[New-bugs-announce] [issue12980] segfault in test_json on AMD64 FreeBSD 8.2 2.7

[STINNER Victor]

New submission from STINNER Victor <victor.stinner at haypocalc.com>:

http://www.python.org/dev/buildbot/all/builders/AMD64%20FreeBSD%208.2%202.7/builds/301

---------------------------------------------
[ 44/359] test_json
Fatal Python error: Segmentation fault

Current thread 0x00000008010041c0:
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 420 in _iterencode
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 309 in _iterencode_list
  File "/usr/home/buildbot/buildarea/2.7.krah-freebsd/build/Lib/json/encoder.py", line 408 in _iterencode
  ...
*** Signal 11
---------------------------------------------

Can it be an unlimited loop (recursive loop)? It looks like a stack overflow.

----------
components: Library (Lib)
messages: 144045
nosy: ezio.melotti, haypo
priority: normal
severity: normal
status: open
title: segfault in test_json on AMD64 FreeBSD 8.2 2.7
type: crash
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12980>
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