From: Stephen Hemminger <shemminger@linux-foundation.org>
To: "Oliver Pinter (Pintér Olivér)" <oliver.pntr@gmail.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
oliver.pntr@gmail.com
Subject: Re: [BUG] skge 0000:02:05: read data parity error
Date: Mon, 14 Jan 2008 12:52:00 -0800 [thread overview]
Message-ID: <20080114125200.28cb4c69@deepthought> (raw)
In-Reply-To: <6101e8c40801141157j1ce7d3f0if2e4eb2344b6c844@mail.gmail.com>
On Mon, 14 Jan 2008 20:57:49 +0100
"Oliver Pinter (Pintér Olivér)" <oliver.pntr@gmail.com> wrote:
> Hi All!
>
> It is fully reproductable under 2.6.22.15, 2.6.23.13 (all tainted and
> not tainted [4 different kernel] ) and 2 different PC:
>
> [BUG] skge 0000:02:05: read data parity error
> [BUG] skge 0000:02:05: read data parity error
>
> steps:
> 1. login as root
> 2. start mc
> 3. cd /sys/bus/pci/drivers/skge/0000:02:05.0
> 4. press F3 (mcview) on resource0
> 5. the system hang up, without panic or bug ... only this message
> printed 2x: [BUG] skge 0000:02:05: read data parity error
>
This is not a bug.
The hardware has some debug registers that if accessed cause a read
back to the host. Since this can point anywhere, it will cause errors
or system hang.
The point is don't do it.
--
Stephen Hemminger <stephen.hemminger@vyatta.com>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2008-01-14 20:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-14 19:57 [BUG] skge 0000:02:05: read data parity error Oliver Pinter (Pintér Olivér)
2008-01-14 20:52 ` Stephen Hemminger [this message]
2008-01-14 21:01 ` Adrian Bunk
2008-01-14 21:30 ` Greg KH
2008-01-14 21:31 ` Oliver Pinter (Pintér Olivér)
2008-01-14 21:34 ` Adrian Bunk
2008-01-14 21:41 ` Oliver Pinter (Pintér Olivér)
2008-01-14 21:48 ` Greg KH
2008-01-14 21:52 ` Adrian Bunk
2008-01-14 21:58 ` Oliver Pinter (Pintér Olivér)
2008-01-14 22:37 ` Stephen Hemminger
2008-01-14 21:38 ` Greg KH
2008-01-14 21:44 ` Oliver Pinter (Pintér Olivér)
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=20080114125200.28cb4c69@deepthought \
--to=shemminger@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=oliver.pntr@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).