From: Frederic Weisbecker <fweisbec@xxxxxxxxx> Date: Mon, 5 Apr 2010 08:57:04 +0200 > It seems to happen after an unaligned access fixup. You shouldn't be getting the unaligned fixup in the first place, especially in the locations where you see them. I suspect that once you see first fixup, all of the registers in the cpu have been corrupted in one way or another. I suspect something fundamental gets corrupted, for example the current register window (%cwp) is corrupted and that screws up all of the registers so every single function starts accessing garbage. My suspicions lie in three places, the ftrace mcount() stubs, stack_trace_flush(), or the new perf_arch_save_caller_regs() since those are the three places offhand that could make us potentially make us return to function in the wrong register window. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
