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Hi. I am doing an ldxlb/ldaxlb - stlxlb combo.
But the stlxlb instruction always hangs.
Same happens if I use CASALB for testing.
It's in a Windows driver (ASM required), testing under HyperV.
Mov w14, #1
Ldaxlb w13, [x10]
Cmp xzr, w13
B.ne Retry
Stlxlb w15, w14, [x10] - hang here
WinDBG never reaches the next instruction (I've put a breakpoint there and tried both Step Over, Into and Go)
If it looped I'd kinda get it (not likely), but a hang.. makes no sense.
Any clues?