From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Meyer <thomas@m3y3r.de>, Ingo Molnar <mingo@elte.hu>,
Stefan Richter <stefanr@s5r6.in-berlin.de>,
Thomas Gleixner <tglx@linutronix.de>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
LKML <linux-kernel@vger.kernel.org>,
Adrian Bunk <bunk@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Natalie Protasevich <protasnb@gmail.com>,
Gary Hade <garyhade@us.ibm.com>
Subject: Re: ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24)
Date: Wed, 26 Mar 2008 23:17:44 +1100 [thread overview]
Message-ID: <1206533864.10573.44.camel@pasglop> (raw)
In-Reply-To: <20080326101450.GA9060@jurassic.park.msu.ru>
On Wed, 2008-03-26 at 13:14 +0300, Ivan Kokshaysky wrote:
>
> Yeah, it's resource issue for sure. The 00:1e.0 is a transparent
> bridge,
> so I blame commit 8fa5913d54f3b1e09948e6a0db34da887e05ff1f
> (PCI: remove transparent bridge sizing). It's wrong for two reasons:
> - we cannot ignore standard windows of a transparent bridge as they
> always positive decode, so they are potential source of address
> conflicts;
> - that patch just broke whole bridge setup logic in unpredictable way.
The root of the problem is again HW vendors getting wild I think...
Some bridges are fully transparent, some have explicit decode windows
but are also transparent for whatever else and we definitely don't deal
with it.
Ben.
next prev parent reply other threads:[~2008-03-26 12:23 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-22 1:59 2.6.25-rc6-git6: Reported regressions from 2.6.24 Rafael J. Wysocki
2008-03-22 2:52 ` Jeff Garzik
2008-03-22 11:11 ` Ingo Molnar
2008-03-22 5:33 ` Andrew Morton
2008-03-22 11:15 ` Ingo Molnar
2008-03-22 17:53 ` Rafael J. Wysocki
2008-03-22 16:32 ` Heiko Carstens
2008-03-22 17:56 ` Rafael J. Wysocki
2008-03-22 16:34 ` ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24) Stefan Richter
2008-03-22 17:24 ` Thomas Meyer
2008-03-22 17:58 ` Rafael J. Wysocki
2008-03-22 18:27 ` Stefan Richter
2008-03-22 19:02 ` Stefan Richter
2008-03-22 21:33 ` Linus Torvalds
2008-03-22 21:58 ` Thomas Gleixner
2008-03-22 21:59 ` H. Peter Anvin
2008-03-22 22:27 ` ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24) [Bug 10080] Stefan Richter
2008-03-22 23:28 ` ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24) Yinghai Lu
2008-03-22 23:31 ` H. Peter Anvin
2008-03-23 2:00 ` Yinghai Lu
2008-03-23 2:39 ` H. Peter Anvin
2008-03-23 3:30 ` Yinghai Lu
2008-03-22 23:01 ` Linus Torvalds
2008-03-22 23:50 ` Stefan Richter
2008-03-23 6:35 ` Ingo Molnar
2008-03-24 19:34 ` Thomas Meyer
2008-03-24 19:47 ` Ingo Molnar
2008-03-24 20:17 ` Thomas Meyer
2008-03-24 20:47 ` Linus Torvalds
2008-03-26 3:39 ` Benjamin Herrenschmidt
2008-03-26 23:25 ` Benjamin Herrenschmidt
2008-03-24 19:58 ` Thomas Meyer
2008-03-24 20:50 ` Linus Torvalds
2008-03-24 21:24 ` Stefan Richter
2008-03-24 21:47 ` Stefan Richter
2008-03-25 7:31 ` Ingo Molnar
2008-03-25 16:50 ` Ingo Molnar
2008-03-25 17:06 ` Stefan Richter
2008-03-25 18:32 ` Thomas Meyer
2008-03-25 20:11 ` Ingo Molnar
2008-03-25 20:29 ` Ingo Molnar
2008-03-25 21:08 ` Thomas Meyer
2008-03-25 21:47 ` Linus Torvalds
2008-03-25 22:02 ` Thomas Meyer
2008-03-26 10:14 ` Ivan Kokshaysky
2008-03-26 12:17 ` Benjamin Herrenschmidt [this message]
2008-03-26 13:54 ` [patch] pci: revert "PCI: remove transparent bridge sizing" Ingo Molnar
2008-03-26 17:45 ` Thomas Meyer
2008-03-26 18:07 ` Gary Hade
2008-03-26 18:33 ` Linus Torvalds
2008-03-26 20:30 ` Gary Hade
2008-03-26 20:46 ` Linus Torvalds
2008-03-26 20:58 ` Ivan Kokshaysky
2008-03-26 21:41 ` Linus Torvalds
2008-03-26 21:57 ` Benjamin Herrenschmidt
2008-03-26 22:07 ` Alan Cox
2008-03-26 22:27 ` Benjamin Herrenschmidt
2008-03-26 22:10 ` Ingo Molnar
2008-03-26 22:29 ` Benjamin Herrenschmidt
2008-03-26 22:47 ` Linus Torvalds
2008-03-26 22:54 ` Benjamin Herrenschmidt
2008-03-26 23:18 ` Benjamin Herrenschmidt
2008-03-26 22:30 ` Ingo Molnar
2008-03-26 22:31 ` Linus Torvalds
2008-03-26 22:47 ` Alan Cox
2008-03-26 23:17 ` Benjamin Herrenschmidt
2008-03-26 23:29 ` Ivan Kokshaysky
2008-03-26 23:43 ` Linus Torvalds
2008-03-27 17:12 ` Linus Torvalds
2008-03-27 22:18 ` Ivan Kokshaysky
2008-03-27 22:34 ` Linus Torvalds
2008-03-28 19:24 ` Gary Hade
2008-03-28 20:46 ` Gary Hade
2008-03-30 15:44 ` Ivan Kokshaysky
2008-03-26 23:45 ` Benjamin Herrenschmidt
2008-03-26 21:29 ` Ingo Molnar
2008-03-26 11:12 ` ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24) Ivan Kokshaysky
2008-03-25 21:02 ` Thomas Meyer
2008-03-25 23:33 ` Benjamin Herrenschmidt
2008-03-26 0:03 ` Yinghai Lu
2008-03-26 0:12 ` Benjamin Herrenschmidt
2008-03-23 12:57 ` 2.6.25-rc6-git6: Reported regressions from 2.6.24 Alan Cox
2008-03-26 16:30 ` Ray Lee
2008-03-26 17:02 ` Adrian Bunk
2008-03-26 22:11 ` Rafael J. Wysocki
2008-03-27 10:18 ` Romano Giannetti
2008-03-27 14:43 ` Ray Lee
2008-03-31 18:21 ` Linus Torvalds
2008-03-31 19:29 ` Mark Lord
2008-03-31 21:04 ` Tino Keitel
2008-03-31 21:26 ` Tino Keitel
2008-04-03 19:06 ` 2.6.25-rc7/8: Another resume regression Mark Lord
2008-04-05 2:27 ` Mark Lord
2008-04-07 10:51 ` Rafael J. Wysocki
2008-04-07 15:51 ` Mark Lord
2008-04-07 17:40 ` Rafael J. Wysocki
2008-04-08 15:35 ` Mark Lord
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