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Diff for /wikisrc/users/leot/aarch64_problems.mdwn between versions 1.1 and 1.2

version 1.1, 2018/06/18 12:30:36 version 1.2, 2018/06/18 12:42:27
Line 8  investigation in order to write proper P Line 8  investigation in order to write proper P
   
 At least by running:  At least by running:
   
 ````      # usbhidctl -f uhid4 -r
 # usbhidctl -f uhid4 -r  
 ````  
   
 it is possible to crash the Pinebook. Investigate why and if possible get a  it is possible to crash the Pinebook. Investigate why and if possible get a
 complete backtrace.  complete backtrace.
Line 19  complete backtrace. Line 17  complete backtrace.
 ## `mpv` and NetBSD crashes  ## `mpv` and NetBSD crashes
 Just by invoking `mpv` via:  Just by invoking `mpv` via:
   
 ````      $ mpv
 $ mpv  
 ````  
   
 It is possible to completely crash NetBSD on aarch64. Investigate why and if  It is possible to completely crash NetBSD on aarch64. Investigate why and if
 possible get a complete backtrace.  possible get a complete backtrace.
Line 32  possible get a complete backtrace. Line 28  possible get a complete backtrace.
 ## Python `import requests` SIGILLs  ## Python `import requests` SIGILLs
 Doing a (please note that also `python36` is affected):  Doing a (please note that also `python36` is affected):
   
 ````      $ python2.7 -c 'import requests'
 $ python2.7 -c 'import requests'      Illegal instruction (core dumped)
 Illegal instruction (core dumped)      Exit 132
 Exit 132  
 ````  
   
 leads to a SIGILL. Trying to reduce the test case this also happens with just a:  leads to a SIGILL. Trying to reduce the test case this also happens with just a:
   
 ````      $ python2.7 -c 'import OpenSSL'
 $ python2.7 -c 'import OpenSSL'      Illegal instruction (core dumped)
 Illegal instruction (core dumped)      Exit 132
 Exit 132  
 ````  
   
 Trying to debug this a bit further we can see:  Trying to debug this a bit further we can see:
   
 ````      % cat asi.py
 % cat asi.py      import OpenSSL
 import OpenSSL      % python2.7 -m trace --trace asi.py
 % python2.7 -m trace --trace asi.py      [...]
 [...]      binding.py(88):     for attr in dir(lib):
 binding.py(88):     for attr in dir(lib):      binding.py(89):         if attr not in excluded_names:
 binding.py(89):         if attr not in excluded_names:      binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))
 binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))      binding.py(88):     for attr in dir(lib):
 binding.py(88):     for attr in dir(lib):      binding.py(89):         if attr not in excluded_names:
 binding.py(89):         if attr not in excluded_names:      binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))
 binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))      binding.py(88):     for attr in dir(lib):
 binding.py(88):     for attr in dir(lib):      binding.py(89):         if attr not in excluded_names:
 binding.py(89):         if attr not in excluded_names:      binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))
 binding.py(90):             setattr(conditional_lib, attr, getattr(lib, attr))      binding.py(88):     for attr in dir(lib):
 binding.py(88):     for attr in dir(lib):      binding.py(92):     return conditional_lib
 binding.py(92):     return conditional_lib      binding.py(126):                 cls._lib_loaded = True
 binding.py(126):                 cls._lib_loaded = True      binding.py(128):                 cls.lib.SSL_library_init()
 binding.py(128):                 cls.lib.SSL_library_init()      Illegal instruction (core dumped)
 Illegal instruction (core dumped)      Exit 132
 Exit 132  
 ````  
Removed from v.1.1  
changed lines
  Added in v.1.2

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