FreeBSD cvs-src summary for 21/03/04 to 28/03/04 ++++++++++++++++++++++++++++++++++++++++++++++++ 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 ============ truss enhanced to decode more structures ---------------------------------------- David Malone (dwmalone) committed code to truss, which traces the system calls a program is executing, that allows it to decode many structures passed to and from system calls, producing more useful output. The code was initially contributed by Dan Nelson in `PR 52190`_, and has been modified somewhat by David. .. _`PR 52190`: http://www.freebsd.org/cgi/query-pr.cgi?pr=52190 http://docs.freebsd.org/cgi/mid.cgi?200403231237.i2NCb3vw085027 Build target added to build the toolchain only ---------------------------------------------- Ruslan Ermilov (ru) added a target to the system Makefile called "toolchain", which does the same thing as buildworld, but stops before actually building the world; i.e., it rebuilds only the tools and libraries. With these changes, individual parts of world can be built alone, or the kernel can be built without the world. To find out how to do this, see a `follow-up from Ruslan`. The toolchain target should be used only if you're sure you know what you're doing; the only supported upgrade path is still as `documented in the Handbook`. .. _`follow-up from Ruslan`: http://docs.freebsd.org/cgi/mid.cgi?20040324151245.GD42844 .. _`documented in the Handbook`: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html http://docs.freebsd.org/cgi/mid.cgi?200403240826.i2O8QMoF087714 Multicast group support added to netstat ---------------------------------------- Bruce M. Simpson (bms) added support to netstat to print the multicast groups that the system belongs to. This function is called automatically when netstat is used, so no new command-line flags are necessary. http://docs.freebsd.org/cgi/mid.cgi?200403250843.i2P8hx6g047670 pkill and pgrep commands added ------------------------------ Garance A. Drosehn added the pkill and pgrep commands from NetBSD, applying a number of patches written by Mario Sergio Fujikawa Ferreira (lioux) for the sysutils/pkill port. pgrep is used to search the process table on the system, like ps | grep, and pkill is used to kill processes matching a given pattern, like killall. http://docs.freebsd.org/cgi/mid.cgi?200403251908.i2PJ8m91006049 =============== Notable changes =============== debug.mpsafenet temporarily out of order ---------------------------------------- Robert Watson (rwatson) added the following note to UPDATING: The debug.mpsafenet tunable controls whether the kernel Giant lock is held across the lower levels of the network stack, and by default is turned off. In the few days following 20040322, the behavior of debug.mpsafenet will change such that this tunable controls Giant over all levels of the network stack. If you are currently setting debug.mpsafenet to 1, you should set it back to 0 (the default) again during the change-over. An additional note will be added to UPDATING when sufficient locking is merged to permit this to take place. http://docs.freebsd.org/cgi/mid.cgi?200403221637.i2MGbXxb090535 UTF-8 versions added for all supported locales ---------------------------------------------- Tim J. Robbins (tjr) committed Unicode UTF-8 versions of all of the supported system locales. The UTF-8 locales were previously available in Hye-Shik Chang (perky)'s misc/utf8locale port. Most of the work for this commit was done by Hye-Shik in that port. For a precise list of the exact locales affected, please see the commit message below. http://docs.freebsd.org/cgi/mid.cgi?200403270814.i2R8EGiO061708 Diskless boot system split up ----------------------------- Brooks Davis (brooks) split the diskless rc script, which sets up filesystems for a diskless system, into hostname, resolve, tmp, and var pieces. He has also improved the scripts to create /tmp and /var automatically if they aren't writable, rather than triggering when / is NFS mounted. http://docs.freebsd.org/cgi/mid.cgi?200403232322.i2NNMZLe056410 Major Firewire enhancements; also MFC'ed ---------------------------------------- Hidetoshi Shimokawa (simokawa) committed many enhancements to the Firewire code, improving compatibility with 4.x and DragonFly BSD, improving device probing, and fixing other bugs in both the Firewire and the SBP-2 (serial Bus Protocol) support required for Firewire-based storage devices. This work was also merged to 4.x. http://docs.freebsd.org/cgi/mid.cgi?200403262317.i2QNHBgY030234 i386 pipe performance significantly improved -------------------------------------------- Alan Cox (alc) removed some unnecessary code from the pipe system, adjusting the optimized case. This eliminates the sysctls kern.ipc.maxpipekvawired and kern.ipc.amountpipekvawired, and speeds up pipes on i386 significantly. For instance, on a 2.4GHz Xeon, Alan saw the pipe bandwidth increase from 1050 MB/s to 1850 MB/s. http://docs.freebsd.org/cgi/mid.cgi?200403271950.i2RJoN9P033780 Most PicoBSD floppy image scripts removed ----------------------------------------- Luigi Rizoz (luigi) removed the net, router, isp, and