From: "Tomas Styblo" <trip@matrix.cyberspace.cz>
To: <linux-kernel@vger.kernel.org>
Subject: Re: 2.4 freezes on VIA KT133
Date: Fri, 1 Jun 2001 00:30:14 +0200 [thread overview]
Message-ID: <000901c0ea21$4383b7e0$1700000a@kamamura> (raw)
It seems the problem is caused by some DMA related bug in the VIA chipset
and/or in the Linux DMA-IDE VIA driver.
I finnaly get rid of the freezes, by simply compiling the kernel completely
without IDE-DMA support. Now hdparm shows disks do not use DMA and
the system is stable, as far as I can say now.
I've tested it VERY intensely last couple of days and
did not manage to freeze it. For 12 hours a lot of concurrent processes
copied gigs of data all over the disks, calculated
CPU intensive crypto etc, the system hasn't frozen. For debugging purposes
I also tried to downgrade to 2.2.19 with IDE-DMA activated.
It crashed. So it really seems DMA is the problem here.
Maybe I did not describe the freezes accurately in my first post. After the
freeze, the screen always went black,
and the system was dead - did not respond to pings, keyboard etc. It was
neccessary to hard reset it.
Tomas
next reply other threads:[~2001-05-31 22:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-31 22:30 Tomas Styblo [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-05-24 22:48 Tomas Styblo
2001-05-24 23:23 ` Mark Hahn
2001-05-25 5:05 ` Albert D. Cahalan
2001-05-25 13:20 ` Mark Hahn
2001-05-25 16:22 ` Alan Cox
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