From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: Armada XP (mvebu) PCIe memory (BAR/window) re-allocation
Date: Thu, 3 Apr 2014 20:24:55 +0200 [thread overview]
Message-ID: <20140403202455.599d1c6b@skate> (raw)
In-Reply-To: <20140403182322.GA9509@obsidianresearch.com>
Dear Jason Gunthorpe,
On Thu, 3 Apr 2014 12:23:22 -0600, Jason Gunthorpe wrote:
> Your oops seem to suggest that the very first MMIO read from the AHCI
> is causing this:
>
> > [? 191.654496] Unhandled fault: external abort on non-linefetch
> > (0x1008) at 0xf0460004
>
> And the address 0xf0460004 is certainly funny - that doesn't look like
> it is valid at all, but prehaps it is a bogus report (?)
Notice that the address reported by the Unhandled fault message is a
*virtual* address, not a *physical* address. So you have to look to
what physical address it corresponds to draw some conclusions, I
believe.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2014-04-03 18:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAFJTrDt7OrtE4B52419F2KGbmXeLR9NEcgF6yMTMUBe5vdKwfg@mail.gmail.com>
2014-03-26 17:06 ` Armada XP (mvebu) PCIe memory (BAR/window) re-allocation Thomas Petazzoni
2014-03-26 17:18 ` Jason Gunthorpe
2014-03-31 14:17 ` Matthew Minter
2014-04-01 16:41 ` Jason Gunthorpe
2014-04-03 9:31 ` Matthew Minter
[not found] ` <CAFJTrDu1=Hoa6NS3DaFphMUXgJYunybbdCoGiBVe1qKNQ4s3MA@mail.gmail.com>
2014-04-03 18:23 ` Jason Gunthorpe
2014-04-03 18:24 ` Thomas Petazzoni [this message]
2014-04-07 13:03 ` Matthew Minter
2014-04-07 16:45 ` Jason Gunthorpe
2014-04-08 10:57 ` Matthew Minter
2014-04-08 16:34 ` Jason Gunthorpe
2014-04-03 8:57 Matthew Minter
-- strict thread matches above, loose matches on Subject: below --
2014-03-26 16:54 Matthew Minter
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