From: Kirill Tkhai <tkhai@xxxxxxxxx> Date: Wed, 19 Feb 2014 13:25:38 +0400 > It seems for me it's better to decide the problem not changing protector of tsb like in patch above. > You may get good stack without sun4v_data_access_exception error, which was in the first or second > message. My suspicion is that what happens when we get the data access error is that we sample the tlb batch count as non-zero, preempt, then come back from preemption seeing the tlb batch in a completely different state. And that's what leads to the crash, in the one trace I saw the TSB address passed to tsb_flush() (register %o0) was some garbage like 0x103. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
