Change Notification

jra at jra at
Mon Jan 13 22:27:00 GMT 2003

On Mon, Jan 13, 2003 at 11:06:46PM +0100, Juergen Hasch wrote:
> Jeremy,
> I'm having problems with change notification in Samba 2.2.x under Linux 
> since you changed the signal
> handling stuff some time ago.
> An application I'm using always complains about missing change 
> notification, although it used to work.
> I always failed to find out what's wrong, but now I know :-)
> What is happening is that Samba receives a change notification signal 
> from the Linux kernel and sometimes
> simply does not process it, which means that no further signals will be 
> send by the Kernel (DN_MULTISHOT isn't set)
> for the same event.
> Processing of the received signal happens for file rename and delete in 
> but not for copying.
> In reply.c/reply_write_and_X() I added  a call to
>     process_pending_change_notify_queue((time_t)0);
>  and now change notification works again for my testcase here.
> I'm sure you now a better place where  
> process_pending_change_notify_queue() should go to catch
> file copy events :-)

Can you give me more details please about where smbd is missing
the signal ? smbd should not be able to miss these signals, as
all they do is set a flag that is then processed inline in the
main loop.

Please give me more details asap.



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