On 03/31/2017 06:20 PM, Pádraig Brady wrote: > On 31/03/17 08:26, Kevin Bedard wrote: >> Hello. When I execute a ‘tail -f ‘ on my product’s log file (text based >> file), I get the error below, however, the file contents is still displayed >> and updated in real time. >> >> >> >> *tail: unrecognized file system type 0xf15f083d for 'aerolink.log'. please >> report this to [email protected] <[email protected]>. reverting to >> polling* > > What file system is that file on, > and is it a networked file system?
It seems that this was a UNIONFS filesystem ... http://unionfs.filesystems.org/ http://copilotco.com/mail-archives//linux-kernel.2008/msg45027.html ... which never made it into the linux kernel. I'm not sure we should support that. Newer tail(1) >v8.24 wouldn't output the warning any longer anyway, so silently falling back to polling seems to be sufficient for UNIONFS. Have a nice day, Berny
