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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140403202455.599d1c6b@skate \
--to=thomas.petazzoni@free-electrons.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.