Date: Thu, 14 Sep 2000 13:31:29 -0300 From: "Mario Sergio Fujikawa Ferreira" <lioux@uol.com.br> To: kernel@tdnet.com.br Cc: freebsd-stable@freebsd.org Subject: Re: qmail + freebsd = reboot Message-ID: <20000914133129.A814@Fedaykin.here>
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Hi, qmail as well as FreeBSD is well known for its rock stability. qmail is mostly privilege free (read 'root') when running, therefore your reboot problem shouldn't be related to that. If you are sure it is not a hardware problem -> Are you sure you do not have a botched installed system: did you cvsup lately? did your machine experienced any crashes lately? If you are sure it is not that and you are sure it is qmail related (Which most of us surely doubt), you could check the following: It could be DoS related. Perhaps, and that is a long shot, you are DoSing your machine with your test. However, that would be an odd thing: 1) qmail has a hardwired low default for concurrent processes, delivery-wise you shouldn't see more than 30 qmail-send at once which is a process of roughly (200Kb + message size) when processing a message. 2) qmail has a small overall footprint even under pressure. However, you can always admit a bad patch, bad configuration bad installation or some compilation problem. First thing you should check are your logs, is there anything odd there? I mean, odder than usual? Did you installed it correctly? Did you install it from ports? How many concurrent processes are there configured? Although qmail has a small footprint, it is not insignificant for a finite resource such as memory. Check your /var/qmail/control/ for concurrecyremote and concurrecylocal files. Read qmail-control(5). Besides check www.qmail.org for ulimit tips. Are you trying any weird qmail patches? Or, are you using a plain qmail installation? You see, there too many doubts. Unless you can provide acurate information no one will be able to help you without physical access to your system. Perhaps, not even then. :( Regards, Mario Ferreira To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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