From manningc2@actrix.gen.nz Tue Jan 12 21:00:47 2010 Received: from smtp.firstline.co.nz ([203.167.210.162] helo=firstline.co.nz) by stoneboat.aleph1.co.uk with smtp (Exim 4.69) (envelope-from ) id 1NUnqv-0008Vh-QN for yaffs@lists.aleph1.co.uk; Tue, 12 Jan 2010 21:00:47 +0000 Received: (qmail 20208 invoked by uid 453); 12 Jan 2010 21:00:23 -0000 X-Virus-Checked: Checked by ClamAV on firstline.co.nz Received: from Unknown (HELO linux-dual-head.local) (10.14.210.25) by firstline.co.nz (qpsmtpd/0.40) with ESMTP; Wed, 13 Jan 2010 10:00:23 +1300 From: Charles Manning To: yaffs@lists.aleph1.co.uk Date: Wed, 13 Jan 2010 10:00:17 +1300 User-Agent: KMail/1.9.10 References: <916127.95432.qm@web27308.mail.ukl.yahoo.com> <201001121041.27814.manningc2@actrix.gen.nz> <6B5D4EE0C1F840D6963993A3B7790866@kwiPC> In-Reply-To: <6B5D4EE0C1F840D6963993A3B7790866@kwiPC> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <201001131000.17290.manningc2@actrix.gen.nz> X-SA-Exim-Connect-IP: 203.167.210.162 X-SA-Exim-Mail-From: manningc2@actrix.gen.nz X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-1.9 required=4.5 tests=AWL,BAYES_00,SPF_NEUTRAL autolearn=no version=3.2.5 X-SA-Exim-Version: 4.2.1 (built Wed, 25 Jun 2008 17:14:11 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Subject: Re: [Yaffs] [Yaffs2] Error yaffs_readdir on yaffs_fs.c X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.11 Precedence: list List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 21:00:48 -0000 On Tuesday 12 January 2010 14:42:09 =EA=B9=80=EC=9B=90=EC=9D=BC wrote: > hello.... charles > > I do display errorr point (red color). > > In yaffs_fs.c and yaffs_guts.c, please... confirm to file. > > I know...yaffs_GetObjectInode() function is getting i-node. > > I-node had "NULL" value. > > this time, yaffs filesystem display error message. > > I think to lost I-node. why do lost I-node? > what is reason? you will know me. > > thank you for you... > > as soon as.... I wish to send reason via e-mail to me. > > > > > > > > > ---------------------------------------------------- > Kernel error Message > ---------------------------------------------------- > > [root@hello /mnt/mtd3/up_wait_]# ls > Unable to handle kernel NULL pointer dereference at virtual address > 00000030 pgd =3D c3e8c000 > [00000030] *pgd=3D33e3f031, *pte=3D00000000, *ppte=3D00000000 > Internal error: Oops: 17 [#1] > Modules linked in: > CPU: 0 > PC is at yaffs_GetObjectInode+0x10/0x18 > LR is at yaffs_GetObjectInode+0x10/0x18 > pc : [] lr : [] Not tainted > sp : c3d77df4 ip : c3d77df4 fp : c3d77e00 > r10: 00000002 r9 : 00000002 r8 : c04924d4 > r7 : 00000001 r6 : c3e3d0d0 r5 : c04924b4 r4 : 0000002f > r3 : 00000004 r2 : c3d77e24 r1 : 000014b2 r0 : 00000000 > Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user > Control: 717F Table: 33E8C000 DAC: 00000015 > Process ls (pid: 934, stack limit =3D 0xc3d76194) > Stack: (0xc3d77df4 to 0xc3d78000) > 7de0: c3d77f4c c3d77e04 > c01154bc 7e00: c011c338 00000000 00000001 00000004 c05651a4 c0f87700 > c0e4b000 c0096db8 7e20: c3d77f74 34303255 36342e30 30333030 34312e30 > 35303736 2e343432 39303032 7e40: 30323031 37323731 312e3632 30303634 > 00303033 00000000 00000000 00000000 7e60: 00000000 00000000 00000000 > 00000000 00000000 00000000 00000000 00000000 7e80: 00000000 00000000 > 00000000 00000000 00000000 00000000 00000000 00000000 7ea0: 00000000 > 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7ec0: > 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 7ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 00000000 7f00: 00000000 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 7f20: 00000000 c0f876e0 c3e3d140 c3e3d0d0 fffffffe > c0096db8 c3d76000 401babcc 7f40: c3d77f70 c3d77f50 c0096a68 c01152d4 > 0008e110 00000000 00001000 fffffff7 7f60: c0f876e0 c3d77fa4 c3d77f74 > c0096f98 c00969c8 0008e140 0008e128 00000fd0 7f80: ffffffea 00001000 > 000002b4 00000000 000000d9 c00340a4 00000000 c3d77fa8 7fa0: c0033f20 > c0096f3c 00001000 000002b4 00000003 0008e110 00001000 00000278 7fc0: > 00001000 000002b4 00000000 000028cc 00000000 0008e0e0 401babcc beee1cf8 > 7fe0: 0008e110 beee1ca0 401bb0d0 4013473c 20000010 00000003 00000200 > 00000440 Backtrace: > [] (yaffs_GetObjectInode+0x0/0x18) from [] > (yaffs_readdir+0x1f8/0x2b4) [] (yaffs_readdir+0x0/0x2b4) from > [] (vfs_readdir+0xb0/0xd0) [] (vfs_readdir+0x0/0xd0) > from [] (sys_getdents64+0x6c/0xc4) r8 =3D C0F876E0 r7 =3D FFFF= =46FF7=20 > r6 =3D 00001000 r5 =3D 00000000 > r4 =3D 0008E110 > [] (sys_getdents64+0x0/0xc4) from [] > (ret_fast_syscall+0x0/0x2c) r8 =3D C00340A4 r7 =3D 000000D9 r6 =3D 0000= 0000 r5 > =3D 000002B4 > r4 =3D 00001000 > Code: e1a0c00d e92dd800 e24cb004 ebffed57 (e5900030) > Segmentation fault > > ----------------------------------------------------- > > > > > # source contens > > static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) > in yaffs_fs.c > > list_for_each(i, &obj->variant.directoryVariant.children) { > curoffs++; > if (curoffs >=3D offset) { > l =3D list_entry(i, yaffs_Object, siblings); > > yaffs_GetObjectName(l, name, > YAFFS_MAX_NAME_LENGTH + 1); > T(YAFFS_TRACE_OS, > (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name, > yaffs_GetObjectInode(l))); > > if (filldir(dirent, > name, > strlen(name), > offset, > yaffs_GetObjectInode(l), > yaffs_GetObjectType(l)) > < 0) { > goto up_and_out; > } > > offset++; > f->f_pos++; > } > } This code has been changed. Please try with the latest. If you still get the problem then please provide a test case for this. =2D- CHarles