[OpenAFS] RHEL4 x86_64 1.4.0-rc5 RPM install aklog segfault

Ken Hornstein kenh@cmf.nrl.navy.mil
Thu, 26 Jan 2006 13:02:58 -0500

>For the record, the most recent candidate (1.4.1rc5) still has this problem.
>By accident I found out that if I compile the aklog rpm (openafs-krb5) 
>with my locally built gcc 4.0.2 I don't get the segfault.  If I compile 
>aklog with RH's gcc 3.4.4 (required for the kernel module to work) it 
>Ticket #23845 has been updated with another backtrace as well as this 
>little morsel of information.

The traditional reason this would happen was because we were using
a bare NULL without the appropriate cast to (void *) when we were
calling krb5_build_principal() (which is a varargs function).  But
that got fixed ... the trailing NULL is now cast to (void *) properly
when aklog calls krb5_build_principal().

I suspect the only way for you to debug this is to compile with full
debugging symbols for both aklog and the Kerberos library.