[Bug 103351] Machine check exception on Broadwell quad-core with SpeedStep enabled

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=103351

Ziyue Yang <yzylivezh@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |yzylivezh@hotmail.com

--- Comment #3 from Ziyue Yang <yzylivezh@hotmail.com> ---
(In reply to Kristóf Marussy from comment #1)
> I managed to get a stable system by booting with the processor.max_cstate=0
> intel_idle.max_cstate=0 idle=poll and SpeedStep enabled. However, if I set
> idle=halt or idle=nomwait instead, the MCEs remain.
> 
> 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 that 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 and ended
up in BSODs saying "MACHINE_CHECK_EXCEPTIONS". 
I then tried to use debian in VMware at runlevel=3. It seems to be stable. I
don't know why. 

I'm going to try your way to get a stable system. Will reply if anything new
discovered.

-- 
You are receiving this mail because:
You are the assignee for the bug.