linux-kernel - Re: mounting cifs filesystems not possible

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 23 Jul 2009 08:24:58 +0200
From:	Gerhard Hintermayer <gerhard.hintermayer@...il.com>
To:	Steve French <smfrench@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: mounting cifs filesystems not possible

See my original post to LKML at http://lkml.org/lkml/2009/7/15/217.
You can see kernel version, and dmesg output (including cifsFYI set to
7) there.
I did file a bug report to gentoo bug list and lkml. Shall I also do
so for bugzilla.samba.org ? I think it's more kernel related.

The DebugData of the share I'm trying to mount (fortunaltely I got a
successful mount after several tries):

brklev2b ~ # cat /proc/fs/cifs/DebugData
Display Internal CIFS Data Structures for Debugging
---------------------------------------------------
CIFS Version 1.57
Active VFS Requests: 0
Servers:
1) Name: 10.5.12.105  Domain: EUROPE Uses: 1 OS: Windows Server 2003
R2 3790 Service Pack 1
        NOS: Windows Server 2003 R2 5.2 Capability: 0x1f3fd
        SMB session status: 1   TCP status: 1
        Local Users To Server: 1 SecMode: 0x3 Req On Wire: 0
        Shares:
        1) \\BRKVN05\AtlasPM Mounts: 1 Type: NTFS DevInfo: 0x20
Attributes: 0x700ff
PathComponentMax: 255 Status: 0x1 type: DISK    DISCONNECTED

        MIDs:


Gerhard

On Thu, Jul 23, 2009 at 8:10 AM, Steve French<smfrench@...il.com> wrote:
> On Thu, Jul 23, 2009 at 12:26 AM, Gerhard
> Hintermayer<gerhard.hintermayer@...il.com> wrote:
>> Well this is indeed strange. First I thought the problem was solved
>> because I had an old version of mount installed, but the successful
>> mount with latest version of mount.cifs was only by chance. I get 1
>> successful mount out of ~ 30 tries (each time unloading the cifs
>> module). And looking at the source in export.c I discovered, that
>> reexporting cifs- mount points is still not supported :-( : This seems
>> to be very tricky. If you need more information to track the tainting
>> problem down, pls give me a note.
>
> What is kernel version?
> What is symptom?
>
> Have you opened a bug against the project bugzilla (bugzilla.samba.org)?
>
> The dmesg (Linux message log) will show certain serious errors, but
> enabling additional cifs debugging flags can increase the debug
> output. Setting /proc/fs/cifs/DebugData to 1 will cause additional
> cifs informational messages to be logged, and setting
> it to 3 (“echo 3 > /proc/fs/cifs/cifsFYI”) will also log return codes
> from most cifs entry points to dmesg.
> One of the most powerful tools for analyzing networking or network
> filesystem problems is “Wireshark."
> http://wiki.samba.org/index.php/Capture_Packets shows instructions how
> to do wireshark captures.
>
> --
> Thanks,
>
> Steve
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/