Re: 2.6.19.1 bug? tar: file changed as we read it

Re: 2.6.19.1 bug? tar: file changed as we read it

[Chuck Ebbert]

In-Reply-To: <4586408C.2050408@argo.co.il>

On Mon, 18 Dec 2006 09:17:32 +0200, Ava Kivity wrote:

> In 2.6.20-rc1, some of these files have other files with the same name 
> in the same directory (modulo case).  Perhaps this is confusing cifs.
> 
> Can you check where all of the files in your case share that property?
> 
> example:
> 
>     [avi@firebolt linux-2.6]$ find net -iname ipt_tos.c
>     net/ipv4/netfilter/ipt_TOS.c
>     net/ipv4/netfilter/ipt_tos.c
> 
>     [avi@firebolt linux-2.6]$ find net -iname ipt_ecn.c
>     net/ipv4/netfilter/ipt_ECN.c
>     net/ipv4/netfilter/ipt_ecn.c

Yes, that's it.

Using smbfs, both files have the same size and contents even though
they're really different:

$ ll ipt_dscp* ipt_DSCP*
-r--r-----  1 me me 2753 Jan 29  2004 ipt_dscp.c
-r--r-----  1 me me 2753 Jan 29  2004 ipt_DSCP.c
$ ll ipt_dscp.c ipt_DSCP.c
-r--r-----  1 me me 2753 Jan 29  2004 ipt_dscp.c
-r--r-----  1 me me 2753 Jan 29  2004 ipt_DSCP.c

With cifs, a directory search shows different sizes but opening
them by name gives identical contents:

$ ll ipt_dscp* ipt_DSCP*
-r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
-r-------- 1 me me 2753 Jan 29  2004 ipt_DSCP.c
$ ll ipt_dscp.c ipt_DSCP.c
-r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
-r-------- 1 me me 1581 Jan 28  2004 ipt_DSCP.c
$ diff ipt_dscp.c ipt_DSCP.c
$

So where is the bug? On the server?

-- 
MBTI: IXTP

Re: [linux-cifs-client] Re: 2.6.19.1 bug? tar: file changed as we read it

[simo]

On Mon, 2006-12-18 at 11:13 -0500, Chuck Ebbert wrote:

> With cifs, a directory search shows different sizes but opening
> them by name gives identical contents:
> 
> $ ll ipt_dscp* ipt_DSCP*
> -r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
> -r-------- 1 me me 2753 Jan 29  2004 ipt_DSCP.c
> $ ll ipt_dscp.c ipt_DSCP.c
> -r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
> -r-------- 1 me me 1581 Jan 28  2004 ipt_DSCP.c
> $ diff ipt_dscp.c ipt_DSCP.c
> $
> 
> So where is the bug? On the server?

What is the server?
Samba? Which vertsion?
Do you use unix extensions? Or "case sensitive = yes" ?

Simo.

-- 
Simo Sorce
Samba Team GPL Compliance Officer
email: idra@samba.org
http://samba.org

Re: [linux-cifs-client] Re: 2.6.19.1 bug? tar: file changed as we read it

[Chuck Ebbert]

In-Reply-To: <1166458956.30152.18.camel@localhost.localdomain>

On Mon, 18 Dec 2006 11:22:36 -0500, simo wrote:

> > With cifs, a directory search shows different sizes but opening
> > them by name gives identical contents:
> > 
> > $ ll ipt_dscp* ipt_DSCP*
> > -r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
> > -r-------- 1 me me 2753 Jan 29  2004 ipt_DSCP.c
> > $ ll ipt_dscp.c ipt_DSCP.c
> > -r-------- 1 me me 1581 Jan 28  2004 ipt_dscp.c
> > -r-------- 1 me me 1581 Jan 28  2004 ipt_DSCP.c
> > $ diff ipt_dscp.c ipt_DSCP.c
> > $
> > 
> > So where is the bug? On the server?
> 
> What is the server?
> Samba? Which vertsion?

Samba 2.2.3.

> Do you use unix extensions? Or "case sensitive = yes" ?

No UNIX extensions.  Not case sensitive.

SO this is kind of expected, but smbfs and cifs client for Linux have
subtly different behavior.

-- 
MBTI: IXTP