Date: Wed, 02 Dec 1998 12:28:38 +0300 From: Dmitrij Tejblum <tejblum@arc.hq.cti.ru> To: dg@root.com Cc: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>, freebsd-bugs@FreeBSD.ORG Subject: Re: mmap of large files Message-ID: <199812020928.MAA19641@arc.hq.cti.ru> In-Reply-To: Your message of "Tue, 01 Dec 1998 21:45:42 PST." <199812020545.VAA03985@root.com>
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> >Does the test > > if ((pos + size > (vm_offset_t)-PAGE_SIZE) || > >in the mmap syscall have any purpose, other than break mmap with > >pos > 4GB? > > I think the code is wrong. I think it should be (addr + size) and comparing > against -PAGE_SIZE is probably also wrong - careful attention needs to be > paid to rounding and overflow issues here. Needs more analysis. > I think, vm_map_insert test for validity of (addr + size), no? Dima To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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