Control: tag -1 upstream patch On Tue, 2017-02-14 at 11:52 +0100, Laurent Bonnaud wrote: > 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. I think these errors (at least those with "02" at the end) are fixed by "softirq: wake the timer softirq if needed" which will be included in the next update (version 4.9.9-1). Let us know whether that fixes the problem for you, once it's available. Ben. -- Ben Hutchings Reality is just a crutch for people who can't handle science fiction.
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