Ubuntu's next release and raising hard ulimit on ubuntu

Scott Ritchie scott at open-vote.org
Fri Mar 25 21:38:15 CDT 2011

On 03/25/2011 06:26 AM, Dan Kegel wrote:
> Scott, correct me if I'm wrong, but does Natty still have the
> hard limit of 1024 files open per process?
> If so, should be ask people to go vote for
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/663090
> ?
> Getting that limit raised might avoid increasing numbers of
> support requests from users who can't figure out why Wine can't run their
> p2p downloader ( http://bugs.winehq.org/show_bug.cgi?id=25015 ).

So it turns out it's not a kernel config issue per se:

On 03/25/2011 06:05 PM, Tim Gardner wrote:
> The initial hard limit value is not a CONFIG option, so the only way it
> can be changed is by carrying a patch in the kernel, something I would
> prefer not to do. This is the macro that initializes the hard limit:
> include/linux/fs.h:#define INR_OPEN 1024                /* Initial
> setting for nfile rlimits */
> What is the issue with having upstart set this limit early in the boot
> cycle? Won't all new processes inherit the modified limit?

If that's a good idea then we need to retarget the bug

-Scott Ritchie

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