FS#11840 - PANIC* SD Xfer read err:0x8 Disk1 with uSD 32GB in Fuze v1

Attached to Project: Rockbox
Opened by Alex Maoin (plion) - Tuesday, 28 December 2010, 12:02 GMT
Last edited by Bertrik Sikken (bertrik) - Monday, 25 April 2011, 14:31 GMT
Task Type Bugs
Category Drivers
Status Closed
Assigned To No-one
Operating System Another
Severity Low
Priority Normal
Reported Version Release 3.7.1
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


In my Fuze sansa V1 0781 74c1 Sansa Fuze (MSC), when I turn on the device, I get a lot of *Panic* always i made something on the sd card.

The error:
SD Xfer read err:0x8 Disk1"

my uSD Card: kingston 32GB microSD HC Class 4
Rockbox 3.7.1 and r28903-101226.

No problem with Sansa software up to 2GB and it is ok on windows xp.
This task depends upon

Closed by  Bertrik Sikken (bertrik)
Monday, 25 April 2011, 14:31 GMT
Reason for closing:  Fixed
Additional comments about closing:  Appears to have been fixed by r29746. See also c=26852 . If not, please request a re-open.
Comment by Bertrik Sikken (bertrik) - Sunday, 17 April 2011, 10:18 GMT
Can you try these patches?

Patch amsv1_sd_normal_speed.patch disables high speed mode. It looks like the command sent to the sd card to enable high-speed mode is not done completely properly.
So if this patch works, we probably know what is causing the problem. This will probably cause the sd card throughput to drop by 50%.

Patch amsv1_cmd6_delay.patch keeps the high-speed mode, but adds a 100 ms delay as a workaround. This will have no impact on the sd card throughput.
Comment by Bertrik Sikken (bertrik) - Wednesday, 20 April 2011, 19:08 GMT
Patch amsv1_cmd6_delay.patch has been committed and fixed usd detection problems for someone else.

Please try the current build and verify that this fixes your problem.
Comment by Seb (seb06) - Monday, 25 April 2011, 12:45 GMT
Confirm current build fixes the issue.
Exact same uSD in my case as well