From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp02.mail.gol.com (smtp02.mail.gol.com [203.216.5.12]) by kvack.org (8.8.7/8.8.7) with ESMTP id VAA21533 for ; Fri, 26 Feb 1999 21:37:58 -0500 Message-ID: <36D75AF7.18C593E7@earthling.net> Date: Sat, 27 Feb 1999 11:39:51 +0900 From: Neil Booth MIME-Version: 1.0 Subject: Re: PATCH - bug in vfree References: <36CEA095.D5EA37B5@earthling.net> <36CEA72C.7B86B221@earthling.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: linux-mm@kvack.org, Andrea Arcangeli List-ID: Andrea Arcangeli wrote: > Hmm, when I checked it one year ago I didn't seen a way the bug could > corrupt memory. Yes, you missed my retraction of that bit below. Neil. Neil Booth wrote: > > Neil Booth wrote: > > > More deeply:- Close inspection of get_vm_area reveals that > > (intentionally?) it does NOT insist there be a cushion page behind a VMA > > that is placed in front of a previously-allocated VMA, it ONLY > > guarantees that a cushion page lies in front of newly-allocated VMAs. > > Sorry, this is not correct (mistook < for <=). The bug report is > correct, though. > > Neil. -- To unsubscribe, send a message with 'unsubscribe linux-mm my@address' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/