dial floppy types for PicoBSD, a compact build of FreeBSD. In -CURRENT, only a single base floppy type will be supported, with users building on that to suit their needs. http://docs.freebsd.org/cgi/mid.cgi?200403240751.i2O7peAO079157 http://docs.freebsd.org/cgi/mid.cgi?200403240753.i2O7rCg0079966 http://docs.freebsd.org/cgi/mid.cgi?200403240754.i2O7s0mH080045 http://docs.freebsd.org/cgi/mid.cgi?200403240755.i2O7t9Nq080220 ================= Discussion topics ================= doscmd moved from base system to ports tree ------------------------------------------- Dag-Erling Smorgrav removed doscmd, a basic DOS emulator, from the base system, since it has been moved to ports. This sparked a few threads of confusion. David O'Brien (obrien) asked whether there was really consensus for the change; Dag-Erling said that there had been. Garance A. Drosihn (gad) disagreed, saying that he had thought it was going to stay until 6.0. Julian Elischer agreed with Garance. Doug Barton (dougb) gave his impression of the conversation, ending with Tim J. Robbins (tjr)'s suggestion that waiting until 6.0 could work, but if that wasn't the plan, doscmd should be removed before 5.3. Julian, John Baldwin (jhb), and Tim followed up, saying that each had different impressions of the original discussion, but that they all agreed that doscmd should stay gone. Garance and Dag-Erling also posted their impressions of the initial discussion, differing again on the details, but again not arguing that doscmd should return. Alexey Dokuchaev (danfe) expressed his disappointment at the removal, since he had planned to improve doscmd. Dag-Erling clarified that doscmd is still available in the projects repository; Alexey answered that he had missed that. http://docs.freebsd.org/cgi/mid.cgi?200403232227.i2NMRQn5042762 ================= Committer changes ================= Wilko Bulte (wilko), acting as the core secretary, moved Hiten Pandya (hmp) from being a doc-only committer to a src committer. Dag-Erling Smorgrav (des) will be his mentor. http://docs.freebsd.org/cgi/mid.cgi?200403231935.i2NJZ4BU098762 =================== Important bug fixes =================== Local denial-of-service bug in VM system fixed ---------------------------------------------- Tim J. Robbins (tjr) fixed a bug in the VM code that allowed a user to force the kernel to allocate an unlimited amount of memory, causing a panic or system hang. Tim has also seen the bug occur without any malicious user input. I'm not sure whether other FreeBSD versions are affected by the bug. http://docs.freebsd.org/cgi/mid.cgi?200403230837.i2N8bZe4025918 Crash when using setsockopt on IPv6 sockets eliminated ------------------------------------------------------ Hajimu Umemoto committed a fix to the IPv6 code that prevents a crash when setsockopt() is given invalid parameters. Before the fix, regular users could crash the system using setsockopt() on v6 sockets. This problem was reported by Katsuhisa ABE in `PR 61513`_. .. _`PR 61513`: http://www.freebsd.org/cgi/query-pr.cgi?pr=61513 http://docs.freebsd.org/cgi/mid.cgi?200403261952.i2QJqIrp078521 Information leak in process separation fix MFC'ed ------------------------------------------------- Pawel Jakub Dawidek (pjd) MFC'ed the fix to the information leak problem `mentioned last week`_. Again, this fix prevents processes from circumventing restrictions on seeing one another. .. _`mentioned last week`: http://excel.xl0.org/FreeBSD/21-03-04.html#information-leak-in-process-separation-fixed http://docs.freebsd.org/cgi/mid.cgi?200403262207.i2QM7SPX014969 =============== Other bug fixes =============== Bill Paul (wpaul) committed a fix to the VM subsystem that allows threads to be created with extra stack pages. This bug was preventing his fixing the `problem with the Intel Centrino 2200BG`_ wireless networking chip mentioned last week. With the VM problem fixed, the Centrino problem has been eliminated. .. _`problem with the Intel Centrino 2200BG`: http://excel.xl0.org/FreeBSD/21-03-04.html#other-bug-fixes http://docs.freebsd.org/cgi/mid.cgi?200403220028.i2M0ScPc047763 Thomas Moestl (tmm) fixed the isp driver, supporting Qlogic-based SCSI and fibre channel cards, to work properly on Sparc-64-based systems. The problem was reported, and the fix tested, by Marius Strobl. http://docs.freebsd.org/cgi/mid.cgi?200403232341.i2NNfdlU060190 Bruce M. Simpson (bms) fixed the madvise() system call to work under Linux binary emulation; it was previously unimplemented. The fix was submitted by Matthias Schuendehuette, who reports that it makes the Linux binaries of StarOffice 7.0 work. http://docs.freebsd.org/cgi/mid.cgi?200403282143.i2SLhRK6021263 Max Laier (mlaier) imported fixes to the PF packet filter from OpenBSD's stable branch. The first fix makes binat work for incoming connections when a netblock is used as the source in the rule, and the second corrects a kernel panic when an anchor ruleset is empty. The first bug was reported to OpenBSD by Karl O. Pinc. http://docs.freebsd.org/cgi/mid.cgi?200403281931.i2SJVnQc086555Received on Sun Mar 28 2004 - 20:01:01 UTC
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