Messages in this thread | | | Date | Thu, 29 Mar 2012 11:20:17 -0700 | From | Tim Bird <> | Subject | Re: [RFC] Android Logger vs. Shared Memory FIGHT! |
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On 3/29/2012 10:52 AM, Daniel Walker wrote: > On Thu, Mar 29, 2012 at 09:25:26AM -0700, Tim Bird wrote: >> At the moment, I'm not considering an alternative for logger that runs >> completely in user-space. Having said that, this test is certainly interesting, >> and may provide some performance numbers for logger or alternatives that would >> be useful to compare. > > I was just thinking what does an accurate PID actually get you? If you > looking at some logs with a PID of 20048, does that mean something to > you? It doesn't actually mean much because you can't map that back to > anything. If you have the device, and the process is still running then > you could look it up .. > > So lets say logger was modified to record comm values.. That way you > could record the actual process name AND the pid. Well if you use > prctl(PR_SET_NAME), you can forge comm values. So that doesn't get you > much either.. > > So even if you record accurate PID values, it doesn't mean anything > anyway. Putting bogus pids in the log would allow a log DDOS-er to hide their activity more easily. But with the log in user-space, there are much more insidious things that could be done to hide or corrupt log activity. So the sensitivity of this particular piece of log data is not that great. -- Tim
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