Snowball: Bootup failures observed due to sd card corruption (ICS )

[Abhishek Paliwal]

Description:
==========
Bootup fails sometimes(~2/8 times)
SD card getting corrupt and display show Android text continously and remains stuck.

Logs:
----
[ 45.095458] mmcblk0: retrying using single block read
[ 45.100708] mmcblk0: error -110 sending read/write command, response 0x0, card status 0xc00b00
[ 45.115600] end_request: I/O error, dev mmcblk0, sector 391202
[ 45.121520] mmcblk0: error -110 sending read/write command, response 0x0, card status 0x400b00
[ 45.130157] end_request: I/O error, dev mmcblk0, sector 391203
[ 45.136077] mmcblk0: error -110 sending read/write command, response 0x0, card status 0x400b00
[ 45.144683] end_request: I/O error, dev mmcblk0, sector 391204
[ 45.150573] mmcblk0: error -110 sending read/write command, response 0x0, card status 0x400b00
[ 45.159210] end_request: I/O error, dev mmcblk0, sector 391205

Reproducible:
===========
Yes, 5/5 time

IMPACT:
========
Can't get device to bootup - pretty serious

Steps:
==========
1. Flash image - https://android-build.linaro.org/builds/~linaro-android/staging-snowball-11.12-release/#build=1
2. Bootup device
Issue: Bootup hangs with Android logo shown on screen.

Hardware:
==========
Snowball V5
USB Mouse connected
HDMI out to TV
16GB SD card

Software:
==========
https://android-build.linaro.org/builds/~linaro-android/staging-snowball-11.12-release/#build=1

Logs:
======
Bootup Logs attached.

[Mathieu Poirier (mathieu.poirier-deactivatedaccount)]

I have seen this many times. The solution is usually to change SD card (go to a faster class), re-seat the card in the slot or run the l-a-m-c again.

Right now snowball android builds are using the 3.0 kernel with a brittle mmc/emmc driver. STE is currently working on a 3.1 kernel that has a new and improved driver.

[Anmar Oueja (anmar)]

Sounds like a combination of slow MMC and the card. I suggest we blame the card now until 3.2 is running and then test it again.

[Patrik Klinger (patrik-klinger)]

I guess we are now talking about getting this confirmed on the 3.3 kernel ..

[Thomas Espersson (espersson)]

Importance will be set if confirmed and re-tested with the 3.3 kernel used for 12.03 release, (will be done by Abhishek).

[Abhishek Paliwal (abhishek-paliwal)]

Issue not observed on :
https://android-build.linaro.org/builds/~linaro-android/snowball-ics-gcc46-igloo-stable-blob/#build=224
(Kernel version: Linux-3.3.0+ )

[Abhishek Paliwal (abhishek-paliwal)]

Issue not observed in :
 https://android-build.linaro.org/builds/~linaro-android/snowball-ics-gcc46-igloo-stable-blob-12.03-release/#build=3
and
https://android-build.linaro.org/builds/~linaro-android/snowball-ics-gcc46-igloo-stable-blob/#build=239