All debug messages are logged into RAM buffer, this buffer can be read with the Debug Message Logger.
Note: Currently, Debug Message Logger is supported on PXA (image V4.1 onwards) and Tegra (image V2.1beta2 onwards)
Debug messages are read from the buffer at regular intervals. The interval period is defined by the Refresh Time parameter in the dialog. If the Refresh Time is set to 0 then the buffer will not be refreshed automatically. The Update button can be used to refresh the buffer manually.
Please find the download link for the respective OS to be mentioned below: