Hello, after using aufs for a while, I've ran into two extremely annoying issues/bugs: 1. There is a folder which I seem can't rename into a specific name: $ mv 4.0 XXX <- OK $ mv XXX 5.0 <- OK $ mv 5.0 6.0 <- BAD mv: cannot move `4.0/schemes/Tux.ksf' to `6.0/schemes/Tux.ksf': Input/output error mv: cannot move `4.0/samples/javascript_sample.js' to `6.0/samples/javascript_sample.js': Input/output error mv: cannot move `4.0/samples/perl_tutorials' to `6.0/samples/perl_tutorials': Input/output error mv: cannot move `4.0/samples/ruby_sample.rb' to `6.0/samples/ruby_sample.rb': Input/output error mv: cannot move `4.0/samples/html_sample.html' to `6.0/samples/html_sample.html': Input/output error ... ... ... mv: cannot move `4.0/XRE/extensions.rdf' to `6.0/XRE/extensions.rdf': Input/output error mv: cannot move `4.0/XRE/XPC.mfasl' to `6.0/XRE/XPC.mfasl': Input/output error mv: cannot move `4.0/XRE/prefs.js' to `6.0/XRE/prefs.js': Input/output error
I can't move the folder both on aufs, and on the "original branch" (while aufs is mounted). I can copy the folder with no errors, but even after it gets removed, i still am incapable of renaming original folder to "6.0" without causing any errors: $ cp -r 5.0 6.0 <- OK $ rm -rf 6.0 <- OK $ mv 5.0 6.0 <- same input/output errors It seems that aufs somehow remembers that specific location. With each error dmesg reports: [ 481.729564] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729612] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729662] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729711] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729774] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729822] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. [ 481.729871] aufs au_lkup_neg:326:mv[2552]: I/O Error, b4 6.0 should be negative. It's not a huge problem, but I don't like the idea that it persists even after reboot, so it would be nice if I could fix that somehow. Another issue is with VMware Workstation. I have serval branches: In br0 I currently keep all /usr /etc /tmp folders except /home In br8 I keep /home, and it's the only branch which has /home on it. Both br0 and br8 are rw (and /sys/fs/aufs/si_*/* confirms that). So, logically, if any file gets modified or created within /home directory, should stay in br8. And that's the case with all programs I've tested so far except with VMware Workstation. When I start any virtual machine, it creates lock folders and log files in br0! Because of this, /home folder gets created in br0 and all new files which are created in /home/user go to br0, which isn't what I want. I tried that with several mount policies, always the same result. I even reloaded all the vmware's modules, restarted all the services in case vmware somehow gets "bound" to the first branch, because after mounting aufs I append several branches manually with a script, in which /home folder with VMs resides. It looks like a bug. To undo the "damage", i rm -rf /home in br0, but then hell breaks loose. Most of running programs start malfunctioning, and when I try to "cd /home", I get an error "stale NFS handle". I'm not sure if that's what should happen, but removing folders from aufs's branches while the system is mounted would be nice. Is that possible without running into "stale NFS handle" problem? I guess that's it for now. Good day, Audrius ------------------------------------------------------------------------------ Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d
