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IC69308: XTREE CRASHES IF YOU RUN A QUERY TWICE

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APAR status

  • Closed as program error.

Error description

  • Linux Xtree, when attached to a session, easily crashes if
session runs a simple "select * from table" query twice.

It prints following stack:

*** glibc detected *** xtree: double free or corruption
(fasttop): 0x086c9f60 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6
/lib/tls/i686/cmov/libc.so.6
/lib/tls/i686/cmov/libc.so.6
xtree
xtree
xtree
xtree
/usr/lib/libXt.so.6
/usr/lib/libXt.so.6
/usr/lib/libXt.so.6
xtree
xtree
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)
xtree
======= Memory map: ========
08048000-080ff000 r-xp 00000000 08:02 411064
/opt/IBM/informix/bin/xtree
080ff000-08109000 rwxp 000b6000 08:02 411064
/opt/IBM/informix/bin/xtree
08109000-0816b000 rwxp 00000000 00:00 0
08673000-086d6000 rwxp 00000000 00:00 0          [heap]
44000000-48000000 rwxs 00000000 00:04 27394074   /SYSV52564801
(deleted)
48000000-4ace0000 rwxs 00000000 00:04 27426870   /SYSV52564802
(deleted)
4ace0000-4ccc4000 rwxs 00000000 00:04 27459639   /SYSV52564803
(deleted)
b6d00000-b6d21000 rwxp 00000000 00:00 0
b6d21000-b6e00000 ---p 00000000 00:00 0
b6ed0000-b6ed4000 r-xp 00000000 08:02 1431237
/usr/lib/libXfixes.so.3.1.0
b6ed4000-b6ed5000 r-xp 00003000 08:02 1431237
/usr/lib/libXfixes.so.3.1.0
b6ed5000-b6ed6000 rwxp 00004000 08:02 1431237
/usr/lib/libXfixes.so.3.1.0
b6ed6000-b6ede000 r-xp 00000000 08:02 1429136
/usr/lib/libXrender.so.1.3.0
b6ede000-b6edf000 r-xp 00007000 08:02 1429136
/usr/lib/libXrender.so.1.3.0
b6edf000-b6ee0000 rwxp 00008000 08:02 1429136
/usr/lib/libXrender.so.1.3.0
b6ee0000-b6ee8000 r-xp 00000000 08:02 1429817
/usr/lib/libXcursor.so.1.0.2
b6ee8000-b6ee9000 r-xp 00007000 08:02 1429817
/usr/lib/libXcursor.so.1.0.2
b6ee9000-b6eea000 rwxp 00008000 08:02 1429817
/usr/lib/libXcursor.so.1.0.2
b6eea000-b6ef4000 r-xp 00000000 08:02 229910
/lib/tls/i686/cmov/libnss_files-2.11.1.so
b6ef4000-b6ef5000 r-xp 00009000 08:02 229910
/lib/tls/i686/cmov/libnss_files-2.11.1.so
b6ef5000-b6ef6000 rwxp 0000a000 08:02 229910
/lib/tls/i686/cmov/libnss_files-2.11.1.so
b6ef6000-b6efe000 r-xp 00000000 08:02 229913
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
b6efe000-b6eff000 r-xp 00007000 08:02 229913
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
b6eff000-b6f00000 rwxp 00008000 08:02 229913
/lib/tls/i686/cmov/libnss_nis-2.11.1.so
b6f00000-b6f13000 r-xp 00000000 08:02 229906
/lib/tls/i686/cmov/libnsl-2.11.1.so
b6f13000-b6f14000 r-xp 00012000 08:02 229906
/lib/tls/i686/cmov/libnsl-2.11.1.so
b6f14000-b6f15000 rwxp 00013000 08:02 229906
/lib/tls/i686/cmov/libnsl-2.11.1.so
b6f15000-b6f17000 rwxp 00000000 00:00 0
b6f17000-b6f1d000 r-xp 00000000 08:02 229907
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
b6f1d000-b6f1e000 r-xp 00006000 08:02 229907
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
b6f1e000-b6f1f000 rwxp 00007000 08:02 229907
/lib/tls/i686/cmov/libnss_compat-2.11.1.so
b6f1f000-b6f21000 rwxp 00000000 00:00 0
b6f21000-b6f25000 r-xp 00000000 08:02 1432743
/usr/lib/libXdmcp.so.6.0.0
b6f25000-b6f26000 r-xp 00003000 08:02 1432743
/usr/lib/libXdmcp.so.6.0.0
b6f26000-b6f27000 rwxp 00004000 08:02 1432743
/usr/lib/libXdmcp.so.6.0.0
b6f27000-b6f29000 r-xp 00000000 08:02 1430251
/usr/lib/libXau.so.6.0.0
b6f29000-b6f2a000 r-xp 00001000 08:02 1430251
/usr/lib/libXau.so.6.0.0
b6f2a000-b6f2b000 rwxp 00002000 08:02 1430251
/usr/lib/libXau.so.6.0.0
b6f2b000-b6f2e000 r-xp 00000000 08:02 230536
/lib/libuuid.so.1.3.0
b6f2e000-b6f2f000 r-xp 00002000 08:02 230536
/lib/libuuid.so.1.3.0
b6f2f000-b6f30000 rwxp 00003000 08:02 230536
/lib/libuuid.so.1.3.0
b6f30000-b6f48000 r-xp 00000000 08:02 1430521
/usr/lib/libxcb.so.1.1.0
b6f48000-b6f49000 r-xp 00017000 08:02 1430521
/usr/lib/libxcb.so.1.1.0
b6f49000-b6f4a000 rwxp 00018000 08:02 1430521
/usr/lib/libxcb.so.1.1.0
b6f4a000-b6f4b000 rwxp 00000000 00:00 0
b6f4b000-b6f5a000 r-xp 00000000 08:02 1430925
/usr/lib/libXpm.so.4.11.0
