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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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