Date: Fri, 18 Jun 1999 11:15:08 +0200 From: Ladavac Marino <mladavac@metropolitan.at> To: "'Ronald F. Guilmette'" <rfg@monkeys.com>, Dan Nelson <dnelson@emsphone.com> Cc: Greg Lehey <grog@lemis.com>, Thomas David Rivers <rivers@dignus.com>, mistwolf@ethereal.net, questions@FreeBSD.ORG Subject: RE: A suggested kernel enhancement relating to kernel panics. Message-ID: <55586E7391ACD211B9730000C1100276179685@r-lmh-wi-100.corpnet.at>
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> -----Original Message----- > From: Ronald F. Guilmette [SMTP:rfg@monkeys.com] > Sent: Friday, June 18, 1999 4:31 AM > To: Dan Nelson > Cc: Greg Lehey; Thomas David Rivers; mistwolf@ethereal.net; > questions@FreeBSD.ORG > Subject: Re: A suggested kernel enhancement relating to kernel > panics. > > > In message <19990617211655.A9746@dan.emsphone.com>, you wrote: > > A footnote: I made some modest changes to my heavy-load-inducing > application > program to prevent it from trying to initiate too many TCP connections > during any given wall-clock second, and now everything appears to be > running > peachy again. [ML] Are you sure you are not running out of mbufs? That will panic a machine. > I suspect that the earlier panics and/or spontaneous reboots I was > seeing > much have been due to _some_ very obscure kernel (or perhaps even CPU) > bug > that _only_ makes itself apparent under _very_ heavy interrupt loads. [ML] Or high network load--IIRC, you need mbufs for TCP fragment reassembly as well. Try netstat -m to find out the IP memory usage. /Marino To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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