From: Paul Mackerras <paulus@samba.org>
To: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com>
Cc: akpm@osdl.org, Greg KH <greg@kroah.com>,
muli@il.ibm.com, Linux Kernel <linux-kernel@vger.kernel.org>,
kristen.c.accardi@intel.com
Subject: Re: [patch][Intel-IOMMU] Fix for IOMMU early crash
Date: Wed, 12 Sep 2007 05:48:52 +1000 [thread overview]
Message-ID: <18150.61732.490669.269794@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20070912192854.GA32610@askeshav-devel.jf.intel.com>
Keshavamurthy, Anil S writes:
> Subject: Fix IOMMU early crash
>
> This patch avoids copying pci_bus's->sysdata to
> pci_dev's->sysdata as one can easily obtain
> the same through pci_dev->bus->sysdata.
At the moment this will cause ppc64 to crash, since we rely on
pci_dev->sysdata pointing to some node in the firmware device tree,
either the device's node or the node for a parent bus.
We could change the ppc64 code to use pci_dev->bus->sysdata in the
case when pci_dev->sysdata is NULL, which would fix the problem. I
think that change should be incorporated as part of this patch so that
we don't break git bisection.
In other words I don't want to see this patch applied as it stands.
Paul.
next prev parent reply other threads:[~2007-09-11 20:59 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-08 20:05 [RFC][Intel-IOMMU] " Keshavamurthy, Anil S
2007-09-09 11:16 ` Muli Ben-Yehuda
2007-09-10 15:43 ` Keshavamurthy, Anil S
2007-09-09 17:51 ` Muli Ben-Yehuda
2007-09-11 17:22 ` Keshavamurthy, Anil S
2007-09-09 17:37 ` Paul Mackerras
2007-09-11 17:42 ` Keshavamurthy, Anil S
2007-09-10 20:25 ` Muli Ben-Yehuda
2007-09-11 20:43 ` Keshavamurthy, Anil S
2007-09-12 19:28 ` [patch][Intel-IOMMU] " Keshavamurthy, Anil S
2007-09-11 19:48 ` Paul Mackerras [this message]
2007-09-12 21:55 ` Keshavamurthy, Anil S
2007-09-11 22:05 ` [BUG:] forcedeth: MCP55 not allowing DHCP Casey Dahlin
2007-09-18 1:59 ` Casey Dahlin
2007-09-13 1:29 ` [patch][Intel-IOMMU] Fix for IOMMU early crash Keshavamurthy, Anil S
2007-09-14 16:30 ` Paul Mackerras
2007-09-25 17:07 ` Keshavamurthy, Anil S
2007-10-03 21:13 ` [patch take 2][Intel-IOMMU] " Keshavamurthy, Anil S
2007-10-04 1:19 ` Benjamin Herrenschmidt
2007-10-04 1:36 ` Keshavamurthy, Anil S
2007-10-04 3:39 ` Benjamin Herrenschmidt
2007-10-04 19:20 ` Keshavamurthy, Anil S
2007-10-05 3:08 ` Benjamin Herrenschmidt
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