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Subject: Segfault when receiving ( some ) errors from Netezza
Date: Mon, 26 Oct 2015 13:45:06 +1100
To: bug-DBD-ODBC@rt.cpan.org
From: Daniel Kasak <d.j.kasak.dk@gmail.com>

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On Sun Oct 25 22:45:24 2015, d.j.kasak.dk@gmail.com wrote:
Show quoted text
> I have a tricky issue. When some SQL returns an error, I get a > segfault in > my application. I don't have a definitive list of error types that can > trigger it, but invalid 'create table' SQL *with* new-lines in the SQL > is > an easy way to replicate the error. For example, the SQL *without* > new-lines:
The odbc trace line [ODBC][5562][1445826945.819834][/var/tmp/portage/dev-db/unixODBC-2.3.2-r2/work/unixODBC-2.3.2/DriverManager/SQLExecDirect.c][503] Exit:[SQL_ERROR] suggests SQLExecDirect has completed suggesting it is segfaulting in DBD::ODBC or Perl. You didn't mention what version of Perl, and DBI and DBD::ODBC you are using. If you are using old versions it might be worth you upgrading. However, before you do that you should try this: If you've got recentish versions of DBI and DBD::ODBC: export DBI_TRACE=DBD=x.log now run your perl which seg faults. what is in x.log. If nothing much in the log your DBI/DBD::ODBC are probably too old so do this: export DBI_TRACE=15=x.log now run your perl which seg faults what is in x.log. Do: which perl (it will output something like /usr/bin/perl) whatever this outputs now do gdb where_your_perl_is when you get a prompt from gdb type run myperlscript.pl when it segfaults type bt and show me the output Martin -- Martin J. Evans Wetherby, UK


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