From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fredrik_Oestman@mentor.com (Oestman, Fredrik)
Date: Fri, 19 Oct 2012 08:07:41 +0000
Subject: [lttng-dev] Flight-recorder mode
Message-ID: <524C960C5DFC794E82BE548D825F05CF5BC75AB2@EU-MBX-01.mgc.mentorg.com>

Hi,


We use LTTng 2.0 with a limited file system on the target to receive the trace logs:

  Extract of fstab file:
  tmpfs        /dev/shm    tmpfs  size=64M,mode=777,noauto            0   0

When tmpfs is full, trace logs are corrupted. Since it is very difficult to control the tracing to avoid this, we would need a real flight-recorder mode where the files on the disk have a pre-defined (maximum) size and where either discard or overwrite mode can be applied.

Is there such a thing or some other solution to the problem?


Cheers,

Fredrik ?stman

http://go.mentor.com/sourceryanalyzer/