suspend to ram regression in current GIT, bisected - Kernel

This is a discussion on suspend to ram regression in current GIT, bisected - Kernel ; Hi, starting from 2.6.27-rc1, my Laptop (Thinkpad T60) did not return from suspend to ram anymore. When it should resume, the sleep LED went off, power went on, HD LED flashed once, but the display stayed black. It worked perfectly ...

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Thread: suspend to ram regression in current GIT, bisected

  1. suspend to ram regression in current GIT, bisected

    Hi,

    starting from 2.6.27-rc1, my Laptop (Thinkpad T60) did not return from
    suspend to ram anymore.

    When it should resume, the sleep LED went off, power went on, HD LED
    flashed once, but the display stayed black.

    It worked perfectly in 2.6.26, so I bisected it:



    ce6fce4295ba727b36fdc73040e444bd1aae64cd is first bad commit
    commit ce6fce4295ba727b36fdc73040e444bd1aae64cd
    Author: Matthew Wilcox
    Date: Fri Jul 25 15:42:58 2008 -0600

    PCI MSI: Don't disable MSIs if the mask bit isn't supported

    David Vrabel has a device which generates an interrupt storm on the INTx
    pin if we disable MSI interrupts altogether. Masking interrupts is only
    a performance optimisation, so we can ignore the request to mask the
    interrupt.

    Signed-off-by: Matthew Wilcox
    Signed-off-by: Jesse Barnes

    :040000 040000 391a397ab982b7b80c0cb369d8a4999d8f7319fb
    9a318bf27bf9c1bdd371e25754746397426a79ba M drivers



    Reverting it was not a problem and fixed the issue.

    As the screen stays black, I have no idea how to get further details on
    that problem. Which additional information should I provide? Netconsole
    didn't show anything.

    cu
    Dieter

    --
    3rd Law of Computing:
    Anything that can go wr
    fortune: Segmentation violation -- Core dumped


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  2. Re: suspend to ram regression in current GIT, bisected

    Jesse Barnes schrieb:
    > On Thursday, July 31, 2008 12:05 pm Dieter Ries wrote:
    >> Hi,
    >>
    >> starting from 2.6.27-rc1, my Laptop (Thinkpad T60) did not return from
    >> suspend to ram anymore.
    >>
    >> When it should resume, the sleep LED went off, power went on, HD LED
    >> flashed once, but the display stayed black.

    >
    > Can you test the fix in http://bugzilla.kernel.org/show_bug.cgi?id=11178?
    > Hopefully it's a DUP.


    Yes the patch fixed it here. It also fixes IO garbage while shutting
    down here.
    Thanks!

    >
    > Thanks,
    > Jesse
    >


    cu
    Dieter

    --
    3rd Law of Computing:
    Anything that can go wr
    fortune: Segmentation violation -- Core dumped


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    Version: GnuPG v2.0.9 (GNU/Linux)
    Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

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    PNwAoI0WLbD+JvgKhAzBFaJu1Lg0yyOM
    =lmQr
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