I misspoke about my kernel Oops, when I unmount after touching a file on my YAFFS2 partition, it erely gives me a call trace. I erased my flash partition before executing these commands: # mount -t yaffs2 /dev/mtdblock4 /mnt/mtdb4 # cat /proc/yaffs YAFFS built:Apr 18 2005 14:33:02 $Id: yaffs_fs.c,v 1.2 2005/03/16 04:00:36 charles Exp $ $Id: yaffs_guts.c,v 1.5 2005/03/16 04:00:36 charles Exp $ Device yaffs startBlock......... 1 endBlock........... 1727 chunkGroupBits..... 1 chunkGroupSize..... 2 nErasedBlocks...... 1723 nTnodesCreated..... 0 nFreeTnodes........ 0 nObjectsCreated.... 100 nFreeObjects....... 96 nFreeChunks........ 110272 nPageWrites........ 0 nPageReads......... 0 nBlockErasures..... 0 nGCCopies.......... 0 garbageCollections. 0 passiveGCs......... 0 nRetriedWrites..... 0 nRetireBlocks...... 0 eccFixed........... 0 eccUnfixed......... 0 tagsEccFixed....... 0 tagsEccUnfixed..... 0 cacheHits.......... 0 nDeletedFiles...... 0 nUnlinkedFiles..... 0 nBackgroudDeletions 0 useNANDECC......... 1 isYaffs2........... 1 I then unmounted the partition without attempting to edit any files, followed by a remount: # umount /mnt/mtdb4 # mount -t yaffs2 /dev/mtdblock4 /mnt/mtdb4 # cat /proc/yaffs YAFFS built:Apr 18 2005 14:33:02 $Id: yaffs_fs.c,v 1.2 2005/03/16 04:00:36 charles Exp $ $Id: yaffs_guts.c,v 1.5 2005/03/16 04:00:36 charles Exp $ Device yaffs startBlock......... 1 endBlock........... 1727 chunkGroupBits..... 1 chunkGroupSize..... 2 nErasedBlocks...... 1723 nTnodesCreated..... 0 nFreeTnodes........ 0 nObjectsCreated.... 100 nFreeObjects....... 96 nFreeChunks........ 110272 nPageWrites........ 0 nPageReads......... 0 nBlockErasures..... 0 nGCCopies.......... 0 garbageCollections. 0 passiveGCs......... 0 nRetriedWrites..... 0 nRetireBlocks...... 0 eccFixed........... 0 eccUnfixed......... 0 tagsEccFixed....... 0 tagsEccUnfixed..... 0 cacheHits.......... 0 nDeletedFiles...... 0 nUnlinkedFiles..... 0 nBackgroudDeletions 0 useNANDECC......... 1 isYaffs2........... 1 This is what happens when I touch a file and unmount: # touch /mnt/mtdb4/file0 # umount /mnt/mtdb4 VFS: Busy inodes after unmount. Self-destruct in 5 seconds. Have a nice day... idr_remove called for id=4 which is not allocated. Call trace: [c00b44e0] idr_remove+0x158/0x1f0 [c004eac8] kill_anon_super+0x3c/0x6c [c004d964] deactivate_super+0xa0/0xd4 [c0065cf4] __mntput+0x30/0x44 [c0055798] path_release_on_umount+0x4c/0x60 [c00665c8] sys_umount+0x2bc/0x2d4 [c0002a00] ret_from_syscall+0x0/0x48 # mount -t yaffs2 /dev/mtdblock4 /mnt/mtdb4 # cat /proc/yaffs YAFFS built:Apr 18 2005 14:33:02 $Id: yaffs_fs.c,v 1.2 2005/03/16 04:00:36 charles Exp $ $Id: yaffs_guts.c,v 1.5 2005/03/16 04:00:36 charles Exp $ Device yaffs startBlock......... 1 endBlock........... 1727 chunkGroupBits..... 1 chunkGroupSize..... 2 nErasedBlocks...... 1722 nTnodesCreated..... 0 nFreeTnodes........ 0 nObjectsCreated.... 100 nFreeObjects....... 96 nFreeChunks........ 110208 nPageWrites........ 0 nPageReads......... 0 nBlockErasures..... 0 nGCCopies.......... 0 garbageCollections. 0 passiveGCs......... 0 nRetriedWrites..... 0 nRetireBlocks...... 0 eccFixed........... 0 eccUnfixed......... 0 tagsEccFixed....... 0 tagsEccUnfixed..... 0 cacheHits.......... 0 nDeletedFiles...... 0 nUnlinkedFiles..... 0 nBackgroudDeletions 0 useNANDECC......... 1 isYaffs2........... 