Description of problem: mod_auth_pam doesn't close pipe after checking auth information. The result is that there are many, many open filehandles corresponding to these pipes. I noticed this using mod_auth_pam with mod_dav_svn for a subversion repository, and when checking out a large repository (lots of authenticated requests) I would get "Too many open files" in the ssl_error_log - this was due to around a thousand open pipes in the apache process. I started tracking this down and got as far as discovering that the problem was in mod_auth_pam, but then decided to fix my problem by switching to use mod_auth_kerb (since that's what it was really doing on my system anyway). Everything works fine for me now, but mod_auth_pam should be fixed. I think it's a pipe opened up to /sbin/unix_chkpwd that's being left open after that process exits, but I'm not 100% certain of that. Version-Release number of selected component (if applicable): Version 1.1.1-5.fc9 How reproducible: Steps to Reproduce: 1. Set up a subversion repository using mod_dav_svn with AuthPAM 2. Browse the repository (can use browser, cadaver, check out with svn, ...) 3. Notice the number of open file handles left in the apache process Actual results: After browsing a while, hundreds of filehandles will be left open Expected results: filehandles should be closed after use! Additional info:
Upstream should be made aware of this: http://sourceforge.net/projects/pam I don't see any open bugs on this topic.
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