Description of problem: > yum update Loaded plugins: dellsysidplugin2, fastestmirror, refresh-packagekit Loading mirror speeds from cached hostfile * fedora: redhat.linux.ee * updates: redhat.linux.ee Setting up Update Process Resolving Dependencies --> Running transaction check : : Running rpm_check_debug Running Transaction Test [hangs indefinitely] Version-Release number of selected component (if applicable): [root@luke rpm]# rpm -q yum yum-3.2.27-3.fc12.noarch How reproducible: Every time - if an NFS mount hangs. Steps to Reproduce: 1. Make sure than an NFS mount hangs, typically by killing the NFS server/service 2. yum update on the NFS client 3. Actual results: yum hangs. Expected results: yum does not hang. Additional info: This has probably been an issue since FC8: http://linux.derkeiler.com/Mailing-Lists/Fedora/2008-01/msg02236.html
This been an issue as long as rpm has existed. Mount points which a given transaction doesn't touch are no longer accessed by rpm in F13 and beyond, so unrelated stale mounts no longer cause hangups. The fix is not suitable for backporting to rpm 4.7.x in F12 though. *** This bug has been marked as a duplicate of bug 547548 ***