CPU cores count on Linux/HPPA is not detected correctly

[DerDakon]

Platform

• Gentoo Linux on HP C8000
• 5.6.7

Bug description
My HP C8000 has 4 CPUs, 2 sockets with a dual-die processor module in them. PA-RISC has no hyperthreading.

FAIL: psutil.tests.test_linux.TestSystemCPUCountPhysical.test_against_lscpu
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/tmp/portage/dev-python/psutil-5.6.7/work/psutil-5.6.7-python2_7/lib/psutil/tests/test_linux.py", line 693, in test_against_lscpu
    self.assertEqual(psutil.cpu_count(logical=False), len(core_ids))
AssertionError: 2 != 4

chroot ~ # lscpu
Architecture:        parisc64
Byte Order:          Big Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  2
Socket(s):           2
CPU family:          PA-RISC 2.0
Model:               9000/785/C8000
Model name:          PA8800 (Mako)
CPU MHz:             1000.000000
BogoMIPS:            1988.60
chroot ~ # lscpu -p
# The following is the parsable format, which can be fed to other
# programs. Each different item in every column has an unique ID
# starting from zero.
# CPU,Core,Socket,Node
0,0,0,
1,1,0,
2,2,1,
3,3,1,
chroot ~ # cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
physical id     : 0
siblings        : 2
core id         : 0
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6266852346624179925

processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
physical id     : 0
siblings        : 2
core id         : 1
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6266852346624179925

processor       : 2
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
physical id     : 1
siblings        : 2
core id         : 0
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6266852346624179925

processor       : 3
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
physical id     : 1
siblings        : 2
core id         : 1
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6266852346624179925

[DerDakon]

As I now found out this is also wrong on my T5120:

FAIL: psutil.tests.test_linux.TestSystemCPUCountPhysical.test_against_lscpu
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/tmp/portage/dev-python/psutil-5.7.2/work/psutil-5.7.2/psutil/tests/test_linux.py", line 695, in test_against_lscpu
    self.assertEqual(psutil.cpu_count(logical=False), len(core_ids))
AssertionError: 8 != 16

castor ~ #  lscpu
Architecture:        sparc64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Big Endian
CPU(s):              64
On-line CPU(s) list: 0-63
Thread(s) per core:  4
Core(s) per socket:  16
Socket(s):           1
NUMA node(s):        1
Model name:          UltraSparc T2 (Niagara2)
NUMA node0 CPU(s):   0-63
Flags:               sun4v
castor ~ #  lscpu -p
# The following is the parsable format, which can be fed to other
# programs. Each different item in every column has an unique ID
# starting from zero.
# CPU,Core,Socket,Node
0,0,0,0
1,0,0,0
2,0,0,0
3,0,0,0
4,1,0,0
5,1,0,0
6,1,0,0
7,1,0,0
8,2,0,0
9,2,0,0
10,2,0,0
11,2,0,0
12,3,0,0
13,3,0,0
14,3,0,0
15,3,0,0
16,4,0,0
17,4,0,0
18,4,0,0
19,4,0,0
20,5,0,0
21,5,0,0
22,5,0,0
23,5,0,0
24,6,0,0
25,6,0,0
26,6,0,0
27,6,0,0
28,7,0,0
29,7,0,0
30,7,0,0
31,7,0,0
32,8,0,0
33,8,0,0
34,8,0,0
35,8,0,0
36,9,0,0
37,9,0,0
38,9,0,0
39,9,0,0
40,10,0,0
41,10,0,0
42,10,0,0
43,10,0,0
44,11,0,0
45,11,0,0
46,11,0,0
47,11,0,0
48,12,0,0
49,12,0,0
50,12,0,0
51,12,0,0
52,13,0,0
53,13,0,0
54,13,0,0
55,13,0,0
56,14,0,0
57,14,0,0
58,14,0,0
59,14,0,0
60,15,0,0
61,15,0,0
62,15,0,0
63,15,0,0

[giampaolo]

I think this was fixed by #1727. If not please comment. Closing as duplicate for now.