Date: Mon, 27 Aug 2012 11:19:56 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Sergey Kandaurov <pluknet@freebsd.org> Cc: OriS <site.freebsd@orientalsensation.com>, freebsd-stable@freebsd.org Subject: Re: Weird message in dmesg Message-ID: <86harozo77.fsf@ds4.des.no> In-Reply-To: <CAE-mSOJWWELwi=gduOOrwfGUrmox1sy8PSm=CXgZ45xLNu78cA@mail.gmail.com> (Sergey Kandaurov's message of "Mon, 27 Aug 2012 12:26:49 %2B0400") References: <CALazp%2BVajMK8FgqJSr5KRB3y2bpH=ZxL2PNLCqPrKD34LM%2BVqw@mail.gmail.com> <CAE-mSOJWWELwi=gduOOrwfGUrmox1sy8PSm=CXgZ45xLNu78cA@mail.gmail.com>
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Sergey Kandaurov <pluknet@freebsd.org> writes:
> Index: /usr/src/sys/vm/swap_pager.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- /usr/src/sys/vm/swap_pager.c (revision 239722)
> +++ /usr/src/sys/vm/swap_pager.c (working copy)
> @@ -2135,7 +2135,7 @@ swapon_check_swzone(unsigned long npages)
> if (npages > maxpages / 2) {
> printf("warning: total configured swap (%lu pages) "
> "exceeds maximum recommended amount (%lu pages).\n",
> - npages, maxpages);
> + npages, maxpages / 2);
> printf("warning: increase kern.maxswzone "
> "or reduce amount of swap.\n");
> return (-1);
Correct. The theoretical maximum is maxpages, but due to fragmentation,
you can run out of space well before that.
DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no
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