tiomap-dev team mailing list archive

[warmcat <988181@xxxxxxxxxxxxxxxxxx>]

This "tilt-tracking blob" thing actually is tilt-tracking of today, or
old 3.2-based kernel?

Either way I have not seen this, but we are too poor for class 10 cards,
just using class 4, maybe it only manifests itself at some higher rate
on the bus.  Unfortunately I can't see a way down /sys to dump the rate.

Can you give me the details of manufacturer and name, size of a card
showing problems and I'll see if I can get one.

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https://bugs.launchpad.net/bugs/988181

Title:
  Panda : i/o errors observed during sdcard write operations

Status in Linaro Android:
  New
Status in Linaro Texas Instruments Landing Team:
  Invalid

Bug description:
  Description:
  ============

  Error messages are thrown randomly while sd card write operations are in progress.
  Example: while downloading a apk file , it gets saved to /mnt/sdcard/Download location and at the same time following messages are observed on serial console(logcat running)

  Logs
  ----------------
  [  222.739685] mmcblk0: error -110 transferring data, sector 1843234, nr 6, cmd response 0x900, card status 0xc00
  [  222.751525] end_request: I/O error, dev mmcblk0, sector 1843235
  [  222.751525] Buffer I/O error on device mmcblk0p5, logical block 1
  [  222.751525] lost page write due to I/O error on mmcblk0p5
  [  222.770111] end_request: I/O error, dev mmcblk0, sector 1843236
  [  222.770111] Buffer I/O error on device mmcblk0p5, logical block 2
  [  222.776428] lost page write due to I/O error on mmcblk0p5
  [  222.776428] end_request: I/O error, dev mmcblk0, sector 1843238
  [  222.794952] Buffer I/O error on device mmcblk0p5, logical block 3
  [  222.794952] lost page write due to I/O error on mmcblk0p5

  Didn't see impact of this on file getting downloaded.

  Reproducible:
  ===========
   3/5 times

  Impact:
  ======
  Not sure. Didn't see download failure.

  Steps to reproduce issue:
  ==========
  Precondition: Device connected to wifi AP with internet connection
  1. Bootup DUT , wifi connection active
  2. Download an apk file using browser, eg: http://people.linaro.org/~abhishekpaliwal/DisableSuspend.apk
  Observation: During download error messages are seen, download finishes successfully 
  Expected: Serial console should be accessible even if DUT goes to suspend mode.

  Hardware:
  ==========
  Pandaboard: 4430 /4460
  HDMI Out to TV - via HDMI cable
  4 GB SD card

  Software:
  ==========
  https://android-build.linaro.org/builds/~linaro-android/panda-ics-gcc47-tilt-tracking-blob-12.04-release/#build=4

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