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    SubjectRe: 3.2.11: PCI Express card cannot be re-detected withing cca 60sec timeframe
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    On Mon, Apr 16, 2012 at 1:53 PM, Yinghai Lu <yinghai@kernel.org> wrote:
    > On Mon, Apr 16, 2012 at 12:09 PM, Martin Mokrejs
    > <mmokrejs@fold.natur.cuni.cz> wrote:
    >>>>> On Wed, Mar 21, 2012 at 3:46 PM, Martin Mokrejs
    >>>>   I had some Ooopses with 3.4-rc2 but now I have tested 3.4-rc3. Still, linux
    >>>> does NOT realize that I have removed an ExpressCard from the slot. It realizes
    >>>> that only when I pluging the card back again. Actually, this is a case of a
    >>>> NEC chipset base USB3.0 card.
    >>>>
    >>>>  In contrast, kernel DOES recognize that I unplugged a FireWire card from the
    >>>> same slot.
    >>>>
    >>>>  This is a Dell Vostro 3550 laptop. Below is what syslog logged with my comment.
    >>>> Empty lines between the log entries are inserted whe I either inserted or removed
    >>>> a card. Probably a bit more will be in the attached dmesg file.
    >
    > so the interrupt for removal get generated, but pcie_isr() is delayed
    > when another surprise is generated...
    >

    please try to revert
    commit 486b10b9f43500741cd63a878d0ef23cd87fc66d
    Author: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
    Date: Mon Nov 7 20:56:50 2011 +0900

    PCI: pciehp: Handle push button event asynchronously

    Use non-ordered workqueue for attention button events.

    Attention button events on each slot can be handled asynchronously. So
    we should use non-ordered workqueue. This patch also removes ordered
    workqueue in pciehp as a result.

    to see if there is any difference.

    Yinghai
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