This bug is awaiting verification that the linux-
nvidia-6.11/6.11.0-1004.4 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-noble-linux-nvidia-6.11' to
'verification-done-noble-linux-n
This bug was fixed in the package linux - 6.8.0-55.57
---
linux (6.8.0-55.57) noble; urgency=medium
* noble/linux: 6.8.0-55.57 -proposed tracker (LP: #2097981)
* python perf module missing in realtime kernel (LP: #2089411)
- [Packaging] linux-tools: Add missing python perf sy
This bug was fixed in the package linux - 6.11.0-19.19
---
linux (6.11.0-19.19) oracular; urgency=medium
* oracular/linux: 6.11.0-19.19 -proposed tracker (LP: #2098000)
* python perf module missing in realtime kernel (LP: #2089411)
- [Packaging] linux-tools: Add missing pytho
The azure package doesn't provide the perf python library, so no wonder
it's not working. I don't know why the package maintainer doesn't have
this enabled...
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There seems to be an issue with azure. But this bug is about realtime.
It works with both the generic and the realtime kernels:
ubuntu@ubuntu-noble:~$ uname -a
Linux ubuntu-noble 6.8.1-1018-realtime #19-Ubuntu SMP PREEMPT_RT Mon Feb 24
20:13:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ubunt
Looks like the symlink described in 1ecc312721 (/usr/lib/linux-
tools/6.8.0-1023-azure/lib -> /usr/lib/linux-azure-tools-6.8.0-1023/lib)
doesn't exist with package linux-tools-6.8.0-1023-azure, likely because
the link's target doesn't exist. I checked the corresponding links in
linux-realtime-tools
** Tags removed: verification-done-noble-linux
** Tags added: verification-failed-noble-linux
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https://bugs.launchpad.net/bugs/2089411
Title:
python perf module missing in realtime kern
Thanks Manuel; unfortunately the generic kernel is not affected by this
bug, only the variants (aws, azure, realtime, etc), so we can't verify
with linux-generic.
I don't have permission to access the packages for the RT kernel in the
Noble ppa [1] (linked from [2]) but this bug/fix applies to all
$ uname -a
Linux cloudimg 6.8.0-56-generic #58-Ubuntu SMP PREEMPT_DYNAMIC Fri Feb 14
15:33:28 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
$ python3 -c 'import perf; [print(c) for c in perf.cpu_map()]'
0
1
2
3
4
5
6
7
$
** Tags removed: verification-needed-noble-linux
** Tags added: verification-done-
All set, thanks.
```
wesley@oracular2:~$ uname -a
Linux oracular2 6.11.0-1006-realtime #6-Ubuntu SMP PREEMPT_RT Mon Feb 17
15:51:31 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
wesley@oracular2:~$ python3 -c 'import perf; [print(c) for c in perf.cpu_map()]'
0
```
** Tags removed: verification-failed-
This is because you still have the old broken wrapper installed. The
wrapper is provided by linux-tools-common from the main kernel (not
realtime). You must upgrade that package as well.
$ apt install linux-tools-common
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This bug is awaiting verification that the linux/6.8.0-56.58 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-noble-linux' to 'verification-done-noble-linux'. If
the problem still exist
** Tags removed: verification-needed-oracular-linux
** Tags added: verification-failed-oracular-linux
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Title:
python perf module missing in realt
Hi, I'm still seeing this bug with 6.11.0-1006-realtime, which should
contain the patch [1] (thanks for the help Juerg)
```
wesley@oracular2:~$ uname -a
Linux oracular2 6.11.0-1006-realtime #6-Ubuntu SMP PREEMPT_RT Mon Feb 17
15:51:31 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
wesley@oracular2:~$ py
This bug is awaiting verification that the linux/6.11.0-19.19 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-oracular-linux' to 'verification-done-oracular-
linux'. If the problem sti
** Changed in: linux (Ubuntu Noble)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Oracular)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Noble)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Oracular)
Importance: Undecided =>
This bug was fixed in the package linux - 6.12.0-12.12
---
linux (6.12.0-12.12) plucky; urgency=medium
* plucky/linux: 6.12.0-12.12 -proposed tracker (LP: #2095505)
* Miscellaneous Ubuntu changes
- [Packaging] temporarily disable signing for s390x
* Miscellaneous upstream
This is fixed in Plucky 6.12.0-7.7 bootstrap kernel:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/bootstrap
** Changed in: linux (Ubuntu Plucky)
Status: Confirmed => Fix Released
** Changed in: linux (Ubuntu Plucky)
Status: Fix Released => Fix Committed
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** Description changed:
+ [Impact]
+
+ ubuntu@ubuntu-plucky:~$ python3 -c 'import perf; [print(c) for c in
perf.cpu_map()]'
+ Traceback (most recent call last):
+ File "", line 1, in
+ File "/usr/lib/python3/dist-packages/perf/__init__.py", line 24, in
+ raise KernelNotFoundError()
+ p
This is just a workaround. I'm working on a proper packaging fix.
> Also, this looks to have not been the root cause to losing network
connection
Well this bug is about the missing perf module, so that's that issue
that is being fixed and tracked with this bug.
If you think there's another (kern
** Also affects: linux-rt (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-rt (Ubuntu Noble)
Importance: Undecided
St
Yes, that worked.
But this is more of a workaround, though, right? What would be a long term fix
for the realtime kernel?
Also, this looks to have not been the root cause to losing network connection
when tuned is running as I still am losing network connectivity but am no
longer seeing the "WAR
The module is there but the wrapper is broken :-(
Can you try this hack:
$ sudo sed -i 's|/linux-tools-|/linux-realtime-tools-|'
/usr/lib/python3/dist-packages/perf/__init__.py
And check if it works now:
$ python3 -c 'import perf; [print(c) for c in perf.cpu_map()]'
0
1
2
3
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