Date: Mon, 28 Aug 1995 02:35:18 +1000 From: Bruce Evans <bde@zeta.org.au> To: CVS-commiters@freefall.FreeBSD.org, cvs-sys@freefall.FreeBSD.org, joerg@freefall.FreeBSD.org Subject: Re: cvs commit: src/sys/i386/conf LINT Message-ID: <199508271635.CAA23170@godzilla.zeta.org.au>
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> Modified: sys/i386/conf LINT > Log: > Add a comment that a user with many open windows under X might need to > bump CHILD_MAX. > > Closes PR # conf/708: CHILD_MAX set rather low... > > Submitted by: careilly@monoid.cs.tcd.ie Aargh. The user should just increase the resource limit (`limit maxproc nnn' or `unlimit maxproc' in csh; `ulimit -u nnn' in bash; not supported in sh :-(). Changing CHILD_MAX in the kernel breaks any applications that depend on its fixed value (not many; perhaps only POSIX test suites that check that CHILD_MAX works :-). Changing the limit at runtime breaks these applications too, but at least it only applies to the current process tree. Changing CHILD_MAX everywhere would break binary compatibility. So does using limit at runtime, but the damage is limited. Similarly for OPEN_MAX. Bruce
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