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SubjectAutofs race condition ?

Hello,

I have observed what looks like a race in automount (autofs). It happens
when an access is reactivating a mount point that is in the process of
beeing expiring.

Here are the logs in /var/log/messages :

Oct 31 02:14:51 pcodile automount[12272]: expired /alienor/usr.reuse
Oct 31 02:14:52 pcodile automount[12272]: expired /alienor/usr.reuse.debug
Oct 31 02:14:52 pcodile automount[693]: attempting to mount entry /alienor/home
Oct 31 02:14:52 pcodile automount[12272]: expired /alienor/home
Oct 31 02:14:52 pcodile automount[12277]: >> mount: mount point /alienor/home does not exist
Oct 31 02:14:52 pcodile automount[12277]: mount(nfs): nfs: mount failure alienor:/home on /alienor/home
Oct 31 02:14:52 pcodile automount[693]: attempting to mount entry /alienor/home

When that happens, all subsequent accesses to /alienor/home are blocked.
If I ^C the first offending process, the remote partition can finally
be mounted.

Kernel version 2.2.12-20 (coming from RH 6.1). Autofs : autofs-3.1.3-9.

A+,
--
Thierry Danis


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