Most recent kernel where this bug did not occur: 2.6.17 Hardware Environment: Intel 440BX Software Environment: Linux Debian 3.1 (Sarge) Problem Description: Unable to build 3-rd party drivers using serial I/O devices Steps to reproduce: Try to build on i386 the latest Lucent/Agere modem drivers - http://linmodems.technion.ac.il/packages/ltmodem/kernel-2.6/agrsm-20070804.tar.gz .
Problems with external modules are off-topic here. Please report this to the vendor of your module.