1 - missing info about /etc/mtab and /proc/mounts mismatch
2 - missing info about possible ioctl() and fcntl() problems on NFS filesystem
4 --- util-linux-2.13-pre7/mount/mount.8.bugs 2006-03-30 21:36:56.000000000 +0200
5 +++ util-linux-2.13-pre7/mount/mount.8 2006-03-30 21:37:35.000000000 +0200
8 In particular, it may well fail if the kernel was compiled with devfs
9 but devfs is not mounted.
11 +It is possible that files
15 +don't match. The first file is based only on the mount command options, but the
16 +content of the second file also depends on the kernel and others settings (e.g.
17 +remote NFS server. In particular case the mount command may reports unreliable
18 +information about a NFS mount point and the /proc/mounts file usually contains
19 +more reliable information.)
21 +Checking files on NFS filesystem referenced by file descriptors (i.e. the
25 +families of functions) may lead to inconsistent result due to the lack of
26 +consistency check in kernel even if noac is used.