<br /> 386 Support Uncertain – Debian Planet

Welcome to Debian Planet

News for Debian. Stuff that *really* matters


Debian Planet is hosted by Bluelinux Internet Services Ltd. Offering a special discounted rate for Free and Open Source software community members.

Buy your Debian merchandise at DebianShop.com.

These are important Debian sites one should not be without!

  • Official Debian site
  • Package search
  • Mailing list archives
  • Bug reports
  • Debian on CD
  • Debian Weekly News — excellent news source!
  • Unofficial APT sources

  • Developers’ Corner
  • Community
    Need help? You’re not alone on this planet.

  • Planet Debian
  • debianHELP
    (User support site)

  • Debian Administration
    (SysAdmin resources)

  • Debian International
  • DebianForum.de

  • DebianForum.dk

  • EsDebian

  • DebianWorld

  • Debian-Fr

  • MaximumDebian

  • DebianItalia
  • DebianUsers

  • Debian-BR

  • DebianHOWTO

  • Russian Debian (Русский)
  • Debian-JP
  • Debian Suisse
  • Contribute
    Got that latest or greatest scoop? Perhaps you have some important news for the Debian community? Submit a news item!

    Or perhaps you’ve written a rather ground breaking insight into some aspect of Debian and you feel compelled to share it with others? Knock up a longer editorial article and send it to the editors.

    General feedback should be sent to staff@debianplanet.org

    The place to get help on a Debian problem (after reading docs) or to just chat and chill is #debian on irc.oftc.net.

    Many of the Debian Planet staff live there so pop by and say hello.

    Debian Planet also has its own channel on the same network called #debianplanet.


    386 Support Uncertain
    Submitted by robster on Friday, April 22, 2005 – 12:43
    SargeOfficial Debian support for the 80386 sub-architecture in Sarge is currently uncertain – it is currently unmaintained according to a recent release update. The kernels that ship with sarge will contain support for emulating the appropriate i486+ instructions needed to maintain C++ ABI compatibility with other distributions, although there are known root security holes with the patch, and nobody has stepped up to fix them. Unless a maintainer can be found for this sub-architecture the release managers will be forced to drop official support for the 80386 both for new installs and upgrades.

    There are plenty of reasonable reasons why it is no longer feasible to continue support for 80386 even if the security problems in the kernel are resolved.

    The need for the emulation of some i486 instructions comes from changes that have been made to the C++ binary interface in GCC 3.2 in order to improve locking by making use of CPU specific (i486 and later) instructions for atomic operations. Although the use of these instructions can be disabled and allow the binaries to function on 80386 processors, not using them has very poorer performance, as well as making Debian’s C++ ABI incompatible with other Linux distributions.

    Category: News

    Control panel

    Comment viewing options:

    Select your prefered way to display the comments and click ‘Update settings’ to activate your changes.

    Subject: i386 debs optimized for 80486 and above?
    Author: lovelace
    Date: Monday, 2005/05/02 – 08:12
    Does this mean that the debs for i386 will be optimized for 80486 processors and above? If there is no support for 80386 processors, It seems strange to build debs for that architecture…
    [ Please login, or register ]


    Subject: no difference
    Author: robot101
    Date: Thursday, 2005/05/05 – 09:02
    There aren’t many instructions in 486 that aren’t in 386 except these atomic swap instructions which are being spoken about. It makes sense to build 386 debs because everything that doesn’t use C++ still works fine, and it’s entirely possible someone will fix the kernel emulation for 386s. Things like floating point units or maths coprocessors are optional extras on 386s and 486s, but the C library can detect these at run-time and use faster methods when possible, I think.

    Robster is a monkey
    [ Please login, or register ]

    Subject: April Fools?
    Author: bwoodacre
    Date: Thursday, 2005/04/28 – 20:10
    That first link is from April 1st…sounds like an April Fools Joke to me.
    [ Please login, or register ]


    Subject: Uhm.
    Author: robster
    Date: Friday, 2005/04/29 – 15:31
    Sorry. No. Its not an April fool. Its a seriousl problem and since AFAIK no one has stepped in yet it looks like support for 80386 will be dropped.



    Rob ‘robster’ Bradford

    [ Please login, or register ]

    Search articles

    ·News (406)
    ·Features (5)
    ·Site News (16)
    ·HOWTOs (79)
    ·Tips (21)
    ·Opinion (29)
    ·Q & A (35)
    ·Sponsorship (1)
    ·Press Releases (5)

    Log in


    Remember me

    » Register
    » New password

    Debian Security Announcements
    DSA-943 perl
    DSA-942 albatross
    DSA-903 unzip
    DSA-941 tuxpaint
    DSA-940 gpdf
    DSA-939 fetchmail
    DSA-938 koffice
    DSA-937 tetex-bin
    DSA-936 libextractor
    DSA-935 libapache2-mod-auth-pgsql

    Planet Debian
    Wouter Verhelst: On flames.
    Joachim Breitner: Fixing my planet.debian.org subscription
    Steve Kemp: She has the blood of reptile just underneath her skin
    Pierre Habouzit: Married …
    Pierre Habouzit: whitelister 0.4 (SPF) and aaege ….
    Pierre Habouzit: kde 3.4.1 upload
    Holger Levsen: In case you are running OpenWRT
    Michael Janssen: Shiny roofs are good for the environment!
    Matthew Palmer: Work it out yourself, dammit!
    Axel Beckert: Tell me which music you like and I tell who you are

    Debian Administration
    How do I prevent rebuilt packages from being upgraded?
    Disabling the print-screen key inside X?
    Monitoring your bandwidth usage with vnstat
    Ruby on Rails on Debian
    Choice for Virtual Private Servers?
    Monitoring your hardware’s temperature
    Sending mail with Exim from ‘dialup’ IP
    How to recover GRUB Debian Sarge after reinstalling Windows
    Getting a GUI
    Spam filtering with Pyzor and SpamBayes

    Latest poll: Which release scheme should Debian follow?
    Continue this way (release when ready)
    Give up on releasing
    Split the release up
    Speed the release up
    Crank the workload up (see DebianWiki ReleaseProposals for details on these)

    Total votes: 372
    0 comments · older polls

    home · archives · news feeds · about · polls · search · sections · user account

    Powered by the amazing Drupal

    Debian Planet is not officially related to the Debian Project.
    Debian and the Debian logo are trademarks of Software in the Public Interest, Inc.