Re: RE_23 hangs in test039 (back-hdb)

[Quanah Gibson-Mount <quanah@stanford.edu>]

--On Monday, January 09, 2006 7:54 AM -0800 Howard Chu <hyc@symas.com> 
wrote:

> Pierangelo Masarati wrote:
> > > > Pierangelo Masarati wrote:
> > > >
> > > > I'm experimenting with a fix now. The problem may be that the same conn
> > > > can be fetched by ldap_back_getconn() multiple times while a bind is in
> > > > progress (since in the initial state, both the incoming session and the
> > > > conn handle are anonymous).
> > > Howard, many thanks for spotting this issue, it was really becoming a
> > > nightmare.  I've ported your fix to back-meta and added some bind
> > > testing to concurrency testers (test007, test035 and test039).  They
> > > seem to run fine, but I seldom see any hang, so I really need to repeat
> > > the tests a lot of times.  If anyone who is often seeing hangs could
> > > step in and stress HEAD a bit... (tests035 and test039).  If it works,
> > > we can likely close ITS#4246, 4247 and 3832.
> >
> > Apart from fixing few small issues in the tester programs, I've
> > repeatedly run test036 & test039 on a few different architectures,
> > including dual CPUs, without any of the relevant issues (neither hangs
> > nor loops).  I wouldn't consider my tests exaustive though, just my own
> > 2c.
> I ran test039 repeatedly for a couple of hours with no hangs on my
> dual-core x86_64 Linux system. I'll try looping the other tests as well.

I've been unable to reproduce the hang on my 4 CPU Solaris 8 system.

--Quanah


--
Quanah Gibson-Mount
Principal Software Developer
ITSS/Shared Services
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html