Re: Assert Failed / Segmentation violation

SH Lim wrote: > > Hi, > Does anyone know exactly what is the meaning of : > Assert Failed: Internal Error - Segmentation Violation> Who - doesn't really matter in this case as my users would not have done > anything unusual wih the server/database throught the applications. > OnLine must abort and has to be reinitialized manually. > > Could this be caused by an unsuccessful attempt to dynamically > allocate a new shared memory or a known bug ?? > > Some background info: Informix OnLine v 7.23.UC7 > AIX 4.2.1 > Memory size 512 MB > SHMVIRTSIZE 46384 > SHMADD 16384 > Average memory usage ~ 136MB That Assertion Failure can be caused by any of several bugs in 7.23 that were fixed in 7.24UC5+. It can also be caused by an ESQL/C application with a shared memory connection corrupting shared memory. This can be caused by free()ing malloc() memory that is already free()d, by free()ing static or local variables, by EXEC SQL FREEing a statement that is still in use by an open CURSOR, by repeatedly re-opening a CURSOR without CLOSING it first, by over writting array bounds, by accessing an uninitialized pointer containing a garbage address, by writing to the members of the sqlca structure, et cetera, et cetera, ... Get the upgrade, if the problem persists try switching applications to a network or pipe connection so that they crash instead of the engine. Art S. Kagel