Excerpt from the logs:
[ RUN ] BackgroundTransceiverTest.Asynchronous
[FATAL:weak_ptr.cc(20)] Check failed: sequence_checker_.CalledOnValidSequencedThread() || HasOneRef(). WeakPtrs must be invalidated on the same sequenced thread.
/var/cache/portage/chromeos-base/trunks/out/Default/trunks_testrunner(backtrace+0x61) [0x55ebec9ddd31]
/usr/lib64/libbase-core-395517.so(_ZN4base5debug10StackTraceC1Ev+0x13) [0x7f44b8244783]
Leaving this as P3 as I observed this only on my machine, and the frequency is pretty low (perhaps 5-10%).
Comment 1 by apronin@chromium.org
, Oct 12