Re: cleanerd

[Ryusuke Konishi <ryusuke-sG5X7nlA6pw@public.gmane.org>]

Hi,

On Thu, 06 Nov 2008 10:45:06 +1300, John Huttley wrote:
> Hi,
> my cleanerd stopped again, though I don't see anything in the logs
> 
> Is there a way of getting better logging for debugging purposes?
> 
> --John

Sorry for inconvenience.

To get better cleanerd logs, change log_priority level specified in
/etc/nilfs_cleanerd.conf as follows:

log_priority  info

       |
       v

log_priority  debug

This will make the cleanerd write debug information in syslog.

Note that a HUP signal must be sent to the cleanerd or doing
umount/mount the nilfs partition is required to reflect the change.


Then, if nilfs2 seems to hang during GC, please get a stack dump by
sending the following system request from an active terminal or
console.

 # echo t > /proc/sysrq-trigger

This will dump stack information of every kernel thread.  The stack
information that contains `nilfs' keywords would give the hint about
which function causes the hang problem.

With regards,
Ryusuke Konishi