Date: Tue, 16 Oct 2007 15:55:07 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-current@FreeBSD.org Cc: Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-stable@FreeBSD.org Subject: Re: 2G+ sysv shm segments Message-ID: <200710161555.12384.jkim@FreeBSD.org> In-Reply-To: <20071015141714.GL24828@rambler-co.ru> References: <20071015141714.GL24828@rambler-co.ru>
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On Monday 15 October 2007 10:17 am, Igor Sysoev wrote: > Two years ago Christian S.J. Peron had increased total number of > SysV shm pages on 64-bit platform, that allows to create many shm > segments more than 2G in sum. However, the patch does not allow to > create a single large segment more than 2G. The attached patches > against 6.x and 7.x allow to create 2G+ segments. I know that stock > 6.x will not have this feature because of compatibility, but I send > 6.x patch too because someone may want to use 2G+ shm on 6.x. > > To install: > > patch -d < /usr < big_sysvshmX.txt > > [ rebuild kernel ] > > cd /usr/src/include/ > make obj > make > make install > > cd /usr/src/usr.bin/ipcs/ > make obj > make > make install Actually there is a PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=113218 Unfortunately it breaks ABI because it increases sizeof(struct shmid_ds). Since the tree is unfrozen, I can commit it, though. ;-) Jung-uk Kim [Note: Peter, thanks for the casting suggestion.]
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