FreeBSD cvs-src summary for 14/03/04 to 21/03/04 ++++++++++++++++++++++++++++++++++++++++++++++++ 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 ============ PC Card ATA/SATA controller support ----------------------------------- Søren Schmidt added support to the ATA code for detaching PCI ATA controllers. This allows PC card (Cardbus) ATA and Serial ATA controllers to be used, with similar speeds to PCI controllers. http://docs.freebsd.org/cgi/mid.cgi?200403151203.i2FC3mrZ046442 Intel ACPI-CA 20040311 imported ------------------------------- Nate Lawson (njl) imported Intel's ACPI-CA ACPI support code, version 20040311. ACPI-CA upgrades like this one improve hardware support, especially on laptops. http://docs.freebsd.org/cgi/mid.cgi?200403181742.i2IHgK8r043974 Aironet Arlan 655 wireless NIC support -------------------------------------- Max Khon (fjoe) committed the arl driver for the Aironet Arlan 655 wireless network adapter. He also added the arlconfig program to control Airolan cards. http://docs.freebsd.org/cgi/mid.cgi?200403152224.i2FMOSQh002806 Mixer settings saved and restored across reboots ------------------------------------------------ John Baldwin (jhb) added an rc script to save the audio mixer settings at shutdown and restore them when starting up. Also, the command ``/etc/rc.d/mixer reload`` can be used to restore the last saved settings. http://docs.freebsd.org/cgi/mid.cgi?200403152309.i2FN9I5n012369 =============== Notable changes =============== RAIDFrame removed ----------------- Scott Long (scottl) removed the RAIDFrame software RAID driver, since it hasn't been working since the GEOM disk API was introduced, and nobody has volunteered to fix it. For software raid, you should use the `Vinum`_ package, which is included with the base system. .. _`Vinum`: http://www.vinumvm.org/ http://docs.freebsd.org/cgi/mid.cgi?200403161223.i2GCNh6a010477 ================= Discussion topics ================= Opinions on the Intel C Compiler -------------------------------- As a follow-up to last week's commit of `ICC support for kernel building`, David O'Brien (obrien) noted that Intel C Compiler (ICC) version 8 will build code that either doesn't work or disables all optimizations on AMD processors. Alexander Leidinger (netchild) responded that Intel has found some problems with ICC on AMD processors; David stated that Intel is deliberately breaking compatibility with AMD chips. Alexander suggested that different releases could be built for different processors, allowing the use of the ICC optimizations without the incompatibility problems. Scott Long (scottl) brought up the point that even if release kernels were built with ICC, users often rebuild the kernels, so they would lose the speed benefits of ICC. Garance A. Drosihn (gad) pointed out that even if releases are still built with GCC, the ability to build the system with other compilers provides a benchmark to compare with GCC. .. `ICC support for kernel building`: http://excel.xl0.org/FreeBSD/14-03-04.html#intel-c-compiler-support-added-for-kernel-building http://docs.freebsd.org/cgi/mid.cgi?20040315033213.GA40858 Finding a home for dvcfg.h and physio_proc.h -------------------------------------------- Last week, Peter Wemm (peter) moved the files machine/dvcfg.h and machine/physio_proc.h from various machine-dependent locations to a common machine-independent area in compat/netbsd. Yoshihiro TAKAHASHI (nyan) pointed out that the files came from from NetBSD/pc98, but aren't actually for NetBSD compatibility, and that they aren't PC98 specific. David O'Brien (obrien) suggested that sys/dev/<device_name>/ would be a good place for the files, but he didn't know what that device name should be. Noriaki Mitsunaga (non) agreed that the files are not PC98 specific, and suggested sys/ or dev/dev/ for the files. Peter specified that he didn't want to put the files under sys/, and suggested dev/include. M. Warner Losh (imp) agreed. John Baldwin (jhb) wondered whether the files even need to exist; he suggested that the outdated APIs could be