Date: Tue, 12 Oct 2004 10:10:04 -0700
From: Greg KH <greg@kroah.com>
To: Oleksiy <Oleksiy@kharkiv.com.ua>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: pl2303/usb-serial driver problem in 2.4.27-pre6
Message-ID: <20041012171004.GB11750@kroah.com>
References: <416A6CF8.5050106@kharkiv.com.ua>
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On Mon, Oct 11, 2004 at 02:22:32PM +0300, Oleksiy wrote:
> Hi all,
> 
> I have a problem using GPRS inet vi my Siemens S55 attached with USB 
> cable since kernel version 2.4.27-pre5, the link is established well, 
> but then no packets get received, looking with tcpdump shows outgoing 
> ping packets and just few per several minutes received back. I'm unable 
> to ping, do nslookup, etc.
> The problem started when i switched from kernel 2.4.26 (linux slackware 
> 10.0) to 2.4.28-pre3. None of ppp otions haven't changed and all the 
> same options were set during kerenel config. So i decided to test all 
> kernels between 2.4.26 and 2.4.28-pre4 (also not working). Link works 
> well in 2.4.27-pre5 and stop working in 2.4.27-pre6. No "strange" 
> messages or errors in the logs. firewall is disabled (ACCEPT for all).

Can you enable CONFIG_DEBUG?

There were no pl2303 driver changes between 2.4.27-pre5 and pre6, so I
don't think it's that driver...

thanks,

greg k-h
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