It's possible that this bug is related to (or a duplicate of) this bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680904
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Here's a similar, older bug:
https://bugzilla.redhat.com/show_bug.cgi?id=879801 , workarounds
included there, see comments 13, 14, 15.
** Bug watch added: Red Hat Bugzilla #879801
https://bugzilla.redhat.com/show_bug.cgi?id=879801
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Running kernel -21 from the general repo I managed to grab the attached
output of 'top'. khugepaged going 100%, staying there forever. System
load eventually went up to 8 or more. System didn't freeze entirely,
just slowed down a lot.
** Attachment added: "top"
Had a freeze with -14, too, after 3 days of operations (hibernating at
night)
That said, it doesn't exactly look like there's somebody keen on fixing
this bug. Workarounds like adding swap just postpone the problem. And
Ubuntu folks went silent.
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Well, looks like problem is memory management, which can be related to video,
because intel uses system RAM.
During last freeze we logged-in to my colleague computer and seen khugepages
eating cpu-
there was no swap on this computer, so we added it and today there was no
freezes ,
@Traumflug, no, I just installed the following two .debs from
https://launchpad.net/~canonical-kernel-
team/+archive/ubuntu/ppa/+build/12033595 and booted into that kernel:
- linux-image-4.10.0-9-generic_4.10.0-9.11_amd64.deb
- linux-image-extra-4.10.0-9-generic_4.10.0-9.11_amd64.deb
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Congratulations for managing to get a backtrace, @Jonas Slivka!
Did you run a kernel with debug symbols, perhaps? My kern.log has zero
backtraces, despite at least 5 freezes.
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Got freeze on -9 as well:
➜ ~ uname -a
Linux dell 4.10.0-9-generic #11-Ubuntu SMP Mon Feb 20 13:47:35 UTC 2017 x86_64
x86_64 x86_64 GNU/Linux
Attaching a portion of kern.log with call trace.
** Attachment added: "Output of kern.log during the freeze"
I'm also experiencing freezes on Ubuntu Gnome 17.04 (x64). I'm on dell
Latitude E5470 with the following specs:
Intel® Core™ i5-6440HQ CPU @ 2.60GHz × 4
Intel® HD Graphics 530 (Skylake GT2)
Tried -20, -17, -14 kernels - all experiencing complete freezes. Now
I've been on -9 for a day without
Just had kind of a freeze with -17 after about two hours of operation.
While other freezes so far manifested in the cursor vanishing and
everything becoming unresponsive, this freeze resulted in single
applications freezing on input attempts. Like freezing after opening a
menu and selecting
Just had a kernel freeze after some 20 hours of operation with -18:
$ uname -a
Linux piccard 4.10.0-18-generic #20-Ubuntu SMP Wed Apr 5 17:18:34 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux
Will now try -17 to confirm sles' findings and also to have a working
kernel until somebody has an idea on
Right. Missing video hardware acceleration (and missing audio, ACPI) was
due to the kernel extras package not installed. Corrected this situation
and now giving 4.10.0-18 another try.
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I just booted 4.10.0-18 and graphics apparently fell back to software
rendering. Only one screen size (1600x1200) available, animations run
very slow, CPU fan spins up when moving windows, such things.
Will run this for two days to see wether it's at least not freezing.
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4.10.0-17 should be OK too- my colleague tests all kernels- we run the same
hardware except video- I have nvidia card. I forgot to ask him about results,
but he didn't complain, so it should be fine.
Really, it looks very strange, because I don't see any video related changes
from 17 to 20 in
Can you next test 4.10.0-17:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/12396981
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Title:
17.04, i915
There is no problem in 4.10.0-14 .
What should we test now?
Thank you!
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Title:
17.04, i915 freeze on VGA compatible controller:
I'll give -9 an additional day to be sure. If you want to continue,
4.10.0-14 is the next candidate.
https://launchpad.net/~canonical-kernel-
team/+archive/ubuntu/ppa/+build/12139078
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4.10.0-9 works without problems for several hours here.
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Title:
17.04, i915 freeze on VGA compatible controller: Intel Corporation
Thanks for the hint, 4.10.0-9 now running.
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Title:
17.04, i915 freeze on VGA compatible controller: Intel Corporation
Xeon
If upstream 4.10 works, but Ubuntu 4.10.0-19 does not, then that
indicates the bug was introduced by an Ubuntu specific SAUCE patch.
We should bisect the Ubuntu kernels. We need to identify the last good
Ubuntu kernel and the first bad one. We know that 4.10.0-19 is bad, so
we should test some
4.10.0 from mainline works fine here. Running it for two days now
without flaws.
$ uname -a
Linux piccard 4.10.0-041000-generic #201702191831 SMP Sun Feb 19 23:33:19 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
Hmm. 4.10.0 from mainline works, 4.10.0(.19) from the regular repo does not.
Now I'm
>Continuing with the bisect is much appreciated!
This is what we are doing , right? :-)
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Title:
17.04, i915 freeze on VGA
> Kernel 4.10.0.19 from the regular 17.04 repo appears to work fine
Too bad, this was a false positive. Today this kernel froze, too.
Firefox became a zombie () twice.
@sles, finding a working kernel is certainly good help for the moment,
but not really a solution. Think of all the people not
Hello!
It can be strange, but we can't reproduce freeze using kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10/
Thank you!
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Kernel 4.10.0.19 from the regular 17.04 repo appears to work fine,
working for some 12 hours now. It's slightly different than the one
@Vaclav Rehak reported above as not working:
$ uname -a
Linux piccard 4.10.0-19-generic #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux
A few additional debugging bits:
- Here this typically happens when watching video. As if some memory
region gets exhausted after viewing some 100'000 frames.
- I've seen the mouse freezing once, typically it stays movable.
- Audio continues while video freezes.
- I've seen Firefox going (in
Can you test 4.10 final? If it has the bug, we can bisect between v4.10
and v4.11-rc1.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10/
** Tags added: performing-bisect
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Hello!
rc1 looks good, no freezes for several hours.
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Title:
17.04, i915 freeze on VGA compatible controller: Intel Corporation
Yes, sure, but , most probably next week, sorry.
If rc1 hangs then we'll try rc2, etc..
Thank you!
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Title:
17.04, i915 freeze on
I'd like to perform a reverse bisect to figure out which commit upstream
fixes this regression. It would be very helpful to know the last kernel
that had this issue and the first kernel that did not.
Can you test the following kernels and report back:
Tested kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc7
Runs fine, at least no freezes for 6 hours.
Thank you!
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-fixed-upstream
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I'm running 16.04 with xenial-proposed enabled and I'm experiencing
random freezes like this a few times a day since kernel upgrade about
two weeks ago.
$ uname -a
Linux vaclav-ntb 4.10.0-19-generic #21~16.04.1-Ubuntu SMP Fri Apr 7 08:20:02
UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
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Yes, right after upgrade to 17.04 from 16.10.
We'll test mainline kernel and report.
Thank you!
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Title:
17.04, i915 freeze on VGA
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.11
using kernel from 16.10 while using 17.04 userspace solves problem.
i.e. this is kernel bug.
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Title:
17.04, i915 freeze on VGA
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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