Hi ,
Thanks for your continued co-operation and support.
With suggestions from yourside , I did the modification at low level
drivers.
Now I am not seeing any YAFFS error message during mounting. I can see *
lost+found* in mounted directory.
Command #cat /proc/yaffs gives the following results:
* #cat /proc/yaffs*
YAFFS built:Jan 21 2010 20:23:59
$Id: yaffs_fs.c,v 1.58 2007/02/14 01:09:06 wookey Exp $
$Id: yaffs_guts.c,v 1.47 2007/02/14 01:09:06 wookey Exp $
Device 0 "Linux Image"
startBlock......... 0
endBlock........... 15
chunkGroupBits..... 0
chunkGroupSize..... 1
nErasedBlocks...... 9
nTnodesCreated..... 0
nFreeTnodes........ 0
nObjectsCreated.... 200
nFreeObjects....... 94
nFreeChunks........ 639
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
Now I gave the following commands
*#cd /mnt*
*#mkdir abc*
Gives the error message as
mkdir: cannot create directory 'abc': Cannot allocate memory
*#cat /proc/yaffs*
YAFFS built:Jan 21 2010 20:23:59
$Id: yaffs_fs.c,v 1.58 2007/02/14 01:09:06 wookey Exp $
$Id: yaffs_guts.c,v 1.47 2007/02/14 01:09:06 wookey Exp $
Device 0 "Linux Image"
startBlock......... 0
endBlock........... 15
chunkGroupBits..... 0
chunkGroupSize..... 1
nErasedBlocks...... 9
nTnodesCreated..... 0
nFreeTnodes........ 0
nObjectsCreated.... 200
nFreeObjects....... 94
nFreeChunks........ 639
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..... 1*
nBackgroudDeletions 0
useNANDECC......... 1
isYaffs2........... 1
every time when I create a directry/file, value of *nUnlinkedFiles* is
changing but I can not see the folders/files in mounted dicertory.
Thanks in advance.
Regards,
Saquib Herman
On Thu, Jan 21, 2010 at 4:30 PM, Saquib <
saquib.herman@gmail.com> wrote:
> Hi,
>
> Thanks for your continued co-operation and support.
>
> After erasing the flash I tried to mount YAFFS. Log are attached in this
> mail while mounting YAFFS.
> This is the trace of YAFFS while while doing mkdir.
>
> *yaffs_mknod: making oject for abc, mode 41ed dev 0
> yaffs locking
> yaffs_lookup for 1:abc
> yaffs unlocking
> yaffs_lookup not found
> yaffs_mkdir
> Cannot allocate memory
> yaffs_mknod: parent object 1 type 3
> yaffs_mknod: making oject for abc, mode 41ed dev 0
> yaffs locking
> yaffs_mknod: making directory
> yaffs unlocking
> yaffs_mknod failed making object
> *
> When we checked the stat of YAFFS. below are the information we got.
>
> / # cat /proc/yaffs
> YAFFS built:Jan 20 2010 18:30:06
> $Id: yaffs_fs.c,v 1.58 2007/02/14 01:09:06 wookey Exp $
> $Id: yaffs_guts.c,v 1.47 2007/02/14 01:09:06 wookey Exp $
> Device 0 "Linux Image"
>
> startBlock......... 0
> endBlock........... 15
> chunkGroupBits..... 0
> chunkGroupSize..... 1
> nErasedBlocks...... 10
> nTnodesCreated..... 0
> nFreeTnodes........ 0
> nObjectsCreated.... 200
> nFreeObjects....... 94
> nFreeChunks........ 703
>
> 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
>
> and /proc/mtd gave the below information.
> / # cat /proc/mtd
> dev: size erasesize name
> mtd0: 00200000 00020000 "Linux Image"
> mtd1: 00100000 00020000 "DSP Image"
> mtd2: 00100000 00020000 "Parameter Info"
>
> Regards
> Saquib H
>
> On Thu, Jan 21, 2010 at 3:29 AM, Charles Manning <manningc2@actrix.gen.nz>wrote:
>
>> Try turning on all tracing, including tracing in the mtd.
>>
>> Also:
>> 1) What does 'cat /rpoc/mtd' show?
>> 2) What does dmesg show when you do the mount?
>> 3) Did you erase the flash?
>>
>> If you are getting a 'no more erased blocks' message then that means all
>> the
>> blocks were either full or bad. Try to erase the flash and see if that
>> fixes
>> things. If not, then there is alikely a problem in the bad block handling
>> or
>> spare area handling in your mtd.
>>
>> -- Charles
>>
>> On Thursday 21 January 2010 03:32:47 Saquib wrote:
>> > Hi,
>> >
>> > Thanks for your continued support and cooperation.
