On Fri, Jan 18, 2008 at 01:04:54AM +0000, sebb wrote:
> On 18/01/2008, Oleg Kalnichevski <[EMAIL PROTECTED]> wrote:
> >
> > On Thu, 2008-01-17 at 21:02 +0000, sebb wrote:
> > > On 17/01/2008, Oleg Kalnichevski <[EMAIL PROTECTED]> wrote:
> > > >
> > > > > >
> > > > > > I think I have found the problem spot using my wife's dual-core 
> > > > > > Mac. I
> > > > > > suspect I have never been seeing those problems because my primary 
> > > > > > Linux
> > > > > > system is single-core.
> > > > > >
> > > > >
> > > > > Ah - my laptop is also dual-core.
> > > > >
> > > > > > Thanks for all you help
> > > > >
> > > > > No problem.
> > > >
> > > > Sebastian, Anthony, et al
> > > >
> > > > The problem appears to have been solved. At least I am no longer able to
> > > > reproduce it on my dual-core Mac. Could you please get the latest
> > > > snapshot off the SVN trunk and test whether you can still reproduce the
> > > > problem locally?
> > > >
> > >
> > > I'm still getting an error:
> > >
> > > -------------------------------------------------------------------------------
> > > Test set: org.apache.http.nio.TestAll
> > > -------------------------------------------------------------------------------
> > > Tests run: 97, Failures: 1, Errors: 0, Skipped: 0, Time elapsed:
> > > 11.391 sec <<< FAILURE!
> > > testEndpointUpAndDown(org.apache.http.impl.nio.reactor.TestDefaultListeningIOReactor)
> > >  Time elapsed: 0.094 sec  <<< FAILURE!
> > > junit.framework.AssertionFailedError: expected:<1> but was:<0>
> > >       at junit.framework.Assert.fail(Assert.java:47)
> > >       at junit.framework.Assert.failNotEquals(Assert.java:282)
> > >       at junit.framework.Assert.assertEquals(Assert.java:64)
> > >       at junit.framework.Assert.assertEquals(Assert.java:201)
> > >       at junit.framework.Assert.assertEquals(Assert.java:207)
> > >       at 
> > > org.apache.http.impl.nio.reactor.TestDefaultListeningIOReactor.testEndpointUpAndDown(TestDefaultListeningIOReactor.java:140)
> > >
> >
> > Sebastian
> >
> > I must confess I have run out of ideas. I cannot fully understand why
> > this is happening and am unable to reproduce the problem locally
> > (neither on Mac OS nor Linux). Seems Windows specific. Shall I just
> > disable the test case for now?
> >
> 
> No, I suggest it is left as is.
> 
> I'll see if I can run it on a multi-CPU Unix OS.
> 

Hi Sebastian

Do not bother. After having added more sync blocks I am now getting
occasional lockups. I guess I have take my time and carefully revise all
endpoint management code.


> BTW, how does one check the number of CPUs on Unix?
> 

I am pretty sure it is kernel specific

Oleg

> 
> >
> > > By the way, Findbugs says that the field:
> > >
> > > address in ListenerEndpointImpl (nio)
> > >
> > > is partially synchronised.
> > > This seems to be due the constructor not synching the field.
> > > Perhaps make it volatile and remove the existing synch blocks?
> > >
> >
> > I declared the variable volatile. This should make Findbugs happy. The
> > synch blocks are still needed because they synchronize on this
> > (ListenerEndpointImpl instance), not address. This is needed to notify
> > threads blocked awaiting the completion of ListenerEndpoint requests.
> >
> > > Also SSLIOSession$InternalByteChannel#close() appears to be an
> > > infinite recursive call of itself.
> > >
> >
> > Good catch. Fixed.
> >
> > Thank you once again.
> >
> > Oleg
> >
> >
> > > > Oleg
> > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > > For additional commands, e-mail: [EMAIL PROTECTED]
> > > >
> > > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > For additional commands, e-mail: [EMAIL PROTECTED]
> > >
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
> 
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to