Bruce A. Mah wrote: > If memory serves me right, LI Xin wrote: >> Ken Smith wrote: >>> On Thu, 2006-12-28 at 16:01 +0100, Thomas Herrlin wrote: >>>> It still runs networking daemons into a frozen zoneli state on >>>> heavy/(D)DOS network loads. Such processes cant be kill-9ed so there is >>>> no way to recover from it. (think frozen sshd and a very remote/headless >>>> server). >>>> See the stress test panic called 'Ran out of "128 Bucket" >>>> <http://people.FreeBSD.org/%7Epho/stress/log/cons210.html>' on the 6.2 >>>> todo list and my own latest test here: >>>> http://www.maniacs.se/~junics/temp/vmstat-z.txt >>>> This test was on a new 6.2-RC2 install with no zone limit tweaks nor any >>>> sbsize limits in /etc/login.conf. >>>> I just made a vm disk image with replication instructions, however Peter >>>> Holm have replicated it with his own tools so i have not bothered with >>>> it until now. >>> That problem is being worked on but won't be fixed for 6.2-REL. >>> Depending on how complex the fix winds up being it may be an Errata >>> candidate when the time comes. >> Perhaps we should mention some known workarounds in the errata >> documentation. E.g. raising nmbclusters limit, etc.? > > That's a good idea. Do you have more specifics (e.g. any particular > nmbclusters value, other workarounds, etc.)?
The current workaround is that set the following in /boot/loader.conf: kern.ipc.nmbclusters="0" And reboot; Note that this is not perfect as it can lead to the need of increasing KVA space under certain load. Cheers, -- Xin LI <[EMAIL PROTECTED]> http://www.delphij.net/ FreeBSD - The Power to Serve!
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