere
2000-10-27 11:15 ` Vojtech Pavlik
[not found] <20001026173244.B8290@suse.cz>
2000-10-27 12:04 ` bart
2000-10-27 13:41 ` Vojtech Pavlik
2000-10-28 5:39 ` TimO
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