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    SubjectRe: clocksource mutex deadlock, cat current_clocksource (2.6.33-rc6/7)
    On Tue, Feb 09, 2010 at 11:02:02AM +0100, Thomas Gleixner wrote:
    > Just verified, that there is no timekeeping related patch after
    > 2.6.33-rc4 except the kgdb lockup prevention patch, which is
    > not touching any code which is relevant at boot time.
    >
    > So bisecting between rc4 and now is probably the best thing to do.

    Despairing is the best thing to do methinks.

    -rc5 gcc 4.4 new .config: acpi_pm lockup
    -rc4 gcc 4.4 new .config: reboot (directly after unpacking kernel)
    -rc4 gcc 4.4 old (trusted) .config: reboot!! (dito)
    -rc4 gcc 4.3 old (trusted) .config: reboot!!! (dito)

    I'm currently zeroing in on the libgcc1 upgrade that I did on
    2010-02-04 (which also made gcc-4.4 the default system compiler).
    I don't have any friggin' idea what else could have caused this.

    gcc 4.3 has been configured using CC=gcc-4.3 HOSTCC=gcc-4.3
    , but as said, this also failed.

    Andreas Mohr


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