Re: [PASEMI] Nemo board doesn't recognize any ATA disks with the pci-v5.16 updates

From: "Krzysztof Wilczyński" <kw@linux.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Christian Zigotzky <chzigotzky@xenosoft.de>,
	"bhelgaas@google.com >> Bjorn Helgaas" <bhelgaas@google.com>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Olof Johansson <olof@lixom.net>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	Darren Stevens <darren@stevens-zone.net>,
	"R.T.Dickinson" <rtd2@xtra.co.nz>,
	mad skateman <madskateman@gmail.com>,
	Matthew Leaman <matthew@a-eon.biz>,
	Christian Zigotzky <info@xenosoft.de>,
	Jens Axboe <axboe@kernel.dk>,
	Damien Le Moal <damien.lemoal@opensource.wdc.com>
Subject: Re: [PASEMI] Nemo board doesn't recognize any ATA disks with the pci-v5.16 updates
Date: Tue, 9 Nov 2021 23:40:07 +0100	[thread overview]
Message-ID: <YYr4x1xWfptXRmqt@rocinante> (raw)
In-Reply-To: <20211109165848.GA1155989@bhelgaas>

[+CC Adding Jens and Damien to get their opinion about the problem at hand]

Hello Jens and Damien,

Sorry to bother both of you, but we are having a problem that most
definitely requires someone with an extensive expertise in storage,
as per the quoted message from Christian below:

> > > The Nemo board [1] doesn't recognize any ATA disks with the pci-v5.16
> > > updates [2].
> > >
> > > Error messages:
> > >
> > > ata4.00: gc timeout cmd 0xec
> > > ata4.00: failed to IDENTIFY (I/O error, error_mask=0x4)
> > > ata1.00: gc timeout cmd 0xec
> > > ata1.00: failed to IDENTIFY (I/O error, error_mask=0x4)
> > > ata3.00: gc timeout cmd 0xec
> > > ata3.00: failed to IDENTIFY (I/O error, error_mask=0x4)

The error message is also not very detailed and we aren't really sure what
the issue coming from the PCI sub-system might be causing or leading to
this.

> > >
> > > I was able to revert the new pci-v5.16 updates [2]. After a new compiling,
> > > the kernel recognize all ATA disks correctly.
> > >
> > > Could you please check the pci-v5.16 updates [2]?
> > >
> > > Please find attached the kernel config.
> > >
> > > Thanks,
> > > Christian
> > >
> > > [1] https://en.wikipedia.org/wiki/AmigaOne_X1000
> > > [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4
> 
> Sorry for the breakage, and thank you very much for the report.  Can
> you please collect the complete dmesg logs before and after the
> pci-v5.16 changes and the "sudo lspci -vv" output from before the
> changes?
> 
> You can attach them at https://bugzilla.kernel.org if you don't have
> a better place to put them.
> 
> You could attach the kernel config there, too, since it didn't make it
> to the mailing list (vger may discard them -- see
> http://vger.kernel.org/majordomo-info.html).

Bjorn and I looked at which commits that went with a recent Pull Request
from us might be causing this, but we are a little bit at loss, and were
hoping that you could give us a hand in troubleshooting this.

Thank you in advance!

	Krzysztof