Hi on UP system, if we call cli(), then after that what all interrupts can occur ? Does the timer interrupt also get blocked when we call cli() ? I read that, cli() disables all non-maskable interrupts. Thanks -hiren - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/