Check that mmiotrace did not lose events due to a buffer filling up. Either
$ grep -i lost mydump.txt
which tells you exactly how many events were lost, or use
$ dmesg
to view your kernel log and look for "mmiotrace has lost events" warning. If
events were lost, the trace is incomplete. You should enlarge the buffers and
try again. Buffers are enlarged by first seeing how large the current buffers
are:
$ cat /sys/kernel/debug/tracing/buffer_size_kb
gives you a number. Approximately double this number and write it back, for
instance:
$ echo 128000 > /sys/kernel/debug/tracing/buffer_size_kb
Then start again from the top.
http:// alinux. tv/Kernel- 2.6.34/ trace/mmiotrace .txt
Check that mmiotrace did not lose events due to a buffer filling up. Either debug/tracing/ buffer_ size_kb debug/tracing/ buffer_ size_kb
$ grep -i lost mydump.txt
which tells you exactly how many events were lost, or use
$ dmesg
to view your kernel log and look for "mmiotrace has lost events" warning. If
events were lost, the trace is incomplete. You should enlarge the buffers and
try again. Buffers are enlarged by first seeing how large the current buffers
are:
$ cat /sys/kernel/
gives you a number. Approximately double this number and write it back, for
instance:
$ echo 128000 > /sys/kernel/
Then start again from the top.