hi,
I use yaffs(the latest cvs from aleph1) on linux-2.4.21 with backported
mtd(mtd20040705).there is no problem on the first mount.but it seems
like lost data when i umount it then remount it.here is my log:
1)reset and system run
2)flash_eraseall /dev/mtd/0 &&insmod yaffs.o
3)mount -t yaffs /dev/mtdblock/0 ./yaffs_mnt
4)/yaffs/yaffs_mnt # cp /home/www/rtc_ds1337.o ./
5)/yaffs/yaffs_mnt # ls -l
drw-rw-rw- 1 root root 512 Jan 1 04:23 lost+found
-rw-r--r-- 1 root root 10745 Jan 1 04:22 rtc_ds1337.o
6)/yaffs/yaffs_mnt # insmod rtc_ds1337.o
Using rtc_ds1337.o
7)/yaffs # umount yaffs_mnt/
mtdblock_release
ok
8)/yaffs # mount -t yaffs /dev/mtdblock/0 ./yaffs_mnt/
mtdblock_open
ok
yaffs: Attempting MTD mount on 31.0, "1f:00"
9)/yaffs/yaffs_mnt # ls -l
drw-rw-rw- 1 root root 512 Jan 1 04:23 lost+found
-rw-r--r-- 1 root root 10745 Jan 1 04:22 rtc_ds1337.o
***you will see the file size is the same as 5)
10)/yaffs/yaffs_mnt # insmod rtc_ds1337.o
Using rtc_ds1337.o
pc : [<4014b5b4>] lr : [<00043888>] Not tainted
sp : bfffd768 ip : bfffd7e4 fp : bfffd7e0
r10: bfffd9f8 r9 : 00000009 r8 : 000a5df8
r7 : 00000000 r6 : 001b63b8 r5 : 001b6f48 r4 : 001b6c48
r3 : 00000000 r2 : 00000009 r1 : 000a5df8 r0 : 00000000
Flags: nzCv IRQs on FIQs on Mode USER_32 Segment user
Control: C000717F Table: 05F90000 DAC: 00000015
Segmentation fault
i have do as this for times ,it has the same result! so i do consider
it lose data when umount it.any body can give me some hints?
thanks!
JianZhang
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