#8677: race condition creating dirs during Sage build on RH 5.4
---------------------------+------------------------------------------------
Reporter: GeorgSWeber | Owner: GeorgSWeber
Type: defect | Status: new
Priority: major | Milestone: sage-4.4
Component: build | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
In a recent thread: http://groups.google.com/group/sage-
devel/browse_thread/thread/97f1e17019caf2d0# it was reported, that " sage
4.3.5 won't build on Red Hat Enterprise Linux 5.4: File exists:
'/usr/local_machine/sage-4.3.5/local//lib/python/site-
packages//sage/structure' " The partial log output was:
{{{
python `which cython` --embed-positions --directive cdivision=True
-I/usr/local_machine/sage-4.3.5/devel/sage-main -o sage/stats/hmm/chmm.c
sage/stats/hmm/chmm.pyx
sage/stats/hmm/chmm.pyx -->
/usr/local_machine/sage-4.3.5/local//lib/python/site-
packages//sage/stats/hmm/chmm.pyx
python `which cython` --embed-positions --directive cdivision=True
-I/usr/local_machine/sage-4.3.5/devel/sage-main -o
sage/structure/coerce_dict.c sage/structure/coerce_dict.pyx
sage/structure/coerce_dict.pyx -->
/usr/local_machine/sage-4.3.5/local//lib/python/site-
packages//sage/structure/coerce_dict.pyx
python `which cython` --emTraceback (most recent call last):
File "setup.py", line 754, in <module>
execute_list_of_commands(queue)
File "setup.py", line 250, in execute_list_of_commands
execute_list_of_commands_in_parallel(command_list, nthreads)
File "setup.py", line 191, in execute_list_of_commands_in_parallel
for r in p.imap(apply_pair, command_list):
File
"/usr/local_machine/sage-4.3.5/local/lib/python/multiprocessing/pool.py",
line 520, in next
raise value
OSError: [Errno 17] File exists:
'/usr/local_machine/sage-4.3.5/local//lib/python/site-
packages//sage/structure'
sage: There was an error installing modified sage library code.
ERROR installing SAGE
real 1m56.499s
user 8m27.884s
sys 0m19.321s
sage: An error occurred while installing sage-4.3.5
Please email sage-devel http://groups.google.com/group/sage-devel
explaining the problem and send the relevant part of
of /usr/local_machine/sage-4.3.5/install.log. Describe your computer,
operating system, etc.
If you want to try to fix the problem yourself, *don't* just cd to
/usr/local_machine/sage-4.3.5/spkg/build/sage-4.3.5 and type 'make
check' or whatever is appropriate.
Instead, the following commands setup all environment variables
correctly and load a subshell for you to debug the error:
(cd '/usr/local_machine/sage-4.3.5/spkg/build/sage-4.3.5' &&
'/usr/local_machine/sage-4.3.5/sage' -sh)
When you are done debugging, you can type "exit" to leave the
subshell.
make[1]: *** [installed/sage-4.3.5] Error 1
make[1]: Leaving directory `/usr/local_machine/sage-4.3.5/spkg'
real 59m35.961s
user 64m50.926s
sys 11m16.115s
Error building Sage.
warning:
/usr/local_machine/sage-4.3.5/devel/sage-
main/sage/structure/parent_base.pyx:63:4:
Overriding cdef method with def method.
warning:
/usr/local_machine/sage-4.3.5/devel/sage-
main/sage/structure/parent.pyx:118:4:
dict already a builtin Cython type
}}}
My suspicion is, that the reason is some race condition in checking,
whether during the build some directory has to be newly added, or already
exists.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8677>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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