Our software is failing QA on a 8 cores/thread system and is hanging in the main thread. The culprit seems to be ddot_direct. No other user threads are running. This is a new problem introduced with the new <D,Z,S,C>dot direct calls.
ntdll.dll!NtWaitForSingleObject() + 0xa bytes
KernelBase.dll!WaitForSingleObjectEx() + 0x9c bytes
libiomp5md.dll!__kmp_suspend_64() + 0x1c0 bytes
libiomp5md.dll!__kmp_barrier() + 0x32d0 bytes
libiomp5md.dll!__kmp_join_barrier() + 0x5fe bytes
libiomp5md.dll!__kmp_join_call() + 0xf1 bytes
libiomp5md.dll!__kmpc_fork_call() + 0x76 bytes
mkl_intel_thread.dll!000007fed54250c3()
[Frames below may be incorrect and/or missing, no symbols loaded for mkl_intel_thread.dll]
mkl_intel_thread.dll!000007fed539a8ba()
ddot_direct() + 0x74 bytes