Hi all, I'm trying to figure out how the OS and disk communicate with each other to handle page faults on x86 full system. I found that PageFault objects are created on page faults, but they are never invoked. In the case of LSQRequest, this seems because PageFault objects have just disappeared due to squashTranslation() (ex, lsq.cc:880). I already figured out how it works in ARM architecture by setting Faults,IdeAll debug flags (interaction is very clear on ARM), but for x86, it seems like PageTableWalker does not send interrupts to CPUs on page faults. Am I missing something? Thank you for your answer in advance. Best regards Youngin Kim