From owner-freebsd-hackers  Tue Feb  9 13:52:44 1999
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Date: Tue, 9 Feb 1999 13:43:07 -0800 (PST)
From: Julian Elischer <julian@whistle.com>
To: Larry Lile <lile@stdio.com>
cc: hackers@FreeBSD.ORG
Subject: Re: Why did this panic?
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probably the fact that as soon as a cluster is filled,
it's sent..


On Tue, 9 Feb 1999, Larry Lile wrote:

> 
> That appears to have fixed it!
> 
> 15:56:18.034874 snap ip cyntok.1053 > anatok.ftp-data: P 405097:406881(1784) ack 1 win 15840 (ttl 60, id 43522)
> 15:56:18.037594 snap ip cyntok.1053 > anatok.ftp-data: . 406881:410841(3960) ack 1 win 15840 (ttl 60, id 43523)
> 15:56:18.038038 snap ip anatok.ftp-data > cyntok.1053: . ack 410841 win 15496 (DF) [tos 0x8] (ttl 64, id 42858)
> 15:56:18.039735 snap ip cyntok.1053 > anatok.ftp-data: . 410841:414801(3960) ack 1 win 15840 (ttl 60, id 43524)
> 15:56:18.039780 snap ip anatok.ftp-data > cyntok.1053: . ack 410841 win 15496 (DF) [tos 0x8] (ttl 64, id 42858)
> 15:56:18.040342 snap ip anatok.ftp-data > cyntok.1053: . ack 414801 win 16384 (DF) [tos 0x8] (ttl 64, id 42859)
> 15:56:18.041825 snap ip cyntok.1053 > anatok.ftp-data: . 414801:418761(3960) ack 1 win 15840 (ttl 60, id 43525)
> 15:56:18.041867 snap ip anatok.ftp-data > cyntok.1053: . ack 414801 win 16384 (DF) [tos 0x8] (ttl 64, id 42859)
> 15:56:18.045938 snap ip cyntok.1053 > anatok.ftp-data: . 418761:422721(3960) ack 1 win 15840 (ttl 60, id 43526)
> 15:56:18.046106 snap ip anatok.ftp-data > cyntok.1053: . ack 422721 win 13448 (DF) [tos 0x8] (ttl 64, id 42860)
> 15:56:18.046263 snap ip anatok.ftp-data > cyntok.1053: . ack 422721 win 13448 (DF) [tos 0x8] (ttl 64, id 42860)
> 15:56:18.048370 snap ip cyntok.1053 > anatok.ftp-data: P 422721:426681(3960) ack 1 win 15840 (ttl 60, id 43527)
> 15:56:18.048685 snap ip anatok.ftp-data > cyntok.1053: . ack 426681 win 14472 (DF) [tos 0x8] (ttl 64, id 42861)
> 15:56:18.048828 snap ip anatok.ftp-data > cyntok.1053: . ack 426681 win 14472 (DF) [tos 0x8] (ttl 64, id 42861)
> 15:56:18.052509 snap ip cyntok.1053 > anatok.ftp-data: . 426681:430641(3960) ack 1 win 15840 (ttl 60, id 43528)
> 15:56:18.052995 snap ip anatok.ftp-data > cyntok.1053: . ack 430641 win 15496 (DF) [tos 0x8] (ttl 64, id 42862)
> 
> Nice big 3k packets!  It does seem that FreeBSD will not generate a packet
> bigger than 2048 though.  
> 
> 16:00:41.593756 snap ip anatok.ftp-data > cyntok.1056: . 223233:225281(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44259)
> 16:00:41.595001 snap ip anatok.ftp-data > cyntok.1056: . 225281:227329(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44260)
> 16:00:41.595930 snap ip anatok.ftp-data > cyntok.1056: . 227329:229377(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44261)
> 16:00:41.596980 snap ip anatok.ftp-data > cyntok.1056: . 229377:231425(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44262)
> 16:00:41.597952 snap ip cyntok.1056 > anatok.ftp-data: . ack 227329 win 15840 (ttl 60, id 44715)
> 16:00:41.598110 snap ip anatok.ftp-data > cyntok.1056: . 231425:233473(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44263)
> 16:00:41.598244 snap ip anatok.ftp-data > cyntok.1056: . 233473:235521(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44264)
> 16:00:41.598374 snap ip anatok.ftp-data > cyntok.1056: . 235521:237569(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44265)
> 16:00:41.598509 snap ip anatok.ftp-data > cyntok.1056: . 237569:239617(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44266)
> 16:00:41.598632 snap ip anatok.ftp-data > cyntok.1056: . 239617:241665(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44267)
> 16:00:41.599962 snap ip anatok.ftp-data > cyntok.1056: . 231425:233473(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44263)
> 16:00:41.600782 snap ip anatok.ftp-data > cyntok.1056: . 233473:235521(2048) ack 1 win 16384 (DF) [tos 0x8] (ttl 64, id 44264)
> 
> But that's another problem.  Any idea where in the stack that is 
> happening?
> 
> Larry Lile
> lile@stdio.com
> 
> 


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