Re: 2.6.23-rc3-mm1 - vdso and gettimeofday issues with glibc

From: Valdis . Kletnieks
Date: Sat Sep 08 2007 - 20:24:30 EST


On Thu, 30 Aug 2007 12:27:10 EDT, Chuck Ebbert said:
> On 08/29/2007 07:15 PM, Andrew Morton wrote:
> >>> The issue: vdso and gettimeofday seem to be having a quarrel.
> >> This is also open as a Fedora bug:
> >> https://bugzilla.redhat.com/show_bug.cgi?id=262481
> >>
> >
> > So it's an interaction between the x86_64 vdso patches in Andi's tree and
> > newer glibc, and we don't know which one is getting it wrong yet?
> >
> > If I ever get another -mm out the door (have been without electricity for
> > several days) I'll drop the vdso changes until this is sorted out.
> > -
>
> Problem is present in stock 2.6.23-rc too. Still don't know whether it is
> the new glibc code or the vdso that's causing it, though.

Updating on this issue: Both myself and another person have reported on
the RedHat bugzilla that it's a clocksource issue - if you are using the
hpet clocksource, the time warps, but booting with clocksource=acpi_pm works.

This ring any bells?

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