in reply to DB open segfault

Aside from posting the code, the excerpt from the Apache's error_log that shows the actual error message would help a lot too.

On the other hand, please note that BerkeleyDB files are platform dependent, so you can't use a BDB from a GNU/Linux box on a Solaris SPARC.

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Re^2: DB open segfault
by srfrogster (Initiate) on Jan 09, 2008 at 09:28 UTC
    Hi,
    the error message is: child pid xxxx exit signal Segmentation fault (11), possible coredump in /export/home, and it generates a core file.
    As I have wrote in the previous message, this error also appears when I execute in command line a simply perl script.

    About BDB, I downloaded the package from sunfreeware, selecting the one which is valid for x86/Solaris 10 (I forgot to tell you, the platform which I'm trying to run the cgi scripts is a x86)

    Thanks
[reply]
      Well, I think I have discovered "why". These are the steps I have followed:
      - The files I'm trying to open with "dbmopen/tie" have already data inside, but this info hasn't been generated in the server where I'm getting the error.
      - These files ".dir" and ".pag" where copied from a workstation to a server via ftp, because they contain useful info to keep
      - In the workstation (where these files where created and updated), with the same code as in the server, these files are opened and closed without problems.
      - But after doing the ftp (with the same lenght in both machines), the files transferred to the server are unreadable when I try to use a "dbmopen" or "tie" with them.
      - However, if I generate a perl script which creates and reads the content of ".dir" and ".pag" files, it runs ok.
      - So, without all these ".dir", ".pag" files which already contains info, all the cgi's are shown ok.


      I have analize deeply this situation in both machines, and here are the results:
      * Server (SunOS 5.10 - Spanish, Perl 5.8.4) --> The "dir/pag" files created in the workstation, doesn't work here
      * Workstation 1 (SunOS 5.8 - English, Perl 5.8.7) --> The "dir/pag" files created in the server, doesn't work here

      I also have checked the "dir/pag" files into other workstation:
      * Workstation 2 (SunOS 5.8 - English, Perl 5.8.6) --> The "dir/pag" files created in the server, doesn't work here; however, the files from Workstation 1, works fine.

      I'm afraid this could be a problem from the OS, what do you think?
[reply]
        In the workstation (where these files where created and updated), with the same code as in the server, these files are opened and closed without problems.
        Hence, it seems most probably a problem with the BDB version or platform.
        • First, please check the MD5 of the file on both hosts, so you're sure that are identical.
        • Then, see what file command says about the BDB file on each host.
        • Finally make sure that the BDB libraries have the same version.
        I'd bet that the server has a newer version than the workstations since it has Solaris 10.
[reply]
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