[#3960] When generate a file into ext2 fs on one specific SD card on BF548-EZKIT, there will be data transferring error

Submitted By: Vivi Li

Open Date

2008-03-06 04:55:45

Priority:

Very Low Assignee:

Nobody

Status:

Open Fixed In Release:

N/A

Found In Release:

2008R1-RC8 Release:

Category:

N/A Board:

N/A

Processor:

BF548 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

N/A

Uboot version or rev.:

Toolchain version or rev.:

08r1-8

App binary format:

N/A

Summary: When generate a file into ext2 fs on one specific SD card on BF548-EZKIT, there will be data transferring error

Details:

When generate a file on SD card through SDIOMMC port on BF548-EZKIT, there will be data transferring error 2.

No such error message for MMC card.

Below is the log:

root:/> echo 100 > /proc/sys/vm/pagecache_ratio

root:/> mount -t ext2 /dev/mmcblk0p1 /mnt/

root:/> umount /mnt/

root:/> mount -t ext2 -o sync /dev/mmcblk0p1 /mnt/

root:/> time dd if=/dev/zero of=/mnt/10.bin bs=1M count=10

mmcblk0: error 2 transferring data

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8201

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8208

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8213

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8215

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8218

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8221

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8229

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8237

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8240

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8245

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8247

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8250

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8253

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8261

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8269

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8272

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8277

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8279

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8282

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8285

EXT2-fs error (device mmcblk0p1): ext2_new_block: Allocating block in system zone - block = 8321

mmcblk0: error 2 transferring data

10+0 records in

10+0 records out

real 0m 29.67s

user 0m 0.00s

sys 0m 0.76s

root:/>

Follow-ups

--- Vivi Li 2008-03-06 05:00:43

This error message "mmcblk0: error 2 transferring data" only appears

for ext2 fs.

--- Cliff Cai 2008-03-17 03:10:11

It's ok on v1.3 BF548.

Cliff

--- Vivi Li 2008-03-19 03:34:40

Now only a 1GB SD card from Transcend still have this problem.

--- Cliff Cai 2008-03-25 23:32:43

The error number means a CRC error.After setting the bus-width to 1 bit the card

can work properly. So maybe you need to test more cards to see if the problem is

caused by sdh or card itself.

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