pthread_t is defined as of type 'unsigned long int'. RLS is logging these using
'%d'. On FC2/3 machines, the thread ids are logged with negative values. '%lu'
is the right format specifier.

diff -r old/misc.c new/misc.c
80c80
<     syslog(level, "T%d: %s", (int) pthread_self(), buf);
---
>     syslog(level, "T%lu: %s", (unsigned long int) pthread_self(), buf);
83c83
<     globus_libc_printf("%s T%d: %s\n", tbuf, (int) pthread_self(), buf);
---
>     globus_libc_printf("%s T%lu: %s\n", tbuf, (unsigned long int)
pthread_self(), buf);

diff -r old/server.c new/server.c
3434c3434
<     logit(LOG_DEBUG, "startthread: id %d num %d", thr, numthreads);
---
>     logit(LOG_DEBUG, "startthread: id %lu num %d", thr, numthreads);