I ran into the same Problem in SuSE 7.0 .
Turned out it was pam_limits.so , try if it works if you comment out the
line with pam_limits.so in it in /etc/pam.d/su .
You probably have to recompile the pam libraries.
-- Tobias PGP: 0x9AC7E0BC - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/