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From: Jarkko Lavinen <jlavi@iki.fi>
To: linux-kernel@vger.kernel.org
Subject: i82875p_edac: BAR 0 collision
Date: Fri, 7 Nov 2008 13:43:55 +0200	[thread overview]
Message-ID: <20081107114355.GA31730@piipiip.net> (raw)

When I try to load i82875p_edac module on ASUS P4C800 Deluxe in 2.6.26
or 2.6.27 it fails due to BAR 0 collision. On 2.6.25 the
i82875p_edac works just fine.

Should i82875p_setup_overfl_dev() do some additional work to fix the
missing resource of the hidden overflow device?

When I try load i82875p_edac module on 2.6.27 I get

  # modprobe i82875p_edac
  FATAL: Error inserting i82875p_edac
  (/lib/modules/2.6.27.4/kernel/drivers/edac/i82875p_edac.ko): No such device

And dmesg shows (from 2.6.27.4):

  EDAC MC: Ver: 2.1.0 Oct 30 2008
  EDAC DEBUG: edac_pci_dev_parity_clear()
  ...
  EDAC DEBUG: edac_pci_dev_parity_clear()
  EDAC DEBUG: edac_sysfs_setup_mc_kset()
  EDAC DEBUG: edac_sysfs_setup_mc_kset() Registered '.../edac/mc' kobject
  EDAC DEBUG: i82875p_init_one()
  EDAC i82875p: i82875p init one
  EDAC DEBUG: i82875p_probe1()
  PCI: 0000:00:06.0 reg 10 32bit mmio: [fecf0000, fecf0fff]
  pci 0000:00:06.0: device not available because of BAR 0 [0xfecf0000-0xfecf0fff] collisions
  EDAC i82875p: i82875p_setup_overfl_dev(): Failed to enable overflow device
  EDAC DEBUG: 875p init fail

On 2.6.25.19 loading i82875p_edac works just fine and dmesg shows:

  EDAC MC: Ver: 2.1.0 Nov  4 2008
  EDAC i82875p: i82875p init one
  EDAC MC0: Giving out device to 'i82875p_edac' 'i82875p': DEV 0000:00:00.0
  EDAC PCI0: Giving out device to module 'i82875p_edac' controller 'EDAC PCI controller': DEV '0000:00:00.0' (POLLED)

Cheers
Jarkko Lavinen

             reply	other threads:[~2008-11-07 12:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-07 11:43 Jarkko Lavinen [this message]
2008-11-11  8:01 ` i82875p_edac: BAR 0 collision Andrew Morton
2008-11-12 21:06   ` Jarkko Lavinen
2008-11-18 21:57   ` Jarkko Lavinen
2008-11-23 20:44   ` Jarkko Lavinen
2008-12-16 19:39     ` Jesse Barnes

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