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    SubjectRe: [PATCH 1/2] ACPI / scan: Make namespace scanning and trimming mutually exclusive
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    On Saturday, February 02, 2013 08:28:01 PM Steven Newbury wrote:
    > On Sat, 2 Feb 2013, 20:18:28 GMT, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    >
    > > On Saturday, February 02, 2013 11:58:41 AM Steven Newbury wrote:
    > > > On Sat, 2013-01-26 at 15:19 -0800, Yinghai Lu wrote:
    > > > > On Sat, Jan 26, 2013 at 2:41 PM, Rafael J. Wysocki <rjw@sisk.pl>
    > > > > wrote:
    > > > > > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    > > > > >
    > > > > > There is no guarantee that acpi_bus_scan() and acpi_bus_trim() will
    > > > > > not be run in parallel for the same scope of the ACPI namespace,
    > > > > > which may lead to a great deal of confusion, so introduce a new
    > > > > > mutex to prevent that from happening.
    > > > > >
    > > > > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    > > > >
    > > > > Acked-by: Yinghai Lu <yinghai@kernel.org>
    > > > >
    > > > > Steven,
    > > > >
    > > > > Can you apply this one to for-pci-res-alloc to check if racing with
    > > > > docking hotplug/eject
    > > > > still happen?
    > > > > or wait one or two days after i rebase that branch.
    > > >
    > > > Tried merging with linux-pm/bleeding-edge, same behaviour:
    > > >
    > > > [ 3589.013578] ACPI: \_SB_.PCI0.PCIE.GDCK: undocking
    > > > [ 3589.585356] vgaarb: device changed decodes:
    > > > PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=none [
    > > > 3589.585422] ACPI: Delete PCI Interrupt Routing Table for 0000:04 [
    > > > 3589.585426] pci 0000:03:08.0: Oops, 'acpi_handle' corrupt [
    > > > 3589.585446] pci_bus 0000:04: busn_res: [bus 04] is released
    > > >
    > > > 03:08.0 PCI bridge: PLX Technology, Inc. PEX8112 x1 Lane PCI
    > > > Express-to-PCI Bridge (rev aa)
    > > > 04:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI
    > > > Manhattan [Mobility Radeon HD 5430 Series]
    > > > 04:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Cedar HDMI
    > > > Audio [Radeon HD 5400/6300 Series]
    > >
    > > That's because of a bug in the dock code I believe.
    > >
    > > If you're willing to test patches, I can try to cook up something to
    > > debug/fix this.
    > Sure, I'm always willing to test patches.

    Can you please test this one in addition to the $subject one:

    https://patchwork.kernel.org/patch/2068621/

    and see if that helps?

    Rafael


    --
    I speak only for myself.
    Rafael J. Wysocki, Intel Open Source Technology Center.


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