dmesg from failed test on Firestone
** Attachment added: "dmesg1"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4723529/+files/dmesg1
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Out of the 4 tests last night (Habanero(NV), Firstone(NV), Tuleta(NV),
Alpine(VM) only the Firestone failed. Attached is the output from the
test, kern.log and dmesg output I was running in a while loop during
testing.
** Attachment added: "FAIL-2016-08-18-03-25-32.log"
https://bugs.launchpad.
kern.log from failed test on Firestone
** Attachment added: "FAIL-2016-08-18-03-25-32.kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4723528/+files/FAIL-2016-08-18-03-25-32.kern.log
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These logs are something I've not seen here in my testing. This shows
that we are stuck doing an up_write() on root->rwsem in the anon_vma
path. It looks like we are contending on the rwsem's sem->wait_lock. I
don't have a reproduction of this issue, it will be interesting to
examine what is causin
kern.log from the Habanero 4.4.0-34-generic-53~lp1573062PATCHED test
** Attachment added: "FAIL-2016-08-17-17-49-41.kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4723089/+files/FAIL-2016-08-17-17-49-41.kern.log
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kern.log from the Firestone 4.4.0-34-generic-53~lp1573062PATCHED test
** Attachment added: "FAIL-2016-08-17-17-12-46.kern.log.tar.gz"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4723091/+files/FAIL-2016-08-17-17-12-46.kern.log.tar.gz
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This is a failed test from today on the Firestone. Find the test output
and kern.log attached:
ubuntu@gulpin:~/4.4.0-34-generic-53~lp1573062PATCHED$ free -m
totalusedfree shared buff/cache available
Mem: 32565 342 30092 21
This is a failed test from today on the Habanero. Find the test output
and kern.log attached:
ubuntu@binacle:~/4.4.0-34-generic-53~lp1573062PATCHED$ free -m
totalusedfree shared buff/cache available
Mem: 261533 621 259912 20
I am unable to reproduce the failure either, but your system with 32G
and 128 threads seems like the test would start 128 hogs each hogging up
32GB. How much swap do you have on them? Could you post the dmesg to see
what failed and the logs around it? It looks like the stack stressor
failed.
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Y
Kalpana:
The above failed test was run on only 1 of the possible 4 machines we
have been testing with for months now. The other openpower server is a
Habanero with 256G. I am running tests on that as we speak and going to
include the kern.log as well.
Just to clarify, the memory test I'm running
I have been trying to recreate this issue on my Haba-LC system and not able to
do so.
The difference I see in total memory installed on my system against your system
i.e 32Gig.
Total memory is 256 GiB -> my Haba-LC.
Constant run time is 300 seconds per stressor
Variab
I had this fail on 2 openpower boxes. I have attached the output from
the test.
** Attachment added: "4.4.0-34-generic-53~lp1573062PATCHED.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4722751/+files/4.4.0-34-generic-53~lp1573062PATCHED.log
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I have had 5 successful runs so far with below kernel. however I keep
see OOM call traces.
root@ltc-haba1:~/log# uname -a
Linux ltc-haba1 4.4.0-34-generic #53~lp1573062PATCHED SMP Wed Aug 10 23:59:53
UTC 2016 ppc64le ppc64le ppc64le GNU/Linux
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
The test kernel in comment #103 did not have the oom_reaper patches.
It only had the fix you posted.
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Title:
memory_stress_ng fail
Can I quickly check if the oom_reaper patches are there in the built
kernel or is it just the fix I posted?
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Title:
memory_stress_ng
Had several other runs of success. I would like to see runs from others
as well.
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Title:
memory_stress_ng failing for IBM Power S812
At my end, I ran two runs with success. More runs in progress
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for
Also note, with this test kernel you have to install both the linux-
image and linux-image-extra .deb packages.
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Title:
memory_stres
The test kernel is now available in the same location:
http://kernel.ubuntu.com/~jsalisbury/lp1573062/
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Title:
memory_stress_ng fail
Sorry I built arm64. I'll build ppc64el now.
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in
I just looked at the directory and I can find just the arm64 kernel.
