Ubuntu
systemd package

  1. Trusty (14.04)
  2. Bug #1333140
  3. Comment #3

Comment 3 for bug 1333140

Revision history for this message
Alan German (alan-german) wrote :

Multiple timeout errors occur when trying to install Ubuntu 14.10 on an Asus T100 Transformer. These take the form:

Aug 24 13:42:46 Asus-T100TA kernel: [ 517.844809] Buffer I/O error on device mmcblk0rpmb, logical block 16
Aug 24 13:42:54 Asus-T100TA kernel: [ 526.053415] mmc0: Got data interrupt 0x00000002 even though no data operation was in progress.
Aug 24 13:42:54 Asus-T100TA kernel: [ 526.058826] mmcblk0rpmb: error -110 transferring data, sector 16, nr 8, cmd response 0x900, card status 0xb00
Aug 24 13:42:54 Asus-T100TA kernel: [ 526.061891] mmcblk0rpmb: retrying using single block read
Aug 24 13:42:55 Asus-T100TA kernel: [ 526.063938] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
etc.

A workaround takes the form of a kernel patch, developed by Nell Hardcastle (https://dev-nell.com/rpmb-emmc-errors-under-linux.html), that essentially prevents access to the rpmb partition on the T100's eMMC drive and so avoids the timeout issue.

Otherwise, the timeout errors persist once Ubuntu has been installed and result in processing delays.

A permanent fix would be very much appreciated.