On 08/07/2012 11:41 AM, Sebastian Andrzej Siewior wrote:
On 08/03/2012 06:29 PM, Oleg Nesterov wrote: For uprobes we never set the bit, we only need it cleared. We get here via int 3 and do_debug() already clears TIF_BLOCKSTEP because the CPU clears the bit in CPU. So both, TIF_BLOCKSTEP and DEBUGCTLMSR_BTF are never set.
Actually I'm, wrong. Syscalls do clear the DEBUGCTLMSR_BTF bit, int3 does not. So yes, we need it after all… Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
