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From "Alexey Varlamov" <alexey.v.varla...@gmail.com>
Subject Re: [drlvm][classloader] classloader.StressLoader hangs on my 2-cpu Linux box. Does anyone else see this problem?
Date Thu, 26 Apr 2007 11:22:49 GMT
FYI, HARMONY-3767 is created.

2007/4/26, Alexey Varlamov <alexey.v.varlamov@gmail.com>:
> Naveen,
>
> I observe the same problem on SLES9@x86_64:
> classloader.StressLoader, gc.FinAlloc and sometimes
> perf.SeveralThreads hang in all 5 exec modes.
> After switching to gc_cc this tests start passing. I'm going to create
> new JIRA after finishing all tests.
>
> --
> Alexey
>
> 2007/4/25, Naveen Neelakantam <neelakan@uiuc.edu>:
> > Has there been progress on this issue?
> >
> > My CC setup is hung running classloader.StressLoader in interpreter
> > (on a 2-cpu RHEL4 box).  It actually has been hung for weeks now, but
> > I only just noticed it.
> >
> > Naveen
> >
> > On Mar 28, 2007, at 7:37 AM, Elena Semukhina wrote:
> >
> > > On 3/27/07, Weldon Washburn <weldonwjw@gmail.com> wrote:
> > >>
> > >> Good work.
> > >>
> > >> The comments on 3495 says this is intermittant hang.  Does it
> > >> happend 10%
> > >> of
> > >> the time?  80%??  How many CPUs does your system have?  Can you
> > >> try it on
> > >> a
> > >> 4-way?
> > >
> > >
> > > The test hangs rarely. Yesterday it hung after ~400 iterations,
> > > today it has
> > > run 850 times and is still running on linux. On 4-way windows it
> > > has hung on
> > > 799th iteration.
> > >
> > > Elena
> > >
> > > On 3/27/07, Elena Semukhina <elena.semukhina@gmail.com> wrote:
> > >> >
> > >> > Weldon,
> > >> >
> > >> > today I saw the hang of classloader.StressLoader but only on linux
> > >> x86_64
> > >> > (OPT) when running it in the loop. The hang is very similar to
> > >> what I
> > >> see
> > >> > for gc.NPE. I reported
> > >> https://issues.apache.org/jira/browse/HARMONY-3495to
> > >> > track the issue.
> > >> >
> > >> > Elena
> > >> >
> > >> >
> > >> > On 3/26/07, Weldon Washburn <weldonwjw@gmail.com> wrote:
> > >> > >
> > >> > > Elena,
> > >> > > Thanks!  It looks like I will keep StressLoader.java on my local
> > >> > excludes
> > >> > > list for now.
> > >> > >
> > >> > >
> > >> > >
> > >> > > On 3/26/07, Elena Semukhina <elena.semukhina@gmail.com>
wrote:
> > >> > > >
> > >> > > > Weldon,
> > >> > > >
> > >> > > > today I ran the test iteratively on my SUSE9 linux x86 2
CPU
> > >> machine
> > >> > in
> > >> > > > default mode and it successfully completed about 2000 times.
> > >> The
> > >> same
> > >> > > > result
> > >> > > > is for linux x86_64.
> > >> > > >
> > >> > > > Thanks,
> > >> > > > Elena
> > >> > > >
> > >> > > > On 3/24/07, Weldon Washburn <weldonwjw@gmail.com>
wrote:
> > >> > > > >
> > >> > > > > I would submit a JIRA if I had a specific bug to report.
 The
> > >> > > situation
> > >> > > > is
> > >> > > > > that the StressLoader test hangs in file LogLoader.java
at
> > >> the
> > >> > > following
> > >> > > > > line:
> > >> > > > >
> > >> > > > > InputStream is = ClassLoader.getSystemResourceAsStream(path);
> > >> > > > >
> > >> > > > > It seems to be aggrevated by all the threads that execute
the
> > >> above
> > >> > > > code.
> > >> > > > >
> > >> > > > > For now, I plan to put this test on my local Linux
> > >> excludes list
> > >> and
> > >> > > go
> > >> > > > > back
> > >> > > > > to committing patches.
> > >> > > > >
> > >> > > > > --
> > >> > > > > Weldon Washburn
> > >> > > > > Intel Enterprise Solutions Software Division
> > >> > > > >
> > >> > > >
> > >> > >
> > >> > >
> > >> > >
> > >> > > --
> > >> > > Weldon Washburn
> > >> > > Intel Enterprise Solutions Software Division
> > >> > >
> > >> >
> > >>
> > >>
> > >>
> > >> --
> > >> Weldon Washburn
> > >> Intel Enterprise Solutions Software Division
> > >>
> >
> >
>

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