Date: Thu, 1 Aug 1996 20:09:33 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-current@FreeBSD.org (FreeBSD-current users) Cc: tony@fit.qut.edu.au Subject: Re: NFS Diskless Dispare... Message-ID: <199608011809.UAA19845@uriah.heep.sax.de> In-Reply-To: <Pine.BSI.3.95.960801114819.14900E-100000@minnow.render.com> from Doug Rabson at "Aug 1, 96 11:54:03 am"
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As Doug Rabson wrote: > > > 2. Files permissions are read incorrectly. Files that should be able to > > > be executed are giving "permission denied" messages. > > Probably more NFS bogosity. > > I think for diskless root filesystems, you must export the fs with > -root=0, otherwise lots of stuff will break. I don't think that's Tony's problem. Note that he writes that everything works well if only a few machines boot diskless (i can basically confirm this, but my single scratch box is about all i have to test). > > > 3. Pageing in of binaries cause the system to panic. Vnode_pager does > > > not seem to like it when it can't page in executables, even when the > > > > See #2. :-) > > Probably paging from a file which root can't access (see above). No, rather that the normal NFS retries are not in effect (or something like this) when the pagein is requested by the vnode pager (as opposed to a userland program). I have noticed some similar bogosity once with Data General DG/UX, but for write access, and they have never been able to resolve this. (mmap()ed files were only written correctly in 1 out of 10 attempts, and SIGBUS'ed the other 9 processes. Alas, the ELF ld(1) mmap'ed its output file.) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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