1 On Tue, Apr 19, 2005 at 09:03:42AM +1200, Charles Manning (manningc2@actrix.gen.nz) wrote: > Hi Jeremy > > Could you please send me the following: > > * /proc/yaffs of a freshly mounted partition > * /proc/yaffs of the remounted partiton > * oops traceback > > Thanx > > -- charles > > > > On Tuesday 19 April 2005 08:10, Jeremy Fillingim wrote: > > Hi guys, > > > > I have a custom PPC based system on which I have been running 2.6.10 + > > board specific changes. The flash part that we are using is a 256MB > > large page device (2048 page bytes + 64 spare bytes). > > > > Up to this point I have been using JFFS2 + Summary support (head of MTD > > CVS) with a small root partition (32MB) and a second large partition > > (>200MB). The JFFS2 performance is decent in most cases, but mount times > > can be terrible. > > > > I wanted to evaluate YAFFS2 as a possible replacement for JFFS2, so I > > pulled the latest YAFFS2 code out of CVS and updated my MTD to the latest > > CVS. A few minor changes to the Makefile and Kconfig stuff was all that was > > required to get YAFFS2 compiled. > > > > I am able to successfully mount an empty partition, and it "looks" like > > a write to that partition succeeds. However, when I attempt to unmount the > > YAFFS2 partition, I get a kernel oops. When I remount the partition, > > my files do not show up. > > > > This is the message that I receive when I unmount after touching a file > > on the YAFFS2 partition. > > > > VFS: Busy inodes after unmount. Self-destruct in 5 seconds. Have a nice > > day... idr_remove called for id=4 which is not allocated. > > Call trace: > > [c00b44e0] idr_remove+0x158/0x1f0 > > [c004eac8] kill_anon_super+0x3c/0x6c > > [c004d964] deactivate_super+0xa0/0xd4 > > [c0065cf4] __mntput+0x30/0x44 > > [c0055798] path_release_on_umount+0x4c/0x60 > > [c00665c8] sys_umount+0x2bc/0x2d4 > > [c0002a00] ret_from_syscall+0x0/0x48 > > > > I did my MTD and YAFFS2 CVS checkouts on Friday April 15. > > > > Thank you in advance for any insight you may have. > > > > On Sun, Apr 17, 2005 at 06:23:25PM +0800, zheng wei (jeanwelly@gmail.com) > wrote: > > > I want to use yaffs on 2.6.11, my cpu is 2410. > > > I am not sure whether I should update the MTD in 2.6.11. > > > But now I found ECC in mtd can't work correctly on nandflash. > > > Also I want to use yaffs as a root fs. How can I get started? > > > Thanks for any idea. > > > > > > On 4/17/05, Wookey wrote: > > > > +++ Sergei Sharonov [05-04-14 10:33 -0500]: > > > > > Hi, > > > > > > > > > > I am working on ARM9/linux2.6.10 based system with a large > > > > > (256 MByte) NAND storage. Currently the filesystem used is jffs2. > > > > > Unfortunately the mount time is unacceptably long and I am > > > > > looking for an alternative. Can anybody comment on status > > > > > of YAFFS2? Note that version 2 is required since NAND page > > > > > size is 2 k. > > > > > > > > People are using YAFFS2 successfully. I'm not sure if any commercial > > > > products have actually shipped with it yet, but it is now tested and > > > > functional. > > > > > > > > For best mount-time splitting your flash into more than one partition > > > > is often smart so you can boot from a small partition and give user > > > > feedback whilst mounting a larger data partition. Obviously this > > > > doesn't suit all applications. > > > > > > > > We do have a plan for implementing checkpointing for much faster > > > > booting (under normal circumstances) but this work has not yet been > > > > sponsored by anyone. > > > > > > > > Wookey > > > > -- > > > > Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 > > > > 811679 work: http://www.aleph1.co.uk/ play: > > > > http://www.chaos.org.uk/~wookey/ > > > > > > > > _______________________________________________ > > > > yaffs mailing list > > > > yaffs@stoneboat.aleph1.co.uk > > > > http://stoneboat.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs > > > > > > -- > > > --------- > > > jeanwelly > > > Email: jeanwelly@gmail.com > > > China > > > > > > _______________________________________________ > > > yaffs mailing list > > > yaffs@stoneboat.aleph1.co.uk > > > http://stoneboat.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs > > > > _______________________________________________ > > yaffs mailing list > > yaffs@stoneboat.aleph1.co.uk > > http://stoneboat.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs