Date: Fri, 20 Dec 2002 16:20:16 +0300 (MSK) From: Varshavchick Alexander <alex@metrocom.ru> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Maxim Konovalov <maxim@macomnet.ru>, Dmitry Morozovsky <marck@rinet.ru>, David Schultz <dschultz@uclink.Berkeley.EDU>, Terry Lambert <tlambert2@mindspring.com>, <freebsd-hackers@FreeBSD.ORG> Subject: Re: Invalid FFC node allocation algorithm (Was: maxusers and random system freezes) Message-ID: <Pine.GSO.4.33.0212201609250.13844-100000@apache.metrocom.ru> In-Reply-To: <200212201102.gBKB2nLX050734@apollo.backplane.com>
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On Fri, 20 Dec 2002, Matthew Dillon wrote: > :Hi, > : > :It seems that kern/32672 is not fixed yet on FreeBSD 4.5-STABLE. > : > :System 4Gb RAM, 4x700MHz > : > :When the system is not using all RAM, the FFS node memory grows up to a > :limit of 102400K which leads to a system deadlocking. > > Well, there was some further work done to the vnode reclamation > code after the 4.5 release. RELENG_4_5 has 1.249.2.23 > RELENG_4_6 has 1.249.2.27. Peter Wemm introduced a major upgrade > to the vnode reclamation in 1.249.2.24. > > I don't think I can really go back and backport this stuff to the > 4.5 branch. If you upgrade to 4.6 or 4.7 and still have the problem > I can look into it (the differences in this particular area of code > between 4.6 and 4.7 are minor and it would be easy to make fixes in > both branches). > > -Matt So, at least a possible cause of the server halts seems to have been cleared. As for now, we'll see if this server can be saved from the block-outs by periodically checking the freevnodes value and running a ram-consuming program to free vnodes if this value is getting too low. Or eventually upgrading to a new version. Thank you for the answer ---- Alexander Varshavchick, Metrocom Joint Stock Company Phone: (812)118-3322, 118-3115(fax) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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