Comments on: Timestamping Linux kernel printk output in dmesg for fun and profit

By: OLSEN34Manuela

OLSEN34Manuela — Sun, 01 Aug 2010 01:29:17 +0000

Different people in the world get the personal loans from different creditors, because that is comfortable.

By: nishanth

nishanth — Sun, 04 Jul 2010 21:03:13 +0000

I use this

#!/usr/bin/perl -w

use strict;
chomp (my $uptime = `cat /proc/uptime`);
$uptime =~ s/^([\d\.]+)\s+.*/$1/;
my $time = time;
open(CMD,”dmesg|”) || die “$!\n”;
while() {
if (/^\[\s*(\d+)\.\d+\s*\]\s+(.*$)/) {
my $event = $time – ($uptime – $1);
$event = scalar(localtime($event));
print “$event: $2\n”;
} else { print; }
}
close;

By: Adam Harrison

Adam Harrison — Fri, 02 Jul 2010 16:29:13 +0000

Just a minor correction. I’m running RHEL5.5 (kernel 2.6.18), and it does NOT have PRINTK_TIME compiled in by default.

By: Andre Terra

Andre Terra — Tue, 17 Nov 2009 03:13:21 +0000

It’s a shame you don’t post more often. Lots of great tips here!

Cheers,
André

By: bek

bek — Thu, 05 Nov 2009 19:20:37 +0000

Came up with this instead, it’ll print the timestamp in a useful readable format, but thanks to Jeff’s page for the inspiration for it.

date -d “-`awk ‘{print $1}’ /proc/uptime` seconds + `dmesg | grep ‘Buffer I/O’ | tail -n 1 | egrep -o ‘[0-9]+\.[0-9]+’` seconds”

Doesn’t require BC as date can do addition/subtraction for us.

By: RichardOn

RichardOn — Tue, 26 May 2009 22:50:22 +0000

Interesting site, but much advertisments on him. Shall read as subscription, rss.

By: Vanchoony

Vanchoony — Thu, 01 Jan 1970 04:59:59 +0000

I would like to see a continuation of discussions on this topic.

By: essay paper

essay paper — Thu, 01 Jan 1970 04:59:59 +0000

thanks for the tips, and info.

Cheers