Date: Sat, 04 Jul 2015 10:04:20 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 201327] [patch] avoid KVA fragment in memguard when using MG_GUARD_AROUND option Message-ID: <bug-201327-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201327 Bug ID: 201327 Summary: [patch] avoid KVA fragment in memguard when using MG_GUARD_AROUND option Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Keywords: patch Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: luke.tw@gmail.com Keywords: patch Created attachment 158323 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=158323&action=edit memguard_cursor patch With MG_GUARD_AROUND option, memguard increases memguard_cursor with one more PAGE_SIZE. This results in one PAGE_SIZE fragment in KVA. * before patch old memguard_cursor: 0xfffffe0000400000 memeguard:allocate 0x3000 next memguard_curor: 0xfffffe0000404000 * after patch old memguard_cursor: 0xfffffe0000400000 memeguard:allocate 0x3000 next memguard_curor: 0xfffffe0000403000 -- You are receiving this mail because: You are the assignee for the bug.
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