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Linux: Automatically increase vm.max_map_count if it's too low (#4702)

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* memory: Check results of pinvoke calls

* Increase vm.max_map_count when running Ryujinx

* Add SupportedOSPlatform attribute for WindowsApiException

* Revert increasing vm.max_map_count via script

* Add LinuxHelper to detect and increase vm.max_map_count

With GUI dialogs, this should be a bit more user-friendly.

* Supply arguments as a list to RunPkExec

* Add error logging in case RunPkExec() fails

* Prevent Gtk from crashing
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TSRBerry 2023-05-30 01:48:37 +02:00 • committed by GitHub
parent a73a5d7e85
commit 35d91a0e58
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14 changed files with 252 additions and 17 deletions
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65
src/Ryujinx/Program.cs
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@ -264,6 +264,71 @@ namespace Ryujinx
MainWindow mainWindow = new MainWindow();
mainWindow.Show();
if (OperatingSystem.IsLinux())
{
int currentVmMaxMapCount = LinuxHelper.VmMaxMapCount;
if (LinuxHelper.VmMaxMapCount < LinuxHelper.RecommendedVmMaxMapCount)
{
Logger.Warning?.Print(LogClass.Application, $"The value of vm.max_map_count is lower than {LinuxHelper.RecommendedVmMaxMapCount}. ({currentVmMaxMapCount})");
if (LinuxHelper.PkExecPath is not null)
{
var buttonTexts = new Dictionary<int, string>()
{
{ 0, "Yes, until the next restart" },
{ 1, "Yes, permanently" },
{ 2, "No" }
};
ResponseType response = GtkDialog.CreateCustomDialog(
"Ryujinx - Low limit for memory mappings detected",
$"Would you like to increase the value of vm.max_map_count to {LinuxHelper.RecommendedVmMaxMapCount}?",
"Some games might try to create more memory mappings than currently allowed. " +
"Ryujinx will crash as soon as this limit gets exceeded.",
buttonTexts,
MessageType.Question);
int rc;
switch ((int)response)
{
case 0:
rc = LinuxHelper.RunPkExec($"echo {LinuxHelper.RecommendedVmMaxMapCount} > {LinuxHelper.VmMaxMapCountPath}");
if (rc == 0)
{
Logger.Info?.Print(LogClass.Application, $"vm.max_map_count set to {LinuxHelper.VmMaxMapCount} until the next restart.");
}
else
{
Logger.Error?.Print(LogClass.Application, $"Unable to change vm.max_map_count. Process exited with code: {rc}");
}
break;
case 1:
rc = LinuxHelper.RunPkExec($"echo \"vm.max_map_count = {LinuxHelper.RecommendedVmMaxMapCount}\" > {LinuxHelper.SysCtlConfigPath} && sysctl -p {LinuxHelper.SysCtlConfigPath}");
if (rc == 0)
{
Logger.Info?.Print(LogClass.Application, $"vm.max_map_count set to {LinuxHelper.VmMaxMapCount}. Written to config: {LinuxHelper.SysCtlConfigPath}");
}
else
{
Logger.Error?.Print(LogClass.Application, $"Unable to write new value for vm.max_map_count to config. Process exited with code: {rc}");
}
break;
}
}
else
{
GtkDialog.CreateWarningDialog(
"Max amount of memory mappings is lower than recommended.",
$"The current value of vm.max_map_count ({currentVmMaxMapCount}) is lower than {LinuxHelper.RecommendedVmMaxMapCount}." +
"Some games might try to create more memory mappings than currently allowed. " +
"Ryujinx will crash as soon as this limit gets exceeded.\n\n" +
"You might want to either manually increase the limit or install pkexec, which allows Ryujinx to assist with that.");
}
}
}
if (CommandLineState.LaunchPathArg != null)
{
mainWindow.RunApplication(CommandLineState.LaunchPathArg, CommandLineState.StartFullscreenArg);