+++ This bug was initially created as a clone of Bug #161298 +++ From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050319 Description of problem: After updating autofs via ssh, when you log out of ssh the channel is keps open and the session will not dissconnect (requires a ~&) Version-Release number of selected component (if applicable): autofs-4.1.3-130 How reproducible: Always Steps to Reproduce: 1. ssh into machine using autofs 2. rpm -U http://some/path/autofs-4.1.3-130.i386.rpm 3. exit Actual Results: ssh session does not exit. Additional info: This is a long standing issue. -- Additional comment from jmoyer on 2005-06-27 15:35 EST -- I'll try to reproduce this. Note that I do this sort of thing all of the time, and have not experienced this issue. -- Additional comment from jn.edu.au on 2005-11-14 00:22 EST -- This is still a problem when installing U6. After the update, the automount daemon is running with a terminal instead of as a daemon. # ps ax | grep automount 2615 ? S 1:08 /usr/sbin/automount --timeout=5 /misc program /root/miscmount.sh # rpm -U autofs-4.1.3-154.i386.rpm # ps ax | grep automount 1804 pts/0 S 0:00 /usr/sbin/automount --timeout=5 /misc program /root/miscmount.sh -- Additional comment from jn.edu.au on 2006-04-11 23:49 EST -- Still a problem in U7 ps -ef show that automount running with a controlling terminal root 23119 1 0 13:48 pts/1 00:00:00 /usr/sbin/automount --timeout=60 /home/students/accounts program /usr After logging out from ssh I have to use ~& to background the connection. Logging back in shows that automount is now running without a terminal root 23119 1 0 13:48 ? 00:00:00 /usr/sbin/automount --timeout=60 /home/students/accounts program /usr -- Additional comment from jmoyer on 2006-05-08 18:45 EST -- It looks to me like the become_daemon code in autofs should call setsid() to clear the controlling tty. Ian, and particular reason this isn't done? -- Additional comment from jmoyer on 2006-05-08 19:53 EST -- Ian, nevermind the above. It seems we are keeping some file descriptors open. I know that my daemon-exit-wait patch left one open, I'm pouring through the rest of the code to find other culprits. -- Additional comment from ikent on 2006-05-09 00:05 EST -- (In reply to comment #5) > Ian, nevermind the above. It seems we are keeping some file descriptors open. > I know that my daemon-exit-wait patch left one open, I'm pouring through the > rest of the code to find other culprits. There's patch around for 4.1.4 for that. I didn't notice until it was reported by the Debian folks. Many moons ago we would do a double fork to do this but there's only a single fork in become_daemon. I'll have a look around for the patch. Ian -- Additional comment from ikent on 2006-05-09 00:16 EST -- Created an attachment (id=128769) Change setpgrp to setsid in become_daemon function We should do this as well as hunt for the open file handles. The become_daemon function is not incorrect. -- Additional comment from ikent on 2006-05-09 00:16 EST -- Created an attachment (id=128770) Change setpgrp to setsid in become_daemon function We should do this as well as hunt for the open file handles. The become_daemon function is incorrect. -- Additional comment from jmoyer on 2006-05-09 14:22 EST -- OK, it turns out that this only happens from upgrading autofs, which points to RPM. RPM doesn't seem to set the close-on-exec bit for the file descriptors it opens, and so those get inherited by automount. I've modified the daemon to close fd's 0-255, and this appears to fix the problem. Note that this is the only change required, though I'll likely include the setsid patch as well. I'll follow up with a patch in a moment. The RPM bug I filed is bz #191196. -- Additional comment from jmoyer on 2006-05-09 14:23 EST -- Created an attachment (id=128804) Close fd's 0-255 in become_daemon -- Additional comment from jmoyer on 2006-05-09 14:34 EST -- Easily reproducable and the fix is straightforward.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
A fix for this issue was built into autofs package version 4.1.3-188.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0274.html