From: Juergen Gross <jgross@suse.com>
To: Olaf Hering <olaf@aepfle.de>, xen-devel@lists.xen.org
Subject: Re: dom0 kernel fails to recognize DVD drive on piix controller
Date: Thu, 21 Apr 2016 11:55:22 +0200 [thread overview]
Message-ID: <5718A38A.7060604@suse.com> (raw)
In-Reply-To: <20160421093719.GA3412@aepfle.de>
On 21/04/16 11:37, Olaf Hering wrote:
> On my Fujitsu Esprimo Mobile M9400 laptop the upstream dom0 kernel does
> not find the DVD drive. The DVD drive is found with native kernels and
> also with xenlinux based kernels, like 4.1 based openSUSE Leap.
>
> [ 6.242286] ata_piix 0000:00:1f.1: version 2.13
> [ 6.242625] xen: registering gsi 19 triggering 0 polarity 1
> [ 6.242635] Already setup the GSI :19
> [ 6.250792] ata_piix: probe of 0000:00:1f.1 failed with error -22
>
> After some investigation it turned out that irq_to_desc() returns
> nothing for the piix PCI device, as a result EINVAL is returned.
> The callchain is like:
> piix_init_one
> ata_pci_sff_activate_host (legacy_mode case)
> devm_request_threaded_irq
> irq_to_desc
>
> This happens with 4.4, 4.5 and 4.6 based dom0 kernels.
>
> Any idea whats happening here, where to look further?
You might want to test Stefano's patch trying to fix a similar issue:
http://lists.xen.org/archives/html/xen-devel/2016-04/msg02512.html
Juergen
>
> I'm attaching a collection of logfiles, like dmesg, lspci and the used
> debug patch, along with the used .config for the dom0 kernel.
>
> Thanks,
>
> Olaf
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
>
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next prev parent reply other threads:[~2016-04-21 9:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 9:37 dom0 kernel fails to recognize DVD drive on piix controller Olaf Hering
2016-04-21 9:49 ` Jan Beulich
2016-04-21 9:52 ` Olaf Hering
2016-04-21 10:10 ` Jan Beulich
2016-04-21 10:35 ` Olaf Hering
2016-04-21 10:48 ` Jan Beulich
2016-04-21 9:55 ` Juergen Gross [this message]
2016-04-21 11:00 ` Olaf Hering
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