Date: Fri, 16 Sep 2005 19:09:10 +0300 From: AK <lesha@ns.divo.ru> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org Subject: Re: "panic: getnewbuf: locked buf" on heavy load 5.4-STABLE Message-ID: <200509161909.10463.lesha@ns.divo.ru> In-Reply-To: <432AE77E.2030509@mac.com> References: <200509161254.14108.lesha@ns.divo.ru> <432AE77E.2030509@mac.com>
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Hello! On Friday 16 September 2005 18:40, Chuck Swiger wrote: > Please read "man crash" and the part of the handbook which talks about how > to obtain a crashdump or backtrace with more information about the panic > you see. > > You might consider putting both a backtrace and a dmesg from the system on > the web somewhere, and post links to that. To get a crashdump I should have swapspace >= total ram. Currently it is only 2G, I'm trying to think of smth. to get more swapspace. dmesg is available @ http://getfile.biz/dmesg.txt > > For some reason my 5.4 STABLE is dying each 4-5 hours with panic above. > > This is big Web server with Apache configured to 1500 MaxClients. All > > kernel tunings suggested for high load servers by freebsd handbook are in > > place. Hardware is Intel server board, P4-3.0 cpu with HT off, 3Gb ram, > > 1eide, 2sata. > By the way, you don't have enough RAM to handle 1500 concurrent Apache > processes, even with a minimal config (ie, no SSL, no mod_perl, no PHP). Mem: 1203M Active, 1293M Inact, 383M Wired, 125M Cache, 112M Buf, 4340K Free Looks like enough to me... > The busiest site I've ever administered needed between 100 and 150 apache > children in order to serve a load of ~2 million hits per day. Yes, if you run a "text only" site. This one is a "file download" site with more that 750Gb/day transfer. Limiting apache to 150 or even 500 connections will make it unavailable, as all slots will be occupied by active downloads. See http://getfile.biz/ for details. Thanks, Alex. -- OffshoreDrive.com - alex@offshoredrive.com secure online storage and content delivery solutions
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