FreeBSD

From the commit log:

Close an interrupt race between vm_page_lookup() and (typically) a vm_page_sleep_busy() check by using the correct spl protection. An interrupt can occur inbetween the two operations and unbusy/free the page in question, causing the busy check to fail and for the code to fall through and then operate on a page that may have been freed and possibly even reused. Also note that vm_page_grab() had the same issue between the lookup, busy check, and vm_page_busy() call.

以前觉得Ruslan Ermilov (ru at FreeBSD dot org, mdoc(7) maintainer)一般只是commit一些Makefile，在整个project里面不过是一个做简单maintain工作的角色，真到自己动手写Makefile的时候才发现，想把Makefile写好可真是太难了。

I am thinking of the possiblity of backporting / porting several DragonFly and NetBSD, even OpenBSD’s features, to FreeBSD, to increase its performance, stablity, and the code readablity.

By Google’ing the web I got a 1.1.5.1-RELEASE tarball. FreeBSD 1.x was based on Net/2 and the USL lawsuit has caused FreeBSD project to re-start from 4.4BSD-Lite2, and 1.1.5.1 was the last 1.x RELEASE permitted to be released.

I have requested src/usr.sbin/timed/timedc/timedc.c, v 1.5 to be MFC’ed to RELENG_4 and RELENG_4_10 so it will get its way into the upcoming release. It has not decided whether this will be merged into RELENG_4_10 yet, however, it is very likely that this will.

I have employed the following (ugly) script for MFC’ing, as I do not want to really make big difference between FreeBSD and my fork version:

It turns that I need to set up my own cvsup server so I can deploy my fork elsewhere. Here comes how.

Today I have finally started my lightweight fork of FreeBSD. The methodlity taken was, use the official mirror (cvsup5.cn)’s cvsup service and derive my own repository with CVSup’s local repository ablity by disabling its delete function, and exploiting FreeBSD’s stock CVS’s local branch numbering feature.

Wow… Erwin Lansing is requesting for a pointy hat with a blinking light in the top :-)

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erwin       2004/05/02 23:35:27 PDT

  FreeBSD ports repository

  Modified files:
    .                    modules 
  Log:
    kscope --> ports/devel/kscope
  
  Revision  Changes    Path
  1.10000   +1 -0      CVSROOT/modules

Shortly after OpenBSD’s 3.5 splash web, Matthew Dillon has released a thrid “known stable” iso for DragonFlyBSD. It can be obtained from ftp://ftp.dragonflybsd.org/iso-images/dfly-20040502.iso.gz.

This snapshot included many new features, yet stable: