file descriptor leak in 5.2-RC

[Kris Kennaway]

On Fri, Dec 19, 2003 at 11:30:40AM +0100, Michal Mertl wrote:
> On Thu, 18 Dec 2003, Jonathan Lennox wrote:
> > Michal Mertl writes:
> > > For several weeks now I see my -current (now RELENG_5_2 to help test the
> > > release) machine seems to be leaking file descriptors. After some time all
> > > files (up to kern.maxfiles) are consumed.
> >
> > Do you have any statically-linked programs that use pthreads?  There's a FD
> > leak in gethostbyname(3) in multithreaded programs (actually, in the uthread
> > wrapper for kevent(2), but gethostbyname(3) is the most common reason you'd
> > see it) which was fixed in -CURRENT for programs linked with libc_r.so, but
> > not for those linked with libc_r.a.
> 
> I'm afraid this is different. When your program terminates the descriptors
> are freed. You found a bug but it's not that serious as what I'm seeing -
> even when I go to single-user I see large openfiles.

Someone else already asked you to check fstat to see what the open
files are, and suggested it's probably the dynamic linker
(i.e. expected behaviour).  What is the case?

Kris
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