[Samba] repeatedly crashing smbd when printing: broken pipe

[jra at dp.samba.org]

On Wed, Oct 23, 2002 at 05:49:03PM +0200, Daniel.Ammann at u-blox.com wrote:
> Jerry,
> Jeremy,
> 
> Thanks for your hints on further tracking down 
> the problem.
> 
> I did some tcpdump-ing. Not knowing TCP too well, 
> I can only conclude the following: It really is 
> the client that finishes, BUT it only does so 
> after waiting for quite some time (timeout mechanism 
> in windows?)
> 
> This is what the relevant lines from the tcpdump 
> say (butterfly is the client, whale is the 2.2.6 samba 
> server):
> 
> 16:46:31.138352 butterfly.u-blox.ch.1353 > whale.u-blox.ch.netbios-ssn: 
> P [tcp sum ok] 397:436(39) ack 78222 win 16767NBT Packet (DF) (ttl 128, 
> id 2950, len 79)
> 16:46:31.138955 whale.u-blox.ch.netbios-ssn > butterfly.u-blox.ch.1353: 
> P [tcp sum ok] 78222:78261(39) ack 436 win 32120NBT Packet (DF) (ttl 64, 
> id 6006, len 79)
> 16:46:31.326826 butterfly.u-blox.ch.1353 > whale.u-blox.ch.netbios-ssn: 
> . [tcp sum ok] ack 78261 win 16728 (DF) (ttl 128, id 2951, len 40)
> 16:46:49.102646 butterfly.u-blox.ch.1395 > whale.u-blox.ch.netbios-ssn: 
> F [tcp sum ok] 3284:3284(0) ack 1 win 17291 (DF) (ttl 128, id 3091, len 
> 40)
> 16:46:49.102667 whale.u-blox.ch.netbios-ssn > butterfly.u-blox.ch.1395: 
> . [tcp sum ok] ack 3285 win 28527 (DF) (ttl 64, id 15101, len 40)
> 16:46:49.115899 butterfly.u-blox.ch.1420 > whale.u-blox.ch.netbios-ssn: 
> S [tcp sum ok] 298143836:298143836(0) win 16384 <mss 
> 1460,nop,nop,sackOK> (DF) (ttl 128, id 3093, len 48)
> 16:46:49.115930 whale.u-blox.ch.netbios-ssn > butterfly.u-blox.ch.1420: 
> S [tcp sum ok] 3359992752:3359992752(0) ack 298143837 win 32120 <mss 
> 1460,nop,nop,sackOK> (DF) (ttl 64, id 15119, len 48)
> 
> Any ideas? 

Check your networking hardware ? I have seen poor quality hubs
cause problems like this on my own home network.

Jeremy.