kern/107109: [nfs] Netbeans/Eclipse/Java provoke deadlocks when used with NFS

[Alfred Perlstein]

* Joerg Lehners <Joerg.Lehners at Informatik.Uni-Oldenburg.DE> [071116 07:00] wrote:
> On Fri, 16 Nov 2007, kmacy at FreeBSD.org wrote:
> >Date: Fri, 16 Nov 2007 02:23:07 GMT
> >From: kmacy at FreeBSD.org
> >To: Joerg.Lehners at Informatik.Uni-Oldenburg.DE, kmacy at FreeBSD.org,
> >    freebsd-bugs at FreeBSD.org, alfred at FreeBSD.org
> >Subject: Re: kern/107109: [nfs] Netbeans/Eclipse/Java provoke deadlocks 
> >when
> >    used with NFS
> >
> >Synopsis: [nfs] Netbeans/Eclipse/Java provoke deadlocks when used with NFS
> >
> >[...]
> 
> I just tested against
> 
> FreeBSD testido2 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #0: Fri Nov 16 
> 14:54:31 MET 2007     root at testido2:/usr/src/sys/i386/compile/JL-TESTIDO2  
> i386
> 
> and was NOT able to reproduce the problem. Whereas with
> 
> FreeBSD tende 6.2-STABLE FreeBSD 6.2-STABLE #0: Mon Jun 11 16:30:26 MEST 
> 2007     root at bodensee:/usr/src/sys/i386/compile/JL-FS-neu-SCSI  i386
> 
> the deadlock showed up after milliseconds.
> So some of the numerous changes made the problem go way.
> 
> Do you need a more specific description of the change? It might
> take some time to narrow it down.

This is the change Julian and I worked out for kse where
we no longer call "thread_single" during fork(2) of threaded
processes.

-- 
- Alfred Perlstein