[Yaffs] Re: Re: Re: Re: can't see files after umount

Thu Dec 22 13:30:23 GMT 2005

Here is the information, which was asked. I hope it will help. Please, let 
me know if you need any other debug info.

1) the beginning text from MTD boot screen which should depict the bad 
block markers that have been detected
(MTD Debug was turned on)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 47MB = 47MB total
Memory: 45584KB available (1573K code, 375K data, 80K init)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
NetWinder Floating Point Emulator V0.97 (double precision)
devfs: 2004-01-31 Richard Gooch (rgooch at atnf.csiro.au)
devfs: boot_options: 0x0
yaffs Dec 22 2005 15:54:34 Installing.
Serial: M825xx1 driver $Revision: 1.1.2.1.2.1 $
ttyS0 at MMIO 0x10090000 (irq = 41) is a M825xx1
io scheduler noop registered
loop: loaded (max 8 devices)
nbd: registered device at major 43
smi_memory_phy = a10000
Phy->storage: 0xcce4a0
Virt->storage: 0xf0cce4a0
NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 
3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 0 at 0x00000000
Bad eraseblock 32 at 0x00400000
Bad eraseblock 33 at 0x00420000
Bad eraseblock 34 at 0x00440000
Bad eraseblock 35 at 0x00460000
............
long list
............
Bad eraseblock 435 at 0x03660000
Bad eraseblock 437 at 0x036a0000
Creating 4 MTD partitions on "NAND 128MiB 3,3V 8-bit":
0x00000000-0x00200000 : "MSP boot partition"
mtd: Giving out device 0 to MSP boot partition
0x00200000-0x00400000 : "Linux boot partition"
mtd: Giving out device 1 to Linux boot partition
0x00400000-0x03600000 : "Comcerto Filesystem partition"
mtd: Giving out device 2 to Comcerto Filesystem partition
0x03600000-0x06800000 : "Comcerto Filesystem partition2"
mtd: Giving out device 3 to Comcerto Filesystem partition2

2) the result of mounting yaffs partiton.
#
# mount -t yaffs2 /dev/mtdblock3 /mnt/y
yaffs: dev is 32505859 name is "mtdblock3"
yaffs: Attempting MTD mount on 31.3, "mtdblock3"
block 1 is bad
block 2 is bad
block 3 is bad
block 4 is bad
block 6 is bad
nand_read_ecc: Failed ECC read, page 0x00006d01
nand_read_ecc: Failed ECC read, page 0x00006d01
#

2.5) some more info about the copy results
# 
# rm /mnt/y/*
rm: cannot remove `/mnt/y/lost+found': Is a directory
#
# cp mytest /mnt/y
#
# cp mkyaffs2 /mnt/y
#
# cp nandwrite /mnt/y
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
!!!!!!!!
#
# ls -l /mnt/y
total 62
drw-rw-rw-  1 root root  2048 Jan  1 00:03 lost+found
-rwxr-xr-x  1 root root 10765 Jan  1 00:08 mkyaffs2
-rw-r--r--  1 root root  8240 Jan  1 00:08 mytest
-rwxr-xr-x  1 root root 40724 Jan  1 00:09 nandwrite
#
# cp yaffs2small.img /mnt/y
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
....
lot of messages
....
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
cp: writing `/mnt/y/yaffs2small.img': Operation not permitted
yaffs tragedy: no more eraased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
#
# ls -l /mnt/y
total 272
drw-rw-rw-  1 root root   2048 Jan  1 00:03 lost+found
-rwxr-xr-x  1 root root  10765 Jan  1 00:08 mkyaffs2
-rw-r--r--  1 root root   8240 Jan  1 00:08 mytest
-rwxr-xr-x  1 root root  40724 Jan  1 00:09 nandwrite
-rw-r--r--  1 root root 215040 Jan  1 00:13 yaffs2small.img
#

3) the output of /proc/yaffs file
# vi /prov/yaffs
YAFFS built:Dec 22 2005 15:54:34
$Id: yaffs_fs.c,v 1.38 2005/12/15 20:27:56 charles Exp $
$Id: yaffs_guts.c,v 1.25 2005/12/08 00:51:15 charles Exp $

Device 0 "Comcerto Filesystem partition"
startBlock......... 0
endBlock........... 399
chunkGroupBits..... 0
chunkGroupSize..... 1
nErasedBlocks...... 0
nTnodesCreated..... 0
nFreeTnodes........ 0
nObjectsCreated.... 100
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..... 0
nBackgroudDeletions 0
useNANDECC......... 1
isYaffs2........... 1

Device 1 "Comcerto Filesystem partition2"
startBlock......... 0
endBlock........... 399
chunkGroupBits..... 0
chunkGroupSize..... 1
nErasedBlocks...... 0
nTnodesCreated..... 100
nFreeTnodes........ 90
nObjectsCreated.... 100
nFreeObjects....... 89
nFreeChunks........ 25194
nPageWrites........ 0
nPageReads......... 0
nBlockErasures..... 8
nGCCopies.......... 493
garbageCollections. 8
passiveGCs......... 0
nRetriedWrites..... 0
nRetireBlocks...... 0
eccFixed........... 0
eccUnfixed......... 0
tagsEccFixed....... 0
tagsEccUnfixed..... 0
cacheHits.......... 0
nDeletedFiles...... 2
nUnlinkedFiles..... 4
nBackgroudDeletions 0
B
useNANDECC......... 1
iBsYaffs2........... 1

Thank you,
        Yuri Golovach
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