PPP/Modem connection problems starting somewhere between 2.2.14(maybe 15) and 2.2.18

PPP/Modem connection problems starting somewhere between 2.2.14(maybe 15) and 2.2.18

[Matthew Fredrickson]

I'm not positive if this is a bug, I'm only able to confirm this from one
other source.  Somewhere between (I can't remember exactly which kernel my
server started on) ~2.2.14(or 15) and 2.2.18 my ppp connection
periodically hangs and I have to restart the connection.  My situation is
a modem that is dialed into the internet pretty close to 24/7.  Sometimes
the connection seems to hang up (but ifconfig reports ppp0 as being there
and up w/ and IP address).  The only solution to this problem is killing
wvdial and wvdial'ing again.  Sometimes (pretty randomly I might add) even
when I redial it has this problem when it dials up except I can get a few
kilobytes and then the connection freezes up.  I can confirm this by a
friend of mine who is just running a periodic dialup box but has seen
similar troubles in the same time frame.  He and I are both running debian
(potato) on the boxen involved.  This problem has persisted and still
occurs even as I've upgraded the kernel but I think (not sure) that it has
gotten a little better w/2.2.18.  I'm not sure how I can replicate it, but
sometimes when I get home I find the internet connection not working and
the linux box says ppp0 is up.  I would appreciate any help I can get.
I'm about to go look at historical kernel changelogs.  Thanks.

-- 
Matthew Fredrickson AIM MatthewFredricks
ICQ 13923212 matt@NOSPAMfredricknet.net 
http://www.fredricknet.net/~matt/
"Everything is relative"
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Re: PPP/Modem connection problems starting somewhere between 2.2.14(maybe 15) and 2.2.18

[Adrian Bridgett]

On Wed, Jan 24, 2001 at 17:30:38 -0600 (+0000), Matthew Fredrickson wrote:
> I'm not positive if this is a bug, I'm only able to confirm this from one
> other source.  Somewhere between (I can't remember exactly which kernel my
> server started on) ~2.2.14(or 15) and 2.2.18 my ppp connection
> periodically hangs and I have to restart the connection.  My situation is
[snip]

Ditto.  Using evil winmodem here and Debian (ppp-2.4.0f-1).  2.2.19pre3 at
the moment but it's been happening for a while.  Things seemed better when I
turned on default-asyncmap, however it still occasionally goes belly up
(almost _always_ when scping files out (uploading Debian packages)).  Last
time I checked it also happend with my 28.8k USB modem (a normal modem, that
one).

I've found a magic fix and when I've got time I'll try and burrow though the
pppd source to try and find out why.  The magic fix? Turn on recording in
pppd (i.e. add "record /tmp/foo"  to /etc/ppp/options).  I'd be interested
if it fixes it for you.

Adrian

Email: adrian.bridgett@iname.com
Windows NT - Unix in beta-testing. GPG/PGP keys available on public key servers
Debian GNU/Linux  -*-  By professionals for professionals  -*-  www.debian.org
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Re: PPP/Modem connection problems starting somewhere between 2.2.14(maybe 15) and 2.2.18

[Matthew Fredrickson]

On Sun, Jan 28, 2001 at 07:48:29PM +0000, Adrian Bridgett wrote:
> On Wed, Jan 24, 2001 at 17:30:38 -0600 (+0000), Matthew Fredrickson wrote:
> > I'm not positive if this is a bug, I'm only able to confirm this from one
> > other source.  Somewhere between (I can't remember exactly which kernel my
> > server started on) ~2.2.14(or 15) and 2.2.18 my ppp connection
> > periodically hangs and I have to restart the connection.  My situation is
> [snip]
> 
> Ditto.  Using evil winmodem here and Debian (ppp-2.4.0f-1).  2.2.19pre3 at
> the moment but it's been happening for a while.  Things seemed better when I
> turned on default-asyncmap, however it still occasionally goes belly up
> (almost _always_ when scping files out (uploading Debian packages)).  Last
> time I checked it also happend with my 28.8k USB modem (a normal modem, that
> one).
> 
> I've found a magic fix and when I've got time I'll try and burrow though the
> pppd source to try and find out why.  The magic fix? Turn on recording in
> pppd (i.e. add "record /tmp/foo"  to /etc/ppp/options).  I'd be interested
> if it fixes it for you.

Just put it in, will see if it helps any.  FWIW, my modem is a USR
ISA 56k, and had been rock solid until around there.  My friend also had
the same issues, and before we'd talked to each other about it, we'd both
assumed that possibly the modem might be failing.  After finding that we
both had troubles, and around the same "kernel time frame", we knew that
something must have happened in the kernel that either broke something
with the PPP or the kernel end of it.  Thanks for responding.

-- 
Matthew Fredrickson AIM MatthewFredricks
ICQ 13923212 matt@NOSPAMfredricknet.net 
http://www.fredricknet.net/~matt/
"Everything is relative"
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Re: Kernel PPP/Modem connection problems starting somewhere between 2.2.14(maybe 15) and 2.2.18

[Matthew Fredrickson]

On Sun, Jan 28, 2001 at 07:48:29PM +0000, Adrian Bridgett wrote:
> On Wed, Jan 24, 2001 at 17:30:38 -0600 (+0000), Matthew Fredrickson wrote:
> > I'm not positive if this is a bug, I'm only able to confirm this from one
> > other source.  Somewhere between (I can't remember exactly which kernel my
> > server started on) ~2.2.14(or 15) and 2.2.18 my ppp connection
> > periodically hangs and I have to restart the connection.  My situation is
> [snip]
> 
> Ditto.  Using evil winmodem here and Debian (ppp-2.4.0f-1).  2.2.19pre3 at
> the moment but it's been happening for a while.  Things seemed better when I
> turned on default-asyncmap, however it still occasionally goes belly up
> (almost _always_ when scping files out (uploading Debian packages)).  Last
> time I checked it also happend with my 28.8k USB modem (a normal modem, that
> one).
> 
> I've found a magic fix and when I've got time I'll try and burrow though the
> pppd source to try and find out why.  The magic fix? Turn on recording in
> pppd (i.e. add "record /tmp/foo"  to /etc/ppp/options).  I'd be interested
> if it fixes it for you.

I'm not positive, but so far, it looks like that fixed the problem.  I
don't know what would cause it to break like that, but I think I'm going
to go hunt around changelogs to see if there are any major changes in that
kernel version range.

-- 
Matthew Fredrickson AIM MatthewFredricks
ICQ 13923212 matt@NOSPAMfredricknet.net 
http://www.fredricknet.net/~matt/
"Everything is relative"
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