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 E3A43620002 for ; Thu, 24 Dec 2009 23:56:37 -0500 (EST) Received: by qyk14 with SMTP id 14so3684985qyk.11 for ; Thu, 24 Dec 2009 20:56:36 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 25 Dec 2009 12:56:36 +0800 Message-ID: <2375c9f90912242056h29f20dc5rb3f891c732e0d362@mail.gmail.com> Subject: Re: 2.6.28.10 - kernel BUG at mm/rmap.c:725 From: =?UTF-8?Q?Am=C3=A9rico_Wang?= Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: CoolCold Cc: Linux kernel , linux-mm@kvack.org, hugh.dickins@tiscali.co.uk List-ID: On Thu, Dec 24, 2009 at 7:09 PM, CoolCold wrote: > 3 days ago LA on server become very high and it was working very > strange, so was rebooted. There are such entryies in log about kernel > bug - kernel BUG at mm/rmap.c:725! . Googling didn't provide me with > exact answer is it bug or hardware problems, something similar was > here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/252977/comments= /56 > In general this server had number of unexpected stalls during several > months, but there is no ipkvm, so i can't say where something on > console or not. Hope you will help. > > Kernel version is 2.6.28.10 , self-builded. System - Debian stable/testin= g. > > Please reply to me directly, cuz i'm not subsribed to list. > > Dec 21 22:05:01 gamma kernel: Eeek! page_mapcount(page) went negative! (-= 1) > Dec 21 22:05:01 gamma kernel: =C2=A0 page pfn =3D 1f2c81 > Dec 21 22:05:01 gamma kernel: =C2=A0 page->flags =3D 20000000008007c > Dec 21 22:05:01 gamma kernel: =C2=A0 page->count =3D 2 > Dec 21 22:05:01 gamma kernel: =C2=A0 page->mapping =3D ffff8801fd870b58 > Dec 21 22:05:01 gamma kernel: =C2=A0 vma->vm_ops =3D 0xffffffff80535020 > Dec 21 22:05:01 gamma kernel: =C2=A0 vma->vm_ops->fault =3D shmem_fault+0= x0/0x69 > Dec 21 22:05:01 gamma kernel: =C2=A0 vma->vm_file->f_op->mmap =3D shmem_m= map+0x0/0x2e > Dec 21 22:05:01 gamma kernel: ------------[ cut here ]------------ > Dec 21 22:05:01 gamma kernel: kernel BUG at mm/rmap.c:725! Hey, commit 3dc147414cc already removed this BUG(), not sure how serious this is... Adding mm people into Cc. Thanks. -- 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