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Add explicit/helpful error message about how to solve the multiprocessing 'Permission denied' issue.

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This commit is contained in:
Valentin Lorentz 2013-08-12 19:08:31 +02:00
parent 36f54039fc
commit ebde072f39
1 changed files with 11 additions and 1 deletions
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12
src/commands.py
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@ -101,7 +101,17 @@ def process(f, *args, **kwargs):
except Exception as e: except Exception as e:
raise e raise e
q = multiprocessing.Queue() try:
q = multiprocessing.Queue()
except OSError:
log.error('Using multiprocessing.Queue raised an OSError.\n'
'This is probably caused by your system denying semaphore\n'
'usage. You should run these two commands:\n'
'\tsudo rmdir /dev/shm\n'
'\tsudo ln -Tsf /{run,dev}/shm\n'
'(See https://github.com/travis-ci/travis-core/issues/187\n'
'for more informations about this bug.)\n')
raise
def newf(f, q, *args, **kwargs): def newf(f, q, *args, **kwargs):
if resource: if resource:
rsrc = resource.RLIMIT_DATA rsrc = resource.RLIMIT_DATA