Messages in this thread | | | Date | Thu, 19 Feb 2009 21:17:24 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended) |
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On Thu, 19 Feb 2009, Benjamin Herrenschmidt wrote:
> On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote: > > > Just for laughs I slapped together the following, which seems to do > > the > > > job, although not especially tidily. > > > > And it doesn't even do the job. Judging by this new trace, submitting > > input events from the via-pmu resume function is still too early. > > > What's up Thomas ? We can't call gettimeofday() from a sysdev > suspend/resume ? That's a little bit too harsh no ?
Well, harsh or not is not the question here.
Fact is that you call gettimeofday() _before_ the timekeeping code has resumed.
That's a simple ordering problem. timekeeping is in the sysdev class as well and it's not the only sysdev which has explicit ordering requirements.
Thanks,
tglx
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