[WIN 10] permission issue in 5.6.2

[jeremad]

Platform

• Windows 10 pro
• 5.6.2

Bug description
calling psutil.process_iter fails. It only fails when run by my CI process (gitlab-runner), and with 5.6.1, I have no error. It seems that it fails to handle permission error correctly, if I understand the code well

Traceback (most recent call last):
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 716, in wrapper
    return fun(self, *args, **kwargs)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 774, in exe
    exe = cext.proc_exe(self.pid)
PermissionError: [WinError 31] A device attached to the system is not functioning: '(originated from QueryFullProcessImageNameW)'

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 773, in exe
    exe = self._proc.exe()
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 718, in wrapper
    raise convert_oserror(err, pid=self.pid, name=self._name)
psutil.AccessDenied: psutil.AccessDenied (pid=120, name='Registry')

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 790, in cmdline
    ret = cext.proc_cmdline(self.pid, use_peb=True)
PermissionError: [WinError 5] Access is denied
During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\jenkins\appdata\local\tanker\dmenv\venv\dev\3.6.7\sdk-js\src\ci\ci\js.py", line 71, in find_procs_by_name
    for p in psutil.process_iter(attrs=["name", "exe", "cmdline"]):
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 1566, in process_iter
    yield add(pid)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 1543, in add
    proc.info = proc.as_dict(attrs=attrs, ad_value=ad_value)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 638, in as_dict
    ret = meth()
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 775, in exe
    return guess_it(fallback=err)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 757, in guess_it
    cmdline = self.cmdline()
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\__init__.py", line 790, in cmdline
    return self._proc.cmdline()
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 718, in wrapper
    raise convert_oserror(err, pid=self.pid, name=self._name)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 708, in convert_oserror
    raise exc
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 716, in wrapper
    return fun(self, *args, **kwargs)
  File "C:\Users\jenkins\AppData\Local\Tanker\dmenv\venv\dev\3.6.7\sdk-js\lib\site-packages\psutil\_pswindows.py", line 793, in cmdline
    ret = cext.proc_cmdline(self.pid, use_peb=False)
OSError: [WinError 1168] Element not found: '(originated from NtQueryInformationProcess(ProcessBasicInformation))'

for p in psutil.process_iter(attrs=["name", "exe", "cmdline"]):
    print p

[giampaolo]

Duplicate of #1501. I just released psutil 5.6.3 which fixes this.

[jeremad]

I confirm the issue is fixed on 5.6.3, thank you very much