nss_ldap broken

[Sean McNeil]

On Fri, 2004-03-26 at 04:59, Jacques A. Vidrine wrote:

> Hmm, it does seem that there is an error situation where that could
> be the case, but the problem description above doesn't follow from
> that case.  The patch will fix it.  (The situation would occur if
> /etc/nsswitch.conf existed, but was not readable.)
> 
> > Does anyone have any insight into what this might be?  I would love to
> > have it working again.
> 
> I will try to reproduce here.  So far no luck.

Interesting!!! Not what I had thought was going on.  I compiled libc
with symbols and I get this:

#0  0x28214800 in ?? ()
#1  0x2816be35 in nss_atexit () at
/usr/src/lib/libc/net/nsdispatch.c:518
#2  0x2818e9db in __cxa_finalize (dso=0x0)
    at /usr/src/lib/libc/stdlib/atexit.c:184
#3  0x2818e6fc in exit (status=672827136) at
/usr/src/lib/libc/stdlib/exit.c:69
#4  0x08049b68 in free () at /usr/src/lib/libc/stdlib/malloc.c:1153
#5  0x08049279 in free () at /usr/src/lib/libc/stdlib/malloc.c:1153

So even though the write lock didn't cause a crash the unlock did.

I didn't try your patch as it looked like the locks were being
appropriately handled.  Here is the real odd part:

passwd: ldap files
group: ldap files

works (no seg 11)!!

passwd: files ldap
group: files ldap

fails (seg 11)!!

Cheers,
Sean