Re: open - resource temporarily unavailable

[Andrey <thatisme@inp.nsk.su>]

 <tomas <at> tuxteam.de> writes:

> 
> 
> On Fri, Jun 17, 2016 at 09:24:37AM +0000, Andrey wrote:
> > 
> > Sven Joachim <svenjoac <at> gmx.de> writes:
> > 
> > > 
> > > On 2016-06-16 21:46 +0600, Andrew P. Cherepenko wrote:
> > > 
> > > > Hello list,
> > > >   'open()' for creating file sometimes returns an error:
> > > >     couldn't open "myfile.txt": resource temporarily unavailable
> > > >     either in background process or interactively (ex: in Emacs when
> > > > trying to save a file).
> > > 
> > > Are you sure that it's opening the file which fails in that way, and not
> > > writing to it?
> > 
> > Yes. I am pretty sure.
> 
> If the problem is somehow repeatable, you might try to run your
> program under strace to actually pinpoint the system call setting
> EAGAIN (perhaps you've already done that, but I couldn't imply
> that from your post).
>

It happens very rare and rather unpredictable 
sometimes when a lot of files are created
and sometimes without such obvious signs.

> Other things to check: does that happen on any files? On a
> specific file system? If yes: how is that one mounted?
> 

It happens to any file on any ext4 partition which are locally mounted.

Is there a way to find out at least which part of the system is responsible
for 'resource temporarily unavailable'.


All the best,
  Andrey