Changes between Version 12 and Version 13 of Core_dump

Timestamp:

Jul 9, 2009 7:49:37 AM (15 years ago)

Author:

Frank Mehnert

Comment:

--

Core_dump

@@ -23 +23 @@
 When !VirtualBox crashes, a file core.<pid> is created in the current directory. Be aware that core dumps can be very huge. Please compress the file before submitting it to a bug report. Or better don't attach the file to a report. Note that this core dump can contain a memory dump of your guest which can include sensitive information. Send it to frank _dot_ mehnert at sun _dot_ com if the compressed file is smaller than 5MB. Contact me directly otherwise.
 
-= Forcing !VirtualBox to terminate with core dump =
+= Forcing !VirtualBox to terminate with a core dump =
 
 Sometimes it is required to force a !VirtualBox process to terminate, for example, a VM hangs for some unknown reason. This can be done as follows:
@@ -36 +36 @@
 Passing the signal number 4 (`SIGILL`) is essential! The same applies to the alternative frontends `VBoxHeadless` and `VBoxSDL`.
 
-= How to create dump file on Mac =
-After preparations steps like it described for Linux, you can find your core files in /cores folder.
+= How to create dumps on Mac OS X =
+To create a core dump on Mac OS X, start !VirtualBox from a command line:
+{{{
+$ ulimit -c unlimited
+$ VirtualBox
+}}}
+or better start the VM directly:
+{{{
+$ ulimit -c unlimited
+$ /usr/lib/virtualbox/VirtualBox -startvm VM_NAME
+}}}
+Ensure that '''no''' startup script (`~/.bashrc`, `~/.bash_profile`, `~/.profile`) contains an instruction like `ulimit -c 0` as the limit cannot be increased once it was set to zero.
 
-= How to create dump file on Windows host =
+The core files can be found in the /cores folder.
+
+= How to minudumps on Windows =
 [http://support.microsoft.com/kb/315263 Please visit Microsoft site for more details]