From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 1 Dec 2008 18:14:59 -0800 From: Andrew Morton Subject: Re: [Bug 12134] New: can't shmat() 1GB hugepage segment from second process more than one time Message-Id: <20081201181459.49d8fcca.akpm@linux-foundation.org> In-Reply-To: References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org Cc: bugme-daemon@bugzilla.kernel.org, starlight@binnacle.cx, Adam Litke , Andy Whitcroft , David Gibson List-ID: (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Mon, 1 Dec 2008 18:01:39 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=12134 > > Summary: can't shmat() 1GB hugepage segment from second process > more than one time > Product: Memory Management > Version: 2.5 > KernelVersion: 2.26.27.7 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: high > Priority: P1 > Component: Other > AssignedTo: akpm@osdl.org > ReportedBy: starlight@binnacle.cx > > > Latest working kernel version: don't know > Earliest failing kernel version: don't know > Distribution: kernel.org > Hardware Environment: HP DL160 G5 w/ dual E5430's & 16GB PC2-5300 FB-DIMMs > Software Environment: F9 > Problem Description: > > can't shmat() 1GB hugepage segment from second process more than one time > > Steps to reproduce: > > create 1GB or more hugepage shmget/shmat segment > attached at explicit virtual address 0x4_00000000 > > run another program that attaches segment > > run it again, fails > > eventually get attached 'dmesg' output > > works fine under RHEL 4.6 > > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org