Date: Mon, 14 May 2012 19:47:22 GMT From: Gary Palmer <gpalmer@FreeBSD.org> To: freebsd-gnats-submit@FreeBSD.org Subject: ports/167891: emulators/virtualbox-ose: bus error with more than one headless VM Message-ID: <201205141947.q4EJlMEg059931@red.freebsd.org> Resent-Message-ID: <201205141950.q4EJo2Dw048402@freefall.freebsd.org>
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>Number: 167891
>Category: ports
>Synopsis: emulators/virtualbox-ose: bus error with more than one headless VM
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-ports-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon May 14 19:50:01 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Gary Palmer
>Release: 9.0-RELEASE
>Organization:
>Environment:
FreeBSD xxx 9.0-RELEASE FreeBSD 9.0-RELEASE #5: Tue May 1 00:40:42 BST 2012 root@xxx:/usr/obj/usr/src/sys/MICRO amd64
>Description:
If the default VNC port is already used when you start a second VM with VBoxHeadless -n -m <port number> then when you connect with a VNC client the VBoxHeadless bus errors. There was a warning about the IPv6 port already being in use. Patching virualbox to set the TCP port number for IPv4 and IPv6 appears to have resolved the issue
>How-To-Repeat:
have something listening on TCP 5900 on IPv6
start a VM via VBoxHeadless -n -m 5901
connect vncviewer to port 5901
>Fix:
see attached patch
libvncserver has an autoprobe mode which should detect the first free VNC server port. it may be worth turning that feature on if -m isn't specified.
Patch attached with submission follows:
--- src/VBox/Frontends/VBoxHeadless/FramebufferVNC.cpp.orig 2012-05-12 19:50:26.807639833 +0100
+++ src/VBox/Frontends/VBoxHeadless/FramebufferVNC.cpp 2012-05-12 19:50:38.568636058 +0100
@@ -89,7 +89,10 @@
vncServer = rfbGetScreen(0, NULL, mWidth, mHeight, 8, 3, 1);
vncServer->screenData = (void*)this;
if (mVncPort)
+ {
vncServer->port = mVncPort;
+ vncServer->ipv6port = mVncPort;
+ }
char *pszDesktopName;
rc = RTStrAPrintf(&pszDesktopName, "%s - VirtualBox", pszName);
if (rc >= 0)
>Release-Note:
>Audit-Trail:
>Unformatted:
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