Originally Posted by abranson

I managed to get some information out of the tablet with perf. It seems to be a driver problem (bcm4330), but I don't have any debug symbols to see any more info. Anyone got any?

Code:

# Overhead          Command                     Shared Object
# ........  ...............  ................................  ...........................................
#
    86.33%          swapper  [bcm4330]                         [k] 0xffffffff820163a6
                    |
                    |--72.96%-- 0xffffffff8265cd72
                    |          0xffffffff8265cec9
                    |          0xffffffff8265d01e
                    |          0xffffffff8200b11e
                    |          0xffffffff820e2bee
                    |          0xffffffff828d7c5f
                    |          0xffffffff83220e8d
                    |          0xffffffff832205e5
                    |          0xffffffff832206ae
                    |
                    |--20.66%-- 0xffffffff8265cd79
                    |          0xffffffff8265cec9
                    |          0xffffffff8265d01e
                    |          0xffffffff8200b11e
                    |          0xffffffff820e2bee
                    |          0xffffffff828d7c5f
                    |          0xffffffff83220e8d
                    |          0xffffffff832205e5
                    |          0xffffffff832206ae
                    |
                    |--1.86%-- 0xffffffff8265cd70
                    |          0xffffffff8265cec9
                    |          0xffffffff8265d01e
                    |          0xffffffff8200b11e
                    |          0xffffffff820e2bee
                    |          0xffffffff828d7c5f
                    |          0xffffffff83220e8d
                    |          0xffffffff832205e5
                    |          0xffffffff832206ae
                    |
                    |--1.85%-- 0xffffffff8265cd7c
                    |          0xffffffff8265cec9
                    |          0xffffffff8265d01e
                    |          0xffffffff8200b11e
                    |          0xffffffff820e2bee
                    |          0xffffffff828d7c5f
                    |          0xffffffff83220e8d
                    |          0xffffffff832205e5
                    |          0xffffffff832206ae
                     --2.67%-- [...]