From: CAI Qian Subject: Re: s390x: kernel BUG at fs/ext4/inode.c:1591! Date: Mon, 1 Apr 2013 02:30:47 -0400 (EDT) Message-ID: <1211053180.322948.1364797847717.JavaMail.root@redhat.com> References: <2133129347.8273339.1364549222854.JavaMail.root@redhat.com> <87ip46ss0o.fsf@openvz.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Theodore Ts'o" , LKML , linux-s390 , Steve Best , linux-ext4@vger.kernel.org To: Dmitry Monakhov Return-path: Received: from mx4-phx2.redhat.com ([209.132.183.25]:38862 "EHLO mx4-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757216Ab3DAGav convert rfc822-to-8bit (ORCPT ); Mon, 1 Apr 2013 02:30:51 -0400 In-Reply-To: <87ip46ss0o.fsf@openvz.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: ----- Original Message ----- > From: "Dmitry Monakhov" > To: "CAI Qian" , "Theodore Ts'o" > Cc: "LKML" , "linux-s390" , "Steve Best" > , linux-ext4@vger.kernel.org > Sent: Monday, April 1, 2013 2:07:35 PM > Subject: Re: s390x: kernel BUG at fs/ext4/inode.c:1591! >=20 > On Fri, 29 Mar 2013 05:27:02 -0400 (EDT), CAI Qian > wrote: > >=20 > I've spent a half of weekend by trying to create s390x guest image, > without any success. Can you please share it. Well, do you have something like IBM system-Z? http://en.wikipedia.org/wiki/IBM_System_z10 Also can be reproduced on system-p, http://en.wikipedia.org/wiki/IBM_System_p Never seen it on x86 so far though. CAI Qian > >=20 > > ----- Original Message ----- > > > From: "Theodore Ts'o" > > > To: "CAI Qian" > > > Cc: "LKML" , "linux-s390" > > > , "Steve Best" > > > , linux-ext4@vger.kernel.org > > > Sent: Thursday, March 28, 2013 8:05:17 PM > > > Subject: Re: s390x: kernel BUG at fs/ext4/inode.c:1591! > > >=20 > > > On Thu, Mar 28, 2013 at 02:40:33AM -0400, CAI Qian wrote: > > > > System hung when running xfstests-dev 013 test case on an s390x > > > > guest. Never saw > > > > this on 3.9-rc3 before but need to double-check. Any idea? > > > >=20 > > > > =C3=9D 1113.795759=C2=A8 ------------=C3=9D cut here =C2=A8----= -------- > > > > =C3=9D 1113.795771=C2=A8 kernel BUG at fs/ext4/inode.c:1591! > > >=20 > > > thanks for the report. What kernel version did this come from? = Was > > > it 3.9-rc4? (line 1591 for 3.9-rc3 doesn't contain a BUG_ON). > > Yes, the lastest mainline. > > >=20 > > > If it is indeed 3.9-rc4, it would be helpful, since you can repro= duce > > > the problem, to insert a debugging printk which fires when > > > bh->b_blocknr !=3D pblock before the BUG_ON, and have it print th= e > > > b_blocknr and pblock values. > > bh->b_blocknr=3D100346 > > pblock=3D66797 > >=20 > > Bisecting results so far, > > git bisect start > > # good: [a937536b868b8369b98967929045f1df54234323] Linux 3.9-rc3 > > git bisect good a937536b868b8369b98967929045f1df54234323 > > # bad: [9064171268d838b8f283fe111ef086b9479d059a] Merge tag 'for-li= nus' of > > git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes > > git bisect bad 9064171268d838b8f283fe111ef086b9479d059a > > # bad: [38d78e587d4960d0db94add518d27ee74bad2301] mqueue: sys_mq_op= en: do > > not call mnt_drop_write() if read-only > > git bisect bad 38d78e587d4960d0db94add518d27ee74bad2301 > > # good: [e7489622d3603b7d161b484dcd340d9f678b0c7a] Merge tag 'arm64= -fixes' > > of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aar= ch64 > > git bisect good e7489622d3603b7d161b484dcd340d9f678b0c7a > > # good: [172a271b5e090da7468c66b9ccbcdb3d929eed75] Merge branch 'dr= m-fixes' > > of git://people.freedesktop.org/~airlied/linux > > git bisect good 172a271b5e090da7468c66b9ccbcdb3d929eed75 > > # good: [0a7e453103b9718d357688b83bb968ee108cc874] Merge branch 'ne= xt' of > > git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux > > git bisect good 0a7e453103b9718d357688b83bb968ee108cc874 > > # bad: [0e401101db49959f5783f6ee9e676124b5a183ac] ext4: fix memory = leakage > > in mext_check_coverage > > git bisect bad 0e401101db49959f5783f6ee9e676124b5a183ac > > CAI Qian > > >=20 > > > Thanks, > > >=20 > > > - Ted > > >=20 > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-ker= nel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ >=20 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html