-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 11/15/2014 12:20 PM, Rasmus Liland wrote: > On 2014-11-15 15:21, LoneVVolf wrote: >> On 15-11-14 06:57, Rasmus Liland wrote: >>> On 2014-11-15 06:10, Mark Lee wrote: >>>> On 11/14/2014 10:29 PM, Rasmus Liland wrote: >>>>> On 2014-11-15 04:01, Mark Lee wrote: >>>>>> Are you booting with the new intel u-code? >>>>> Are you fairly sure this is a Intel microcode issue? >>>> I'm not completely certain; but it would make sense. I'd test >>>> it out. >>> Thank you for your help thus far. I'll examine this further >>> tomorrow, g'night. >> From rasmus first post: >>> I'm experiencing machine check exceptions since every kernel >>> after package linux-3.11.5-1 (Oct 14 2013) >> New intel microcode was only introduced with kernel 3.17 ... It's >> unlikely to have to do with this issue. >> >> install mcelog, run it as the log tells you and post the result. > Thank you for your new, important thoughts. I put the lines in a > file called mce.log. > > rasmus@angrist ~ % cat mce.log [19367.116196] mce: [Hardware > Error]: CPU 1: Machine Check Exception: 5 Bank 4: b200000000100402 > [19367.116202] mce: [Hardware Error]: RIP !INEXACT! > 33:<00007f8b4934c8b7> [19367.116205] mce: [Hardware Error]: TSC > 2824672b8e7 [19367.116211] mce: [Hardware Error]: PROCESSOR 0:306a9 > TIME 14010118857 SOCKET 0 APIC 1 microcode 12 rasmus@angrist ~ % > sudo mcelog --ascii < mce.log mce: [Hardware Error]: CPU 1: Machine > Check Exception: 5 Bank 4: b200000000100402 mce: [Hardware Error]: > RIP !INEXACT! 33:<00007f8b4934c8b7> mce: [Hardware Error]: TSC > 2824672b8e7 mce: [Hardware Error]: PROCESSOR 0:306a9 TIME > 14010118857 SOCKET 0 APIC 1 microcode 12 > > I never did use the mcelog tool before, but to me it looks like not > much of an analysis, perhaps I'm doing it wrong. > To Rasmus, Looks like a microcode error, please try to add the intel-ucode to your kernel cmdline. Regards, Mark -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlRnjRcACgkQZ/Z80n6+J/YGTgD/dUHzUH1Q9Lj144tZmXQ/xlzt ICxbu0YUp9ryAGK81I0A/Ao/dyrBV0/3fgg5PBm8/EZnG6EyCcrWSRSVFW3uDow2 =Cnxt -----END PGP SIGNATURE-----