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Description of problem:
When the net plugin is set to scan devices and apply net queues configuration
it can throw an unhandeld exception if the device has a combined channel with the n/a value.
Version-Release number of selected component (if applicable):
OCP: 4.8.0-fc.9
CoreOS 8.4 GA
kernel-core 4.18.0 305.3.1.el8_4
How reproducible:
Always
Steps to Reproduce:
1. on an environment that has a non virtual net device
create a tuned profile with net plugin set:
[net]
channels=combined 1
2. apply the profile
Actual results:
An unhandled exception is thrown:
2021-06-16 13:30:21,578 ERROR tuned.units.manager: BUG: Unhandled exception in start_tuning: invalid literal for int() with base 10: 'n/a'
2021-06-16 13:30:21,578 ERROR tuned.units.manager: Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/tuned/units/manager.py", line 119, in _try_call
return f(*args, **kwargs)
File "/usr/lib/python3.6/site-packages/tuned/plugins/instance/instance.py", line 78, in apply_tuning
self._plugin.instance_apply_tuning(self)
File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 261, in instance_apply_tuning
self._instance_apply_static(instance)
File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 318, in _instance_apply_static
self._execute_all_device_commands(instance, instance.assigned_devices)
File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 441, in _execute_all_device_commands
self._execute_device_command(instance, command, device, new_value)
File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 502, in _execute_device_command
command["custom"](True, new_value, device, False, False)
File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 468, in _channels
return self._custom_parameters("channels", start, value, device, verify)
File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 423, in _custom_parameters
dev_params = params_current)
File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 400, in _set_device_parameters
if context == "channels" and (int(dev_params[next(iter(d))]) == 0 or str(dev_params[next(iter(d))]) == 'n/a'):
ValueError: invalid literal for int() with base 10: 'n/a'
Expected results:
Setting the net device channel to the required value should either dismissed with a warning (if not supported for multi channels) or be set to the desired value.
Additional info:
Getting available devices on the machine example:
find /sys/class/net -type l -not -lname *virtual* -printf '%f\n'
eno3
eno1
ens1f0
eno4
eno2
ens1f1
a net device with n/a value for the channel:
# ethtool -l eno2
Channel parameters for eno2:
Pre-set maximums:
RX: 4
TX: 4
Other: n/a
Combined: n/a
Current hardware settings:
RX: 4
TX: 1
Other: n/a
Combined: n/a
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (tuned bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2021:4476
Description of problem: When the net plugin is set to scan devices and apply net queues configuration it can throw an unhandeld exception if the device has a combined channel with the n/a value. Version-Release number of selected component (if applicable): OCP: 4.8.0-fc.9 CoreOS 8.4 GA kernel-core 4.18.0 305.3.1.el8_4 How reproducible: Always Steps to Reproduce: 1. on an environment that has a non virtual net device create a tuned profile with net plugin set: [net] channels=combined 1 2. apply the profile Actual results: An unhandled exception is thrown: 2021-06-16 13:30:21,578 ERROR tuned.units.manager: BUG: Unhandled exception in start_tuning: invalid literal for int() with base 10: 'n/a' 2021-06-16 13:30:21,578 ERROR tuned.units.manager: Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/tuned/units/manager.py", line 119, in _try_call return f(*args, **kwargs) File "/usr/lib/python3.6/site-packages/tuned/plugins/instance/instance.py", line 78, in apply_tuning self._plugin.instance_apply_tuning(self) File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 261, in instance_apply_tuning self._instance_apply_static(instance) File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 318, in _instance_apply_static self._execute_all_device_commands(instance, instance.assigned_devices) File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 441, in _execute_all_device_commands self._execute_device_command(instance, command, device, new_value) File "/usr/lib/python3.6/site-packages/tuned/plugins/base.py", line 502, in _execute_device_command command["custom"](True, new_value, device, False, False) File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 468, in _channels return self._custom_parameters("channels", start, value, device, verify) File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 423, in _custom_parameters dev_params = params_current) File "/usr/lib/python3.6/site-packages/tuned/plugins/plugin_net.py", line 400, in _set_device_parameters if context == "channels" and (int(dev_params[next(iter(d))]) == 0 or str(dev_params[next(iter(d))]) == 'n/a'): ValueError: invalid literal for int() with base 10: 'n/a' Expected results: Setting the net device channel to the required value should either dismissed with a warning (if not supported for multi channels) or be set to the desired value. Additional info: Getting available devices on the machine example: find /sys/class/net -type l -not -lname *virtual* -printf '%f\n' eno3 eno1 ens1f0 eno4 eno2 ens1f1 a net device with n/a value for the channel: # ethtool -l eno2 Channel parameters for eno2: Pre-set maximums: RX: 4 TX: 4 Other: n/a Combined: n/a Current hardware settings: RX: 4 TX: 1 Other: n/a Combined: n/a