FreeBSD cvs-src summary for 11/04/04 to 18/04/04 ++++++++++++++++++++++++++++++++++++++++++++++++ This is a regular weekly summary of FreeBSD's cutting-edge development. It is intended to help the FreeBSD community keep up with the fast-paced work going on in FreeBSD-CURRENT by distilling the deluge of data from the CVS mailing list into a (hopefully) easy-to-read newsletter. This newsletter is marked up in reStructuredText_, so any odd punctuation that you see is likely intended for the reST parser. .. _reStructuredText: http://docutils.sourceforge.net/rst.html You can get old summaries, and an HTML version of this one, at http://www.xl0.org/FreeBSD/. Please send any comments to Mark Johnston (mark at xl0.org). For Lukasz Dudek and Szymon Roczniak's Polish translations of these summaries, which may lag the English ones slightly, please see http://mocart.pinco.pl/FreeBSD/. .. contents:: ============ New features ============ Support for alternate backup media in dump/restore -------------------------------------------------- Brian Feldman (green) added support to dump and restore for a -P argument that specifies a command line that will be run to write or read the data. This allows support of non-file/tape media where the backup will be split across multiple volumes. His commit message gives an example of backing up a slice to multiple DVD+Rs using the new syntax. http://docs.freebsd.org/cgi/mid.cgi?200404130258.i3D2w7WC034439 Speedups for all Promise cards and support for the Promise SX4/SX4000 --------------------------------------------------------------------- Soeren Schmidt (sos) updated the ATA code to support the Promise command sequencer present on all modern Promise cards. This reduces command overhead on the Promise cards by 5-8%, and also makes the SX4/SX4000 work in RAID 0, 1, and 0+1 modes. Work is underway to support the sequencer in RAID, which is expected to speed up RAID significantly on the Promise controllers. http://docs.freebsd.org/cgi/mid.cgi?200404130944.i3D9iLuh037221 Netgraph ng_hub node added -------------------------- Ruslan Ermilov (ru) added a new Netgraph node type named ng_hub that acts like an Ethernet hub, distributing incoming packets to all nodes that are connected to it. http://docs.freebsd.org/cgi/mid.cgi?200404171242.i3HCgHOi094719 ACPI-CA 20040402 imported ------------------------- Nate Lawson (njl) imported version 20040402 of Intel's ACPI-CA distribution, which is used by the system to work with the ACPI (Advanced Configuration and Power Interface) code on newer PCs. This version reduces the likelihood of system control interrupt storms. Kevin Oberman also reports that it fixed a sound problem on his Thinkpad T30. http://docs.freebsd.org/cgi/mid.cgi?200404140210.i3E2AnLT081447 bsnmpd 1.6 imported ------------------- Hartmut Brandt (harti) imported bsnmpd version 1.6. bsnmpd is a lightweight SNMP server used by the ATM implementation. http://docs.freebsd.org/cgi/mid.cgi?200404141620.i3EGKF4j093848 umct driver merged from -CURRENT -------------------------------- Robert Watson (rwatson) merged the umct driver, for MCT and Belkin USB-serial adapters, to 4.x. The driver was originally written by Scott Long (scottl), based on the ubsa driver by Alexander Kabaev (kan), with some documentation from the Linux mct_u232 driver. http://docs.freebsd.org/cgi/mid.cgi?200404130339.i3D3dH6N043852 Support for Linksys EG1032 and D-Link DGE-530T merged from -CURRENT ------------------------------------------------------------------- Stephen McKay (mckay) merged enhancements to the sk driver, for SysKonnect Ethernet interfaces, to 4.x. The driver now supports the Linksys EG1032 and D-Link DGE-530T cards. Some of the changed code was obtained from OpenBSD and NetBSD. http://docs.freebsd.org/cgi/mid.cgi?200404150724.i3F7OLg4097189 Support added for HP Modular Smart Array 20 and 500 --------------------------------------------------- Paul Saab changed the ciss SCSI-3 driver to support the HP Modular Smart Array 20 and 500 storage arrays. This support mostly involved adding support for proxy SCSI controllers that send commands to devices located behind them. http://docs.freebsd.org/cgi/mid.cgi?200404162300.i3GN02gg078145 =============== Notable changes =============== Sound code fixed to actually use MPSAFE flags --------------------------------------------- Brian Feldman (green) fixed a bug in the pcm headers that was causing sound drivers to always use the Giant lock, even when marked safe to use without it. He has reset all of the drivers so they are not marked safe, since they weren't actually tested because of the bug. The fix also increases the priority of the sound driver code, which may improve sound performance. This problem was pointed out by Yuriy