libtbb segfault on second attempt in boost::thread on ARM/aarch64

edit

I am having problems with OpenCV 3.3.1 on ARM. I have arrived at the following minimal example:

(snip includes)

void cvtTest() {
  cv::Mat imgTmp = cv::Mat(1200,1920, CV_16UC1, cv::Scalar(1));
  cv::Mat imgTmp2 = cv::Mat(1200,1920, CV_8UC3, cv::Scalar(0));
  cvtColor(imgTmp, imgTmp2, cv::COLOR_BayerBG2BGR);
}

int main(int argc, char* argv[])
{
  cout << "Start function call test" << endl;
  cvtTest();
  cout << "First done" << endl;
  cvtTest();
  cout << "Second done" << endl;

  cout << "Start boost::thread test" << endl;
  boost::thread* test1 = new boost::thread(cvtTest);
  test1->join();
  cout << "First done" << endl;
  boost::thread* test2 = new boost::thread(cvtTest);
  test2->join();
  cout << "Second done" << endl;
  [...]

this prints:

Start function call test
First done
Second done
Start boost::thread test
First done
[27069.712978] grabber[3369]: unhandled level 0 translation fault (11) at 0xfffffffffffffff7, esr 0x92000004
[27069.722563] pgd = ffff80096cb0c000
[27069.725958] [fffffffffffffff7] *pgd=00000009ed434003[27069.730751] , *pud=00000009ec966003
, *pmd=0000000000000000[27069.736243] 
[27069.737726] 
[27069.739219] CPU: 1 PID: 3369 Comm: grabber Not tainted 4.9.35+gb226445 #1
[27069.746009] Hardware name: LS1046A RDB Board (DT)
[27069.750714] task: ffff80096dd14f40 task.stack: ffff80096cad4000
[27069.756638] PC is at 0xffffa7454dd4
[27069.760127] LR is at 0xffffa7454ef0
[27069.763613] pc : [<0000ffffa7454dd4>] lr : [<0000ffffa7454ef0>] pstate: 80000000
[27069.771011] sp : 0000ffffa707f840
[27069.774321] x29: 0000ffffa707f840 x28: 0000ffffa707fde8 
[27069.779639] x27: 000000000000077e x26: 0000ffffa707fd28 
[27069.784956] x25: 0000ffffa707f980 x24: 0000000000000023 
[27069.790275] x23: 0000000000000000 x22: 0000ffffa707f988 
[27069.795592] x21: 0000ffffa7477568 x20: 0000000000000000 
[27069.800909] x19: 0000ffffa5e0be00 x18: 0000000000000030 
[27069.806229] x17: 0000ffffa7f5d380 x16: 0000ffffa5eca0d8 
[27069.811548] x15: 0000000000000000 x14: 0000000000000027 
[27069.816897] x13: 006b636174735f68 x12: 637461775f737472 
[27069.822216] x11: ffffffffffff7fff x10: 0000000000003fff 
[27069.827536] x9 : 0000000000000001 x8 : 0000ffffa5e08000 
[27069.832852] x7 : 0000000000000000 x6 : 0000000000000000 
[27069.838169] x5 : 00000000ba5703f5 x4 : 0000000000000001 
[27069.843489] x3 : 0000000000000000 x2 : ffffffffffffffff 
[27069.848804] x1 : 0000ffffa5e0beb0 x0 : ffffffffffffffff 
[27069.854120] 
Segmentation fault

or with valgrind:

(snip lots of Conditional jump or move depends on uninitialised value(s) )
First done
Second done
Start boost::thread test
First done
==3348== Thread 5:
==3348== Invalid read of size 8
==3348==    at 0x5BECDD4: ??? (in /usr/lib/libtbb.so.2)
==3348==    by 0x5BECEEF: ??? (in /usr/lib/libtbb.so.2)
==3348==    by 0x5BEE953: ??? (in /usr/lib/libtbb.so.2)
==3348==    by 0x5BED067: ??? (in /usr/lib/libtbb.so.2)
==3348==    by 0x5BE7FCB: ??? (in /usr/lib/libtbb.so.2)
==3348==    by 0x5BE610B: tbb::internal::allocate_root_with_context_proxy::allocate(unsigned long) const (in /usr/lib/libtbb.so.2)
==3348==    by 0x4994FEF: cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double) (in /usr/lib/libopencv_core.so.3.3.0)
==3348==    by 0x4B69B07: cv::demosaicing(cv::_InputArray const&, cv::_OutputArray const&, int, int) (in /usr/lib/libopencv_imgproc.so.3.3.0)
==3348==    by 0x4B3BBFB: cv::cvtColor(cv::_InputArray const&, cv::_OutputArray const&, int, int) (in /usr/lib/libopencv_imgproc.so.3.3.0)
==3348==    by 0x5E0A13: cvtTest() (in /usr/bin/grabber)
==3348==    by 0x508E15F: ??? (in /usr/lib/libboost_thread.so.1.64.0)
==3348==    by 0x50CEF47: ??? (in /lib/libpthread-2.26.so)
==3348==  Address 0xfffffffffffffff7 is not ...