Re: [RFC] Prepend timestamp in msgbuf

On Oct 13, 2011, at 9:40 PM, Arnaud Lacombe wrote:

> Hi,
>=20
> On Thu, Oct 13, 2011 at 2:00 PM,  <lacombar@gmail.com> wrote:
>> From: Arnaud Lacombe <lacombar@gmail.com>
>>=20
>> Hi folks,
>>=20
>> There is many case recently when I really wished timestamp were =
present in the
>> post-mortem msgbuf. Such situation could be when userland application =
segfault
>> potentially triggering a panic/crash, or have information about the =
time-wise
>> location of a given message (kernel or userland).
>>=20
>> Attached patch is available in the git repository at:
>>  git://github.com/lacombar/freebsd.git master/topic/msgbuf-timestamp
>>=20
>> Arnaud Lacombe (3):
>>      msgbuf(4): convert `msg_needsnl' to a bit flag
>>      msgbuf(4): add logic to prepend timestamp on new line
>>      msgbuf(4): add a sysctl to toggle timestamp prepend
>>=20
>>  sys/kern/subr_msgbuf.c |   53 =
++++++++++++++++++++++++++++++++++++++++-------
>>  sys/sys/msgbuf.h       |    4 ++-
>>  2 files changed, 48 insertions(+), 9 deletions(-)
>>=20

Cool!

I've dreamt for something like this for a long time, it can be very =
useful.

Regards,
Nikolay

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