From: Andrew Morton <akpm@linux-foundation.org>
To: netdev@vger.kernel.org, linux-cifs@vger.kernel.org
Cc: bugzilla-daemon@bugzilla.kernel.org,
bugme-daemon@bugzilla.kernel.org, lkml@tlinx.org
Subject: Re: [Bugme-new] [Bug 33102] New: File's copied from client->linux server only copy 1st 64K data; rest is lost
Date: Mon, 11 Apr 2011 15:24:31 -0700 [thread overview]
Message-ID: <20110411152431.a5997005.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-33102-10286@https.bugzilla.kernel.org/>
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Mon, 11 Apr 2011 22:12:41 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=33102
>
> Summary: File's copied from client->linux server only copy 1st
> 64K data;rest is lost
> Product: Networking
> Version: 2.5
> Kernel Version: 2.6.38.2
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: blocking
> Priority: P1
> Component: IPV4
> AssignedTo: shemminger@linux-foundation.org
> ReportedBy: lkml@tlinx.org
> Regression: Yes
Seems to be a 2.6.37->2.6.38 regression.
>
> Created an attachment (id=54112)
> --> (https://bugzilla.kernel.org/attachment.cgi?id=54112)
> config file
>
> I've run into a problem copying a 3.6M file from a Win7 client to
> the linux server via cifs.
>
>
> Under 2.6.38.2, it only copies the first 64K (exactly) and the
> client gets a write error.
>
> Using wireshark, in the success case, after the client sends the first
> 64K, the server response with 4 acks each advertising a Window
> size of ~48K, followed by an SMB packet acknowledging the first 64K, w/info:
> "WRITE AndX Request, 65536 bytes".
>
> In the fail case, the server responds with 4 acks, but in each of the
> 4 ACKS, it's advertising strange window sizes of 881, 1161, 1441 1721
> and then responds with a faulty SMB packet w/info:
> "[TCP Retransmission] Trans2 Response<unknown>"
> Under the Trans2 section it says:
>
> Subcommand: <Unknown> since request packet wasn't seen.
>
>
> ----
>
> I originally upgraded from 2.6.35.7 -> 2.6.38.2 and encountered this
> prob, so successively tried the 26.35.7 config w/2.6.36, 37, 38 and finally
> 38.1 -- they all work.
>
> The same config on 2.6.38.2 fails as described above.
>
>
> Config attached.
>
next parent reply other threads:[~2011-04-11 22:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-33102-10286@https.bugzilla.kernel.org/>
2011-04-11 22:24 ` Andrew Morton [this message]
[not found] ` <20110411152431.a5997005.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-04-11 22:41 ` [Bugme-new] [Bug 33102] New: File's copied from client->linux server only copy 1st 64K data; rest is lost Linda Walsh
[not found] ` <4DA3839B.1050102-gT3AUAsYRbTYtjvyW6yDsg@public.gmane.org>
2011-04-12 0:06 ` Steve French
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