Could you please confirm if I am looking at the right thing and at the
right place?
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Balbir,
Both Mike and Joe are out the rest of this week on holiday. Any chance
you could give this kernel a spin?
Michael
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I built a Xenial test kernel with the latest patch posted to mm by
balbirs. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062/
@Mike, can you test this kernel when you have a chance?
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Output of 4.7 mainline kernel testing failure
** Attachment added: "4.7.0-040700-generic-201607241632.log from 4.7 testing
failure"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4708872/+files/4.7.0-040700-generic-201607241632.log
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mainline kernel 4.7 failed.
** Attachment added: "kern.log from 4.7 testing failure"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4708871/+files/kern.log
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The bisect was stopped because the first good kernel was found to
actually be bad. We can restart the bisect if we can find a good and
bad kernel again.
@Mike, could you test the v4.7 kernel and see if the bug is fixed in it?
It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainli
I cloned kamal's repository and built a test kernel. The test kernel
can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062/
balbirs and Mike, can you test this kernel and see if it still exhibits
the bug?
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Thanks for the update. I'll clone the source as well and rebuild the
binaries for testing.
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Title:
memory_stress_ng failing for IBM
@balbirs, are you saying the repo you cloned from
https://git.launchpad.net/~kamalmostafa/ubuntu/+source/linux/+git/xenial/log/?h=lp1573062
differs from your diffs?
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@balbirs, would it be possible for you to send the individual .patch
files, so I can apply them with "git am"? That will confirm we are
using the same code base.
You can generate them with something like:
'git format-patch -k HEAD~10'
Change the number '10' to the number of commits you added wi
** Tags removed: kernel-key
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Attached is the kern.log from the Firestone PowerNV server. This one is
failing with stack traces which only started after we started testing
patched kernels.
The Habanero PowerNV failed with the typical locked up console and
OOM's.
** Attachment added: "kern.log"
https://bugs.launchpad.net/u
I'm running the tests as we speak across 2 LPAR's and 2 openpower
PowerNV installations. One of the open power boxes has 256G of memory so
it takes up to 7 hours for a test to pass or to be determined failed.
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It looks like there are conflicting test results with the
4.4.0-32-generic-51~lp1573062.1 test kernel.
@balbirs, can you confirm the test was run enough times to reproduce the
bug?
@Mike Rushton, can you confirm that you can make the test fail multiple
times with that kernel?
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4.4.0-32-generic-51~lp1573062.1 failed.
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux
Per comment #74, I've now also added
af8e15cc85a253155fdcea707588bf6ddfc0be2e ("oom, oom_reaper: do not
enqueue task if it is on the oom_reaper_list head") to the test kernel
and source branch.
Xenial (4.4.0-32.51~lp1573062.1) ppc64el test kernel:
http://people.canonical.com/~kamal/lp1573062/lp
Xenial (4.4.0-32.51~lp1573062) ppc64el test kernel comprised of
4.4.0-31.50 plus the changes from balbirs' comment #72's
oom_reaper_4.4.diff*:
http://people.canonical.com/~kamal/lp1573062/
*The source branch for that test kernel, with the original mainline
commits (and LKML patch) split back
Hi,
Joe is away this week and we'd like to keep this bug moving forward.
Based on comment #70, we'd like to build a new test kernel to try
internally. However, we want to ensure we've applied the exact same
changes/patches as noted in comment #70. Could we be pointed at a git
repo with the patch
kern.log attached to show additional failures with patched kernel
** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573062/+attachment/4698878/+files/kern.log
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I built a Xenial test kernel[0] with the fix[1] suggested in comment
#64. The fix was mentioned upstream[2].
That particular patch has not landed in mainline yet, but it was also
cc'd to stable for all 4.4+ kernels.
