Hi, I'm trying to get debugging details about NMI I receive from an unknown source. My hardware setup contains some uncommon cards (pcie switch, fpga, 10g nics...) and only produce within unknown circomstances. To make setup worse, these systems are RHEL 3.10 kernel, so I would need to use a module. I wrote a generic nmi handler (https://github.com/Saruspete/nmimgr) for this, waiting for kernel upstream. Ideally, I would like to know from which bus / pci address / slot... it came from, but I don't know x86 well enough. From docs I found, some information might be in the lapic, but I'm unable to find implementation details about it on the kernel / what functions to use. I can't use "show_regs" function, as it's not exported (any idea why ?), and it might not contain useful pci information. Do you have any insights / code to get maximum debug information about an NMI ? the most useful would be to display the equipment that generated this NMI. Thanks for your help. Adrien. -- To unsubscribe from this list: send the line "unsubscribe linux-x86_64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
