netdev - WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264 dev

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Date:	Tue, 18 Feb 2014 11:15:19 +0100
From:	poma <pomidorabelisima@...il.com>
To:	netdev@...r.kernel.org
CC:	Intel Corporation <linux.nics@...el.com>,
	Mailing-List fedora-kernel <kernel@...ts.fedoraproject.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Stanislaw Gruszka <sgruszka@...hat.com>,
	Josh Boyer <jwboyer@...hat.com>,
	"Justin M. Forbes" <jforbes@...hat.com>
Subject: WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264 dev_watchdog+0x276/0x280()


Ahoy!

Debugging S3 aka suspend produces 'WARNINGS':

Steps to Reproduce:
# echo core > /sys/power/pm_test
# cat /sys/power/pm_test
none [core] processors platform devices freezer
# echo mem > /sys/power/state
Results:
- dmesg-3.14.0-0.rc3.git0.1.fc21.x86_64+debug-pm_test-core.diff
  https://bugzilla.redhat.com/attachment.cgi?id=864436

Steps to Reproduce:
# echo processors > /sys/power/pm_test
# cat /sys/power/pm_test
none core [processors] platform devices freezer
# echo mem > /sys/power/state
Results:
- dmesg-3.14.0-0.rc3.git0.1.fc21.x86_64+debug-pm_test-processors.diff
  https://bugzilla.redhat.com/attachment.cgi?id=864438

Steps to Reproduce:
# echo platform > /sys/power/pm_test
# cat /sys/power/pm_test
none core processors [platform] devices freezer
# echo mem > /sys/power/state
Results:
- dmesg-3.14.0-0.rc3.git0.1.fc21.x86_64+debug-pm_test-platform.diff
  https://bugzilla.redhat.com/attachment.cgi?id=864439

RHBZ 1010764:
"[abrt] NETDEV WATCHDOG: em1 (e1000e): transmit queue 0 timed out"
https://bugzilla.redhat.com/show_bug.cgi?id=1010764

Tested with Rawhide 'kernel-debug-3.14.0-0.rc3.git0.1.fc21.x86_64'
http://koji.fedoraproject.org/koji/buildinfo?buildID=498711


poma

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