On Wed, 8 Nov 2017 16:43:17 -0800 Patrick McLean <chutzpah@xxxxxxxxxx> wrote: > As of 4.13.11 (and also with 4.14-rc) we have an issue where when > serving nfs4 sometimes we get the following BUG. When this bug happens, > it usually also causes the motherboard to no longer POST until we > externally re-flash the BIOS (using the BMC web interface). If a > motherboard does not have an external way to flash the BIOS, this would > brick the hardware. If that is a production x86 system then you need to raise a large red flag with the vendor because it should not even be possible to splat the BIOS firmware on a modern PC by running even malicious OS code. Not only that but if it has a flaw, and you bisect down to create a reproducer then it's not going to take the bad guys very long to turn it into an interesting toy to run if they ever exploit a box with that board. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
