[CentOS] Lenovo T460p post 7.4 CR possible problems

Sat Aug 26 18:11:45 UTC 2017
Stephen John Smoogen <smooge at gmail.com>

I have updated my laptop to 7.4 CR this morning and found that there
have been a lot of logs on two fronts for the first time.

1. The kernel has indicated overheating:

[Sat Aug 26 08:58:21 2017] CPU2: Core temperature above threshold, cpu
clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU4: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU6: Core temperature above threshold, cpu
clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU0: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU6: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] mce: [Hardware Error]: Machine check events logged
[Sat Aug 26 08:58:21 2017] CPU2: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] mce: [Hardware Error]: Machine check events logged
[Sat Aug 26 08:58:21 2017] CPU1: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU5: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU3: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU7: Package temperature above threshold,
cpu clock throttled (total events = 1)
[Sat Aug 26 08:58:21 2017] CPU2: Core temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU4: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU1: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU5: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU0: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU6: Core temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU3: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU7: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU6: Package temperature/speed normal
[Sat Aug 26 08:58:21 2017] CPU2: Package temperature/speed normal

This happened when logging into a Cinnamon desktop. The desktop
background would go black when this happened and the fans went to
100%. After two minutes it quieted down. Logging in again with
Cinnamon repeated it. Using the default Gnome desktop does not have
this problem so this is more of a "if you are using Cinnamon you may
run into this."

The second was that the new nouveau driver is very noisy on the
hardware. The message repeats:

Sat Aug 26 13:42:36 2017] nouveau 0000:02:00.0: priv: HUB0: 6013d4
00005700 (1f408200)
[Sat Aug 26 13:42:37 2017] nouveau 0000:02:00.0: priv: HUB0: 10ecc0
ffffffff (1940822c)
[Sat Aug 26 13:42:37 2017] nouveau 0000:02:00.0: DRM: resuming client
object trees...
[Sat Aug 26 13:42:44 2017] nouveau 0000:02:00.0: DRM: evicting buffers...
[Sat Aug 26 13:42:44 2017] nouveau 0000:02:00.0: DRM: waiting for
kernel channels to go idle...
[Sat Aug 26 13:42:44 2017] nouveau 0000:02:00.0: DRM: suspending
client object trees...
[Sat Aug 26 13:42:44 2017] nouveau 0000:02:00.0: DRM: suspending
kernel object tree...
[Sat Aug 26 13:42:45 2017] nouveau 0000:02:00.0: DRM: resuming kernel
object tree...
[Sat Aug 26 13:42:45 2017] nouveau 0000:02:00.0: priv: HUB0: 6013d4
ffff57ff (18408200)
[Sat Aug 26 13:42:45 2017] nouveau 0000:02:00.0: priv: HUB0: 10ecc0
ffffffff (1840822c)
[Sat Aug 26 13:42:45 2017] nouveau 0000:02:00.0: DRM: resuming client
object trees...

fairly often. The system does seem to be running hotter with the fan
going louder than what i remember it being with 7.3. At this point I
am mostly reporting this as a "anyone else seeing this?" type report.





-- 
Stephen J Smoogen.