From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 103351] Machine check exception on Broadwell quad-core with
SpeedStep enabled
Date: Mon, 31 Aug 2015 05:55:00 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=3D103351
Ziyue Yang changed:
What |Removed |Added
-----------------------------------------------------------------------=
-----
CC| |yzylivezh@hotmail.com
--- Comment #3 from Ziyue Yang ---
(In reply to Krist=C3=B3f Marussy from comment #1)
> I managed to get a stable system by booting with the processor.max_cs=
tate=3D0
> intel_idle.max_cstate=3D0 idle=3Dpoll and SpeedStep enabled. However,=
if I set
> idle=3Dhalt or idle=3Dnomwait instead, the MCEs remain.
>=20
> In Windows, the Performance monitor displays that the system utilizes
> C-states that are claimed to be C1, C2 and C3; so it is quite odd tha=
t C1
> halt in Linux triggers an MCE...
Same problem here with MSI GE62 2QE Apache Pro.
I tried both debian8.1 and Ubuntu15.04 on the real machine and received=
same
kernel panics. Updating kernels to 4.2 doesn't help.
I also tried those two systems in VMware workstation under Windows 10 a=
nd ended
up in BSODs saying "MACHINE_CHECK_EXCEPTIONS".=20
I then tried to use debian in VMware at runlevel=3D3. It seems to be st=
able. I
don't know why.=20
I'm going to try your way to get a stable system. Will reply if anythin=
g new
discovered.
--=20
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