application crash - assert_fail in malloc

[andrewz]

Crash is repeatable when code uses 4 threads, but appears to run when 1 thread is used. Crash appears to be in Haiku malloc(), not in application code.

Reproduceable crash with scene 3 Debug information for team /boot/home/downloads/BeTracer (6293): CPU(s): 4x Intel Core i5 Memory: 3.80 GiB total, 406.92 MiB used Haiku revision: hrev49974 Jan 3 2016 18:43:35 (BePC)

Active Threads: thread 6293: BeTracer (main) thread 6297: w>BeTracer thread 6311: name thread 6312: name thread 6313: name thread 6315: team 6293 debug task thread 6314: name state: Call (getNumAvailable() == 0)

Frame IP Function Name 0x7983f368 0x812a31 debugger + 0x31 0x7983f388 0x820193 assert_fail + 0x43 0x7983f3a8 0x8118cf /boot/system/lib/x86/libroot.so + 0x268cf 0x7983f3e0 0x898a26 BPrivate::hoardHeap::findAvailableSuperblock(int, BPrivate::block*&, BPrivate::processHeap*) + 0x416 0x7983f430 0x896b10 BPrivate::threadHeap::malloc(unsigned long) + 0x70 0x7983f470 0x896e47 malloc + 0xa7 0x7983f490 0x11bda60 operator new(unsigned long) + 0x20 0x7983f4e0 0xb3aa46 CSG::CSGIntersection::texture() + 0xd6 0x7983f530 0xb3a990 CSG::CSGIntersection::texture() + 0x20 0x7983f5a0 0xb4684b LightRay::shoot(float&) + 0x11b 0x7983f630 0xb488e6 Texture::enlightLight(LightRay&, CameraRay const&) const + 0x36 0x7983f6c0 0xb4a2ed PointLight::enlight(CameraRay const&, Texture const*, InsideList*) const + 0x4d 0x7983f7c0 0xb45f8f Scene::intersectRec(CameraRay&) + 0x12f 0x7983f7f0 0xb4648c Scene::intersect(CameraRay&) + 0x2c 0x7983f890 0xb399cf CameraPerspective::evaluateAt(Vector3 const&) const + 0x12f 0x7983f940 0xb44852 RenderThread::Run() + 0x1a2 0x7983f960 0xb44c3c ThreadPrimitive::RunBinder(void*) + 0xc 0x7983f988 0x818e79 thread_entry + 0x19 00000000 0x60d70250 commpage_thread_exit + 0