top Segmentation faulting on 8.0p2 amd64 (nss_ldapd problem?)

[Mikolaj Golub]

On Sat, 23 Jan 2010 02:02:04 +0100 Harald Schmalzbauer wrote:

> gdb /usr/bin/top top.core
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
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> This GDB was configured as "amd64-marcel-freebsd"...
> Core was generated by `top'.
> Program terminated with signal 11, Segmentation fault.
> Reading symbols from /lib/libncurses.so.8...done.
> Loaded symbols for /lib/libncurses.so.8
> Reading symbols from /lib/libm.so.5...done.
> Loaded symbols for /lib/libm.so.5
> Reading symbols from /lib/libkvm.so.5...done.
> Loaded symbols for /lib/libkvm.so.5
> Reading symbols from /lib/libc.so.7...done.
> Loaded symbols for /lib/libc.so.7
> Reading symbols from /usr/local/lib/nss_ldap.so.1...done.
> Loaded symbols for /usr/local/lib/nss_ldap.so.1
> Reading symbols from /libexec/ld-elf.so.1...done.
> Loaded symbols for /libexec/ld-elf.so.1
> bt:
> #0  0x0000000800d08403 in __nss_compat_gethostbyname () from
> /usr/local/lib/nss_ldap.so.1
> #0  0x0000000800d08403 in __nss_compat_gethostbyname () from
> /usr/local/lib/nss_ldap.so.1
> #1  0x0000000800d0606f in _nss_ldap_getpwent_r () from
> /usr/local/lib/nss_ldap.so.1

It is worth rebuilding and installing nss_ldap.so with debugging symbols.

> #2  0x00000008009ffc54 in __nss_compat_getpwent_r () from /lib/libc.so.7
> #3  0x0000000800a84a3d in nsdispatch () from /lib/libc.so.7
> #4  0x0000000800a50976 in getpwent_r () from /lib/libc.so.7
> #5  0x0000000800a50596 in sysctlbyname () from /lib/libc.so.7

And may be libc.so :-)

> #6  0x0000000000406c6d in machine_init (statics=0x7fffffffea30,
> do_unames=1 '\001')
>     at /usr/src/usr.bin/top/machine.c:257
> #7  0x0000000000407a10 in main (argc=1, argv=0x7fffffffeb08)
>     at /usr/src/usr.bin/top/../../contrib/top/top.c:458
>
> I'm using nss_ldapd-0.7.2 and there's no way to live without ldap...

-- 
Mikolaj Golub