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Bug 1852612 - NM OVS: Segfault while configuring OVS conns and bouncing networking
Summary: NM OVS: Segfault while configuring OVS conns and bouncing networking
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: NetworkManager
Version: 8.2
Hardware: Unspecified
OS: Unspecified
urgent
high
Target Milestone: rc
: 8.0
Assignee: Beniamino Galvani
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-06-30 21:02 UTC by Tim Rozet
Modified: 2020-11-04 01:51 UTC (History)
10 users (show)

Fixed In Version: NetworkManager-1.26.0-0.2.1.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-11-04 01:50:15 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)
core dump, logs (1.54 MB, application/gzip)
2020-06-30 21:07 UTC, Tim Rozet 		no flags Details
Reproducer script (939 bytes, application/x-shellscript)
2020-07-02 15:59 UTC, Beniamino Galvani 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:4499 0 None None None 2020-11-04 01:50:36 UTC

Description Tim Rozet 2020-06-30 21:02:12 UTC 
segfault at 8 ip 0000560c59f9a734 sp 00007ffcac080a20 error 4 in NetworkManager[560c59df8000+302000]

See attached NM logs and core dump.

OS version is rhcos:
[root@test-q9gz9-bootstrap ~]# cat /etc/*release*
NAME="Red Hat Enterprise Linux CoreOS"
VERSION="46.82.202006190240-0"
VERSION_ID="4.6"
OPENSHIFT_VERSION="4.6"
RHEL_VERSION="8.2"
PRETTY_NAME="Red Hat Enterprise Linux CoreOS 46.82.202006190240-0 (Ootpa)"
ID="rhcos"
ID_LIKE="rhel fedora"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:8::coreos"
HOME_URL="https://www.redhat.com/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="OpenShift Container Platform"
REDHAT_BUGZILLA_PRODUCT_VERSION="4.6"
REDHAT_SUPPORT_PRODUCT="OpenShift Container Platform"
REDHAT_SUPPORT_PRODUCT_VERSION="4.6"
OSTREE_VERSION='46.82.202006190240-0'
Red Hat Enterprise Linux CoreOS release 4.6

NM versions:
[root@test-q9gz9-bootstrap ~]# rpm -qa |grep NetworkManager
NetworkManager-libnm-1.22.8-4.el8.x86_64
NetworkManager-ovs-1.22.8-4.el8.x86_64
NetworkManager-1.22.8-4.el8.x86_64
NetworkManager-team-1.22.8-4.el8.x86_64
NetworkManager-tui-1.22.8-4.el8.x86_64
Comment 1 Tim Rozet 2020-06-30 21:07:43 UTC 
Created attachment 1699385 [details]
core dump, logs
Comment 2 Thomas Haller 2020-06-30 21:45:33 UTC 
accessing core files in this form is really cumbersome, because I don't have the same binaries on my machine.

Could you open the dump with `gdb /usr/sbin/NetworkManager core.NetworkManager.0.a85df14566484415ba44659e39c8c6ff.129289.1593442258000000` and show the full backtrace (with `bt`)? (make sure to install debug symbols first, so that the backtrace is meaningful).
Comment 3 Beniamino Galvani 2020-07-02 12:45:30 UTC 
#0  dhcp4_start (self=0x560c5b2e0750) at src/devices/nm-device.c:8383
8383                    _LOGW (LOGD_DHCP4, "failure to start DHCP: %s", error->message);
[Current thread is 1 (Thread 0x7ff44679d200 (LWP 129289))]

(gdb) backtrace
#0  0x0000560c59f9a734 in dhcp4_start (self=0x560c5b2e0750) at src/devices/nm-device.c:8383
#1  0x0000560c59f9ae75 in nm_device_dhcp4_renew (self=self@entry=0x560c5b2e0750, release=release@entry=0) at src/devices/nm-device.c:8413
#2  0x0000560c59fa1bd0 in nm_device_update_dynamic_ip_setup (self=self@entry=0x560c5b2e0750) at src/devices/nm-device.c:3485
#3  0x0000560c59e73b18 in do_sleep_wake (self=self@entry=0x560c5b1b9090, sleeping_changed=sleeping_changed@entry=0) at src/nm-manager.c:6032
#4  0x0000560c59e73d43 in _internal_enable (enable=1, self=0x560c5b1b9090) at src/nm-manager.c:6150
#5  0x0000560c59e73d43 in enable_net_done_cb (chain=<optimized out>, context=0x560c5b295630, user_data=0x560c5b1b9090) at src/nm-manager.c:6184
#6  0x0000560c59e6afc5 in pk_call_cb (auth_manager=<optimized out>, call_id=<optimized out>, user_data=0x560c5b238e90, error=0x0, is_challenge=0, is_authorized=1) at src/nm-auth-utils.c:309
#7  0x0000560c59e6afc5 in pk_call_cb (auth_manager=<optimized out>, call_id=<optimized out>, is_authorized=1, is_challenge=0, error=0x0, user_data=0x560c5b238e90) at src/nm-auth-utils.c:271
#8  0x0000560c59e68f68 in _call_id_invoke_callback (call_id=0x560c5b260200, is_authorized=<optimized out>, is_challenge=<optimized out>, error=<optimized out>) at src/nm-auth-manager.c:154
#9  0x0000560c59e69059 in _call_on_idle (user_data=0x560c5b260200) at src/nm-auth-manager.c:269
#10 0x00007ff44463efbb in g_idle_dispatch () at /lib64/libglib-2.0.so.0
#11 0x00007ff44464267d in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#12 0x00007ff444642a48 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#13 0x00007ff444642d72 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#14 0x0000560c59e3d5a9 in main (argc=<optimized out>, argv=<optimized out>) at src/main.c:456

NetworkManager[129289]: <trace> [1593442258.2135] dbus-object[12e751b93e8f0a84]: export: "/org/freedesktop/NetworkManager/DHCP4Config/14"
NetworkManager[129289]: ((src/platform/nmp-object.c:1920)): assertion '<dropped>' failed
NetworkManager[129289]: <warn>  [1593442258.2140] device (br-ex): ipv4.dhcp-client-id: failure to generate client id (missing link-layer address). Use random client id
NetworkManager[129289]: <debug> [1593442258.2140] device[3d71857238195383] (br-ex): ipv4.dhcp-client-id: use "mac" client ID: 00:d9:11:4e:76:9e:02:c5:d0:b3:00:0e:6b:ab:cc:7a
NetworkManager[129289]: ((src/dhcp/nm-dhcp-manager.c:237)): assertion '<dropped>' failed
systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEGV
Comment 4 Beniamino Galvani 2020-07-02 15:59:54 UTC 
Created attachment 1699667 [details]
Reproducer script
Comment 5 Beniamino Galvani 2020-07-02 16:18:20 UTC 
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/561
Comment 9 Vladimir Benes 2020-07-08 12:48:13 UTC 
CI test added:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager-ci/-/merge_requests/600
Comment 12 errata-xmlrpc 2020-11-04 01:50:15 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4499
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