Sorry for the late response. I don't think anyone responded yet, right? Michael Coffman <[EMAIL PROTECTED]> writes:
> I have a question about the behaviour of autofs. It seems like it is > very easy to hit a situation where autofs will unmount a file system > and an active process will lose access to a file and fail to read it. > This seems to happen with both direct and indirect mapping. > > Specifics about what I am running: > > autofs-4.1.3-199.3 > kernel - 2.6.9-55.ELsmp > arch - x86_64 > OS - Red Hat Enterprise Linux WS release 4 (Nahant Update 5 > > autofs is configured to use the defaults and has host mapping > enabled. When I run the following simple test: > > date;while [[ -r /net/hostname/test ]]; do :; done; date > > command output: > Fri Jul 11 09:02:46 MDT 2008 > Fri Jul 11 09:03:59 MDT 2008 > command output run 2: > Fri Jul 11 09:11:42 MDT 2008 > Fri Jul 11 09:12:45 MDT 2008 > > As you can see, I lose read access typically shortly after the mount is > supposed to time out. Yeah, this looks like one of the race conditions that Ian's been closing up recently. I think you'll need to test with a newer kernel, where newer means your distribution hasn't even released it yet. Ian may be able to provide a test kernel, I'm not sure. Ian, did you get everything backported to a test tree? Cheers, Jeff _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
