Thanks for your reply, shizheng. And could you tell me how can I fix the bug (,or any related links). HyoGi Sim On Sat, 2008-05-10 at 19:42 +0800, shizheng wrote: > Hi, > > I have got a similar question with yaffs+nandsim. > yaffs with 2.6.24.3 works fine in debian release, but not in ubuntu release. > The kernel bug is the same with yours at fs/yaffs2/yaffs_mtdif2.c:63!. > > best wishes, shizheng > > HyoGi Sim wrote: > > Hi all, > > > > I'm testing yaffs2 with nandsim, which is included in kernel mtd. > > I'm using linux-2.6.24(-gentoo-r3), and I'm downloaded yaffs2 via cvs > > (20080509). > > > > My trying was: > > > > # modprobe yaffs > > # load_nandsim.sh 1024 128 2048 // 1GB NAND flash memory (2K-page) > > > > # cat /proc/mtd > > dev: size erasesize name > > mtd0: 40000000 00020000 "NAND simulator partition 0" > > > > > > # mount -t yaffs /dev/mtdblock0 /mnt/yaffs // successful > > <6>[ 440.315262] yaffs: dev is 32505856 name is "mtdblock0" > > <6>[ 440.315269] yaffs: passed flags "" > > <4>[ 440.315273] yaffs: Attempting MTD mount on 31.0, "mtdblock0" > > <4>[ 440.315277] yaffs: auto selecting yaffs2 > > > > > > # cd /mnt/yaffs > > # bonnie // Filesystem benchmark program.., which was NOT successful > > File './Bonnie.5813', size: 536870912 > > Writing with putc()... > > > > And YaFFS hangs with following kernel error message. > > > > <0>[ 489.087953] ------------[ cut here ]------------ > > <2>[ 489.087958] kernel BUG at fs/yaffs2/yaffs_mtdif2.c:63! > > <0>[ 489.087960] invalid opcode: 0000 [#1] SMP > > <4>[ 489.087963] Modules linked in: mtdblock mtd_blkdevs mtdchar yaffs > > nandsim nand nand_ids nand_ecc mtd vboxdrv 3c59x i2c_nforce2 snd_pcm_oss > > snd_mixer_oss snd_hda_intel snd_pcm snd_timer snd snd_page_alloc joydev > > usbhid hid ftdi_sio usbserial nvidia(P) nvidiafb fb_ddc i2c_algo_bit > > vgastate i2c_core ohci1394 ohci_hcd ehci_hcd usbcore > > <4>[ 489.087982] > > <4>[ 489.087985] Pid: 5813, comm: bonnie Tainted: P > > (2.6.24-gentoo-r3 #5) > > <4>[ 489.087987] EIP: 0060:[] EFLAGS: 00210246 CPU: 0 > > <4>[ 489.087995] EIP is at nandmtd2_WriteChunkWithTagsToNAND+0xea/0x100 > > [yaffs] > > <4>[ 489.087997] EAX: d16e2400 EBX: 00000000 ECX: 00000000 EDX: > > 00000001 > > <4>[ 489.087999] ESI: d1781000 EDI: d2c13c70 EBP: 00000800 ESP: > > d2c13b90 > > <4>[ 489.088001] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > > <0>[ 489.088003] Process bonnie (pid: 5813, ti=d2c12000 task=d19d4a80 > > task.ti=d2c12000) > > <0>[ 489.088005] Stack: 00000000 d16e2400 e1405c9a d2c13be8 40000000 > > 00000000 00000001 d16e2400 > > <0>[ 489.088010] df6b5800 00000800 d1781000 e177016b 00000000 > > e177834a d2c13be8 c016f3e5 > > <0>[ 489.088015] 00000000 00000001 00000000 d2c13cb8 00000000 > > d16e2400 ffffffff d2c13c70 > > <0>[ 489.088020] Call Trace: > > <0>[ 489.088022] [] part_write_oob+0x7a/0xc0 [mtd] > > <0>[ 489.088028] [] yaffs_CheckGarbageCollection+0x2b/0xab0 > > [yaffs] > > <0>[ 489.088035] [] nandmtd2_WriteChunkWithTagsToNAND > > +0xda/0x100 [yaffs] > > <0>[ 489.088042] [] __link_path_walk+0x945/0xc10 > > <0>[ 489.088048] [] nandmtd2_WriteChunkWithTagsToNAND > > +0x0/0x100 [yaffs] > > <0>[ 489.088054] [] yaffs_WriteChunkWithTagsToNAND > > +0x67/0x120 [yaffs] > > <0>[ 489.088062] [] yaffs_WriteNewChunkWithTagsToNAND > > +0x326/0x5c0 [yaffs] > > <0>[ 489.088070] [] yaffs_WriteChunkWithTagsToNAND > > +0x67/0x120 [yaffs] > > <0>[ 489.088077] [] yaffs_WriteChunkDataToObject+0x91/0xf0 > > [yaffs] > > <0>[ 489.088089] [] yaffs_WriteDataToFile+0x1da/0x330 > > [yaffs] > > <0>[ 489.088098] [] yaffs_commit_write+0xb5/0x280 [yaffs] > > <0>[ 489.088105] [] yaffs_commit_write+0x0/0x280 [yaffs] > > <0>[ 489.088111] [] generic_file_buffered_write+0x3f6/0x630 > > <0>[ 489.088116] [] __wake_up_common+0x4b/0x80 > > <0>[ 489.088122] [] current_fs_time+0x13/0x20 > > <0>[ 489.088125] [] __generic_file_aio_write_nolock > > +0x26b/0x530 > > <0>[ 489.088130] [] yaffs_GetObjectFileLength+0x5/0x30 > > [yaffs] > > <0>[ 489.088137] [] iget_locked+0x74/0x140 > > <0>[ 489.088141] [] generic_file_aio_write+0x56/0xd0 > > <0>[ 489.088146] [] do_sync_write+0xc7/0x110 > > <0>[ 489.088152] [] autoremove_wake_function+0x0/0x50 > > <0>[ 489.088155] [] handle_mm_fault+0x2b7/0x5c0 > > <0>[ 489.088159] [] copy_to_user+0x30/0x60 > > <0>[ 489.088164] [] vfs_write+0xa6/0x140 > > <0>[ 489.088167] [] do_sync_write+0x0/0x110 > > <0>[ 489.088170] [] sys_write+0x41/0x70 > > <0>[ 489.088174] [] sysenter_past_esp+0x5f/0x85 > > <0>[ 489.088178] [] rpc_info_open+0x40/0x90 > > <0>[ 489.088182] ======================= > > <0>[ 489.088183] Code: 8b 74 24 14 89 44 24 10 f7 e5 0f af f5 8d 2c 16 > > 89 c2 8b 44 24 1c 89 e9 ff 50 48 85 c0 0f 94 c0 83 c4 5c 5b 0f b6 c0 5e > > 5f 5d c3 <0f> 0b eb fe 66 90 8d 44 24 40 89 fa e8 35 dc ff ff e9 6d ff > > ff > > <0>[ 489.088210] EIP: [] nandmtd2_WriteChunkWithTagsToNAND > > +0xea/0x100 [yaffs] SS:ESP 0068:d2c13b90 > > <4>[ 489.088230] ---[ end trace bbd794fad52da67a ]--- > > > > > > > > > > What should I do now? > > > > > > >