>> >
>> > On MTD partition size of 2MB, I am trying to mount the YAFFS2.
>> >
>> > Steps are as follows:
>> >
>> > (1) First I have written the low level driver to access NAND flash.
>> > (2) Hook-up all the low level functions to fill MTD structures.
>> > (3) Then I'd given the command to create block device
>> > #mknod -m 777 /dev/mtdblock0 b 31 0
>> > (4) #mkdir /mnt
>> > (5) #mount -t yaffs2 /dev/mtdblock0 /mnt
>> > (6) In /mnt folder i can see lost+found
>> > (7) While trying to create directory or file could see the following
>> error
>> > "*yaffs tragedy: no more eraased blocks*"
>> >
>> > On doing the # cat /proc/yaffs can see the below results, *nErasedBlocks
>> > *is zero.
>> > startBlock......... 0
>> > endBlock........... 15
>> > chunkGroupBits..... 0
>> > chunkGroupSize..... 1
>> > nErasedBlocks...... 0
>> > nTnodesCreated..... 100
>> > nFreeTnodes........ 100
>> > nObjectsCreated.... 200
>> > nFreeObjects....... 96
>> > nFreeChunks........ 0
>> > 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..... 2
>> > nBackgroudDeletions 0
>> > useNANDECC......... 1
>> > isYaffs2........... 1
>> >
>> > Please let me know, is this the problem with low level driver or I am
>> > missing something else.
>> >
>> > Thanks in advance.
>> >
>> > Regards,
>> > Saquib Herman
>> >
>> > On Mon, Jan 18, 2010 at 10:39 PM, Charles Manning
>> >
>> > <manningc2@actrix.gen.nz>wrote:
>> > > You still have not explained what steps you took.
>> > >
>> > > You don't need to fdisk or anything like that. Just erase the flash
>> > > first.
>> > >
>> > > It is also important to turn on all the tracing you can when you start
>> > > out. Read:http://www.yaffs.net/yaffs-debugging
>> > >
>> > > echo 0xffffffff > /proc/yaffs
>> > >
>> > > Also read
>> > >
>> http://www.aleph1.co.uk/lurker/message/20090826.015413.14594671.en.htmlfo
>> > >r a general approach.
>> > >
>> > > On Tuesday 19 January 2010 01:53:48 Saquib wrote:
>> > > > Hi All,
>> > > >
>> > > > Thanks for continued support and cooperation.
>> > > >
>> > > > We have created partition on NAND flash and able to mount one of the
>> > > > directory to that partition.
>> > > >
>> > > > Issue is when we are trying to create a directory/file on mounted
>> > > > folder, getting the following errors.
>> > > >
>> > > > *"yaffs tragedy: no more erased blocks"*
>> > > > *mkdir: can not create a directory 'temp' : Cannot allocate memory*
>> > > >
>> > > >
>> > > > Where temp is a directory/file name we are trying to create. We are
>> not
>> > > > doing "fdisk" before doing the mounting.
>> > > >
>> > > > Thanks in advance..
>> > > >
>> > > > Regards,
>> > > > Saquib Herman
>> > > >
>> > > > On Thu, Jan 14, 2010 at 4:10 AM, Charles Manning
>> > >
>> > > <manningc2@actrix.gen.nz>wrote:
>> > > > > On Wednesday 13 January 2010 20:10:27 Saquib wrote:
>> > > > > > Hi All,
>> > > > > >
>> > > > > > I am using the YAFFS for the linux 2.16.21 version. I am facing
>> > > > > > some problem.
>> > > > > >
>> > > > > > I am able to list my YAFFS and YAFFS2 file system in
>> > >
>> > > /proc/filesystems
>> > >
>> > > > > and
>> > > > >
>> > > > > > also created three partitions.
>> > > > > >
>> > > > > > But the problem is. I am not able to mount these partition on
>> any
>> > > > > > of the folders by using mount command. Let me know what may the
>> > > > > > issue.
>> > > > >
>> > > > > You need to give some examples of the commands you are using and
>> the
>> > > > > errors you are getting.
>> > > > >
>> > > > > > One more query is do we need to do a format before mounting the
>> > > > >
>> > > > > partition.
>> > > > >
>> > > > > No.
>> > > > >
>> > > > > Charles
>> > > > >
>> > > > > _______________________________________________
>> > > > > yaffs mailing list
>> > > > > yaffs@lists.aleph1.co.uk
>> > > > > http://lists.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs
>> > >
>> > > _______________________________________________
>> > > yaffs mailing list
>> > > yaffs@lists.aleph1.co.uk
>> > > http://lists.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs
>>
>>
>>
>> _______________________________________________
>> yaffs mailing list
>> yaffs@lists.aleph1.co.uk
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>>
>
>
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