it's /dev/shm that's triggering as "suspicious": Message-ID: <20140513005940.30413.65861.reportbug at schumann.anu.edu.au> X-Mailer: reportbug 6.5.0 Date: Tue, 13 May 2014 10:59:40 +1000 Warning: Suspicious file types found in /dev: /dev/shm/pulse-shm-1963598897: data /dev/shm/mono.4102: data /dev/shm/pulse-shm-4256995607: data Is it normal for these kinds of files to trigger a warning?