Re: 21.5.10 ldap crash on Solaris 8

Raymond Toy <toy(a)rtp.ericsson.se&gt;, on Wed, 15 Jan 2003 at 12:05:00 -0500 (EST) you wrote: Well I have good news and bad news. The good news is that it works fine for me on Linux. The bad news is that it works fine for me on Linux. That means that I have to hunt up a Sun machine to try to reproduce your situation. Your crash is weird, though. Check this out. Here's the context, a piece of function ldap_sasl_bind: /* create a message to send */ if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) { ld->ld_errno = LDAP_NO_MEMORY; return ld->ld_errno; } assert( LBER_VALID( ber ) ); The LBER_VALID macro is defined in liblber/lber-int.h as follows: #define LBER_VALID(ber) ((ber)->ber_valid==LBER_VALID_BERELEMENT) ldap_alloc_ber_with_options is defined in request.c. It is a thin wrapper around this: ber_alloc_t( ld->ld_lberoptions )) The wrapper just checks for memory allocation failures. Now ber_alloc_t is defined in liblber/io.c: BerElement * ber_alloc_t( int options ) { BerElement *ber; ber_int_options.lbo_valid = LBER_INITIALIZED; ber = (BerElement *) LBER_CALLOC( 1, sizeof(BerElement) ); if ( ber == NULL ) { return NULL; } ber->ber_valid = LBER_VALID_BERELEMENT; ber->ber_tag = LBER_DEFAULT; ber->ber_options = options; ber->ber_debug = ber_int_debug; assert( LBER_VALID( ber ) ); return ber; } In short, the same assertion succeeded in ber_alloc_t just before it failed in ldap_sasl_bind, and the contents of the BerElement were not touched in between. So this isn't the real failure. Whatever is really causing the problem isn't getting tickled on my Linux machine. Are your LDAP libraries built with debug symbols? If so, could you try the following? (1) Set a breakpoint on ldap_sasl_bind. (2) When you hit the breakpoint, step down into ber_alloc_t, and step to the assert. (3) Set a watchpoint on ber. (4) Continue. Watch, the problem won't happen while running under debugger control... -- Jerry James, who notes the OpenLDAP developers must be using 4-space tabs http://www.ittc.ku.edu/~james/