This page provides assistance for creating dump files.
Steps to Report a Problem
If you encounter any crashes, a VRay.dmp file might be very useful for our Support Team as it contains information that helps troubleshooting and fixing the issue.
Below you can find detailed steps on where to find the needed file or how to generate it.
Collecting the VRay.dmp file when Autodesk Error Report Window is Available
How to get the minidump file?
When Maya crashes, it usually displays the Maya Error Report window and a VRay.dmp file is automatically generated. To find its location follow the steps below:
1. Do not close the error report window during this whole process.
2. Click on the View Report Details option.
3. Hover your mouse over VRay.dmp to see its location
Collecting the VRay.dmp file if Autodesk Error Report Windows is not Available
Sometimes Maya freezes without showing the Autodesk Error Report Window or V-Ray exception occurs:
- Open the Windows Task Manager from the Start Menu.
- Right-click on the Maya application in the Processes tab to select the Create dump file option, while the Maya app displays the notification that unexpected error has occurred.
3. The crash dump file is created in the Temp folder.
The crash dump files are stored either in the /Library/Logs/DiagnosticReports (system-wide) or ~/Library/Logs/DiagnosticsReports (user-wide) directories, depending on the type of the process that has led to the crash.
Another crash dump file named core.<pid> (where <pid> stands for the PID of the crashed process) must be created in the /cores directory. In order to create this second crash dump file, activate the full core dumps via the ulimit -c unlimited command which makes the core dump files size unlimited. Also make sure to have write permissions for the /cores directory.
In case the /cores directory is hidden in Finder, you can show the hidden files via the defaults write com.apple.finder AppleShowAllFiles TRUE command.
You should make the size of the core dump files unlimited via the ulimit -c unlimited command. If the core dump files are not disabled in any other way, this should be sufficient to create a core.<pid> dump file in the current working directory or in the /var/lib/systemd/coredump directory, if using systemd. Here, <pid> stands for the PID of the crashed process.
In case no core dump file has been created, the following configuration files must be checked based on the Linux distribution used:
(non-systemd GNU Linux distributions - CentOS 6.x and others): Make sure that there is either no /etc/sysctl.d/50-coredump.conf file or it has a valid configuration value for the kernel.core_pattern. If you are uncertain, just remove the line from the file. This action may require root access.
(systemd based GNU Linux distributions - CentOS 7, Fedora and others): Make sure that there is no limit for the storage in /etc/systemd/coredump.conf.d/custom.conf by confirming that the [Coredump] Storage=none configuration lines are not present.
Collecting the VRay.dmp dump file
If you are rendering with V-Ray GPU in Maya or V-Ray Standalone and a crash occurs, a VRay.dmp file should be generated automatically. The VRay.dmp file is located by default in the Windows Temp folder:
C:\Users\%username%\AppData\Local\Temp
In case you are rendering a .vrscene file using V-Ray Standalone and the app crashes, just the VRay.dmp file is required.