syslog basic querry

Wolfgang Denk wd at
Wed Dec 28 00:11:30 UTC 2005

In message <20051227174704.80990.qmail at> you wrote:
> This would happen on any unix machine.  The tail program
>  never reopens the file being monitored.  So when syslogd

It depends. See the "--max-unchanged-stats" option with GNU tar which
handles exaclty cases like this one.

>   If you can log to another machine that would be best. 
>  Otherwise you have to write to the flash.  You could write a

... or to some other persistent memory. If you  use  U-Boot  as  boot
loader,  you  can  make  the  syslog buffer persistent, i. e. it will
survive crashes and reboots. Also, you can use ome RAM for  a  pramfs
file systeme which can survice a reboot as well.

Not to mention that there are other hardware  solutions  like  static
RAM, FRAM, etc.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at
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