Re: inotify_add_watch() returning ENOSPC in 2.6.24 [watchdescriptor leak?]

From: Amy Griffis
Date: Wed Feb 06 2008 - 22:04:34 EST


Clem Taylor wrote: [Wed Feb 06 2008, 02:40:58PM EST]
> > Good bug report, thanks. That code was significantly altered in June 2006
> > and perhaps something broke.
>
> I also tested on a 2.6.20 x86 desktop machine. It took ~8k iterations
> to fail, which matched max_user_watches. Once the program fails, it
> will fail right away if it is re-run.
>
> > It's a bit hard to find people who work on inotify, I'm afraid. If you had
> > the time to come up with a script or program which demonstrates the bug,
> > that would be super-helpful?
>
> Attached is a simple example that shows off the problem. On a system
> with a problem, it will only run for about
> fs.inotify.max_user_watches iterations. If everything is working, it
> should run forever.

I'll take a look at this. Thanks for providing a reproducer.

Amy
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