#153 On linux treat select return of ESRCH as non-fatal

[open-speedshop]

6/5/2006 (slc) Calling select() on <some> Linux
systems occasionally returns ESRCH for unknown
reasons. The select(2) manpage on those systems makes
no mention of this as a possible error code. Silently
retry the select() for now (from Bill Hachfeld, SGI).