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[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
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Will be set by tschwinge when publishing.
[[!meta date="YYYY-MM-DD HH:MM UTC"]]
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<!-- This is just a skeleton. Use it to create a new MotH. -->
PREPARING THE NEXT Month of the Hurd
A month of the Hurd: *nix-based builds, *slab allocator*, and *life filesystem debugging*.
[[!if test="included()" then="""[[!toggle id=full_news
text="Details."]][[!toggleable id=full_news text="[[!paste id=full_news]]"]]"""
else="
[[!paste id=full_news]]"]]
[[!cut id="full_news" text="""
<!--basic structure of a MotH entry. Adapt, reduce and add points as needed. At the end, try to make the text flow as a unified whole.-->
Samuel Thibault: Christmas gift:
Samuel Thibault:
Samuel Thibault identified
Richard Braun committed the last patch to mplanetas branch of the slab allocator
work, for integration. http://lists.gnu.org/archive/html/bug-hurd/2011-12/msg00046.html
IRC, freenode, #hurd, 2011-11-14:
(22:30:39) braunr: there shouldn't be any noticeable difference with the
master branch
(22:30:46) braunr: a bit less fragmentation
(22:30:55) braunr: more memory can be reclaimed by the VM system
(22:31:02) braunr: there are debugging features
(22:31:06) braunr: it's SMP ready
(22:31:15) braunr: and overall cleaner than the zone allocator
(22:31:31) braunr: although a bit slower on the free path (because of
what's performed to reduce fragmentation)
(22:32:42) braunr: but even "slower" here is completely negligible
**New porter box: exodar***
Richard Brauh added Exodar, a new porter box. It is faster and more reliable, which facilitates testing and bug hunting: exodar.debian.net
I/O Path Documentation [[hurd/io_path/]]
Sergio Lopez documented his work on Better Memory Management and memfs: http://www.bddebian.com/~hurd-web/user/Sergio_Lopez/
Porting:
- Sergio Lopez: webkitgtk+: http://lists.debian.org/debian-hurd/2011/10/msg00025.html
- Svante Signell: pax: http://lists.debian.org/debian-hurd/2011/10/msg00105.html abiword http://lists.debian.org/debian-hurd/2011/11/msg00035.html syslog-ng http://lists.debian.org/debian-hurd/2011/11/msg00060.html ecl http://lists.debian.org/debian-hurd/2011/11/msg00058.html fakeroot http://lists.debian.org/debian-hurd/2011/12/msg00022.html daemon http://lists.debian.org/debian-hurd/2011/12/msg00025.html procps http://lists.debian.org/debian-hurd/2011/12/msg00046.html
- Samuel Thibault: packagekit: http://lists.debian.org/debian-hurd/2011/10/msg00071.html evolution http://lists.debian.org/debian-hurd/2011/10/msg00070.html emacs23 http://lists.debian.org/debian-hurd/2011/12/msg00018.html gcc-4.7 http://lists.debian.org/debian-hurd/2011/12/msg00065.html iceweasel (firefox) http://lists.debian.org/debian-hurd/2011/12/msg00080.html
- Bouju Alain [submitted](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00079.html) [patches](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00084.html) to support cpuinfo in the /proc interface.
Debugging:
- Pino Toscano: recvfrom() with null http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00161.html
- Maksym Planeta: tmpfs http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00125.html http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00118.html
- Samuel Thibault: libtool http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00073.html mknod http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00070.html Fix POSIX 2008 visibility http://lists.gnu.org/archive/html/bug-hurd/2011-12/msg00004.html sudo setresuid http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645285
- Jim Meyering: gnu tools with user id 4294967295 http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00094.html
- Paul Eggert: Add error-checking on GNU http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00130.html
- Pino Toscano and Thomas Schwinge [improved](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00013.html) the Hurds pthread implementation.
- Svante Signell: e2fsprogs quota fixes: http://lists.debian.org/debian-hurd/2011/10/msg00015.html
Social network sites for GNU Hurd:
- Google+: https://plus.google.com/114942488385711891227#114942488385711891227/posts
- identi.ca: http://identi.ca/group/hurd
Guillem Jover [fixed Mach's int vs long discrepancy](http://lists.debian.org/debian-hurd/2011/10/msg00053.html), which takes us the first step towards porting the Hurd to x64.
And as a final note, we want to share a story about real-life debugging with the Hurd:
<youpi> yay GNU/Hurd
<youpi> I have added i_translator check in e2fsck, it was missing
<youpi> I had a volume that was keeping making ext2fs crash
<youpi> with a reproductible scenario
<youpi> could easily work out it was i_translator, then add a check to e2fsck, run it, which indeed fixed, them, and voilà, ext2fs was working again
<youpi> all that on the same machine with *no* system reboot
<youpi> just ext2fs restart :)
<!--bug hurd and debian hurd done-->
------
This month Ludovic Courtès added a [Continuously-built Nix-based QEMU image](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00047.html), raising the count of Hurd distributions to 3: Debian, Arch and now Nix. His build is still pretty basic, but continuous integration is a great feature for testing images.
Also he added a [modern Autoconf initialization](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00068.html), [allowed /hurd/init to be a symlink](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00032.html) and made the Hurd [build with Savannah’s libc (2.14+)](http://lists.gnu.org/archive/html/bug-hurd/2011-11/msg00025.html), getting the Nix distribution even more towards the cutting edge.
Samuel Thibault followed up with a [new debian disk set](http://lists.debian.org/debian-hurd/2011/12/msg00095.html) as christmas gift, turned /dev/urandom into a [native translator](http://lists.debian.org/debian-hurd/2011/11/msg00092.html) and [identified](http://lists.debian.org/debian-hurd/2011/11/msg00095.html) three easy porting cases with solutions:
- undefined reference to dl_foo: add -ldl for building
- undefined reference to `main': missing gnu* case in the linking part of configure.ac or .in (pd-* packages are already being handled by their maintainer)
- undefined reference to clock_gettime or crypt: add -lrt or -lcrypt
These should help all those who want to help [[porting packages|hurd/porting/]] to
[our hackers] …
Mainly thanks to …
Additionally …
And …
So if you want to [reason for contibuting to the Hurd],
please [[get in contact|contact_us]] -- and maybe already grab the [[source
code|source_repositories]].
---
The **GNU Hurd** is the GNU project's replacement for the Unix kernel. It is a
collection of servers that run on the Mach microkernel to implement file
systems, network protocols, file access control, and other features that are
implemented by the Unix kernel or similar kernels (such as Linux). [[More
detailed|hurd/documentation]].
**GNU Mach** is the microkernel upon which a GNU Hurd system is based. It
provides an Inter Process Communication (IPC) mechanism that the Hurd uses to
define interfaces for implementing in a distributed multi-server fashion the
services a traditional operating system kernel provides. [[More
detailed|microkernel/mach/gnumach]].
<!--see [[contributing/web_pages/news/writing_the_moth]] for additional information on writing the MotH.-->
"""]]
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