Date: Fri, 3 May 2013 08:22:26 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: Hartmut Brandt <hartmut.brandt@dlr.de> Cc: current@freebsd.org Subject: Re: files disappearing from ls on NFS Message-ID: <1685137855.94411.1367583746151.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <alpine.BSF.2.00.1305021801110.95088@KNOP-BEAGLE.kn.op.dlr.de>
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Hartmut Brandt wrote: > Hi, > > I've updated one of my -current machines this week (previous update > was in > february). Now I see a strange effect (it seems only on NFS mounts): > ls or > even echo * will list only some files (strange enough the first files > from > the normal, alphabetically ordered list). If I change something in the > directory (delete a file or create a new one) for some time the > complete > listing will appear but after sime time (seconds to a minute or so) > again > only part of the files is listed. > > A ktrace on ls /usr/src/lib/libc/gen shows that getdirentries is > called > only once (returning 4096). For a full listing getdirentries is called > 5 > times with the last returning 0. > > I can still open files that are not listed if I know their name, > though. > > The NFS server is a Windows 2008 server with an OpenText NFS Server > which > works without problems to all the other FreeBSD machines. > > So what could that be? > Someone else reported missing files returned via "ls" recently, when they used a small readdirsize (below 8K). I haven't yet had a change to try and reproduce it or do any snooping around. There haven't been any recent changes to readdir in the NFS client, except a trivial one that adds a check for vnode type being VDIR, so I don't see that it can be a recent NFS change. If you can increase the readdirsize, try that to see if it avoids the problem. "nfsstat -m" shows you what the mount options end up being after doing the mount. The server might be limiting the readdirsize to 4K, so you should check, even if you specify a large value for the mount. rick > Regards, > harti > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to > "freebsd-current-unsubscribe@freebsd.org"
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