Hello Vasily, Vasily Tarasov: > 1. Writing in the *middle* of the file fails from inside the container with > ENOSUP error. Writes do work without errors if I overwrite the whole file > from the start. > 2. Underlying file system is XFS. If I use Ext4 it works. > 3. My aufs version is 4.x-rcN-20170522, kernel version is 4.11.3 (see more > details in the end of the e-mail).
- Do you mean open, lseek, and write systemcalls? If so, try strace and find which systemcall returns the error. - Why do you use aufs4.x-rcN? It is not for v4.11 series. Use aufs4.11 for your kernel version. Last but not lease, please provide these ifno. (from aufs README file) ---------------------------------------- When you have any problems or strange behaviour in aufs, please let me know with: - /proc/mounts (instead of the output of mount(8)) - /sys/module/aufs/* - /sys/fs/aufs/* (if you have them) - /debug/aufs/* (if you have them) - linux kernel version if your kernel is not plain, for example modified by distributor, the url where i can download its source is necessary too. - aufs version which was printed at loading the module or booting the system, instead of the date you downloaded. - configuration (define/undefine CONFIG_AUFS_xxx) - kernel configuration or /proc/config.gz (if you have it) - behaviour which you think to be incorrect - actual operation, reproducible one is better - mailto: aufs-users at lists.sourceforge.net ---------------------------------------- J. R. Okajima ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
