[Django] #27586: Django sometimes crashes on Windows when being launched in PyCharm
Django
----------------------------------------+------------------------
Reporter: Vilius Poška | Owner: nobody
Type: Bug | Status: new
Component: Utilities | Version: 1.10
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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When trying to launch a Django server with (and sometimes even without)
debugging on PyCharm, I get this error:
{{{
...
pydev debugger: process 10532 is connecting
Connected to pydev debugger (build 163.8233.8)
Process finished with exit code -1073741819 (0xC0000005)
}}}
That's how it looks without debugging:
{{{
"C:\Program Files (x86)\PyCharm\bin\runnerw.exe"
D:\project\env\Scripts\python.exe D:/project/manage.py runserver 80
Process finished with exit code -1073741819 (0xC0000005)
}}}
The strangest thing is that if I re-run, some of the times (1 success in
about 4-6 reruns) it will launch successfully. I also couldn't reproduce
this problem without PyCharm.
Specs: Windows 10 Pro, Pycharm (this happens on versions 5.x through
2016.3) x86 and x64 versions, Python 3.5x, Django 1.8-1.10.x.
This is what the Event Viewer reports about the error:
{{{
Faulting application name: python.exe, version: 3.5.1150.1013, time
stamp: 0x566391f0
Faulting module name: ucrtbase.dll, version: 10.0.14393.0, time stamp:
0x57898db2
Exception code: 0xc0000005
Fault offset: 0x000b6d95
Faulting process ID: 0x1b30
Faulting application start time: 0x01d251286ca8ada3
Faulting application path: D:\project\env\Scripts\python.exe
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report ID: b23376d6-cf66-4d83-8781-cd22311e0f9e
Faulting package full name:
Faulting package-relative application ID:
}}}
The error appears to originate from `restart_with_reloader` in
`autoreload.py` after this statement:
{{{
def restart_with_reloader():
while True:
args = [sys.executable] + ['-W%s' % o for o in
sys.warnoptions] + sys.argv
if sys.platform == "win32":
args = ['"%s"' % arg for arg in args]
new_environ = os.environ.copy()
new_environ["RUN_MAIN"] = 'true'
# this line crashes the whole script
# I guess the problem arises in native code
exit_code = os.spawnve(os.P_WAIT, sys.executable, args,
new_environ)
# debugger disconnects here
if exit_code != 3:
return exit_code
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/27586>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
Django
Reporter: Vilius Poška | Owner: nobody
Component: Utilities | Version: 1.10
Severity: Normal | Resolution: needsinfo
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by Tim Graham):
* status: new => closed
* resolution: => needsinfo
Comment:
If the issue can't be reproduced without PyCharm, then I'm inclined to say
you should file an issue with PyCharm support so their engineers can
investigate the issue. If they determine Django is at fault, I'd welcome
them to open the issue with a proposed fix.
--
Ticket URL: <https://code.djangoproject.com/ticket/27586#comment:1>
Django
Reporter: Vilius Poška | Owner: nobody
Component: Utilities | Version: 1.10
Severity: Normal | Resolution: needsinfo
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Comment (by Vašek Dohnal):
I'm have sometimes same issue on Windows 10 Pro (1607) when I run Django
runserver from Powershell console. Here is mine Windows Event log:
{{{
Faulting application name: python.exe, version: 3.5.1150.1013, time stamp:
0x576eff6a
Faulting module name: ucrtbase.dll, version: 10.0.14393.0, time stamp:
0x57898db2
Exception code: 0xc0000005
Fault offset: 0x000b6d95
Faulting process id: 0x2518
Faulting application start time: 0x01d266e0af109346
Faulting application path:
C:\Users\***\.virtualenvs\***\Scripts\python.exe
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: b30fc25b-9183-4c8f-b01f-5fb5b71fddad
Faulting package full name:
Faulting package-relative application ID:
}}}
After several re-runs runserver works OK. I'm using Python 3.5.2 and
Django 1.10.5.
--
Ticket URL: <https://code.djangoproject.com/ticket/27586#comment:2>
Django
Reporter: Vilius Poška | Owner: nobody
Component: Utilities | Version: 1.10
Severity: Normal | Resolution: needsinfo
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Comment (by johnthagen):
This problem happens on Windows 8+. It's actually a bug in Microsoft CRT
manifesting in PyCharm.
A workaround is posted here:
https://youtrack.jetbrains.com/issue/PY-17069#comment=27-1804561
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Ticket URL: <https://code.djangoproject.com/ticket/27586#comment:3>