Trying to provoke more errors:
sage: from sage.env import SAGE_EXTCODE
sage: for k in range(10000):
....: gp = Gp()
....: gp.read(SAGE_EXTCODE + "/pari/simon/qfsolve.gp")
....: k
breaks at k = 1922 with
---------------------------------------------------------------------
OSError Traceback (most recent call last)
<ipython-input-5-38e8adf2a837> in <module>()
1 for k in range(Integer(10000)):
2 gp = Gp()
----> 3 gp.read(SAGE_EXTCODE + "/pari/simon/qfsolve.gp")
4 k
5
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in read(self, filename)
222 sage: os.unlink(filename)
223 """
--> 224 self.eval(self._read_in_file_command(filename))
225
226 def _read_in_file_command(self, filename):
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in eval(self, code, strip, synchronize, locals, allow_use_file,
split_lines, **kwds)
1349 elif split_lines:
1350 return '\n'.join([self._eval_line(L,
allow_use_file=allow_use_file, **kwds)
-> 1351 for L in code.split('\n')
if L != ''])
1352 else:
1353 return self._eval_line(code,
allow_use_file=allow_use_file, **kwds)
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/gp.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
443 a = Expect._eval_line(self, line,
444 allow_use_file=allow_use_file,
--> 445 wait_for_prompt=wait_for_prompt)
446 if a.find("the PARI stack overflows") != -1:
447 verbose("automatically doubling the PARI stack and
re-executing current input line")
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
914 try:
915 if self._expect is None:
--> 916 self._start()
917 E = self._expect
918 try:
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/gp.pyc
in _start(self, alt_message, block_during_init)
241
242 def _start(self, alt_message=None, block_during_init=True):
--> 243 Expect._start(self, alt_message, block_during_init)
244 # disable memory debugging: those warnings can only confuse
our
245 # interface
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _start(self, alt_message, block_during_init)
501 # Work around
https://bugs.python.org/issue1652
502 preexec_fn=lambda:
signal.signal(signal.SIGPIPE, signal.SIG_DFL),
--> 503 quit_string=self._quit_string())
504 except (ExceptionPexpect, pexpect.EOF) as e:
505 # Change pexpect errors to RuntimeError
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/sagespawn.pyx
in sage.interfaces.sagespawn.SageSpawn.__init__
(build/cythonized/sage/interfaces/sagespawn.c:1948)()
63 kwds.setdefault("maxread", 4194304)
64
---> 65 with ContainChildren(silent=True):
66 spawn.__init__(self, *args, **kwds)
67
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/sagespawn.pyx
in sage.interfaces.sagespawn.SageSpawn.__init__
(build/cythonized/sage/interfaces/sagespawn.c:1902)()
64
65 with ContainChildren(silent=True):
---> 66 spawn.__init__(self, *args, **kwds)
67
68 self.delaybeforesend = None
/home/simon/sage/local/lib/python2.7/site-packages/pexpect/pty_spawn.pyc in
__init__(self, command, args, timeout, maxread, searchwindowsize, logfile,
cwd, env, ignore_sighup, echo, preexec_fn, encoding, codec_errors,
dimensions, use_poll)
202 self.name = '<pexpect factory incomplete>'
203 else:
--> 204 self._spawn(command, args, preexec_fn, dimensions)
205 self.use_poll = use_poll
206
/home/simon/sage/local/lib/python2.7/site-packages/pexpect/pty_spawn.pyc in
_spawn(self, command, args, preexec_fn, dimensions)
301
302 self.ptyproc = self._spawnpty(self.args, env=self.env,
--> 303 cwd=self.cwd, **kwargs)
304
305 self.pid = self.ptyproc.pid
/home/simon/sage/local/lib/python2.7/site-packages/sage/interfaces/sagespawn.pyx
in sage.interfaces.sagespawn.SageSpawn._spawnpty
(build/cythonized/sage/interfaces/sagespawn.c:2133)()
80 SagePtyProcess.spawn(...)
81 """
---> 82 ptyproc = SagePtyProcess.spawn(args, **kwds)
83 ptyproc.quit_string = self.quit_string
84 return ptyproc
/home/simon/sage/local/lib/python2.7/site-packages/ptyprocess/ptyprocess.pyc
in spawn(cls, argv, cwd, env, echo, preexec_fn, dimensions)
218
219 if use_native_pty_fork:
--> 220 pid, fd = pty.fork()
221 else:
222 # Use internal fork_pty, for Solaris
/home/simon/sage/local/lib/python2.7/pty.pyc in fork()
106
107 master_fd, slave_fd = openpty()
--> 108 pid = os.fork()
109 if pid == CHILD:
110 # Establish a new session.
OSError: [Errno 11] Resource temporarily unavailable
sage:
**********************************************************************
Oops, Sage crashed. We do our best to make it stable, but...
........