replaced by other code with similar functionality. http://docs.freebsd.org/cgi/mid.cgi?200403131946.i2DJkRit022925 Specifying the serial console and debug port without hints ---------------------------------------------------------- Marcel Moolenaar (marcel) committed code to replace the use of hints to select a serial console and debug port with the loader variables hw.uart.console and hw.uart.dbgport, since hints have a side effect of reserving a unit number for ISA or ACPI devices, but not PCI, and they don't have enough flexibility to select non-standard ports. John-Mark Gurney (jmg) asked for more explanation, saying that hints are supposed to tie down a device so it doesn't change between reboots, and that they should work on all bus types. Marcel explained that hints are used to tell the kernel about devices it can't always detect on its own; the PCI bus doesn't have this problem, so it doesn't need hints. He pointed out that the console settings are used before device listings are taken on busses, so a unit number would be meaningless. M. Warner Losh (imp) agreed, adding that this scheme works only for devices with fixed addresses. Marcel pointed out that devices without fixed addresses can't be used as low-level consoles. http://docs.freebsd.org/cgi/mid.cgi?200403200214.i2K2E3ps052217 ================= Committer changes ================= Nate Lawson (njl) introduced Mark Santcroos (marks), who he will be mentoring. =================== Important bug fixes =================== Denial-of-service vulnerabilities in OpenSSL patched ---------------------------------------------------- Jacques A. Vidrine (nectar) committed patches to the branches for 5.2, 5.1, 4.8, 4.9, and -STABLE to fix the denial-of-service vulnerabilities reported in the `OpenSSL security advisory`_ of March 17th. He also imported OpenSSL 0.9.7d, which includes the fix, to -CURRENT. .. _`OpenSSL security advisory`: http://www.openssl.org/news/secadv_20040317.txt Import of fix: http://docs.freebsd.org/cgi/mid.cgi?200403171211.i2HCB8AN067605 OpenSSL 0.9.7d: http://docs.freebsd.org/cgi/mid.cgi?200403171550.i2HFo0Rm023201 Information leak in process separation fixed -------------------------------------------- Pawel Jakub Dawidek (pjd) committed a fix to the kernel code for separating processes. This fix closes a hole that allowed processes to circumvent restrictions on which processes can see which, like the sysctl security.bsd.see_other_uids and the jail subsystem. http://docs.freebsd.org/cgi/mid.cgi?200403171319.i2HDJihF089490 Installation on disks and filesystems larger than 1 TB fixed ------------------------------------------------------------ John Baldwin (jhb) committed code submitted by Julian Elischer (julian) that changes sysinstall to use 64-bit integers for disk addresses. This allows sysinstall to work properly on disks and filesystems larger than 1 TB. http://docs.freebsd.org/cgi/mid.cgi?200403161707.i2GH76qZ087362 panic: lockmgr: locking against myself (kern_lock.c:370) fixed -------------------------------------------------------------- Alexander Kabaev (kan) fixed a bug in the FFS code that could cause a panic under heavy disk activity while a filesystem snapshot exists; for instance, during background fsck. This commit closes `PR 64206`, reported by Nik Clayton (nik). .. _`PR 64206`: http://www.freebsd.org/cgi/query-pr.cgi?pr=64206 http://docs.freebsd.org/cgi/mid.cgi?200403162206.i2GM6WWF061249 =============== Other bug fixes =============== John Baldwin (jhb) fixed bsdlabel to create working, bootable disklabels for the Alpha. http://docs.freebsd.org/cgi/mid.cgi?200403152310.i2FNAYO7012470 Bill Paul (wpaul) mostly fixed his NDISulator code for the Intel Centrino 2200BG wireless chip. The only remaining problem is that the driver can use up too much stack space, causing a panic; adding ``options KSTACK_PAGES=8`` to the kernel configuration file is a temporary fix. http://docs.freebsd.org/cgi/mid.cgi?200403202339.i2KNdhQI069350Received on Sun Mar 21 2004 - 12:39:57 UTC
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