[postgis-devel] ST_IsValidReason causes crash

[maplabs at light42.com]

-------

Linux tone 2.6.32-5-amd64 #1 SMP Tue Jun 14 09:42:28 UTC 2011 x86_64 GNU/Linux

POSTGIS="2.0.0SVN" GEOS="3.4.0dev-CAPI-1.8.0" PROJ="Rel. 4.7.1, 23 
September 2009" LIBXML="2.7.8" USE_STATS

no crash

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Linux aced 2.6.32-5-amd64 #1 SMP Tue Jun 14 09:42:28 UTC 2011 x86_64 GNU/Linux

POSTGIS="1.5.3" GEOS="3.3.0-CAPI-1.7.0" PROJ="Rel. 4.7.1, 23 September 
2009" LIBXML="2.7.8" USE_STATS

no crash
  -------

On Tue, 13 Sep 2011 11:39:55 +0930, James Sewell  wrote:

Hello All,

  I am running the following version on both CentOS and Solaris 10:

    POSTGIS="1.5.3" GEOS="3.1.1-CAPI-1.6.0" PROJ="Rel. 4.7.1, 23 
September 2009" LIBXML="2.6.26" USE_STATS

  The following SQL causes a crash on both:

     create table test (the_geom geometry);
     insert into test(the_geom) values    
('0103000020BB100000010000000E0000002F2FC03E3A146240D5A76620E0AF42C075ED66A1381462401CCF6740BDAF42C0980B016538146240E39A4C26B8AF42C0A8CA5246371462407E6DFDF49FAF42C0819AB56F49146240EA63F492B5AF42C0E17A14AE471462401D9DA9C601B042C04AE18B404614624074F7EFB03FB042C0E0C8F2642D1462405305A3923AB042C06EC5596C2E146240B06EBC3B32B042C0B294D16D2E14624022B4D43032B042C080F43C6E2E1462405175502E32B042C07DF43C6E2E1462406375502E32B042C04754A86E2E146240A536CC2B32B042C02F2FC03E3A146240D5A76620E0AF42C0');
    select St_IsValidReason(the_geom) from test;
     select St_IsValidReason(the_geom) from test;

The first IsValidReason works as expected, then the second causes a 
psql hang and I see the following in the logs (CentOS):

     *** glibc detected *** postgres: plm25 plm25 [local] SELECT: 
free(): invalid next size (fast): 0x09a77228 ***

  Can anyone reproduce this? I can’t with my other install:

    POSTGIS="1.5.2" GEOS="3.2.2-CAPI-1.6.2" PROJ="Rel. 4.6.1, 21 August 
2008" LIBXML="2.7.6" USE_STATS

  Any ideas on how I could further troubleshoot?

  Cheers,
  James Sewell
Solutions Architect
LISAsoft

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