Here's the summary, slightly delayed to avoid unduly laboring on Labor Day. FreeBSD cvs-src summary for 30/08/04 to 06/09/04 ++++++++++++++++++++++++++++++++++++++++++++++++ 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 ============ VM subsystem now runs without Giant by default on i386 and amd64 ---------------------------------------------------------------- Alan Cox (alc) changed the value of the sysctl debug.mpsafevm to 1 by default on i386 and amd64. This means that the VM subsystem (specifically, copy-on-write and zero-fill faults) can run without the Giant system lock. You can disable this behavior by setting debug.mpsafevm to 0 in loader.conf. http://www.freebsd.org/cgi/mid.cgi?200409040551.i845ptF4071382 AutoFS automounting support added --------------------------------- Alfred Perlstein (alfred) committed autofs, which offers better system integration for automounting. The Amd automounting daemon usually uses a loopback NFS mount to communicate with the operating system; autofs gives it a faster, safer, and better-defined interface. Alfred is working with the developers of Amd to arrange for FreeBSD's autofs to be supported, as Linux's and Sun's are. http://www.freebsd.org/cgi/mid.cgi?200408311626.i7VGQ1Fx067559 Cypress CY7C637xx and CY7C640/1xx (DeLorme Earthmate GPS) support added ----------------------------------------------------------------------- Dag-Erling Smorgrav (des) added a driver for the Cypress CY7C637xx and CY7C640/1xx families of USB to serial bridges. Currently, the driver supports only the DeLorme Earthmate USB GPS. There is no support for flow control yet, and output does not work, although Dag-Erling notes that this may simply be because the Earthmate is a read-only device. http://www.freebsd.org/cgi/mid.cgi?200409050943.i859hlTB021613 =============== Notable changes =============== WITNESS gains its own sysctl branch ----------------------------------- John-Mark Gurney (jmg) moved the sysctls for the WITNESS debugging code into a new branch, debug.witness. Previously, the sysctls had been named similarly to debug.witness_example; they will now be debug.witness.example. http://www.freebsd.org/cgi/mid.cgi?200409062327.i86NRTV8001459 ================= Discussion topics ================= Trouble with the CVS scripts ---------------------------- This discussion spread across numerous commits, starting with Sheldon Hearn (sheldonh) committing a PCI vendor information file to 5.x. Scott Long (scottl) replied to Sheldon's commit, saying, "I'm quite surprised that the CVS scripts didn't require you to put an 'Approved by' line here. Is something broken?" Usually, the scripts require an "Approved by" line when committing to a restricted branch like 5.x, but Sheldon's commit had not had that line and was not rejected. Jun Kuriyama (kuriyama) replied, "Hmm, I checked with same file, branch and log message in my repo, but it worked as I suppose. But the commit log proves something broken..." Scott suggested, "Maybe committing directly from freefall circumvents the checks?" freefall is the main shell login server for committers. Jun answered, "I understand freefall mounts /home/ncvs as readonly and we are allowed to commit via over ssh only. So I think we have only one commit method." Later on, Ken Smith (kensmith) tried a couple of test commits, demonstrating the problem. After trying a couple of things, he asked, "[My last fix] was my best guess at why the approval checks weren't working. Anyone else got any ideas?" Ruslan Ermilov (ru) replied, "I played with this a bit, setting up a local repository with FreeBSD CVSROOT scripts, and I cannot reproduce it. [ . . . ] I think that CVSROOT/approvecheck needs to have some debugging until the problem is resolved." Dag-Erling Smorgrav (des) offered, "just a shot in the dark: could the login name be related somehow? it works fine for you [Ruslan] and me, and we both have short login names; it doesn't work for sheldonh and kensmith, who both have 8-character login names." Ken tried again, after Jun had done some work on the code. The problem was still present, and Ken noted, "no error messages generated that I could see[.]" Jun asked, "could you test with debug option in cfg_local.pm?" Ken replied, "Ok, we can take this offline if it's just you and me working on this so we're not spam-ing the list." A few hours later, Ken followed up to the thread with this explanation: "We think we found it. The script that checks the acl's was using the CVS/Tag file to get the branch name from. It turns out if you check out just one file (either remotely or from a local repo, doesn't matter) then that file isn't created. It only gets created if you check out more than one file." Ruslan confirmed, "Yes, indeed! I can confirm this by trying locally[.]" Ken concluded, "once Jun noticed the CVS/Tag file was missing from a commit I did I had tried it from a location with the whole src/sys/conf directory checked out and I got the 'You need approved by ...' message. When I decided the other day to start looking into it I had checked out just the newvers.sh file." (many threads involved) =================== Important bug fixes =================== Security flaws in prison root raw socket access fixed ----------------------------------------------------- Christian S. J. Peron (csjp) fixed several security holes when a root user in a prison is given access to raw sockets. This access is given by setting the sysctl security.jail.allow_raw_sockets to 1. The security holes fixed allowed the imprisoned root user to modify various network parameters and affect the host system. Though a number of security holes have been corrected, more may be present, and security.jail.allow_raw_sockets should be used with care. http://www.freebsd.org/cgi/mid.cgi?200409021447.i82Elcbt062786 Sharing CDROMs over NFS fixed ----------------------------- Tim J. Robbins (tjr) fixed a problem in the CD-ROM code that was causing files on CD-ROMs that use the cd9660 filesystem to show up as zero-byte files when shared via NFS. This closes `PR 63446`_. .. _`PR 63446`: http://www.freebsd.org/cgi/query-pr.cgi?pr=63446 http://www.freebsd.org/cgi/mid.cgi?200409051118.i85BIrIB024471 =============== Other bug fixes =============== Brooks Davis (brooks) fixed the keyboard support so that a USB keyboard will be used as the default when it is plugged into a machine that already had a keyboard connected. http://www.freebsd.org/cgi/mid.cgi?200409010008.i8108Fxq081685 Prafulla Deuskar (pdeuskar) fixed a few issues with the em driver for Intel PRO/1000 gigabit Ethernet cards. He fixed a problem with jumbo frames on cards with the 82547 chip, fixed VLAN-tagged frames' not being bridged, and corrected the incorrect operation of the cards' LEDs. http://www.freebsd.org/cgi/mid.cgi?200409012322.i81NMgQR027171Received on Tue Sep 07 2004 - 20:53:23 UTC
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