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Re: [nssldap] Segmentation Faults for Ldap Accounts

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Re: [nssldap] Segmentation Faults for Ldap Accounts

On Fri, 11 Apr 2008, Jim Summers wrote:


Here is the output from ldd on the pjm ( brightq ) binary:

ldd pjm
       linux-gate.so.1 =>  (0x00110000)
       libutil.so.1 => /lib/libutil.so.1 (0x004be000)
       libnsl.so.1 => /lib/libnsl.so.1 (0x00a92000)
       libresolv.so.2 => /lib/libresolv.so.2 (0x00320000)
       libdl.so.2 => /lib/libdl.so.2 (0x00c90000)
       libXi.so.6 => /usr/lib/libXi.so.6 (0x00235000)
       libXext.so.6 => /usr/lib/libXext.so.6 (0x00136000)
       libX11.so.6 => /usr/lib/libX11.so.6 (0x00cd8000)
       libm.so.6 => /lib/libm.so.6 (0x00c65000)
       libc.so.6 => /lib/libc.so.6 (0x00b0a000)
       /lib/ld-linux.so.2 (0x00aeb000)
       libXau.so.6 => /usr/lib/libXau.so.6 (0x00cd3000)
       libxcb-xlib.so.0 => /usr/lib/libxcb-xlib.so.0 (0x00ccf000)
       libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00dd6000)
       libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00cc7000)

and from nss_ldap.so:

ldd libnss_ldap.so
       linux-gate.so.1 =>  (0x00110000)
       libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x00167000)
       libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x00180000)
       libssl.so.6 => /lib/libssl.so.6 (0x001ae000)
       libdl.so.2 => /lib/libdl.so.2 (0x001f3000)
       libnsl.so.1 => /lib/libnsl.so.1 (0x001f8000)
       libresolv.so.2 => /lib/libresolv.so.2 (0x00211000)
       libc.so.6 => /lib/libc.so.6 (0x00225000)
       libcrypt.so.1 => /lib/libcrypt.so.1 (0x0037e000)
       libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x003b0000)
       libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x00443000)
       libcom_err.so.2 => /lib/libcom_err.so.2 (0x00469000)
       libkrb5support.so.0 => /usr/lib/libkrb5support.so.0 (0x0046c000)
       libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x00475000)
       libcrypto.so.6 => /lib/libcrypto.so.6 (0x00478000)
       libz.so.1 => /lib/libz.so.1 (0x005ab000)
       /lib/ld-linux.so.2 (0x00aeb000)
       libselinux.so.1 => /lib/libselinux.so.1 (0x005be000)
Could it be that since pjm does not have any of the crypt, sasl, ssl stuff compiled in, that it is getting something that is encrypted and can not handle it correctly? If so, how would this be remedied? 

Those look fine to me, unless pjm is dynamicly loading an SSL library.
I think I am going to look and see if there are compat packages that may be missing. 

Ideas / Suggestions?
What about turning off SSL in nss-ldap temporarily? That could narrow the problem down. Also, you could run strace on pjm and see which system call actually segfaults it. 

        Andy