Date: Mon, 2 May 2005 00:42:22 -0700 From: Peter Wemm <peter@wemm.org> To: freebsd-amd64@freebsd.org Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: 32GB/device swap limit on amd64 Message-ID: <200505020042.22898.peter@wemm.org> In-Reply-To: <20050501220614.GA50235@xor.obsecurity.org> References: <20050501220614.GA50235@xor.obsecurity.org>
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On Sunday 01 May 2005 03:06 pm, Kris Kennaway wrote:
> Looks like amd64 has the following limit, which is the same as on
> i386:
>
> WARNING: reducing size to maximum of 67108864 blocks per swap unit
>
> Can this be easily fixed on amd64?
>
> Kris
This looks like its a subr_blist.c problem:
/*
* If we go beyond this, we get overflows in the radix
* tree bitmap code.
*/
mblocks = 0x40000000 / BLIST_META_RADIX;
if (nblks > mblocks) {
printf("WARNING: reducing size to maximum of %lu blocks per swap unit\n",
mblocks);
nblks = mblocks;
}
sys/blist.h:#define BLIST_META_RADIX 16
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5
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