Crashes have been observed while running the following tests:

make run-test TEST=test/hotspot/jtreg/compiler/jsr292/NullConstantReceiver.java JTREG="VM_OPTIONS=-XX:-UseSIGTRAP -XX:-ImplicitNullChecks"

make run-test TEST=test/hotspot/jtreg/compiler/exceptions/TestLateMHInlineExceptions.java JTREG="VM_OPTIONS=-XX:-UseSIGTRAP -XX:-ImplicitNullChecks"

Extracted from hs_err file:
# SIGSEGV (0xb) at pc=0x00007fee2226b968, pid=3332663, tid=3332690

# V [libjvm.so+0xc6b968] frame::interpreter_frame_method() const+0xb8

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00007fed00004000

V [libjvm.so+0xc6b968] frame::interpreter_frame_method() const+0xb8 (frame.cpp:407)
V [libjvm.so+0xffd8a8] InterpreterRuntime::note_trap(JavaThread*, int)+0x138 (interpreterRuntime.cpp:88)
V [libjvm.so+0xffdd6c] InterpreterRuntime::create_exception(JavaThread*, char*, char*)+0x30c (interpreterRuntime.cpp:380)

NullPointerExceptionTest.java also shows crashes with these flags (SIGSEGV due to missing explicit null check).