[OpenAFS] getcwd() error for RHEL 7.4 kernel

[Fabien Wernli]

Hi,

We're experiencing the exact same issue as nd.edu, namely random getcwd()
error messages especially from users having tcsh as their login shell.

I've been trying to reproduce it using pwd loops in different account's home
directory, without success. It's really very random.

Our config:

## OS:
CentOS 7.4 with kernel 3.10.0-693.2.2.el7.x86_64

## OpenAFS RPMs from Scientific Linux dot org
kmod-openafs-1.6-sl-693-1.6.21-274.sl7.693.x86_64
openafs-1.6-sl-module-tools-1.6.20-256.7.x86_64
openafs-1.6-sl-1.6.20-256.7.x86_64
openafs-1.6-sl-client-1.6.20-256.7.x86_64
openafs-1.6-sl-compat-1.6.20-256.7.x86_64
openafs-1.6-sl-krb5-1.6.20-256.7.x86_64
openafs-1.6-sl-module-tools-1.6.20-256.7.x86_64
pam_afs_session-2.6-5.el7.x86_64

Cheers