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From: "Seaman, Mark" <Mark dot Seaman at vtmednet dot org>
Subject: RE: Bus error using ctlib when in results loop
Date: Mar 13 2000 8:35PM
I haven't received any response to this message. Is there anything else I
can do to try to narrow down the possibilities? Is this a perl bug since it
happens in Carp? I have searched the perl bug DB and did not find any
matching problem reports. When the error occurs, I have 6 connections open.
Could this be a possible cause?
Thanks,
Mark Seaman
> -----Original Message-----
> From: Seaman, Mark
> Sent: Thursday, March 02, 2000 6:05 PM
> To: Sybperl mailing list (E-mail)
> Subject: Bus error using ctlib when in results loop
>
> I am writing a sybperl script to synchronize tables between our
> development and production databased. I am getting a BUS error and a core
> dump in a specific results loop. Here is the stack trace from the core
> file:
>
> #0 0xef5f48e8 in kill ()
> #1 0x944ac in Perl_apply ()
> #2 0x8d8c8 in Perl_pp_kill ()
> #3 0x998d8 in Perl_runops_standard ()
> #4 0x21b54 in perl_call_sv ()
> #5 0x55ecc in Perl_sighandler ()
> #6
> #7 0x58be8 in Perl_av_clear ()
> #8 0xef548c30 in describe ()
> #9 0xef549ca0 in servermsg_cb ()
> #10 0xef4c949c in ct__tds_call_cb ()
> #11 0xef4c9960 in ct__tds_xerror_final ()
> #12 0xef3f043c in com__async_runstack ()
> #13 0xef3f0398 in com__async_poll_state ()
> #14 0xef3f0198 in com__async_do_poll ()
> #15 0xef3efbc4 in com_async_poll ()
> #16 0xef49c384 in ct__api_async ()
> #17 0xef4bf6ec in ct_results ()
> #18 0xef551e08 in XS_Sybase__CTlib_ct_results ()
> #19 0x5fdd0 in Perl_pp_entersub ()
> #20 0x998d8 in Perl_runops_standard ()
> #21 0x21270 in perl_run ()
> #22 0x1edec in main ()
>
> My code looks like this:
>
> $bs_ret = 0;
> $dest_dbh->ct_execute($dest_sql_statement);
> while($dest_dbh->ct_results($bs_ret) == CS_SUCCEED) {
> next unless $dest_dbh->ct_fetchable($bs_ret);
> #ignore result of this
> } #while CS_SUCCEED
>
> If i step into the sybperl module, the bus error happens on this line:
>
> Sybase::CTlib::ct_results(/usr/local/lib/perl5/5.00503/Carp.pm:188):
> 188: $$msg;
>
> I am using sybperl 2.09 on Solaris 2.5.1 with perl 5.005-003. Any idea
> what could be causing this?
>
> Thanks,
>
> Mark
>
>
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