Tsibizov. http://docs.freebsd.org/cgi/mid.cgi?200404141457.i3EEvo7h069562 ================= Discussion topics ================= Upgrading GDB ------------- David O'Brien (obrien) tweaked a GDB header file to fix a problem that would not be present in GDB 6, spurring a discussion on upgrading the system GDB. Marcel Moolenaar (marcel) started by mentioning that he has the GDB 6.1 pre-release in perforce, and plans to import it alongside the current GDB 5.2 when GDB 6.1 is released. If it is stable enough, he proposes GDB 5.2 be removed before FreeBSD 5.3 is released. David responded, asking him to import GDB 6 as the system gdb, replacing 5.2, and noting that he has the GDB 6 port working with full kernel debugging. Marcel replied, saying that there are too many dependencies to import GDB 6 as the system gdb and that he was planning to import it as gdb6 instead. He suggested reimporting version 6 as the system gdb once it was found to be stable. Marcel also explained that he had a different implementation strategy for kernel debugging under GDB. Sam Leffler (sam) agreed with David that having both gdb and gdb6 in the tree is a bad idea, and that testing should be finished outside the tree. M. Warner Losh (imp) brought up his recent experience with the PCI code, where the out-of-tree testing showed no major issues, but after it was committed, serious issues appeared. David reiterated his objection to having gdb6 in the tree, saying he would ask core to force a backout if it was imported and asking what dependencies required it to be in the tree. Marcel replied, listing the in-tree dependencies that cause problems testing GDB 6 outside the tree. A heated discussion was still ongoing at the time of this writing. http://docs.freebsd.org/cgi/mid.cgi?200404181609.i3IG9XA1099515 ================= Committer changes ================= Prafulla Deuskar (pdeuskar) introduced Tony Ackerman (tackerman), who will be taking over maintainership of the em driver and the upcoming Intel 10 gigabit Ethernet driver. http://docs.freebsd.org/cgi/mid.cgi?200404161925.i3GJPFe8025251 Marcel Moolenaar (marcel) introduced Marius Strobl (marius), who will be focussing on sparc64 support, among other things. http://docs.freebsd.org/cgi/mid.cgi?200404172105.i3HL5V4e018656 Chris Costello (chris) has returned his commit bit for safekeeping. http://docs.freebsd.org/cgi/mid.cgi?200404140652.i3E6ql6q050560 =================== Important bug fixes =================== CVS client and server vulnerabilities fixed ------------------------------------------- Jacques Vidrine (nectar) fixed vulnerabilities in the CVS client and server. The client vulnerability could allow a malicious CVS server to overwrite files on the client. The server vulnerability could allow clients to check out files from outside the CVSROOT. The vulnerabilities has been assigned CVE IDs CAN-2004-0180_ (client) and CAN-2004-0405_ (server), and are addressed by `FreeBSD-SA-04:07.cvs`_. The patches Jacques committed were submitted by Derek Robert Price. Later, Peter Wemm (peter) updated CVS to version 1.11.15. .. _CAN-2004-0180: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2004-0180 .. _CAN-2004-0405: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2004-0405 .. _`FreeBSD-SA-04:07.cvs`: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:07.cvs.asc http://docs.freebsd.org/cgi/mid.cgi?200404141640.i3EGeoYL098205 http://docs.freebsd.org/cgi/mid.cgi?200404150102.i3F125GV007383 Interrupt storm workaround added -------------------------------- John Baldwin (jhb) added code to the interrupt handler that checks for and works around interrupt storms by disabling interrupts that seem to be triggering too often. If an interrupt storm is detected in this way, a message will be displayed to the console. http://docs.freebsd.org/cgi/mid.cgi?200404162025.i3GKPe98045003 =============== Other bug fixes =============== M. Warner Losh (imp), with help from Soeren Schmidt (sos), added a workaround for PCI devices whose BAR (Base Address Register) always reads as 0. This fixes some VIA, AMD, nVidia, and ServerWorks south bridges and ATA controllers that would have broken with the big PCI update. http://docs.freebsd.org/cgi/mid.cgi?200404131931.i3DJVvf4081519 Bill Paul (wpaul) made some enhancements to his NDISulator code, improving support for the ADMtek Ethernet driver by making the code more closely match Windows in the way it handles spinlocks. http://docs.freebsd.org/cgi/mid.cgi?200404140748.i3E7m4HV067995 Maxime Henrion (mux) fixed the NFS server to report 0 free space instead of a huge value for a slice with negative free space (as reported by df.) http://docs.freebsd.org/cgi/mid.cgi?200404121302.i3CD2LUX030798Received on Sun Apr 18 2004 - 19:19:56 UTC
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