linux dbgutil tinderbox stuck -> backtrace

[Michael Stahl]

On 31.03.2016 15:23, Noel Grandin wrote:
> 
> 
> On 2016/03/31 3:17 PM, Norbert Thiebaud wrote:
>>
>> What I really wish for is a reliable hard timeout on all these tests.
>>
> 
> Not sure how much it helps, but Java has a built-in thread deadlock detector (which may or may not fire here, since it 
> only detects deadlocks where the locks in question are all Java-level locks)
> 
> I have code that I can contribute that runs a watchdog thread that queries the Java deadlock detector every 2 seconds 
> and kills the program when a deadlock is detected.

hmm... that would help in this particular case, but generally speaking,
this is the first and only java-only deadlock i've ever seen in a test,
usually 2 C++ threads are involved in a deadlock.

> Of course, it may be simpler and safer to simply surround the relevant tests with a brute-force-5-min-timeout-and-kill.

that depends on the build configuration, if you're running the test with
ASAN / valgrind / drmemory the timeout needs to be much longer or disabled.