Bcc: Cut a new release

[bobrik]

While working on #1728 I found that some APIs changed since the last release. We should probably cut another release to allow people to hack on tools easily.

Examples of errors I'm facing:

Traceback (most recent call last):
  File "/tmp/runqslower.py", line 213, in <module>
    is_support_raw_tp = BPF.support_raw_tracepoint()
AttributeError: type object 'BPF' has no attribute 'support_raw_tracepoint'

Traceback (most recent call last):
  File "/tmp/runqslower.py", line 261, in <module>
    b.perf_buffer_poll()
AttributeError: 'BPF' object has no attribute 'perf_buffer_poll'

cc @yonghong-song, @drzaeus77, @palmtenor

[palmtenor]

@brendangregg

[rushabh268]

To add to the list, here is a error that I'm seeing:

```root@test2:~/bcc/examples/tracing# ./trace_fields.py
Traceback (most recent call last):
File "./trace_fields.py", line 19, in
b.attach_kprobe(event=b.get_syscall_fnname("clone"), fn_name="hello")
AttributeError: 'BPF' object has no attribute 'get_syscall_fnname'

root@test2:~/bcc/examples/tracing# ./trace_perf_output.py
Traceback (most recent call last):
File "./trace_perf_output.py", line 43, in
event_name = b.get_syscall_fnname("clone")
AttributeError: 'BPF' object has no attribute 'get_syscall_fnname'

root@test2:~/bcc/examples/tracing# ./hello_perf_output.py
Traceback (most recent call last):
File "./hello_perf_output.py", line 35, in
b.attach_kprobe(event=b.get_syscall_fnname("clone"), fn_name="hello")
AttributeError: 'BPF' object has no attribute 'get_syscall_fnname'
```

[myllynen]

Just wanted kindly to check is there any sort of rough estimate for the release date of the next release yet? There seems to be some Python 3 fixes in the master since 0.5.0 as well so a new release would be nice in that sense as well. Thanks.

[drzaeus77]

I'm hoping to enable a Fedora 28 buildbot in the next day or two, and will tag a release after that. Hopefully by the end of the week.

[myllynen]

This is wonderful news, thanks for letting us know!

[drzaeus77]

Hi, just to update, I've fixed a few of the Fedora 28 issues and am working on the last one, so the tag hasn't been created yet but shouldn't be much longer.

[yonghong-song]

@drzaeus77 Just wandering what is the progress on the new release? Any help you need?

[drzaeus77]

v0.6.0 is tagged and packages published. Unfortunately, fedora 28 support is not included.

[bobrik]

Apt packages seem to only have 0.5.0 in the index:

$ curl -s https://repo.iovisor.org/apt/xenial/dists/xenial/main/binary-amd64/Packages | grep ^Version
Version: 0.5.0-1
Version: 0.5.0-1
Version: 0.5.0-1
Version: 0.5.0-1
Version: 0.5.0-1

Actual deb files are there, it's just index that is out of date:

Can you regenerate the index?

[yonghong-song]

cc @drzaeus77

[drzaeus77]

It is updated now.

[bobrik]

Thanks!

[Lakshmipathi]

On Fedora 28, I still see error like AttributeError: 'BPF' object has no attribute 'get_syscall_fnname' Fixes not yet available F28?

[palmtenor]

Is that because https://repo.iovisor.org/yum/{nightly|main}/ doesn't have a f28 subfolder yet?

[changchengx]

Hit below error on ubuntu 18.04 which isn't hit on ubuntu 16.04:
'BPF' object has no attribute 'get_syscall_fnname'
On ubuntu 18.04, I find that bcc version is 0.5.0
On ubuntu 16.04, bcc module version is 0.6.0

However, I failed to install 0.6.0 bcc python module with below command on ubuntu 18.04. Any suggestion?
sudo pip install --force-reinstall bcc==0.6.0
No matching distribution found for bcc==0.6.0

[yonghong-song]

cc @drzaeus77

[drzaeus77]

The 0.6.1 version is the latest, and only bionic supported version. The following should work for the tagged packages:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys D4284CDD
echo "deb https://repo.iovisor.org/apt/bionic bionic main" | sudo tee /etc/apt/sources.list.d/iovisor.list
sudo apt-get update
sudo apt-get install python-bcc