Re: two other cases Re: [Bug 11721] after upgrade to 2.6.27 i cannot navigate

[Aldo Maggi <sentiniate@tiscali.it>]

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Il giorno Wed, 22 Oct 2008 13:00:01 +0300 (EEST)
"Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi> ha scritto:

[...]

> 
> It would be nice for Aldo to check what the result will be with my
> second patch (only) using sack=1,ts=0,wscale=0. I guess it does but
> it's a bit unclear if nop's in front help or not (having the patch
> below should anyway help also in that case as the mss option gets
> moved before it anyway).

in order to avoid misunderstandings, i list herebelow my actions:

i've used on paperino the kernel 2.6.27.2 patched with ilpo's
21.10.2008 patch (see please comment 47 in
http://bugzilla.kernel.org/show_bug.cgi?id=11721, and NOT with the patch
contained in comment 58, right?)
i've modified the following files:
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
echo 0 > /proc/sys/net/ipv4/tcp_timestamps
echo 1 > /proc/sys/net/ipv4/tcp_sack

the results are that i CAN navigate (w3m kernel.org) and update my
system (apt-get update in debian).

should it be of any help to ilpo, i attach the usual tcpdump on the wan
eth of topolino (my home server/gw)

ciao!
aldo



[...]

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13:33:40.892753 IP 192.168.254.1.44529 > 204.152.191.5.80: S 2225948920:2225948920(0) win 5840 <nop,nop,sackOK,mss 1460>
	0x0000:  00a0 c543 5feb 0010 5ac5 681c 0800 4500  ...C_...Z.h...E.
	0x0010:  0030 8fac 4000 3f06 61d3 c0a8 fe01 cc98  .0..@.?.a.......
	0x0020:  bf05 adf1 0050 84ad 48f8 0000 0000 7002  .....P..H.....p.
	0x0030:  16d0 a61f 0000 0101 0402 0204 05b4       ..............
13:33:41.112954 IP 192.168.254.1.44529 > 204.152.191.5.80: . ack 2927042638 win 5840
	0x0000:  00a0 c543 5feb 0010 5ac5 681c 0800 4500  ...C_...Z.h...E.
	0x0010:  0028 8fad 4000 3f06 61da c0a8 fe01 cc98  .(..@.?.a.......
	0x0020:  bf05 adf1 0050 84ad 48f9 ae77 204e 5010  .....P..H..w.NP.
	0x0030:  16d0 040e 0000                           ......
13:33:41.113227 IP 192.168.254.1.44529 > 204.152.191.5.80: P 0:240(240) ack 1 win 5840
	0x0000:  00a0 c543 5feb 0010 5ac5 681c 0800 4500  ...C_...Z.h...E.
	0x0010:  0118 8fae 4000 3f06 60e9 c0a8 fe01 cc98  ....@.?.`.......
	0x0020:  bf05 adf1 0050 84ad 48f9 ae77 204e 5018  .....P..H..w.NP.
	0x0030:  16d0 09f0 0000 4745 5420 2f20 4854 5450  ......GET./.HTTP
	0x0040:  2f31 2e30 0d0a 5573 6572 2d41 6765 6e74  /1.0..User-Agent
	0x0050:  3a20 7733 6d2f 302e 352e 320d 0a41 6363  :.w3m/0.5.2..Acc