From: Christoph Hellwig <hch@infradead.org>
To: Bryan Gurney <bgurney@redhat.com>
Cc: Jorge Fernandez Monteagudo <jorgefm@cirsa.com>,
Christoph Hellwig <hch@infradead.org>,
"tj@kernel.org" <tj@kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: SATA errors accessing hidden partitions
Date: Tue, 10 Sep 2019 23:34:16 -0700
Message-ID: <20190911063416.GA25673@infradead.org> (raw)
In-Reply-To: <CAHhmqcTF1wBq037v2dDrKOs8tNhAMzw4_nY_52KY65NvCqWDXw@mail.gmail.com>
On Tue, Sep 10, 2019 at 11:12:36AM -0400, Bryan Gurney wrote:
> Oh, okay. I'm pretty sure that blkid checks regions near the end of a
> device (for example, GPT has what looks like a backup of the "EFI
> PART" boot record near the end of the device). Therefore, it may be
> worthwhile to double-check the size of the partition, in case they're
> not 4 GB, for some strange reason.
Some MD RAID suprblocks also are at the end. Either way I'm pretty
sure this is legitimate probing and not a bug.
> Why is there an "Illegal Request - Unaligned write command" sense
> error from sd, right after the failed ata command "READ FPDMA QUEUED"?
> Is this an expected failure mode for a read to a locked range? (I'm
> not familiar with TCG Opal drives, so unfortunately I don't have
> enough context.)
It could be that we are just having issues translating the errors,
especially given that we don't use sense data in ATA except for ZAC
drives.
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Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AM6PR10MB33991CE19828429C676C0296A1C40@AM6PR10MB3399.EURPRD10.PROD.OUTLOOK.COM>
2019-09-09 6:25 ` Jorge Fernandez Monteagudo
2019-09-10 5:53 ` Christoph Hellwig
2019-09-10 8:03 ` Jorge Fernandez Monteagudo
2019-09-10 11:40 ` Christoph Hellwig
2019-09-10 13:08 ` Bryan Gurney
2019-09-10 14:03 ` Jorge Fernandez Monteagudo
2019-09-10 15:12 ` Bryan Gurney
2019-09-11 6:34 ` Christoph Hellwig [this message]
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