[BUG] Automounter (autofs) segmentation faults when attempting to cd to a /net/nfs-server directory

Automounter (autofs) segmentation faults when attempting to cd to a /net/nfs-server directory

Issue:

The automounter (autofs) hangs when attempting to cd to a /net/nfs-server directory. The resulting hang produces a segmentation fault and a core file is generated.

Environment:

• Red Hat Enterprise Linux 6.3
• autofs-5.0.5-64.el6

Resolution:

Downgrading to autofs-5.0.5-39.el6 can be used as a workaround for this problem. This issue is being tracked via Bugzilla.

Root Cause:

This issue is directly correlated with the amount of exports being shared out by the NFS server. If the NFS server is sharing a large amount of export directories, autofs cannot handle the resulting data flow in /net which results in a segmentation fault.