b6f5a000-b6f5b000 r-xp 0000e000 08:02 1430925
/usr/lib/libXpm.so.4.11.0
b6f5b000-b6f5c000 rwxp 0000f000 08:02 1430925
/usr/lib/libXpm.so.4.11.0
b6f5c000-b6f63000 r-xp 00000000 08:02 1429762
/usr/lib/libXp.so.6.2.0
b6f63000-b6f64000 r-xp 00006000 08:02 1429762
/usr/lib/libXp.so.6.2.0
b6f64000-b6f65000 rwxp 00007000 08:02 1429762
/usr/lib/libXp.so.6.2.0
b6f65000-b6f7a000 r-xp 00000000 08:02 1428412
/usr/lib/libICE.so.6.3.0
b6f7a000-b6f7b000 r-xp 00014000 08:02 1428412
/usr/lib/libICE.so.6.3.0
b6f7b000-b6f7c000 rwxp 00015000 08:02 1428412
/usr/lib/libICE.so.6.3.0
b6f7c000-b6f7e000 rwxp 00000000 00:00 0
b6f7e000-b6f85000 r-xp 00000000 08:02 1428416
/usr/lib/libSM.so.6.0.1
b6f85000-b6f86000 r-xp 00006000 08:02 1428416
/usr/lib/libSM.so.6.0.1
b6f86000-b6f87000 rwxp 00007000 08:02 1428416
/usr/lib/libSM.so.6.0.1
b6f87000-b70da000 r-xp 00000000 08:02 229865
/lib/tls/i686/cmov/libc-2.11.1.so
b70da000-b70db000 ---p 00153000 08:02 229865
/lib/tls/i686/cmov/libc-2.11.1.so
b70db000-b70dd000 r-xp 00153000 08:02 229865
/lib/tls/i686/cmov/libc-2.11.1.so
b70dd000-b70de000 rwxp 00155000 08:02 229865
/lib/tls/i686/cmov/libc-2.11.1.so
b70de000-b70e2000 rwxp 00000000 00:00 0
b70e2000-b70ff000 r-xp 00000000 08:02 229996
/lib/libgcc_s.so.1
b70ff000-b7100000 r-xp 0001c000 08:02 229996
/lib/libgcc_s.so.1
b7100000-b7101000 rwxp 0001d000 08:02 229996
/lib/libgcc_s.so.1
b7101000-b71ea000 r-xp 00000000 08:02 1428238
/usr/lib/libstdc++.so.6.0.13
b71ea000-b71eb000 ---p 000e9000 08:02 1428238
/usr/lib/libstdc++.so.6.0.13
b71eb000-b71ef000 r-xp 000e9000 08:02 1428238
/usr/lib/libstdc++.so.6.0.13
b71ef000-b71f0000 rwxp 000ed000 08:02 1428238
/usr/lib/libstdc++.so.6.0.13
b71f0000-b71f7000 rwxp 00000000 00:00 0
b71f7000-b721b000 r-xp 00000000 08:02 229900
/lib/tls/i686/cmov/libm-2.11.1.so
b721b000-b721c000 r-xp 00023000 08:02 229900
/lib/tls/i686/cmov/libm-2.11.1.so
b721c000-b721d000 rwxp 00024000 08:02 229900
/lib/tls/i686/cmov/libm-2.11.1.so
b721d000-b7232000 r-xp 00000000 08:02 229918
/lib/tls/i686/cmov/libpthread-2.11.1.so
b7232000-b7233000 r-xp 00014000 08:02 229918
/lib/tls/i686/cmov/libpthread-2.11.1.so
b7233000-b7234000 rwxp 00015000 08:02 229918
/lib/tls/i686/cmov/libpthread-2.11.1.so
b7234000-b7236000 rwxp 00000000 00:00 0
b7236000-b7241000 r-xp 00000000 08:02 232983
/lib/libpam.so.0.82.2
b7241000-b7242000 r-xp 0000a000 08:02 232983
/lib/libpam.so.0.82.2
b7242000-b7243000 rwxp 0000b000 08:02 232983
/lib/libpam.so.0.82.2
b7243000-b724c000 r-xp 00000000 08:02 229877
/lib/tls/i686/cmov/libcrypt-2.11.1.so
b724c000-b724d000 r-xp 00008000 08:02 229877
/lib/tls/i686/cmov/libcrypt-2.11.1.so
b724d000-b724e000 rwxp 00009000 08:02 229877
/lib/tls/i686/cmov/libcrypt-2.11.1.soAborted

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:                                              *
* Users running xtree on a query running on the server         *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* Xtree may crash if the same query is rerun in the same       *
* session                                                      *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to 11.50.xC8                                         *
****************************************************************

    



Problem conclusion


    

  • Fixed in 11.50.xC8

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IC69308
    • 

  • Reported component name
    IBM IDS ENTRP E
    • 

  • Reported component ID
    5724L2304
    • 

  • Reported release
    B15
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2010-06-17
    • 

  • Closed date
    2011-01-20
    • 

  • Last modified date
    2011-01-20
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    IBM IDS ENTRP E
    • 

  • Fixed component ID
    5724L2304
    • 



Applicable component levels


    

  • RB15  PSN
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B15","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            20 January 2011
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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