On Mon, Apr 18, 2016 at 09:52:43PM -0500, Bob Tracy wrote: > 4.6.0-rc4 build complete, including suggested (by Alan Young) "Verbose > Machine Checks" option set to level 2 by default. System rebooted, and > now we wait... Thanks for everyone's continued patience. Within three minutes of rebooting, I got a machine check, but perhaps significantly, no "Oops". I'm guessing the only reason I'm seeing the ECC errors now (haven't seen them before) is because of the stepped-up debug output. Syslog output attached... Machine has been stable since the machine check. Kernel is 4.6.0-rc4. --Bob