Re: Limit of 64 Mounted Filesystems

Stephen C. Tweedie (sct@redhat.com)
Fri, 27 Nov 1998 17:37:55 GMT


Hi,

On Thu, 26 Nov 1998 00:21:35 +0100 (MET), Michel LESPINASSE
<walken@wrs.com> said:

> On Wed, 25 Nov 1998, Richard Kaszeta wrote:
>> On my linux machines, running 2.0.36, I've discovered that there is a
>> limit of 64 mounted filesystems.

> I also had this problem because I am mounting a lot of clearcase views at
> my job - I can hardly work with less than 30 mounted filesystems, and the
> 64 limit is easy to reach.

Fixed in 2.1.

On Thu, 26 Nov 1998 10:19:27 +0000 (GMT), Tigran Aivazian
<tigran@aivazian.demon.co.uk> said:

> Have a look at include/linux/fs.h/NR_SUPER but it is set to 256
> in 2.1.129 (maybe lower in 2.0.x I don't know).

Yes, but in 2.1 it is not a hard upper limit: you can increase the
soft limit at run time by echoing a new value to /proc/sys/super-max,
and space for new filesystems will be allocated on demand.

--Stephen

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