*Nix and Win32 Kernel
OpenBSD 3.5-R released
It seems that OpenBSD people has then patched cvs vulnerablity, though. In this version, OpenBSD has pf(4) improved a lot!
参与评论FreeBSD LOR page
What’are LORs? To quote Robert Watson:
“These warnings are generated by Witness, a run-time lock diagnostic system found in FreeBSD 5-CURRENT kernels (but removed in releases). You can read more about Witness in the WITNESS(4) man page, which talks about its capabilities. Among other things, Witness performs run-time lock order verification using a combination of hard coded lock orders, and run-time detected lock orders, and generates console warnings when lock orders are violated. The intent of this is to detect the potential for deadlocks due to lock order violations; it’s worth observing that Witness is actually slightly conservative, and so it’s possible to get false positives. In the event that Witness is accurately reporting a lock order problem, it’s basically saying “If you were unlucky, a deadlock would have happened here”. There are a couple of “well known” false positives, which we need to do a better job of documenting to prevent spurious reports. The non-well-known ones typically correspond to bugs in newly added locking, as lock order reversals usually get fixed pretty quickly because Witness is busy generating warnings :-).”
阅读全文…FreeBSD 4.10-RELEASE ports tagged
Today Joe Marcus Clarke [marcus@, a member of portmgr@] has announced that the port freeze for FreeBSD 4.10-RELEASE has been released. Now FreeBSD ports has been tagged as RELEASE_4_10_0.
参与评论FreeBSD TCP Protocol Vulnerablity patched
Mike Silberack has posted a patch related to illegal TCP RST attacks.
阅读全文…FreeBSD 4.10-RC released
Now we have RELENG_4_10 branch :-) There are a lot of -CURRENT improvements has been MFC’ed, however, the most important part of -CURRENT, say, KSE and SMPng, will never be MFC’ed because of the architecture change introduced by this.
阅读全文…Resuming for P4 HTT issue
I’m going on to track down the Pentium 4 HTT issue of FreeBSD. Currently I have setup a tinderbox (hengdm’s workstation because he is not here :-P and it’s the only box which supports HTT) and compiled a SMP kernel on it.
阅读全文…Recently committed changes is causing locking problem on FreeBSD
The SMP case seems to have something wrong with it. My MARCH=p4 and -O optimized kernel often crashes when shutting down on beastieng.frontfree.net. Apparantly this is lock related (we can see the panic strings there not to be outputing atomically, and they just mixed with each other).
阅读全文…Alan Cox's recent improvements to FreeBSD VM subsystem
Dr. Alan Cox (alc@) has committed several improvements to FreeBSD’s VM implementation, and this brought significant performance gains on 5-CURRENT.
阅读全文…Some comments on FreeBSD 5.2 usage
I personally manages several FreeBSD 5.2-CURRENT instances, and here are my experiences.
FreeBSD 5.x contained many new features, technologies. Currently, it’s clear that 5.2-CURRENT is more stable and have a better performance than 5.2(.1)-RELEASE. Therefore, if you are looking to install a new (of course, and ONLY if you choose 5.x series!) computer, the best solution would be 5-CURRENT.
阅读全文…NetBSD to begin 2.0-RELEASE engineering process
Today, NetBSD has announced their start of 2.0-RELEASE works. NetBSD is an excellent operating system that supports many platforms, if not most.
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