Comment 2 for bug 1060928

My english language is very bad, sorry.

Recompiled by configure whith --enable-debug quit the problem,
I have testesd the serial port with minicom, it works!!!, sorry

.- steps
    .- configure
    .- make
    .- make install
    .- ifup tap0
    .- ifconfig
    .- run script 1
    .- run script 2
    .- Inside the machines whith minicom works ok.

script 1
--------
#!/bin/bash

echo "Launch machine 1"

qemu-system-i386 -m 128 -display sdl -cpu pentium \
-k es \
-net nic,vlan=0,macaddr=52:54:00:12:02:04,model=pcnet \
-net vde,vlan=0,sock=/var/run/vde2/tap0.ctl \
-serial unix:/tmp/com1,server,nowait \
-vga cirrus \
-boot c -hda "/home/VirtualMachines/Discos/Hispa70_1.vmdk" \
-cdrom "/home/VirtualMachines/CDROM/hf-7.0a.iso"

script 2
--------
#!/bin/bash

echo "Launch machine 2"

qemu-system-i386 -display sdl -cpu pentium \
-net nic,vlan=0,macaddr=52:54:00:12:FF:04,model=pcnet \
-net vde,vlan=0,sock=/var/run/vde2/tap0.ctl \
-serial unix:/tmp/com1,nowait \
-vga cirrus \
-boot c -hda "/home/VirtualMachines/Discos/Hispa70_2.vmdk"

.- configure
./configure --enable-debug --target-list=i386-softmmu,x86_64-softmmu,\
i386-linux-user,x86_64-linux-user --enable-vde --disable-vnc --enable-sdl \
--audio-drv-list=oss,alsa,sdl,esd,pa \
--audio-card-list=ac97,es1370,sb16,cs4231a,adlib,gus,hda &>status

.- Result of configure

Install prefix /usr/local
BIOS directory /usr/local/share/qemu
binary directory /usr/local/bin
library directory /usr/local/lib
include directory /usr/local/include
config directory /usr/local/etc
Manual directory /usr/local/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path /home/javier/COMPILACIONES/qemu-1.2.0
C compiler gcc
Host C compiler gcc
Objective-C compiler gcc
CFLAGS -g
QEMU_CFLAGS -fPIE -DPIE -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits
LDFLAGS -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -pie -m64 -g
make make
install install
python python
smbd /usr/sbin/smbd
host CPU x86_64
host big endian no
target list i386-softmmu x86_64-softmmu i386-linux-user x86_64-linux-user
tcg debug enabled yes
gprof enabled no
sparse enabled no
strip binaries no
profiler no
static build no
-Werror enabled no
SDL support yes
curses support yes
curl support no
mingw32 support no
Audio drivers oss alsa sdl esd pa
Extra audio cards ac97 es1370 sb16 cs4231a adlib gus hda
Block whitelist
Mixer emulation no
VirtFS support no
VNC support no
xen support no
brlapi support no
bluez support no
Documentation yes
NPTL support yes
GUEST_BASE yes
PIE yes
vde support yes
Linux AIO support no
ATTR/XATTR support yes
Install blobs yes
KVM support yes
TCG interpreter no
fdt support no
preadv support yes
fdatasync yes
madvise yes
posix_madvise yes
uuid support no
libcap-ng support no
vhost-net support yes
Trace backend nop
Trace output file trace-<pid>
spice support no
rbd support no
xfsctl support no
nss used no
usb net redir no
OpenGL support yes
libiscsi support no
build guest agent yes
seccomp support no
coroutine backend ucontext

.- ifconfig
tap0 Link encap:Ethernet direcciónHW 1e:b9:3d:8d:cd:29
          Direc. inet:10.0.2.1 Difus.:10.0.2.255 Másc:255.255.255.0
          Dirección inet6: fe80::1cb9:3dff:fe8d:cd29/64 Alcance:Enlace
          ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
          Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0
          Paquetes TX:89 errores:0 perdidos:0 overruns:0 carrier:0
          colisiones:0 long.colaTX:500
          Bytes RX:0 (0.0 B) TX bytes:17478 (17.4 KB)