printk and kernel log

[Kevin Wilson]

Thanks!
One more question, if I may:
The kernel log says:
Jun 24 03:43:06 localhost kernel: [ 1858.148661] in my_func1

where is the "localhost" from ? the "hostname"  util does **not** show
localhost, by amd1. I am not sure, if remember well, there were
machines
on which the hostname appeared instead of localhost

rgs
Kevin


On Tue, Jun 25, 2013 at 6:07 PM,  <Valdis.Kletnieks at vt.edu> wrote:
> On Tue, 25 Jun 2013 12:04:08 +0300, Kevin Wilson said:
>> Hi,
>> You are right, thanks!
>> disabling CONFIG_PRINTK_TIME prevented this timestamps.
>>
>> I believe they should have provide some sysfs entry for this, sorry
>> they did not do so
>
> Well actually, there's a boot-time cmdline parameter:
>
>         printk.time=    Show timing data prefixed to each printk message line
>                         Format: <bool>  (1/Y/y=enable, 0/N/n=disable)
>
> And since the code that handles it treats it as a module parameter (even though
> it's always builtin), you get this for free:
>
> % ls -l /sys/module/printk/parameters
> total 0
> -rw-r--r--. 1 root root 4096 Jun 25 11:05 always_kmsg_dump
> -rw-r--r--. 1 root root 4096 Jun 25 11:05 console_suspend
> -rw-r--r--. 1 root root 4096 Jun 25 11:05 ignore_loglevel
> -rw-r--r--. 1 root root 4096 Jun 25 11:05 time
>
> So save yourselves the embarassment of submitting a patch to add it. ;)
>
>
>
>