On 30 Sep 2013 14:32, <[1]sf...@users.sourceforge.net> wrote: > > > Pui Yong Ng: > > - I'm unable to write via nfs to an aufs union of zfs branches. The > > file is created, but nothing is written to the file, and nfs reports > > errno -38 (ENOSYS). > > - Writing directly to the aufs union (ie, bypass the nfs mount) works. > > - Reading via the nfs mount seems to work. > > - Writing via nfs to aufs union of EXT4 branches works. > > - Writing via nfs to zfs (ie, without aufs union) works. > > Could you check your kernel syslog? > If my guess is correct, you have messages like this. [] > > These messages are produced by aufs, fs/aufs/f_op.c:au_do_aio():WARN_ON_ONCE(1).
Hi Okajima, You're right. Sorry I didn't notice this pertinent info - I think it is because it was only produced once and I only checked the syslog after various other log entries went in. What do these logs indicate? Thanks, Py References 1. mailto:sf...@users.sourceforge.net
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