Re: Netscape NSAPI Informix application core dump on HP-UX

I also had 'SIGSEGV' error from make (c4gl) after applying HP's Y2K patch bundle. HP Response centre are sending me two patches to cure the problem (hopefully, until I get them on I can't verify they fix the problem): PHSS_15444 (C/ANSI C) PHSS_15380 (DLD Dynamic linker) You may want to get these patches to try (assuming you haven't already). In article <72cqt9$88h$1@nnrp1.dejanews.com>, jonegan@my-dejanews.com writes >We are modifying our application to be Y2K compliant by upgrading all the >layered products our application depends on. > >Our application formerly ran on HP-UX 9.04, Netscape Commerce Server 1.1, and >Informix 7.11.UC1. We need to run it on HP-UX 10.20 using Informix 7.23.UC11 >and Netscape Enterprise Server 3.5.1. Several other projects will run on the >same servers, so we don't have the option of changing that configuration. > >The application is a server plugin (NSAPI) that uses ESQL/C to access data >from an Informix database. The server runs the plug-in in a thread, so we >have compiled our Informix ESQL/C code with the -thread compiler option to >generate thread-safe code. > >We did a "clean" installation of the Netscape Server - no previous version of >the server existed on the box before the installation. We were having core >dumps, which would bring down the server port. We added some patches that >Netscape recommended, one of which would restart the port after a core dump. >The patches we added were 3.5.1B, 3.5.1D, and 3.5.1G. > >With the patches installed, we got warnings in the Netscape server log file >about a mismatch between versions of the Netscape executable and the shared >library. At that point we had fixed some problems that should have been the >source of the earlier core dumps, but our application was still core dumping. >We suspected the patches and reinstalled the Netscape server without them. >The warning message in the log file no longer appeared, and we were still >core dumping. > >We added one patch back that we were sure we would need - the 3.5.1D patch, >the one that restarts the server after a core dump. Adding this patch did >not reintroduce the warning in the log file, so we have kept this patch, but >not the others. > >We have analyzed the core file (strings core >core.strings) and found the >following messages: > > /usr/lib/dld.sl > ERROR: mmap failed for dld.sl > terminated, shutting down > caught SIGSEGV or SIGBUS, trying to dump core in current directory > >We put in tracing code that would display the progress of the code up to the >point of the core dump. We determined that the code runs fine until we hit >our first ESQL/C line: > > EXEC SQL DATABASE :database; > >and core dumps immediately. We have tried replacing this line with an >explicit connection to the database: > > EXEC SQL CONNECT TO :database as 'con1'; > >and we still got the core dump on that line. > >We have looked in the Informix logs and found nothing suspicious. > >Is there: Some Informix configuration option we are missing? Some trick to >installing Netscape Server 3.5.1 (have previous version first, etc?) >Anything we need to do to our NSAPI code (designed for Commerce server 1.1) >to make it work with Enterprise server 3.5.1? Some HP-UX configuration we're >missing? > >-- >-- Jon Egan > >-----------== Posted via Deja News, The Discussion Network ==---------- >http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own -- Simon Barber