Date: Tue, 19 Mar 2002 01:40:02 -0800 (PST) From: Sheldon Hearn <sheldonh@starjuice.net> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/34801 Message-ID: <200203190940.g2J9e2l82658@freefall.freebsd.org>
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The following reply was made to PR kern/34801; it has been noted by GNATS. From: Sheldon Hearn <sheldonh@starjuice.net> To: AMAKAWA Shuhei <sa264@cam.ac.uk> Cc: obrien@FreeBSD.org, bug-followup@freebsd.org Subject: Re: kern/34801 Date: Tue, 19 Mar 2002 11:36:00 +0200 On Tue, 19 Mar 2002 09:04:32 GMT, AMAKAWA Shuhei wrote: > Incidentally, are you interested in looking at > > http://www.FreeBSD.org/cgi/query-pr.cgi?pr=kern=34801 Seems odd to me that nobody seems to have called for comment from David O'Brien who made the change that bumped net.inet.tcp.recvspace to 2^16. David, lots of IPFilter users are complaining that this value breaks IPFilter, because that software treats the window size as a 16-bit value, which can't represent anything more than 65535. However, we don't really want to drop the value to 65535, because we really want it to be a multiple of PAGE_SIZE. So various folks have suggested dropping it back down to 32768. In your commit log for the change, you said that dillon had agreed in principle, but only "on the 32k level". If dillon had reservations about "the 64k level", can you remember why you ignored them? Alternatively, are you happy with us just going ahead and dropping the value for the sake of software that never dreamed the default would become so large? Seems pretty sane to me, and it's still an improvement over 16k. Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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