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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Jan Beulich <JBeulich@suse.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: MSI error when reloading iwlagn module
Date: Tue, 27 Sep 2011 12:57:26 -0700	[thread overview]
Message-ID: <4E822AA6.4010605@goop.org> (raw)

Hi,

With a fairly current kernel + xen, I'm seeing this if I rmmod iwlagn
and try to reload it:

[51230.646678] Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[51230.646685] Copyright(c) 2003-2011 Intel Corporation
[51230.646760] xen: registering gsi 17 triggering 0 polarity 1
[51230.646773] xen_map_pirq_gsi: returning irq 17 for gsi 17
[51230.646777] xen: --> pirq=17 -> irq=17 (gsi=17)
[51230.646781] Already setup the GSI :17
[51230.646789] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[51230.646814] iwlagn 0000:03:00.0: setting latency timer to 64
[51230.646935] iwlagn 0000:03:00.0: pci_resource_len = 0x00002000
[51230.646941] iwlagn 0000:03:00.0: pci_resource_base = ffffc9000671c000
[51230.646945] iwlagn 0000:03:00.0: HW Revision ID = 0x35
[51230.647075] iwlagn 0000:03:00.0: xen map irq failed -22 for 32752 domain
[51230.647081] iwlagn 0000:03:00.0: pci_enable_msi failed
[51230.647113] iwlagn 0000:03:00.0: PCI INT A disabled
[51230.647126] iwlagn: probe of 0000:03:00.0 failed with error -22

with this on the Xen console

(XEN) physdev.c:139: dom0: can't create irq for msi!


I'm running Xen as of a422e2a4451e, which your MSI changes in them,
which I suspect of having caused a regression (since I don't remember
having problems reloading msi-using drivers before).

Thanks,
    J

             reply	other threads:[~2011-09-27 19:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-27 19:57 Jeremy Fitzhardinge [this message]
2011-09-28  8:33 ` MSI error when reloading iwlagn module Jan Beulich
2011-09-28 10:17   ` George Dunlap
2011-11-07 10:08     ` Jan Beulich
2011-11-09 19:09       ` Jeremy Fitzhardinge
2011-09-28 10:27   ` Jan Beulich
2011-09-28 11:07     ` George Dunlap
2011-09-28 16:50       ` Jeremy Fitzhardinge

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