#13826: Race condition in star_imports cache
------------------------------------------------+---------------------------
Reporter: vbraun | Owner: GeorgSWeber
Type: defect | Status:
positive_review
Priority: critical | Milestone: sage-5.10
Component: build | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: Volker Braun
Authors: Volker Braun, Jeroen Demeyer | Merged in:
Dependencies: #14292 | Stopgaps:
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Comment (by jdemeyer):
Added
{{{
#!diff
diff --git a/sage/misc/lazy_import.pyx b/sage/misc/lazy_import.pyx
--- a/sage/misc/lazy_import.pyx
+++ b/sage/misc/lazy_import.pyx
@@ -909,6 +909,7 @@
"""
global star_imports
if star_imports is None:
+ star_imports = {}
try:
with open(get_cache_file()) as cache_file:
star_imports = pickle.load(cache_file)
@@ -917,7 +918,6 @@
except Exception: # unpickling failed
import warnings
warnings.warn('star_imports cache is corrupted')
- star_imports = {}
try:
return star_imports[module_name]
except KeyError:
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13826#comment:22>
Sage <http://www.sagemath.org>
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