Possible bug in qemu-0.12.4 on Linux, and I think applicable to qemu-0.12.5
The VNC reverse connection option appears to be parsed correctly,
however, the handling of the VncDisplay structure leads to a segfault:
Command line:
./i386-softmmu/qemu -vnc <ipaddress>:9990,reverse -usb -monitor stdio
~/vmimg/linux-0.2.img
I took the liberty of hiding the ip address to protect the innocent ;-)
Error:
Switching to Thread 0x7fd99ceb06e0 (LWP 15174)]
0x00000000004fa5df in vnc_refresh_server_surface (vd=0xd40e50) at vnc.c:2262
2262 guest_row = vd->guest.ds->data;
Backtrace:
(gdb) bt
#0 0x00000000004fa5df in vnc_refresh_server_surface (vd=0xd40e50) at vnc.c:2262
#1 0x00000000004fa872 in vnc_refresh (opaque=0xd40e50) at vnc.c:2303
#2 0x00000000004fa9aa in vnc_init_timer (vd=0xd40e50) at vnc.c:2334
#3 0x00000000004fab2d in vnc_connect (vd=0xd40e50, csock=0xc) at vnc.c:2377
#4 0x00000000004fb226 in vnc_display_open (ds=0xc97b20,
display=0x7fffffffd871 "<ipaddress>:9990,reverse") at vnc.c:2674
#5 0x000000000040fd1d in main (argc=0x9, argv=0x7fffffffb9c8,
envp=0x7fffffffba18) at /home/d/qemu/vl.c:6127
(gdb) p *vd
$2 = {
timer = 0xcabbc0,
timer_interval = 0x1e,
lsock = 0xffffffff,
ds = 0xc97b20,
clients = 0xd82a10,
kbd_layout = 0xcbf010,
guest = {
dirty = {{0x0, 0x0, 0x0, 0x0} <repeats 2048 times>},
ds = 0x0
},
server = 0x0,
display = 0xcb5f90 "<ipaddress>:9990,reverse",
password = 0x0,
auth = 0x1
}
I'm going through the code to make sure I'm using the appropriate
option for a reverse VNC, but assuming I got that right I will then
look to see if there's a patch I might submit to fix this. However, if
someone else has already seen it...
Cheers,
David
