==> Regarding Re: [autofs] Unable to mount with autofs-4.1.4: aquire_lock: can't lock lock file timed out: /var/lock/autofs; Ian Kent <[EMAIL PROTECTED]> adds:
raven> On Fri, 21 Oct 2005, Rainer Krienke wrote: >> On Mittwoch 19 Oktober 2005 17:55, Ian Kent wrote: > As Jeff has said >> this sort of nesting of mounts is, in general, not > supported by autofs >> and it worked previously because the locking was less > broken in 4.1.3 >> than in 4.1.4 (yes its still broken in 4.1.4). >> > >> > Can this case be done safely? >> > >> > I'm not entirely sure of the answer to this but I've never liked using >> > locking in autofs. I introduced it only to prevent mtab corruption >> during > mount (correct me if you have a different recollection >> Jeff). It happens > during rapid mount activity such as when there as a >> largish number of > entries in the master map (of the order of 50 or >> more). >> > >> > The mtab locking should be done in mount which narrows the scope of >> the > lock enough to allow this case to function as requested. >> > >> >> For me it would be important to learn if this feature will be possible >> in the future or if it is decided that for whatever reason it will not >> be. The former case would be the best thing for me because I would not >> have to find a new solution for mounting home directories and I guess >> other people with a large user base would also welcome it. In the latter >> case I have to think about a alternative way to go for the future. At >> the moment my solution is to use an older version of autofs for suse10.0 >> installations since this older autofs version simply works for me but >> this is of course not an ideal solution. >> >> Any comments? raven> Yes. raven> I was wondering what can be done about this also. raven> All that I can offer is to make a patch to remove the locking from raven> autofs and another for mount (util-linux) to hopefully fix the mtab raven> locking. If you are prepared to carry these non-standard patches we raven> can see how it goes. Somewhat more testing would be required before raven> removing the locking from the distribution. What, exactly, do you think is broken about the mtab locking? I remember spending a few hours with that code, and it looked sane to me. -Jeff _______________________________________________ autofs mailing list [email protected] http://linux.kernel.org/mailman/listinfo/autofs
