Date: Fri, 14 Oct 2011 09:57:56 +0300 From: Nikolay Denev <ndenev@gmail.com> To: Arnaud Lacombe <lacombar@gmail.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: [RFC] Prepend timestamp in msgbuf Message-ID: <45812C38-5FD2-43C4-825E-94B0E03A7AA6@gmail.com> In-Reply-To: <CACqU3MWxn0rvbL5d7Vot35A%2BpfMDMEQdqmDgAaUABwzTxoH41Q@mail.gmail.com> References: <4e972734.52b1e00a.15ed.ffffd873@mx.google.com> <CACqU3MWxn0rvbL5d7Vot35A%2BpfMDMEQdqmDgAaUABwzTxoH41Q@mail.gmail.com>
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On Oct 13, 2011, at 9:40 PM, Arnaud Lacombe wrote: > Hi, > > On Thu, Oct 13, 2011 at 2:00 PM, <lacombar@gmail.com> wrote: >> From: Arnaud Lacombe <lacombar@gmail.com> >> >> Hi folks, >> >> 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). >> >> Attached patch is available in the git repository at: >> git://github.com/lacombar/freebsd.git master/topic/msgbuf-timestamp >> >> 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 >> >> sys/kern/subr_msgbuf.c | 53 ++++++++++++++++++++++++++++++++++++++++------- >> sys/sys/msgbuf.h | 4 ++- >> 2 files changed, 48 insertions(+), 9 deletions(-) >> Cool! I've dreamt for something like this for a long time, it can be very useful. Regards, Nikolayhelp
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