This commit can be added as a SAUCE patch if we find that it resolves
this bug,
** No longer affects: linux (Ubuntu Wily)
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in lin
Sorry the 14.04 should be 16.04 in comment #61
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status i
I have 14.04 installed with 4.4.0-28 and I can see the following
In the bad case
1. OOM'ing of stress-ng-brk is slow, I can see it making progress -- see tasks
being scheduled/console output and sysrq output on Ctrl-o h
2. stress-ng-brk is trying to make progress in OOM, but is heavily contenti
I built the next test kernel, up to the following commit:
698f415cf5756e320623bdb015a600945743377c
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
Commit failed:
4f1b50c3e3082b31c94cee2b897bd9f5d0f3e7c8
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
I built the next test kernel, up to the following commit:
4f1b50c3e3082b31c94cee2b897bd9f5d0f3e7c8
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
Commit failed:
ddc8f6feec76b5deea8090db015920a283006044
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
I built the next test kernel, up to the following commit:
ddc8f6feec76b5deea8090db015920a283006044
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
Commit failed:
ee61e95b6b33c82f6fa1382585faed66aa01245
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
The memory_stress_ng test is part of the plainbox-provider-checkbox
package which can be installed from the hardware-certification PPA:
https://code.launchpad.net/~hardware-
certification/+archive/ubuntu/public
The full path once installed is:
/usr/lib/plainbox-provider-checkbox/bin/memory_stress
Can we get answer to #38. If we have the test that caused the failure we
will try to reproduce here.
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Title:
memory_stress_ng failin
I built the next test kernel, up to the following commit:
5ee61e95b6b33c82f6fa1382585faed66aa01245
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
Thanks.
I see very little left between good and bad which could explain the bug
going away. So I'm wondering if the bisect has gone off the rails.
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Commit failed:
89f081730c49a1d3b46359aa0054e6b3b80f47e4
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Current "REVERSE" bisect log:
git bisect start
# good: [b562e44f507e863c6792946e4e1b1449fbbac85d] Linux 4.5
git bisect good b562e44f507e863c6792946e4e1b1449fbbac85d
# bad: [f55532a0c0b8bb6148f4e07853b876ef73bc69ca] Linux 4.6-rc1
git bisect bad f55532a0c0b8bb6148f4e07853b876ef73bc69ca
# good: [6b5f
Can you post the latest bisect log?
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux pac
895a1067d5b83065afbad3bb02c3c464b71f1b3f failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status
I built the next test kernel, up to the following commit:
895a1067d5b83065afbad3bb02c3c464b71f1b3f
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
d9dddbf556674bf125ecd925b24e43a5cf2a568a failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status
I built the next test kernel, up to the following commit:
d9dddbf556674bf125ecd925b24e43a5cf2a568a
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
45996492e5c85aa0ac93a95d1b2d1ed56851c865 failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status
I built the next test kernel, up to the following commit:
45996492e5c85aa0ac93a95d1b2d1ed56851c865
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
Here is the current bisect log(This is a "Reverse" bisect so good means
bad and vice versa):
git bisect start
# good: [b562e44f507e863c6792946e4e1b1449fbbac85d] Linux 4.5
git bisect good b562e44f507e863c6792946e4e1b1449fbbac85d
# bad: [f55532a0c0b8bb6148f4e07853b876ef73bc69ca] Linux 4.6-rc1
git bi
8f40842e4260f73792c156aded004197a19135ee failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status
Can you please post the bisection log using upstream commit ids.
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) f
I built the next test kernel, up to the following commit:
8f40842e4260f73792c156aded004197a19135ee
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
4.5.0-040500-generic-201605251558 failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linu
I built the next test kernel, up to the following commit:
5a010c73cdb760c9bdf37b28824b6566789cc005
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
PASS,2016-05-23-13-21-37,4.5.0-040500-generic-201605230752
FAIL,2016-05-23-21-06-07,4.5.0-040500-generic-201605230752
PASS,2016-05-24-04-32-39,4.5.0-040500-generic-201605230752
FAIL,2016-05-24-13-31-01,4.5.0-040500-generic-201605230752
FAIL,2016-05-25-04-06-51,4.5.0-040500-generic-201605230752
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** Tags removed: severity-critical
** Tags added: severity-high
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) fo
** Tags added: architecture-ppc64le bugnameltc-141723 severity-critical
targetmilestone-inin16041
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Title:
memory_stress_ng failing f
I built the next test kernel, up to the following commit:
2e11590171683c6b12193fe4b0ede1e6201b7f45
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
4.5.0-040500.201605171117 failed
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux packag
Sorry we should actually test the kernel in comment #28. This is
because we are performing a "Reverse" bisect and not a regular bisect.
