/var/log/messages is scrambled!

Ralf Corsepius rc040203 at freenet.de
Thu Feb 27 08:36:05 UTC 2014


On 02/27/2014 08:56 AM, Adam Williamson wrote:
> On Thu, 2014-02-27 at 08:25 +0100, Ralf Corsepius wrote:
>> On 02/27/2014 08:08 AM, Adam Williamson wrote:
>>> On Thu, 2014-02-27 at 07:10 +0100, Ralf Corsepius wrote:
>>>> On 02/27/2014 06:43 AM, Chris Murphy wrote:
>>>>>
>>>>> On Feb 26, 2014, at 9:24 AM, Neal Becker <ndbecker2 at gmail.com> wrote:
>>>>>
>>>>>> sudo journalctl --verify
>>>>>> all say 'PASS'
>>>>>
>>>>> OK good news. It looks like some sort of throttling by rsyslogd. I'm vaguely curious if it's some runaway/annoyed process is dumping a lot of message into the journal, and whether the journal can keep up or if it's also affected and throttles.
>>>
>>>> Could it be (wild guess), rsyslogd and journald when being used
>>>> simultaneously, are having locking issues?
>>>
>>> I really doubt it. The current rsyslog is explicitly designed to act as
>>> a journald consumer. That was the intent all along.
>>
>> How about log-messages on the console?
>>
>> The symptom I am struggling with is my console is freezing when journald
>> sent a message to the console.
>>
>> Some weeks ago, I reported the details on some fp.org list (IRC users@),
>> but never received a satisfactory reply.
Just found the original post:
https://lists.fedoraproject.org/pipermail/test/2013-December/119352.html

>> So far, after weeks of
>> struggling my (so far seeingly working) work-around is to "yum remove
>> rsyslogd combined with "dmsg -D", without knowing the actual cause.
>
> Hum - seems odd, but I don't get console log messages very often so I
> can't say I haven't seen it.

Thanks to this long-term persisting kernel bug
https://bugzilla.redhat.com/show_bug.cgi?id=769747
I am observing them once per minute at average (This truely nagging bug 
has been reported on various occasions across probably all distros, but 
seems to have been ignored so far.)

> Certainly sounds like a bug. If I were you
> I'd just file it, probably against rsyslog.
Well, to be investigated -  I haven't tried journald without "dmsg -D", 
nor have I tried to reinstall rsyslogd, yet.
I am inclined to be believe there is a journald vs. kernel issue, 
because before journald came around, I haven't had these freezes.

Ralf





More information about the test mailing list