Re: [ovs-dev] [RFC 3/7] selftests: openvswitch: use non-graceful kills when needed

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Adrian Moreno <amorenoz@xxxxxxxxxx> writes:

> On 2/16/24 16:28, Aaron Conole wrote:
>> Normally a spawned process under OVS is given a SIGTERM when the test
>> ends as part of cleanup.  However, in case the process is still lingering
>> for some reason, we also send a SIGKILL to force it down faster.
>> Signed-off-by: Aaron Conole <aconole@xxxxxxxxxx>
>> ---
>>   tools/testing/selftests/net/openvswitch/openvswitch.sh | 6 ++++--
>>   1 file changed, 4 insertions(+), 2 deletions(-)
>> diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh
>> b/tools/testing/selftests/net/openvswitch/openvswitch.sh
>> index a5dbde482ba4..678a72ad47c1 100755
>> --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh
>> +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
>> @@ -91,7 +91,8 @@ ovs_add_if () {
>>   		python3 $ovs_base/ovs-dpctl.py add-if \
>>   		    -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err &
>>   		pid=$!
>> -		on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null"
>> +		on_exit "ovs_sbx $1 kill --timeout 1000 TERM \
>> +                                        --timeout 1000 KILL $pid 2>/dev/null"
>>   	fi
>>   }
>>   
>
> AFAIK, this will immediately send TERM, then wait 1s, send TERM again,
> wait 1s then send KILL. Is that what you intended? To avoid the double
> TERM you could:

Okay, I'll adjust it.

> --
> Adrián Moreno
>
>> @@ -108,7 +109,8 @@ ovs_netns_spawn_daemon() {
>>   	info "spawning cmd: $*"
>>   	ip netns exec $netns $*  >> $ovs_dir/stdout  2>> $ovs_dir/stderr &
>>   	pid=$!
>> -	ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null"
>> +	ovs_sbx "$sbx" on_exit "kill --timeout 1000 TERM \
>> +                                    --timeout 1000 KILL $pid 2>/dev/null"
>>   }
>>     ovs_add_netns_and_veths () {






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