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Bug#855116: marked as done (linux-image-4.9.0-1-rt-amd64: error messages on boot about NOHZ and local_softirq_pending)

Your message dated Mon, 27 Feb 2017 14:08:40 +0000
with message-id <1488204520.2819.10.camel@decadent.org.uk>
and subject line Re: Bug#855116: linux-image-4.9.0-1-rt-amd64: error messages on boot about NOHZ and local_softirq_pending
has caused the Debian Bug report #855116,
regarding linux-image-4.9.0-1-rt-amd64: error messages on boot about NOHZ and local_softirq_pending
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
855116: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855116
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: src:linux
Version: 4.9.6-3
Severity: normal


Dear Maintainer,

I see the following error messages on 2 of my test systems:

# journalctl | grep NOHZ
Feb 13 14:12:25 irancy kernel: NOHZ: local_softirq_pending 100
Feb 13 14:12:25 irancy kernel: NOHZ: local_softirq_pending 100
Feb 13 14:12:27 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:34 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:34 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:34 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:34 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:36 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:36 irancy kernel: NOHZ: local_softirq_pending 02
Feb 13 14:12:36 irancy kernel: NOHZ: local_softirq_pending 02

# journalctl | grep NOHZ
févr. 14 10:44:37 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:38 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:40 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:40 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02
févr. 14 10:44:50 jophur kernel: NOHZ: local_softirq_pending 02

I don't know if they are real errors, but they look like errors because they are displayed in red both by dmesg and journalctl.  They also appear on the screen even if the kernel is booted with the "quiet" option.  The non -rt kernel flavor does not output those messages.


-- Package-specific info:
** Version:
Linux version 4.9.0-1-rt-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170124 (Debian 6.3.0-5) ) #1 SMP PREEMP$

** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.9.0-1-rt-amd64 root=UUID=cfd58a06-e091-4822-88c2-4b93329bb3d0 ro vsyscall=none security=apparmor $

** Not tainted

-- 
Laurent.

--- End Message ---
--- Begin Message --- 
Version: 4.9.10-1

On Mon, 2017-02-27 at 13:35 +0100, Laurent Bonnaud wrote:
> On 22/02/2017 12:38, Laurent Bonnaud wrote:
> 
> > I will test again for the "100" errors when my other test system
> > becomes available again...
> 
> Those errors are gone, too.  Thanks for the fix!

Thanks for letting us know.

Ben.

-- 
Ben Hutchings
This sentence contradicts itself - no actually it doesn't.

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