0001796: Some Bugs that crashes the Kernel of RHEL 7.6

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Date Submitted

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0001796

aMule

Multi Platform

public

2019-01-31 06:32

2019-02-10 21:59

Reporter

amer.hwitat

Assigned To

Priority

normal

Severity

minor

Reproducibility

sometimes

Status

new

Resolution

open

Platform

OSP 14

RHEL 7.6 Maipo

OS Version

RHEL 7.6 Maipo

Product Version

2.3.2

Target Version

Fixed in Version

Summary

0001796: Some Bugs that crashes the Kernel of RHEL 7.6

Description

[root@localhost log]#
Message from syslogd@localhost at Jan 23 02:23:31 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [ovsdb-server:10088]

[root@amer network-scripts]#
Message from syslogd@amer at Jan 27 12:46:38 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [nova-api:102738]

Message from syslogd@amer at Jan 27 19:26:19 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#5 stuck for 26s! [swapper/5:0]

Message from syslogd@amer at Jan 27 19:26:19 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#1 stuck for 27s! [dmeventd:71548]

Message from syslogd@amer at Jan 27 19:27:30 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [6_scheduler:64928]

Message from syslogd@amer at Jan 27 19:31:25 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ksoftirqd/5:34]

Message from syslogd@amer at Jan 27 19:32:42 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#3 stuck for 33s! [swift-object-up:11358]

Message from syslogd@amer at Jan 27 19:33:55 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#3 stuck for 24s! [dmeventd:71548]

Message from syslogd@amer at Jan 27 19:34:25 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#2 stuck for 65s! [kworker/2:0:59993]

Message from syslogd@amer at Jan 27 19:37:50 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#2 stuck for 24s! [kworker/u256:3:8447]

Message from syslogd@amer at Jan 27 19:37:50 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ksoftirqd/5:34]

Message from syslogd@amer at Jan 27 19:37:51 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [systemd:11968]

The CPU has been disabled by the guest operating system. Power off or reset the virtual machine.

[root@amer network-scripts]#
Message from syslogd@amer at Jan 27 12:46:38 ...
kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [nova-api:102738]

these Bugs of OSP 14 Nova were recorded because the system depends heavily on NSlookup to process it's function call, and I reported it to RH, launchpad.net,Bgzilla, and RDO.

I have configured /etc/hosts several times and setup a named service (DNS), the service Nova overlooks the hosts and issues NSlookups to DNS, rabbitMQ fails and Nova because it depends on RabbitMQ in it's infrastructure code in python.

Steps To Reproduce

install OSP 14 and drop connectivity, it will produce some Bugs

Additional Information

it's on RHEL 7.6 platform and I don't really know if it is valid for Ubuntu, or any Debian variant, it shows that Kernel and Firmware is not compatible, so if you want to install OSP 14 , choose an updated version of firmware, and new equipment.

Issue History
Date Modified	Username	Field	Change
2019-01-31 06:32	amer.hwitat	New Issue
2019-01-31 06:32	amer.hwitat	File Added: Red Hat Enterprise Linux 7 64-bit (2)-2019-01-28-03-57-27.png
2019-02-10 21:59	ValdikSS	Note Added: 0003719

Notes
(0003719) ValdikSS (reporter) 2019-02-10 21:59	This is not an amule bug, this is because of high I/O load. You should tune permitted load with cgroups, maybe tune sysctl vm.dirty_bytes/vm.dirty_background_bytes. Search "linux bug 12309" for more information.

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