[Bug 39398] New: Private Program: server win socket send data no more then 16K (approx.)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=39398

            Bug ID: 39398
           Summary: Private Program: server win socket send data no more
                    then 16K (approx.)
           Product: Wine
           Version: 1.7.52
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: winsock
          Assignee: wine-bugs at winehq.org
          Reporter: gerald at igarment.net
      Distribution: ---

I have tried wine 1.6.2 32 bit on CentOS 6 i686 and 1.7.50 32 bit in CentOS 6
x86_64 VM, both have the same problem.

I have a server written in Delphi using Asta. When the server run in wine,
sending large among of data (over 18K bytes, not exact) will have data lost. I
use tcpdump to captured the data sent, it seems the socket cannot send all the
data but with no socket error. The program seems to think that all data were
sent but wine win socket did not.

Obviously, the program is running very fine in Windows.

The following is a tcpdump for the tcp package in the server side.  The total
number of bytes need to send is around 110K.  Note that once reach to about
17458 (including tcp header, so the sent data is around 16K), it stop sending.


[root at wine-asta-17 ~]# tcpdump -i eth3 port 9000
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth3, link-type EN10MB (Ethernet), capture size 65535 bytes
11:24:16.851074 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [P.], seq 292754617:292754698, ack 97998410, win
8192, options [nop,nop,TS val 1335177067 ecr 7050913], length 81
11:24:16.851092 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], ack 81, win 273, options
[nop,nop,TS val 7058042 ecr 1335177067], length 0
11:24:16.890921 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [P.], seq 1:82, ack 81, win
273, options [nop,nop,TS val 7058081 ecr 1335177067], length 81
11:24:16.922996 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 82, win 8186, options [nop,nop,TS val
1335177138 ecr 7058081], length 0
11:24:16.975451 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [P.], seq 81:173, ack 82, win 8192, options
[nop,nop,TS val 1335177189 ecr 7058081], length 92
11:24:17.015000 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], ack 173, win 273, options
[nop,nop,TS val 7058206 ecr 1335177189], length 0
11:24:17.056036 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], seq 82:2978, ack 173, win
273, options [nop,nop,TS val 7058247 ecr 1335177189], length 2896
11:24:17.056045 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], seq 2978:5874, ack 173,
win 273, options [nop,nop,TS val 7058247 ecr 1335177189], length 2896
11:24:17.056047 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], seq 5874:8770, ack 173,
win 273, options [nop,nop,TS val 7058247 ecr 1335177189], length 2896
11:24:17.056049 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], seq 8770:11666, ack 173,
win 273, options [nop,nop,TS val 7058247 ecr 1335177189], length 2896
11:24:17.056051 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [.], seq 11666:14562, ack 173,
win 273, options [nop,nop,TS val 7058247 ecr 1335177189], length 2896
11:24:17.089440 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 2978, win 8011, options [nop,nop,TS val
1335177300 ecr 7058247], length 0
11:24:17.089460 IP 10.8.2.17.cslistener >
125-227-150-250.HINET-IP.hinet.net.61783: Flags [P.], seq 14562:17458, ack 173,
win 273, options [nop,nop,TS val 7058280 ecr 1335177300], length 2896
11:24:17.089468 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 2978, win 8192, options [nop,nop,TS val
1335177300 ecr 7058247], length 0
11:24:17.091030 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 5874, win 8011, options [nop,nop,TS val
1335177300 ecr 7058247], length 0
11:24:17.091035 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 8770, win 8011, options [nop,nop,TS val
1335177300 ecr 7058247], length 0
11:24:17.091037 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 13114, win 8192, options [nop,nop,TS val
1335177300 ecr 7058247], length 0
11:24:17.120679 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 16010, win 8101, options [nop,nop,TS val
1335177331 ecr 7058247], length 0
11:24:17.121874 IP 125-227-150-250.HINET-IP.hinet.net.61783 >
10.8.2.17.cslistener: Flags [.], ack 17458, win 8101, options [nop,nop,TS val
1335177332 ecr 7058280], length 0
^C
19 packets captured
19 packets received by filter
0 packets dropped by kernel

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