[Samba] BUG: Standard Time v. DST calculated wrong by Samba Server

Linda W
Sun, 31 Jul 2005 20:21:31 -0000

FYI, the same bug apears if one mounts the file system
using "cifs":

-rwxr-----  1 user 2532415 2000-04-02 00:34:50.000000000 -0800 fo1.mp3*
-rwxr-----  1 user 3876671 2000-03-12 21:33:20.000000000 -0800 fo2.mp3*

Linda W wrote:

> Summary:
> There appears to be a bug in the "time range" Samba is using on
> dates where time is scheduled to "Spring Forward" from Standard
> to Daylight Savings time.  Might want to review the code for
> "Falling back", as well...
>
> Details:
>
> This started out with my thinking it was an rsync problem, but
> it appears to be something to do with how samba is exporting the
> file time (!? or Windows is reading 1 file).
>
> I have 2 files in a windows directory, /tmp/files: fo1.mp3, fo2.mp3.
> I rsynced them to a directory on a linux box running SuSE 9.1
> with samba-3.0.9-2.6.
>
> On the linux/samba server, I see times:
> target> ll --full-time
> total 6264
> -rwxr-----  1 user 2532415 2000-04-02 01:34:50.000000000 -0800 fo1.mp3*
> -rwxr-----  1 user 3876671 2000-03-12 22:33:20.000000000 -0800 fo2.mp3*
>
> (which are the same times as on the Windows source dir:)
> /tmp/files> ll --full-time
> total 6272
> -rw-r-----  1 user 2532415 2000-04-02 01:34:50.000000000 -0800 fo1.mp3
> -rw-r-----  1 user 3876671 2000-03-12 21:33:20.000000000 -0800 fo2.mp3
>
> But, the Win XP's view of the remote files differs on 1 file:
> /tmp/files> ll --full-time /k/target/
> total 7168
> -rw-r-----  1 user 2532415 2000-04-02 00:34:50.000000000 -0800 fo1.mp3
> ---------------------------------------^
> -rw-r-----  1 user 3876671 2000-03-12 21:33:20.000000000 -0800 fo2.mp3
>
> This is 1 file out of 387 that has this problem.
>
> The same problem occurs when I use smbmount on the server to mount the
> exported samba share (but mounted by root):
>
> -rwxr-xr-x  1 root 2532415 2000-04-02 00:34:50.000000000 -0800 fo1.mp3
> ---------------------------------------^
> -rwxr-xr-x  1 root 3876671 2000-03-12 21:33:20.000000000 -0800 fo2.mp3
> ---------
> Note -- same time as seen on the Windows box, but this time it is seen
> through the linux based "smbmount"ed view.
>
> It seems to be a bug related to the the time changing on that date
> from Standard to Daylight Saving Time.  To be more particular, on that
> date, times in the range >=2:00AM and <3:00AM would not exist.  It
> would appear the code for time checking is using the wrong time range
> on that date.
>
> Linda
>
>