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Issue #18762: Print debug info on failure to create new forkserver process.

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Also modify test code to hopefully avoid deadlock on failure.
This commit is contained in:
Richard Oudkerk 2013-08-21 19:45:19 +01:00
parent 6acbe2aaa3
commit a01fb39877
2 changed files with 19 additions and 2 deletions
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15
Lib/multiprocessing/forkserver.py
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@ -66,6 +66,21 @@ def connect_to_new_process(fds):
try:
reduction.sendfds(client, allfds)
return parent_r, parent_w
except OSError:
# XXX This is debugging info for Issue #18762
import fcntl
L = []
for fd in allfds:
try:
flags = fcntl.fcntl(fd, fcntl.F_GETFL)
except OSError as e:
L.append((fd, e))
else:
L.append((fd, flags))
print('*** connect_to_new_process: %r' % L, file=sys.stderr)
os.close(parent_r)
os.close(parent_w)
raise
except:
os.close(parent_r)
os.close(parent_w)