From: Steven Scholz <steven.scholz@imc-berlin.de>
To: Alan <alan@lxorguk.ukuu.org.uk>
Cc: linux-ide@vger.kernel.org
Subject: Re: HPA and failed opcode was: 0x37 ?
Date: Tue, 30 Jan 2007 18:19:29 +0100 [thread overview]
Message-ID: <45BF7E21.7010605@imc-berlin.de> (raw)
In-Reply-To: <20070130172629.70ad628d@localhost.localdomain>
Alan wrote:
>>> Is your IDE controller LBA48 capable ?
>> Well TBH I have no contoller. As I said I am using an embedded ARM board.
>> The HDD is connected via a FPGA. The internal HDD registers simply memory
>> mapped. Works fine. Usually. By now we seem to have trouble with that
>> Seagate drive...
>
> The reason I ask is that the stuff which is going wrong is the stuff
> which requires two fetches from the drive registers. Could that be a
> caching bug (eg caching it, prefetching and thus reading a register too
> many times etc) - it seems more likely than the drive given that nobody
> else is seeing anything like this.
Hmm. Don't think so. Since the use of ioremap() I think the MMU treats the
area as none-cacheable, right?
Steven
next prev parent reply other threads:[~2007-01-30 17:19 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-30 14:02 HPA and failed opcode was: 0x37 ? Steven Scholz
2007-01-30 14:07 ` Steven Scholz
2007-01-30 15:44 ` Eric D. Mudama
2007-01-30 15:50 ` Eric D. Mudama
2007-01-30 15:54 ` Steven Scholz
2007-01-30 15:53 ` Steven Scholz
2007-01-30 16:44 ` Alan
2007-01-30 16:46 ` Steven Scholz
2007-01-30 17:26 ` Alan
2007-01-30 17:19 ` Steven Scholz [this message]
2007-01-30 18:07 ` Alan
2007-01-30 18:04 ` Steven Scholz
2007-01-30 18:23 ` Eric D. Mudama
2007-01-30 18:32 ` Sergei Shtylyov
2007-01-30 19:56 ` Eric D. Mudama
2007-01-30 20:01 ` Eric D. Mudama
2007-01-31 8:29 ` Steven Scholz
2007-01-31 12:54 ` Sergei Shtylyov
2007-01-31 13:08 ` Steven Scholz
2007-01-31 13:12 ` Sergei Shtylyov
2007-01-31 13:38 ` Steven Scholz
2007-01-31 9:51 ` Steven Scholz
2007-01-31 12:50 ` Sergei Shtylyov
2007-01-31 13:04 ` Steven Scholz
2007-01-31 13:33 ` Alan
2007-01-31 13:26 ` Steven Scholz
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