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Re: PAGE_SIZE Availability Inconsistency
- From: Christoph Hellwig <hch at infradead dot org>
- To: "H. Peter Anvin" <hpa at zytor dot com>
- Cc: Christoph Hellwig <hch at infradead dot org>, Arjan van de Ven <arjan at infradead dot org>, Roman Zippel <zippel at linux-m68k dot org>, David Brown <dmlb2000 at gmail dot com>, Linux Kernel Mailing List <linux-kernel at vger dot kernel dot org>, gdb at sourceware dot org
- Date: Thu, 8 Mar 2007 17:12:12 +0000
- Subject: Re: PAGE_SIZE Availability Inconsistency
- References: <firstname.lastname@example.org> <20070306092917.GA5226@infradead.org> <email@example.com> <20070308090031.GB7373@infradead.org> <firstname.lastname@example.org> <20070308160852.GB9916@infradead.org> <45F0426C.email@example.com>
On Thu, Mar 08, 2007 at 09:05:48AM -0800, H. Peter Anvin wrote:
> Christoph Hellwig wrote:
> >No, no no. We should never export PAGE_SIZE. We might export NBPG
> >as deprecated symbol for gdb if it really needs it, but that should
> >happen only on a.out systems, and it it should be a true constant,
> >not depending on PAGE_SIZE.
> >I've Cc'ed the gdb list on whether they have any comments on this
> By the way, it's a massive snafu that the swap area magic number is
> dependent on PAGE_SIZE. There is absolutely no good reason for that.
Yeah, now that you mention it I remember having problems with that
in the past. We should probably create a new swap format that avoids
this problem. I'll put it on my ever growing todo list.