tiomap-dev team mailing list archive

[warmcat <988181@xxxxxxxxxxxxxxxxxx>]

Try a different SD card, sometimes SD cards can have trouble erasing
blocks and later mark it as bad.  That can happen when you depowered the
card while it was privately erasing blocks and later try to use that
block.  I doubt it's to do with kernel since we didn't see anything like
that before or after the version with SGX 1.8 on vanilla.

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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:
  New

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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