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System freeze related to "rcu_sched detected stalls on CPUs"
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fredbear5150
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 76

PostPosted: Thu Nov 26, 2015 7:09 pm    Post subject: Reply with quote

Just to add to my previous post, I note the comments about the nouveau driver possibly being the cause.

I should add that with my newly built system, which was running perfectly stable a few months ago under an older kernel, I did replace the radeon card in it then for a nouveau (NVIDIA) card now - so there seems to be a common factor there.

I have just reconfigured the system and put the old ATI card back in, it will be interesting to see if it is now stable. The next couple of hours will tell.
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fredbear5150
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 76

PostPosted: Thu Nov 26, 2015 10:44 pm    Post subject: Reply with quote

Just to confirm that having replaced the NVIDIA card using the nouveau driver with an ATI card using the radeon driver, the system has been up and running and entirely stable for several hours now - it would have crashed out by this time were the original problem still present.

Therefore I think the conclusion that it's a nouveau driver problem is correct. I haven't tried the closed NVIDIA drivers, I don't need to use either those or the closed ATI drivers in my general computing work.

It would be interesting to see what the actual problem is in the nouveau driver that seems to be causing this issue.
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fredbear5150
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 76

PostPosted: Fri Nov 27, 2015 10:39 am    Post subject: Reply with quote

My final post on the issue but just to confirm that I left the PC doing an "rsync" overnight from a NAS drive to its local hard disk and it was still happily running this morning - with the NVIDIA card it would have definitely have crashed, this is the longest time the PC has been up since the recent rebuild.
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TigerJr
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Joined: 19 Jun 2007
Posts: 504
Location: /dev/x0

PostPosted: Wed Dec 02, 2015 1:38 pm    Post subject: Reply with quote

What kernel are you use before 4.1.12 version?
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Do not update portage without hotdog!

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