RE: [PATCH] fs/select: add vmalloc fallback for select(2)

From: David Laight
Date: Wed Sep 28 2016 - 12:33:50 EST

From: Vlastimil Babka
> Sent: 27 September 2016 12:51
> Process name suggests it's part of db2 database. It seems it has to implement
> its own interface to select() syscall, because glibc itself seems to have a
> FD_SETSIZE limit of 1024, which is probably why this wasn't an issue for all the
> years...

ISTR the canonical way to increase the size being to set FD_SETSIZE
to a larger value before including any of the headers.

Or doesn't that work with linux and glibc ??