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Description of problem:
When TeamWARE Office for Linux 6 (E-mail and groupware software, see
http://www.teamware.com) is shutting down it can't close open sockets
properly. Similar problems occured with RHL9 but they could be solved
by updating the latest kernel and glibc RPMs (2003-11-13
RHSA-2003:325). I noticed that Enterprise Linux got glibc updates at a
same time but it contains different bug fixes. Previous Red Hat
Linuxes (7.3 and 8 tested) don't suffer from this problem.
Here is complete list of updates for RHL9 needed to solve above problem:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Start TeamWARE Office for Linux 6
2. Open connection with client (etc. web)
3. Shutdown TeamWARE Office for Linux 6
4. Wait for 8-10 minutes until TeamWARE Office kills the connections
Actual Results: See above. Also minor database corruption which can
be manually fixed. Not sure if there is possibility to have more
Expected Results: There should be clean shutdown without that extra
wait and error messages.
There are no patches which could be related to this in RHL9 errata
with CVS dates beyond late Sep 2003 at which point RHEL3 glibc
has been forked from upstream CVS. So it most probably most be something
strace/ltrace dumps could help figuring out what's going on.
Is it using NPTL or LinuxThreads?
Created attachment 98776 [details]
strace of process 5916 (tostart)
Created attachment 98777 [details]
strace of processes
5916: tostart (starts and watches required child processes)
5923: toserver (main server process for TeamWARE Office)
5986: tostop (shutdowns all TeamWARE Office processes)
Above you can find straces of three processes that remain active
I don't know if this software uses NPTL or LinuxThreads. All I know is
that they are developing three different versions (Windows, Solaris
and Linux) if that might give you a clue.
I don't know what you expect. We cannot and will not debug 3rd party
binaries, especially not some proprietary code we have no sources of.
It is impossible that there is a problem with sockets which cause
delays which would not be generally present. Much more likely there
is a lockup, either between threads or the processes. We had a few
bugs in the early RHEL3 libpthread. If after updating to the latest
glibc and kernel you still see problems, contact this ISV and ask them
to debug the binary.
I'll keep the bug open for a while. If you have more details (or news
that it works), please post it. If I don't hear anything I'll close
the bug soon.