The test kernel is available from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
The .deb file name is:
linux-image-4.5.0-040500-generic_4.5.0-040500.201605171
I reset the bisect and built the first test kernel, up to the following commit:
96b9b1c95660d4bc5510c5d798d3817ae9f0b391
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next
Commit 6b5f04b6cf8ebab9a65d9c0026c650bb2538fd0f was actually bad. So
the test kernel in comment #28 is invalid. I'll re-update the bisect
and build the next kernel.
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https:/
I built the next test kernel, up to the following commit:
53d2e6976bd4042672ed7b90dfbf4b31635b7dcf
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on y
I would go ahead and assume it's good. I haven't had 2 tests run good
twice in a row yet.
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Title:
memory_stress_ng failing for IBM P
Thanks for the update, Mike. If you think the two test runs are enough
to prove that kernel is good, I'll build the next one. Otherwise, I'll
wait for the results of the third run.
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So far, after 2 runs, 4.5.0-040500-generic_4.5.0-040500.201605161244
seems to be working. I'm running it a 3rd time now just to be sure. It
takes about 7 hours to finish.
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htt
Testing now...
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux package in Ubuntu:
In
I started a "Reverse" kernel bisect between v4.5 final and v4.6-rc1. The
kernel bisect will require testing of about 10-12 test kernels.
I built the first test kernel, up to the following commit:
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1573062
Can you test
** Tags removed: kernel-da-key
** Tags added: kernel-key
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
4.5.0-040500.201603140130_ppc64el - fail
4.6.0-040600rc1.201603261930_ppc64el - pass
4.6 was run twice and passed both times.
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Title:
I have noticed only on the Alpine hardware within an LPAR that is has
been sporadic. I assume that is due to the additional hardware resources
that can better handle the memory/stress test. All other tests have been
2 or 3 times each. More more than that. I can run the above kernel
tests, but mind
I'd like to chip in with my $0.02 worth. This may be a sporadic hang,
so it may be worth double checking each bisection point in case it's a
bug that may be a little more racy than we'd like.
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That is good news that the bug is fixed in mainline. We can perform a
reverse bisect and find the commit that fixes this. We first need to
narrow down which version fixes the issue. Can you test the following
kernels next:
v4.5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/
v4.6-rc1
Ubuntu 14.04
3.19.0-58-generic - pass
4.2.0-35-generic - fails
4.1.0-040100-generic - fail
4.6.0-040600rc6-generic - pass
Ubuntu 16.04
4.4.0-22-generic - fail
4.1.0-040100-generic - fail
4.6.0-040600rc6-generic - pass
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Can you test the 4.1 kernel next? It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-wily/
We may also want to test the latest mainline kernel to see if this bug
is already fixed there. If it is, we can perform a "Reverse" bisect to
find the fix. The mainline kernel
Confirmed the above kernel fails in the same manner.
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
St
Mike - Wily was the first release to support ppc64el -
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-wily/linux-
image-4.2.0-040200-generic_4.2.0-040200.201510260713_ppc64el.deb
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Are there ppc64le versions of those kernels?
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.
Can you test the following kernels and report back? We are looking for
the first kerne
** Tags added: kernel-key
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux package in Ub
The tests run manually above were NOT run as root. The test during
certification does run as root. I have run the test as root and as the
ubuntu user, both with the same results.
Also, as shown above, this test ran fine manually while running Ubuntu
14.04 without root and during proper certificati
Ahah, perhaps one should examine the stress-ng manual:
"Running stress-ng with root privileges will adjust out of memory
settings on Linux systems to make the stressors unkillable in low memory
situations, so use this judiciously. "
We may be just being a bit too demanding...
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It should be run as root.
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16.04
Status in linux package in Ub
Is this being run as a normal user or with root privileges?
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Title:
memory_stress_ng failing for IBM Power S812LC(TN71-BP012) for 16
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