Re: [RFC] /dev/ioasid uAPI proposal

Jason Gunthorpe
2021-06-07T18:01:53Z

On Mon, Jun 07, 2021 at 03:30:21PM +0200, Enrico Weigelt, metux IT consult wrote:
> On 02.06.21 19:21, Jason Gunthorpe wrote:
>
> Hi,
>
> > Not really, once one thing in an applicate uses a large number FDs the
> > entire application is effected. If any open() can return 'very big
> > number' then nothing in the process is allowed to ever use select.
>
> isn't that a bug in select() ?

<shrug> it is what it is, select has a fixed size bitmap of FD #s and
a hard upper bound on that size as part of the glibc ABI - can't be
fixed.

Jason