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SubjectRe: 2.6.25-rc4 rcupreempt.h WARNINGs while suspend/resume
On Thu, Mar 06, 2008 at 07:08:55PM +0800, Dave Young wrote:
> On Thu, Mar 6, 2008 at 11:20 AM, Dave Young <hidave.darkstar@gmail.com> wrote:
> > On Thu, Mar 6, 2008 at 10:28 AM, Paul E. McKenney
> >
> > <paulmck@linux.vnet.ibm.com> wrote:
> > >
> > > On Thu, Mar 06, 2008 at 10:11:26AM +0800, Jike Song wrote:
> > > > On Thu, Mar 6, 2008 at 12:55 AM, Paul E. McKenney
> > > > <paulmck@linux.vnet.ibm.com> wrote:
> > > > > Could you please try applying Karsten Wiese's patch to see if it
> > > > > fixes the WARNINGs? See http://lkml.org/lkml/2008/2/26/386 for
> > > > > the patch.
> > > > >
> > > > > Thanx, Paul
> > > >
> > > > Yes, the WARNING disappears with Karsten's patch applied.
> > > > Thanks.
> >
> > Confirmed
> >
> >
> >
> > >
> > > Good to hear!!! I believe that Karsten's patch is on its way in,
> > > so hopefully that will clear things up.
>
> Hi, paul
>
> My syslog became a 2G size big file yestoday due to the warnings.
> How about change the WARN_ON to WARN_ON_ONCE?

Hello, Dave,

I might be convinced to make this change for 2.6.26, but the condition
that the WARN_ON() is complaining about is quite serious, so I don't
want to take a chance on it getting lost in the noise in the 2.6.25
series.

Seem reasonable?

Better yet, is there some sort of time-limited WARN_ON that kicks out
a message at most once per second or some such? Enough to definitely
be noticed, but not enough to bring the machine to its knees?

Thanx, Paul


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