From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with SMTP id 5A5226B0047 for ; Mon, 27 Sep 2010 05:10:57 -0400 (EDT) Date: Mon, 27 Sep 2010 05:10:56 -0400 (EDT) From: caiqian@redhat.com Message-ID: <1562178361.2027721285578656417.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <86925983.2027701285578620865.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> Subject: Re: [PATCH 0/3] Generic support for revoking mappings MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: =?utf-8?Q?Am=C3=A9rico_Wang?= Cc: "Eric W. Biederman" , Hugh Dickins , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Rik van Riel , Andrew Morton List-ID: ----- "Am=C3=A9rico Wang" wrote: > On Mon, Sep 27, 2010 at 04:52:29AM -0400, CAI Qian wrote: > >Just a head up. Tried to boot latest mmotm kernel with those patches > applied hit this. I am wondering what I did wrong. > > >=20 > You missed the header of this oops/warning/bug, is that a BUG_ON or > WARN_ON or other thing? Oh, sorry. Here it is, BUG: unable to handle kernel paging request at ffffffffffffffc0 IP: [] prio_tree_insert+0x188/0x2a0 PGD 1827067 PUD 1828067 PMD 0=20 Oops: 0000 [#1] SMP=20 last sysfs file:=20 CPU 5=20 >=20 >=20 > >Pid: 1, comm: init Not tainted 2.6.36-rc5-mm1+ #2 /KVM > >RIP: 0010:[] [] > prio_tree_insert+0x188/0x2a0 > >RSP: 0018:ffff880c3b1bfcd8 EFLAGS: 00010202 > >RAX: ffff880c374b40d8 RBX: 0000000000000100 RCX: ffff880c374b40d8 > >RDX: 0000000000000179 RSI: 0000000000000000 RDI: 0000000000000179 > >RBP: ffff880c9f4ba188 R08: 0000000000000001 R09: ffff880c374b9330 > >R10: 0000000000000001 R11: 0000000000000002 R12: ffff880c374b40d8 > >R13: 00000007fa7367ba R14: 00000007fa7367be R15: 0000000000000000 > >FS: 00007fa7369d9700(0000) GS:ffff8800df540000(0000) > knlGS:0000000000000000 > >CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > >CR2: ffffffffffffffc0 CR3: 0000000c374b1000 CR4: 00000000000006e0 > >DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > >DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > >Process init (pid: 1, threadinfo ffff880c3b1be000, task > ffff880c3b1bd400) > >Stack: > > ffff880c3b1bd400 ffff880c374b4088 ffff880c374b40d8 ffff880c374b4088 > ><0> ffff880c9f4ba168 ffff880c9f4ba188 ffff880c374b3680 > ffffffff810daff8 > ><0> 0000000000000002 ffff880c374b41f8 ffff880c374b42b0 > ffffffff810e9171 > >Call Trace: > > [] ? vma_prio_tree_insert+0x28/0x120 > > [] ? vma_adjust+0xe1/0x560 > > [] ? avc_has_perm+0x6b/0xa0 > > [] ? __split_vma+0x1c9/0x250 > > [] ? mprotect_fixup+0x708/0x7b0 > > [] ? handle_mm_fault+0x1da/0xcf0 > > [] ? pvclock_clocksource_read+0x50/0xc0 > > [] ? __dequeue_entity+0x40/0x50 > > [] ? file_has_perm+0xf1/0x100 > > [] ? sys_mprotect+0x182/0x250 > > [] ? system_call_fastpath+0x16/0x1b > >Code: 56 20 e9 d4 fe ff ff bb 01 00 00 00 48 d3 e3 48 85 db 0f 84 08 > 01 00 00 45 31 ff 66 45 85 c0 4c 89 e1 74 78 0f 1f 80 00 00 00 00 <48> > 8b 46 c0 48 2b 46 b8 4c 8b 6e 40 48 c1 e8 0c 4c 39 ef 4d 8d=20 > >RIP [] prio_tree_insert+0x188/0x2a0 > > RSP > >CR2: ffffffffffffffc0 > >---[ end trace 667258bb79b38e02 ]--- > > >=20 > Looks like something wrong in page fault. -- 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