Strange kernel log message
ceri at submonkey.net
Tue Nov 27 05:34:46 PST 2007
On Mon, Nov 26, 2007 at 07:58:41PM +0000, Bruce Cran wrote:
> Giorgos Keramidas wrote:
>> On 2007-11-26 09:58, Ceri Davies <ceri at submonkey.net> wrote:
>>> So I have this in my security run output:
>>> kernel log messages:
>>> +++ /tmp/security.hLYJI0kF Sun Nov 25 03:01:02 2007
>>> +<<<<222>2>>>NNNMNMMIII M III SIISAS SAAA 3 303,020,0 ,, EE
>>> IEIIESSSAIAA S A f ffffff
>>> WTF now?
>>> I'm not sure if that's a real kernel message that got garbled or whether
>>> I should be worried about naughtiness.
>> It looks like multiple messages overlapping each other. Removing 3
>> characters every 4 bytes in the output produces things which seem
>> vaguely recognizable:
>> <22NNI II A ,,,EISA fff
>> <<2>NMI SS 300 ISAAfff
>> There's a sysctl option which you can tweak to make this less likely to
>> happen, but I am not sure about its name. Our console gurus can help
>> you track it down and tune its value :)
> The kernel option I've seen mentioned before to at least make this less
> common is:
> options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
Aha, thanks guys.
That must be wonderful! I don't understand it at all.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20071127/3ceb2a15/attachment.pgp
More information about the freebsd-questions