| 2:21p |
Security updates for Thursday
Security updates have been issued by Debian (firefox-esr, sympa, thunderbird, tomcat8, and xerces-c), Fedora (fprintd, kernel, libfprint, and synergy), Mageia (bitcoin, dpic, firefox, jasper, jupyter-notebook, sam2p, thunderbird, and x11-server), Oracle (firefox, gd, kernel, net-snmp, openssl, python-rtslib, samba, and targetcli), Red Hat (fapolicyd, openshift, Red Hat Virtualization, and web-admin-build), SUSE (xen), and Ubuntu (unzip). |
| 7:04p |
[$] Managing multifunction devices with the auxiliary bus Device drivers usually live within a single kernel subsystem. Sometimes, however, developers need to handle functionalities outside of this model. Consider, for example, a network interface card (NIC) exposing both Ethernet and RDMA functionalities. There is one hardware block, but two drivers for the two functions. Those drivers need to work within their respective subsystems, but they must also share access to the same hardware. There is no standard way in current kernels to connect those drivers together, so developers invent ad-hoc methods to handle the interaction between them. Recently, Dave Ertman posteda patch set introducing a new type of a bus, called the "auxiliary bus", to address this problem. |