--- Comment From heinz-werner_se...@de.ibm.com 2019-10-14 07:24 EDT---
IBM Bugzilla status-> closed, Fix Released with Eoan
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Title:
perf
--- Comment From heinz-werner_se...@de.ibm.com 2019-08-22 09:10 EDT---
@Can: Verification done by IBM. Please work on the integration... Many thx in
advance
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--- Comment From klaus.theur...@de.ibm.com 2019-08-22 09:02 EDT---
I talked to Thomas Richter and we agreed that his test is covering all aspects.
So we can go ahead to bring this into the distros
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--- Comment From tmri...@de.ibm.com 2019-08-20 02:40 EDT---
I have installed kernel and perf tool. Now it works ok. I ran the perf top
command for nearly 20 Minutes
and generated a good workload. No core dump and OOM messages anymore.
I could not reprodure the error and I used the same sy
--- Comment From tmri...@de.ibm.com 2019-08-12 02:14 EDT---
The patches have been picked up by the perf maintainer and are now upstream in
the linux kernel v5.3-rc4
b9c0a64 perf annotate: Fix s390 gap between kernel end and module start
12a6d29 perf record: Fix module size on s390
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--- Comment From tmri...@de.ibm.com 2019-07-22 05:04 EDT---
During execution of command 'perf top' the error message:
Not enough memory for annotating '__irf_end' symbol!)
is emitted from this call sequence:
__cmd_top
perf_top__mmap_read
perf_top__mmap_read_idx
perf_event__process_sample
--- Comment From tmri...@de.ibm.com 2019-07-19 07:37 EDT---
Thanks for your help.
I have installed
root@s8360046:~/linux-4.15.0/tools/perf# uname -a
Linux s8360046 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:54:05 UTC 2019
s390x s390x s390x GNU/Linux
root@s8360046:~/linux-4.15.0/tools/
--- Comment From tmri...@de.ibm.com 2019-07-18 03:46 EDT---
I have this /etc/apt/sources.list file with the following deb-src lines
root@s8360046:~# fgrep bionic /etc/apt/sources.list | fgrep deb-src
deb-src http://us.ports.ubuntu.com/ubuntu-ports bionic main restricted
deb-src http://us.p
--- Comment From mbri...@us.ibm.com 2019-07-17 11:24 EDT---
(In reply to comment #45)
> How can I get the source code of the kernel tree iand the perf tool?
>
> I have tried this command and it did not get the sources:
>
> root@s8360046:~# uname -r
> 4.15.0-55-generic
> root@s8360046:~# apt
--- Comment From tmri...@de.ibm.com 2019-07-17 11:06 EDT---
How can I get the source code of the kernel tree iand the perf tool?
I have tried this command and it did not get the sources:
root@s8360046:~# uname -r
4.15.0-55-generic
root@s8360046:~# apt-get source linux-image-$(uname -r)
Re
--- Comment From klaus.theur...@de.ibm.com 2019-07-17 04:49 EDT---
from LoZ and ZaaS performance point of view we need perf for root to analyze
system behavior
--- Comment From tmri...@de.ibm.com 2019-07-17 04:55 EDT---
All the developer for perf on s390 I would like to investage
--- Comment From klaus.theur...@de.ibm.com 2019-07-16 08:52 EDT---
ran tests on m3545035. ubuntu 18.02 with latest updates. Recreated the problem
first (Not enough memory for annotating '__irf_end' symbol! and a hang) with
perf top and a workload. Installed provided packages, reboot to
--- Comment From tmri...@de.ibm.com 2019-07-05 07:48 EDT---
I have tried to last 2 days to find a patch series to apply the required patch
which failed above.
The difference between upstream linux kernel 5.2.0rc7 and the ubuntu
18.04 kernel I downloaded from
url = git://kernel.ubuntu.com/
--- Comment From tmri...@de.ibm.com 2019-06-04 04:14 EDT---
> Since you mentioned three patches in comment #18 I assume the 3rd one became
> obsolete?
Yes.
> Is it correct that:
> edeb0c90df3581b821a764052d185df985f8b8dc
> "perf tools: Stop fallbacking to kallsyms for vdso symbols lookup"
--- Comment From tmri...@de.ibm.com 2019-06-04 02:52 EDT---
Two patches are now upstream and available in Linux 5.2-rc3:
commit 6738028dd57df064b969d8392c943ef3b3ae705d
("perf record: Fix s390 missing module symbol and warning for non-root users")
commit ed9adb2035b5be5896d465b19040262be
--- Comment From tmri...@de.ibm.com 2019-05-24 08:19 EDT---
I have debugged this issue and created three patches. Two have been accepted
by the perf maintainer
and the third is currently under review.
Once the patches are upstream I will post the commit id's for further
processing by Ubu
--- Comment From tmri...@de.ibm.com 2019-05-14 08:35 EDT---
I have debugged this issue Klaus reported.
I have installed the following system:
root@s8360046:~/linux/tools/perf# uname -a
Linux s8360046 4.18.0-17-generic #18-Ubuntu SMP Wed Mar 13 14:29:38 UTC 2019
s390x s390x s390x GNU/Linux
--- Comment From klaus.theur...@de.ibm.com 2019-05-13 11:48 EDT---
thanks, now I got the perf binary back.
I still see
Not enough memory for annotating '__irf_end' symbol!
though
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--- Comment From klaus.theur...@de.ibm.com 2019-05-10 03:06 EDT---
sure ... and this package does not have the perf binary included
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Title:
--- Comment From klaus.theur...@de.ibm.com 2019-05-09 11:05 EDT---
using perf from package recommended by Frank Heimes results in:
root@m3545035:/home/theurich/people.canonical.com/~ksouza/lp1828166/bionic/tmp/usr/bin#
./perf
WARNING: perf not found for kernel 4.15.0-49
You may need to in
--- Comment From klaus.theur...@de.ibm.com 2019-05-09 08:59 EDT---
ok, I go the image with 18.04 and could recreate the problem.
Then I installed all packages with apt install ./package-name and did a reboot
to activate the new kernel.
Questions:
- perf (binary) is no longer available via
--- Comment From klaus.theur...@de.ibm.com 2019-05-09 03:53 EDT---
Talked to Thomas Richter for a fresh Ubuntu 18.04 where we can test the
provided changes, he will provide this image later today (tessia). I can't use
the image where I found this issue for this test.
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--- Comment From epa...@de.ibm.com 2019-05-08 03:52 EDT---
(In reply to comment #11)
> Hence, this needs to land in bionic (and cosmic) - disco (and eoan) kernels
> are already > 4.20
Bionic aka 18.04 LTS should be priority
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