I experience the same problem. Seen it with all recent kernels I tried:
2.1.109, 2.1.111, 2.1.115. Using PPP 2.3.5 over an analogue 28k8 modem
connection. Downloading (isp->me) works like a charm, until I try to upload
(me->isp) some files. Uploading appears to trigger the 'stall'.
Watching "pppstat -w 1" shows that during the stall no packets are going in
or out for a long period of time. Every 15-60s a single or a few packets are
send (only 100 bytes or so). Before the stall, during uploading the ppp link
seems to be saturated with outgoing data.
> Pings working, and quickly too, was the strange thing. A reboot
> (ouch! Too much like a famous company's product) cured everything.
Same here, ping (even ping -f) works during the stall. To cure the problem I
do not have to reboot. Putting the ppp link down and up (ie. establishing
new connection to my isp) temporarily "cures" the problem.
> One more query... when FTP-ing something, and turning 'hash on', the
> ftp program gives me about thirty hash-es immediately, as if
> measuring what has been sent into some buffer rather than measuring
> how many 1024-byte blocks had actually arrived. Should I be
> expecting this?
Experiencing the same thing. But I only notice this on PPP connections.
Hints to diagnose (tcpdump magic?) or even solve this problem are
appreciated. This is really a show stopper!
Regards,
Frank.
+---- --- -- - - - -
|Frank van de Pol -o)
|F.K.W.van.de.Pol@inter.NL.net /\\
| _\_v
|Linux - Why use Windows, since there is a door?
|
|ALSA Sequencer: http://www.inter.nl.net/users/F.K.W.van.de.Pol/alsa/
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