[resend in text mode] Hi Bjorn and All, I ran into this error message when testing with my X-Gene Mustang board (on kernel 4.9-rc1): pcieport 0002:00:00.0: AER: Corrected error received: id=0000 pcieport 0002:00:00.0: can't find device of ID0000 Looking into aer_isr() code, in case of handling correctable AER event, handle_error_source() will be called and it will clear Correctable Error Status Register of the device that reports AER event. This operation may end up clearing the status bit of the new (and same type) correctable AER event that happen when this aer_isr worker thread is still running; and cause the next aer_isr worker thread find no error status bit get set, so it prints out the above warning messages. I can see a possible solution is we cache all AER status registers of both the root port and all of its end-point devices inside interrupt handler (aer_irq) and pass these information to the aer_isr worker thread. But it seems an expensive operation to be done in interrupt context and I am not sure if you've already encountered and thought about this issue before? Regards, Duc Dang. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
