From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: Re: BUG: unable to handle kernel NULL pointer dereference (4.0.1 w/2.6.32.36) Date: Fri, 24 Jun 2011 11:25:51 -0700 Message-ID: <4E04D6AF.2040104@goop.org> References: <1307791064669-4478572.post@n5.nabble.com> <1307924243.2516.201.camel@ramone> <4DF739AF0200007800046F42@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4DF739AF0200007800046F42@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jan Beulich Cc: quartex , "xen-devel@lists.xensource.com" , Pasi@citrix.com, Daniel Stodden List-Id: xen-devel@lists.xenproject.org On 06/14/2011 01:36 AM, Jan Beulich wrote: >>>> On 13.06.11 at 02:17, Daniel Stodden wrote: >> Can you all pull in this one? >> >> http://xenbits.xen.org/gitweb/?p=people/dstodden/linux.git;a=commit;h=a76525 >> 7af7e28c41bd776c3e03615539597eb592 > Any reason why after several months this still doesn't appear to be in > stable-2.6.32, which is what people are generally directed to use? Daniel? Should I merge this? Thanks, J > Jan > >> Likely the one, but let me absolutely know if not. >> >> Daniel >> >> >> On Sat, 2011-06-11 at 07:17 -0400, quartex wrote: >>> I have updated to 2.6.32.41 but it happened again. >>> >>> [491154.766766] BUG: unable to handle kernel NULL pointer dereference >>> at 0000000000000320 >>> [491154.767477] IP: [] blktap_device_end_request+0x4a/0x71 >>> [491154.767844] PGD 3db17067 PUD 3cebe067 PMD 0 >>> [491154.768219] Oops: 0000 [#1] SMP >>> [491154.768572] last sysfs file: /sys/devices/vbd-4-51713/statistics/wr_sect >>> [491154.768942] CPU 3 >>> [491154.769295] Modules linked in: netconsole [last unloaded: >>> scsi_wait_scan] >>> [491154.769683] Pid: 4392, comm: tapdisk2 Not tainted 2.6.32.36 #4 S3420GP >>> [491154.770056] RIP: e030:[] [] >>> blktap_device_end_request+0x4a/0x71 >>> [491154.770767] RSP: e02b:ffff88003cd33ca8 EFLAGS: 00010046 >>> [491154.771133] RAX: 0000000000000000 RBX: ffff88003df60d20 RCX: >>> 0000000000000000 >>> [491154.771824] RDX: 00000000000000a1 RSI: 0000000000000001 RDI: >>> 0000000000000004 >>> [491154.772524] RBP: ffff88003cd33cc8 R08: 0000000000000000 R09: >>> ffff88003cd33b08 >>> [491154.773222] R10: 0000000000000001 R11: ffffffff00001000 R12: >>> ffff88003ccadb20 >>> [491154.773915] R13: ffff88003d8e3c00 R14: 0000000000000000 R15: >>> 0000000000000002 >>> [491154.774622] FS: 00007f152f810740(0000) GS:ffff88002808f000(0000) >>> knlGS:0000000000000000 >>> [491154.775325] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b >>> [491154.775683] CR2: 0000000000000320 CR3: 000000003b095000 CR4: >>> 0000000000002660 >>> [491154.776380] DR0: 0000000000000000 DR1: 0000000000000000 DR2: >>> 0000000000000000 >>> [491154.777079] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: >>> 0000000000000400 >>> [491154.777770] Process tapdisk2 (pid: 4392, threadinfo >>> ffff88003cd32000, task ffff88003d833c80) >>> [491154.778476] Stack: >>> [491154.778821] ffff88003d8e3c00 0000000000000000 ffff88003ccadb20 >>> 0000000000e5386f >>> [491154.779220] <0> ffff88003cd33e58 ffffffff8128beab 000000003cd33ce8 >>> ffffffff81aab128 >>> [491154.779956] <0> 000000013d743ac0 ffff88003d7439a0 000000019681a000 >>> ffff88003fffc800 >>> [491154.780987] Call Trace: >>> [491154.781334] [] blktap_ring_ioctl+0x12d/0x23f >>> [491154.781676] [] ? avc_has_perm+0x57/0x69 >>> [491154.782017] [] ? inode_has_perm+0x5f/0x61 >>> [491154.782368] [] ? generic_file_aio_write+0x8c/0xa9 >>> [491154.782718] [] vfs_ioctl+0x6a/0x82 >>> [491154.783072] [] do_vfs_ioctl+0x473/0x4b9 >>> [491154.783426] [] sys_ioctl+0x51/0x74 >>> [491154.783781] [] system_call_fastpath+0x16/0x1b >>> [491154.784142] Code: e6 4c 89 >>> [491154.795155] [] do_vfs_ioctl+0x473/0x4b9 >>> >>> >>> >>> >>> >>> -- >>> View this message in context: >> http://xen.1045712.n5.nabble.com/BUG-unable-to-handle-kernel-NULL-pointer-dere >> ference-4-0-1-w-2-6-32-36-tp4432056p4478572.html >>> Sent from the Xen - Dev mailing list archive at Nabble.com. >>> >>> _______________________________________________ >>> Xen-devel mailing list >>> Xen-devel@lists.xensource.com >>> http://lists.xensource.com/xen-devel >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >