Re: PROBLEM: Sending mail-attachment > 45k with Netscape via sendmail hangs

Matthias Moeller (mattes@ice.robin.de)
Thu, 25 Feb 1999 16:59:20 +0100 (CET)

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Next message: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"
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In reply to: Alan Cox: "Re: PROBLEM: Sending mail-attachment > 45k with Netscape via sendmail hangs"
Next in thread: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"
Reply: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"

On Thu, 25 Feb 1999, Alan Cox wrote:

> > 15:57:16.363358 localhost.1024 > localhost.3333: . ack 14266 win 16807 <nop,nop,timestamp 7039 7039> (DF)
> > 15:57:16.363358 localhost.1024 > localhost.3333: . ack 14266 win 16807 <nop,nop,timestamp 7039 7039> (DF)
>
> Now either the trace goes bad or we just went completely gaga, this is acking
> data that isnt being reported. Is your tcpdump missing some transmitted frames ?

Probably tcpdump does not work 100% with loopback.
This one should be okay (stalls also):

16:48:20.789276 localhost.1088 > localhost.3333: S 4114511613:4114511613(0) win 31072 <mss 3884,nop,nop,timestamp 313482 0,nop,wscale 0> (DF)
16:48:20.789276 localhost.1088 > localhost.3333: S 4114511613:4114511613(0) win 31072 <mss 3884,nop,nop,timestamp 313482 0,nop,wscale 0> (DF)
16:48:20.789338 localhost.3333 > localhost.1088: S 4123535379:4123535379(0) ack 4114511614 win 31072 <mss 3884,nop,nop,timestamp 313482 313482,nop,wscale 0> (DF)
16:48:20.789338 localhost.3333 > localhost.1088: S 4123535379:4123535379(0) ack 4114511614 win 31072 <mss 3884,nop,nop,timestamp 313482 313482,nop,wscale 0> (DF)
16:48:20.789363 localhost.1088 > localhost.3333: . ack 1 win 31072 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.789363 localhost.1088 > localhost.3333: . ack 1 win 31072 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.795048 localhost.3333 > localhost.1088: P 1:1586(1585) ack 1 win 31072 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.795048 localhost.3333 > localhost.1088: P 1:1586(1585) ack 1 win 31072 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.795087 localhost.1088 > localhost.3333: . ack 1586 win 29487 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.795087 localhost.1088 > localhost.3333: . ack 1586 win 29487 <nop,nop,timestamp 313482 313482> (DF)
16:48:20.797165 localhost.3333 > localhost.1088: P 1586:3171(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313482> (DF)
16:48:20.797165 localhost.3333 > localhost.1088: P 1586:3171(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313482> (DF)
16:48:20.797186 localhost.1088 > localhost.3333: . ack 3171 win 27902 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.797186 localhost.1088 > localhost.3333: . ack 3171 win 27902 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.799204 localhost.3333 > localhost.1088: P 3171:4756(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.799204 localhost.3333 > localhost.1088: P 3171:4756(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.799224 localhost.1088 > localhost.3333: . ack 4756 win 26317 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.799224 localhost.1088 > localhost.3333: . ack 4756 win 26317 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.801243 localhost.3333 > localhost.1088: P 4756:6341(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.801243 localhost.3333 > localhost.1088: P 4756:6341(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.801264 localhost.1088 > localhost.3333: . ack 6341 win 24732 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.801264 localhost.1088 > localhost.3333: . ack 6341 win 24732 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.803284 localhost.3333 > localhost.1088: P 6341:7926(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.803284 localhost.3333 > localhost.1088: P 6341:7926(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.803305 localhost.1088 > localhost.3333: . ack 7926 win 23147 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.803305 localhost.1088 > localhost.3333: . ack 7926 win 23147 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.805324 localhost.3333 > localhost.1088: P 7926:9511(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.805324 localhost.3333 > localhost.1088: P 7926:9511(1585) ack 1 win 31072 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.805345 localhost.1088 > localhost.3333: . ack 9511 win 21562 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.805345 localhost.1088 > localhost.3333: . ack 9511 win 21562 <nop,nop,timestamp 313483 313483> (DF)
16:48:20.807384 localhost.3333 > localhost.1088: P 9511:11096(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313483> (DF)
16:48:20.807384 localhost.3333 > localhost.1088: P 9511:11096(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313483> (DF)
16:48:20.807405 localhost.1088 > localhost.3333: . ack 11096 win 19977 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.807405 localhost.1088 > localhost.3333: . ack 11096 win 19977 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.809427 localhost.3333 > localhost.1088: P 11096:12681(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.809427 localhost.3333 > localhost.1088: P 11096:12681(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.809447 localhost.1088 > localhost.3333: . ack 12681 win 18392 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.809447 localhost.1088 > localhost.3333: . ack 12681 win 18392 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.811466 localhost.3333 > localhost.1088: P 12681:14266(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.811466 localhost.3333 > localhost.1088: P 12681:14266(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.811486 localhost.1088 > localhost.3333: . ack 14266 win 16807 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.811486 localhost.1088 > localhost.3333: . ack 14266 win 16807 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.813511 localhost.3333 > localhost.1088: P 14266:15851(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.813511 localhost.3333 > localhost.1088: P 14266:15851(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.813531 localhost.1088 > localhost.3333: . ack 15851 win 15222 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.813531 localhost.1088 > localhost.3333: . ack 15851 win 15222 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.815548 localhost.3333 > localhost.1088: P 15851:17436(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.815548 localhost.3333 > localhost.1088: P 15851:17436(1585) ack 1 win 31072 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.815570 localhost.1088 > localhost.3333: . ack 17436 win 13637 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.815570 localhost.1088 > localhost.3333: . ack 17436 win 13637 <nop,nop,timestamp 313484 313484> (DF)
16:48:20.817622 localhost.3333 > localhost.1088: P 17436:19021(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313484> (DF)
16:48:20.817622 localhost.3333 > localhost.1088: P 17436:19021(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313484> (DF)
16:48:20.817643 localhost.1088 > localhost.3333: . ack 19021 win 12052 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.817643 localhost.1088 > localhost.3333: . ack 19021 win 12052 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.819667 localhost.3333 > localhost.1088: P 19021:20606(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.819667 localhost.3333 > localhost.1088: P 19021:20606(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.819687 localhost.1088 > localhost.3333: . ack 20606 win 10467 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.819687 localhost.1088 > localhost.3333: . ack 20606 win 10467 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.821706 localhost.3333 > localhost.1088: P 20606:22191(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.821706 localhost.3333 > localhost.1088: P 20606:22191(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.821727 localhost.1088 > localhost.3333: . ack 22191 win 8882 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.821727 localhost.1088 > localhost.3333: . ack 22191 win 8882 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.823743 localhost.3333 > localhost.1088: P 22191:23776(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.823743 localhost.3333 > localhost.1088: P 22191:23776(1585) ack 1 win 31072 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.823764 localhost.1088 > localhost.3333: . ack 23776 win 7297 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.823764 localhost.1088 > localhost.3333: . ack 23776 win 7297 <nop,nop,timestamp 313485 313485> (DF)
16:48:20.825817 localhost.3333 > localhost.1088: P 23776:25361(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313485> (DF)
16:48:20.825817 localhost.3333 > localhost.1088: P 23776:25361(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313485> (DF)
16:48:20.825839 localhost.1088 > localhost.3333: . ack 25361 win 5712 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.825839 localhost.1088 > localhost.3333: . ack 25361 win 5712 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.827860 localhost.3333 > localhost.1088: P 25361:26946(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.827860 localhost.3333 > localhost.1088: P 25361:26946(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.827889 localhost.1088 > localhost.3333: . ack 26946 win 4127 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.827889 localhost.1088 > localhost.3333: . ack 26946 win 4127 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.829902 localhost.3333 > localhost.1088: P 26946:28531(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.829902 localhost.3333 > localhost.1088: P 26946:28531(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.829931 localhost.1088 > localhost.3333: . ack 28531 win 2542 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.829931 localhost.1088 > localhost.3333: . ack 28531 win 2542 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.831959 localhost.3333 > localhost.1088: P 28531:30116(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.831959 localhost.3333 > localhost.1088: P 28531:30116(1585) ack 1 win 31072 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.831988 localhost.1088 > localhost.3333: . ack 30116 win 957 <nop,nop,timestamp 313486 313486> (DF)
16:48:20.831988 localhost.1088 > localhost.3333: . ack 30116 win 957 <nop,nop,timestamp 313486 313486> (DF)

Matthias

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Next message: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"
Previous message: Philip Gladstone: "Re: RFD: nanoseconds, rdtsc and SMP"
In reply to: Alan Cox: "Re: PROBLEM: Sending mail-attachment > 45k with Netscape via sendmail hangs"
Next in thread: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"
Reply: Alan Cox: "Re: v2.2.2: definition of _SYS_SHM_H missing, fault in kernel src.?"