6993 – Problems with VJ compression with PPP

Bug 6993 - Problems with VJ compression with PPP

Summary: Problems with VJ compression with PPP

Keywords:
Status:	CLOSED CURRENTRELEASE
Alias:	None
Product:	Red Hat Linux
Classification:	Retired
Component:	ppp
Sub Component:
Version:	6.1
Hardware:	i386
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Nalin Dahyabhai
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	1999-11-13 22:57 UTC by Tom Cross
Modified:	2008-05-01 15:37 UTC (History)
CC List:	0 users
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:	2003-01-24 23:31:23 UTC

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Description Tom Cross 1999-11-13 22:57:08 UTC

I have a RedHat 6.1 box with Dual Pentium-Pro processors.  The RH6.1
install correctly identified this and I'm currently using 2-2.12-20smp for
i686.

When I try to connect via PPP to the internet, I get the following in
/var/log/messages:
Nov 13 14:59:15 hal diald[1121]: Running pppd (pid = 1197).
Nov 13 14:59:15 hal modprobe: can't locate module char-major-108
Nov 13 14:59:15 hal pppd[1197]: pppd 2.3.10 started by root, uid 0
Nov 13 14:59:15 hal pppd[1197]: Using interface ppp0
Nov 13 14:59:15 hal pppd[1197]: Connect: ppp0 <--> /dev/ttyS0
Nov 13 14:59:21 hal pppd[1197]: Remote message: Login Succeeded
Nov 13 14:59:48 hal pppd[1197]: Connection terminated.
Nov 13 14:59:48 hal pppd[1197]: Exit.

I enabled debug for pppd and found this:


Nov 13 16:32:09 hal pppd[752]: rcvd [PAP AuthAck id=0x2 "Login Succeeded"]
Nov 13 16:32:09 hal pppd[752]: Remote message: Login Succeeded
Nov 13 16:32:09 hal pppd[752]: rcvd [IPCP ConfReq id=0x1 <compress VJ 0f00>
<addr 204.221.242.1>]
Nov 13 16:32:12 hal pppd[752]: rcvd [IPCP ConfReq id=0x2 <compress VJ 0f00>
<addr 204.221.242.1>]
Nov 13 16:32:15 hal pppd[752]: rcvd [IPCP ConfReq id=0x3 <compress VJ 0f00>
<addr 204.221.242.1>]
Nov 13 16:32:18 hal pppd[752]: rcvd [IPCP ConfReq id=0x4 <compress VJ 0f00>
<addr 204.221.242.1>]
Nov 13 16:32:22 hal pppd[752]: rcvd [IPCP ConfReq id=0x5 <compress VJ 0f00>
<addr 204.221.242.1>]


It LOOKS like it can't to VJ header compression.  I thought it might have
been a mis-compiled kernel so I recompiled make sure PPP was checked as a
module (it was).  My new kernel still did not work.

I will try this with a UP and post the results.

Is there a known problem with PPP/SMP/VJ?

Comment 1 Tom Cross 1999-11-15 17:23:59 UTC

I tried the Uniprocessor kernel that the installer installed for me and I had
exactly the same results with PPP and VJ.

Comment 2 Michael K. Johnson 1999-11-19 21:38:59 UTC

No, it can certainly do vj compression.

Can you give me the output of
rpm -q ppp initscripts

Thanks.

Comment 3 Tom Cross 1999-11-19 21:51:59 UTC

[tomc@hal tomc]$ rpm -q ppp initscripts
ppp-2.3.10-3
initscripts-4.63-1


I forgot to mention that I have basically done a rpm -UvhF *.rpm from the 6.1
updates directory.

Comment 4 Nalin Dahyabhai 2000-02-29 14:24:59 UTC

Others have reported that adding "novj" to their /etc/ppp/options file improves
things for them.  This is too rare an occurrence to be sure it's a bug in the
Linux ppp driver -- what kind of system is on the other end of the line?

Comment 5 Stephen John Smoogen 2003-01-24 23:31:23 UTC

Bug 6993 is being closed because bug was needing info since 2000, and neither
original bug reporter or others added any information.

Note You need to log in before you can comment on or make changes to this bug.