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Bug 1334327

Summary: [1.6] cannot up device after 20 successful uppings
Product: Red Hat Enterprise Linux 7 Reporter: Vladimir Benes <vbenes>
Component: ModemManagerAssignee: Lubomir Rintel <lrintel>
Status: CLOSED NEXTRELEASE QA Contact: Desktop QE <desktop-qa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.3CC: aloughla, atragler, dcbw, desktop-qa-list, lrintel, mleitner, pgeorgie, rkhan, sukulkar, vbenes
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 1334325 Environment:
Last Closed: 2018-06-19 11:32:57 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1334325    
Bug Blocks:    
Attachments:
Description Flags
debug logs
none
Script for multiple reconnections of a GSM device none

Description Vladimir Benes 2016-05-09 12:05:17 UTC 
+++ This bug was initially created as a clone of Bug #1334325 +++

Description of problem:
I've tried to up device several times (like 20x) and after a while device seems to be dead. Neither MM restart nor for i in $(ls /sys/bus/usb/devices/usb*/authorized); do echo 0 > $i; done; for i in $(ls /sys/bus/usb/devices/usb*/authorized); do echo 1 > $i; done helps. 


Version-Release number of selected component (if applicable):
ModemManager-1.6-0.3.rc3.el7.centos.lr3.x86_64
NetworkManager-1.2.0-1.el7.centos.rh1331395.x86_64

--- Additional comment from Vladimir Benes on 2016-05-09 07:56:48 EDT ---

Bus 001 Device 004: ID 0bdb:190d Ericsson Business Mobile Networks BV

--- Additional comment from Vladimir Benes on 2016-05-09 07:57 EDT ---



--- Additional comment from Vladimir Benes on 2016-05-09 07:57:33 EDT ---

other machines still work so it's not a BTS issue
Comment 1 Vladimir Benes 2016-05-09 12:06:00 UTC 
nnot sure if this is not the same bug, but I see the same behavior on Huawei modem 
Bus 001 Device 005: ID 12d1:1001 Huawei Technologies Co., Ltd. E169/E620/E800 HSDPA Modem
Comment 2 Vladimir Benes 2016-05-09 12:06:19 UTC 
Created attachment 1155260 [details]
debug logs
Comment 3 Lubomir Rintel 2016-05-09 12:24:19 UTC 
Hmm, getting ConfNaks here:

May 09 08:03:45 wlan-intel-6150.wlan.rhts.eng.bos.redhat.com pppd[10599]: rcvd [IPCP ConfNak id=0x12 <ms-dns1 10.11.12.13> <ms-dns2 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
May 09 08:03:45 wlan-intel-6150.wlan.rhts.eng.bos.redhat.com pppd[10599]: sent [IPCP ConfReq id=0x13 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns2 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
May 09 08:03:46 wlan-intel-6150.wlan.rhts.eng.bos.redhat.com pppd[10599]: rcvd [IPCP ConfNak id=0x13 <ms-dns1 10.11.12.13> <ms-dns2 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
May 09 08:03:46 wlan-intel-6150.wlan.rhts.eng.bos.redhat.com pppd[10599]: sent [IPCP ConfReq id=0x14 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns2 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>]
Comment 4 Dan Williams 2016-07-19 17:09:15 UTC 
Vlad, can you try turning off VJ compression for this connection?

nmcli con mod <name or uuid> ppp.no-vj-comp true

and see what the pppd output is then?  It might be that the firmware doesn't like the VJ compression request.
Comment 5 sushil kulkarni 2017-07-12 11:43:37 UTC 
Hi Vlad,

Can you please re-try the test on 7.4?

Thanks,
Sushil
Comment 6 Vladimir Benes 2018-06-18 11:49:09 UTC 
Pavlin,
could you please retest and close if it's not visible with current version?

Thanks you a lot.
Comment 7 Pavlin Georgiev 2018-06-19 11:31:30 UTC 
Created attachment 1452914 [details]
Script for multiple reconnections of a GSM device
Comment 8 Pavlin Georgiev 2018-06-19 11:32:57 UTC 
TEST SETUP

Distro: RHEL 7.6
Component version:
NetworkManager-1.10.2-14.el7_5.x86_64
ModemManager-1.6.10-1.el7.x86_64
usb_modeswitch-2.5.1-1.el7.x86_64
usb_modeswitch-data-20170806-1.el7.noarch


TEST PROCEDURE
1. Check if a GSM device is available on the system.
2. Create a new connection using that device.
3. Activate the connection.
4. Check connection's status.
5. If it's active then disconnect it and delete it.
6. Start automated script for multiple reconnections of the GSM device.


RESULTS
Upgrading component: ModemManager
from: 1.6-0.3.rc3.el7.centos.lr3
  to: 1.6.10-1.el7
has fixed the bug.

The GSM device made 30 reconnections without errors.