On Fri, 2008-09-12 at 12:01 -0400, Jeff Moyer wrote: > Sorry for the late response. I don't think anyone responded yet, right?
Oh .. that's looks right. This one must have slipped by me. > > 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? Yep, we do have a test kernel. I'll probably need to build it again. But we should get a debug log and confirm it's one of the problems we've addressed. See http://people.redhat.com/jmoyer for details. Ian _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
