[Monotone-devel] Issue 144 - mtn diff infinite loop (monotone)

[code]

Hello,

A new issue has been created and assigned
to you:

144 - mtn diff infinite loop
Project: monotone
Status: New
Reported by: joe 23
Labels:
 Type:Defect
 Priority:Medium

Description:

The internal diff is apparently buggy. On a pathological (but real life) text 
file, mtn diff never returns. mtn diff --external works fine. This seems to 
have broken somewhere between 0.44 and 0.48. I have reports of this working for 
some people and not others, so it may depend on platform or libraries, but I 
haven't been able to isolate it further.


Steps to reproduce the problem:
-------------------------------

1. gunzip v1.txt.gz
2. gunzip v2.txt.gz
3. mtn add v1.txt
4. mtn ci v1.txt
5. cp v2.txt v1.txt
6  mtn diff v1.txt

Expected result:
----------------
completion

Actual results:
---------------
100% CPU forever

Output of `mtn version --full`:
-------------------------------
monotone 0.99.1 (base revision: 8973482283db7c36780dce2b54721ccc0f5b7388)
Running on          : Linux 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 01:41:57 
UTC 2010 i686
C++ compiler        : GNU C++ version 4.3.2
C++ standard library: GNU libstdc++ version 20080905
Boost version       : 1_40
SQLite version      : 3.5.9 (compiled against 3.5.9)
Lua version         : Lua 5.1
PCRE version        : 7.6 2008-01-28 (compiled against 7.6)
Botan version       : 1.8.9 (compiled against 1.8.9)
Changes since base revision:
format_version "1"

new_manifest [c1270158b7fa91abf8235ad129b0476943bde1ed]

old_revision [8973482283db7c36780dce2b54721ccc0f5b7388]

  Generated from data cached in the distribution;
  further changes may have been made.

Attachments:
- v1.txt.gz - 696.80 kB
  https://code.monotone.ca/p/monotone/issues/view/attachment/21/v1.txt.gz
- v2.txt.gz - 684.96 kB
  https://code.monotone.ca/p/monotone/issues/view/attachment/22/v2.txt.gz

--
Issue: https://code.monotone.ca/p/monotone/issues/144/