sf...@users.sourceforge.net: > I have tried but could not reproduce the problem. > - got full trusty kernel source, built it with the default configuration > (as MJ posted) --> no disk space > - disabled unnecessary drivers, built again --> succeeded > - rebooted with the new kernel, tried, but could not reproduce the > problem > > Now I am preparing a parition to install full ubuntu trusty by > debootstrap. I am going to make btrfs as its root partition. Do I need > some options for btrfs? Is it ok to mkfs.btrfs without any options > simply?
Totally I cannot reproduce the problem. I have to give up it on my side. Linux jrofr 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:22:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux /dev/sda15 / btrfs rw,relatime,space_cache 0 0 + sudo mount -t aufs -o br=/rw:/ro none /u + cd /u + sudo touch fileA + sudo mkdir -p dir1/dir2/dir3 + sudo rm -fr dir1 + ls fileA Anyone who can reproduce the problem, could you try these? - use ubuntu trusty - use btrfs and aufs # mkdir rw ro u # sudo mount -t aufs -o br=/rw:/ro none /u # cd /u # sudo touch fileA # sudo mkdir -p dir1/dir2 # sudo rm -fr dir1 # ls and see ESTALE happens or not. If you got ESTALE, then I'd ask you to - check the kernel log - enable CONFIG_AUFS_DEBUG and rebuild aufs module which eats lots of disk spaces, about 10GB, and takes a long time. - make sure that the module is correctly installed by "ls -l $(modinfo -F filename aufs)" and see the timestamp. - make sure that you can receive the "kern.debug" logs - repeat the same commands, cd + mkdir + rm + ls. But this time, just before rm, run "echo 1 > /sys/module/aufs/parameters/debug". and just after ls, run "echo 0 > /sys/module/aufs/parameters/debug". Setting 1 enables aufs debugging feature and produces many kernel debug log. To stop the debug log, set 0 to /sys/module/aufs/parameters/debug. - show me the debug log. Maybe I will ask you to apply a new debug patch and repeat these steps several time. Anyone, please cooperate this test. J. R. Okajima ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/
