I hit the sleep button on my Galaxy Nexus, but right before I put it in my pocket I felt the phone buzz.<p>I turned it back on to see what it was, and saw that the gmail app had been opened, and was in the process of sending a bug report to Google.<p>Being curious, I inspected the contents of the bug report. It contained a screenshot and a system dump inside a txt file. So far so good, until I noticed the size of the e-mail. Between the two attachments, the e-mail was 7MB.<p>Firing up the 4G radio and sending off 7MB comes at a cost. I have trouble keeping my phone charged all day if I use it a lot. The biggest offender here is the system dump, which is 5MB.<p>A simple solution to this is to throw the bug reports into a queue, and only send them when the phone is plugged in and fully charged.
For what it's worth, I've been recently finding this same thing lately when turning on my Galaxy Nexus' screen. I've searched through these dumps a couple times trying to find what might be causing them, thinking I have a misbehaving app. It's interesting to know that someone else is seeing this.