cpuhotplug_04 fails to run with taskset 2.24

[Milosz Wasilewski]

when running cpuhotplug_04.sh with taskset 2.24, setting CPU affinity fails because of taskset:

taskset -c 0x2 ../utils/cpuburn cpu1
taskset: failed to parse CPU list: 0x2

Removing -c option fixes the problem on taskset 2.20 and 2.24. Full log of cpuhotplug_04 below:

linaro-test [rc=0]# ./cpuhotplug_04.sh
taskset: failed to parse CPU list: 0x2
taskset: failed to get pid 3867's affinity: No such process
./cpuhotplug_04.sh: line 52: printf: 0x: invalid hex number
cpuhotplug_04.0/cpu1: checking affinity is set... Err
cpuhotplug_04.1/cpu1: checking offlining a cpu with affinity succeed... Ok
taskset: failed to get pid 3867's affinity: No such process
./cpuhotplug_04.sh: line 63: printf: 0x: invalid hex number
cpuhotplug_04.2/cpu1: checking affinity changed... Ok
./cpuhotplug_04.sh: line 66: kill: (3867) - No such process
taskset: failed to parse CPU list: 0x4
taskset: failed to get pid 3880's affinity: No such process
./cpuhotplug_04.sh: line 52: printf: 0x: invalid hex number
cpuhotplug_04.0/cpu2: checking affinity is set... Err
cpuhotplug_04.1/cpu2: checking offlining a cpu with affinity succeed... Ok
taskset: failed to get pid 3880's affinity: No such process
./cpuhotplug_04.sh: line 63: printf: 0x: invalid hex number
cpuhotplug_04.2/cpu2: checking affinity changed... Ok
./cpuhotplug_04.sh: line 66: kill: (3880) - No such process
taskset: failed to parse CPU list: 0x8
taskset: failed to get pid 3894's affinity: No such process
./cpuhotplug_04.sh: line 52: printf: 0x: invalid hex number
cpuhotplug_04.0/cpu3: checking affinity is set... Err
cpuhotplug_04.1/cpu3: checking offlining a cpu with affinity succeed... Ok
taskset: failed to get pid 3894's affinity: No such process
./cpuhotplug_04.sh: line 63: printf: 0x: invalid hex number
cpuhotplug_04.2/cpu3: checking affinity changed... Ok
./cpuhotplug_04.sh: line 66: kill: (3894) - No such process
taskset: failed to parse CPU list: 0x16
taskset: failed to get pid 3907's affinity: No such process
./cpuhotplug_04.sh: line 52: printf: 0x: invalid hex number
cpuhotplug_04.0/cpu4: checking affinity is set... Err
cpuhotplug_04.1/cpu4: checking offlining a cpu with affinity succeed... Ok
taskset: failed to get pid 3907's affinity: No such process
./cpuhotplug_04.sh: line 63: printf: 0x: invalid hex number
cpuhotplug_04.2/cpu4: checking affinity changed... Ok
./cpuhotplug_04.sh: line 66: kill: (3907) - No such process
taskset: failed to parse CPU list: 0x32
taskset: failed to get pid 3921's affinity: No such process
./cpuhotplug_04.sh: line 52: printf: 0x: invalid hex number
cpuhotplug_04.0/cpu5: checking affinity is set... Err
cpuhotplug_04.1/cpu5: checking offlining a cpu with affinity succeed... Ok
taskset: failed to get pid 3921's affinity: No such process
./cpuhotplug_04.sh: line 63: printf: 0x: invalid hex number
cpuhotplug_04.2/cpu5: checking affinity changed... Ok
./cpuhotplug_04.sh: line 66: kill: (3921) - No such process
-------- total = 15
-------- pass = 10
-------- fail = 5

[Daniel Lezcano (daniel-lezcano)]

https://git.linaro.org/power/pm-qa.git/commit/9d441ac3b55b3e75365ff6c6d1d7859892d996fd