From 72e0f1b67bdd3f89cf51e89a3c17dd4a7cb575f1 Mon Sep 17 00:00:00 2001
From: Aleksandr Nogikh <nogikh@google.com>
Date: Tue, 27 Jan 2026 12:31:49 +0000
Subject: all: add a DumpMemory feature

On Linux, verify that makedumpfile and the second kernel are present,
then set up a kernel to be used on panic.
---
 pkg/rpcserver/rpcserver.go      |  4 ++++
 pkg/rpcserver/rpcserver_test.go | 14 ++++++++++++++
 2 files changed, 18 insertions(+)

(limited to 'pkg/rpcserver')

diff --git a/pkg/rpcserver/rpcserver.go b/pkg/rpcserver/rpcserver.go
index 04c5d877f..385c0350d 100644
--- a/pkg/rpcserver/rpcserver.go
+++ b/pkg/rpcserver/rpcserver.go
@@ -162,6 +162,9 @@ func New(cfg *RemoteConfig) (Server, error) {
 	if !cfg.Experimental.RemoteCover {
 		features &= ^flatrpc.FeatureExtraCoverage
 	}
+	if !cfg.MemoryDump {
+		features &= ^flatrpc.FeatureMemoryDump
+	}
 	return newImpl(&Config{
 		Config: vminfo.Config{
 			Target:     cfg.Target,
@@ -170,6 +173,7 @@ func New(cfg *RemoteConfig) (Server, error) {
 			Syscalls:   cfg.Syscalls,
 			Debug:      cfg.Debug,
 			Cover:      cfg.Cover,
+			MemoryDump: cfg.MemoryDump,
 			Sandbox:    sandbox,
 			SandboxArg: cfg.SandboxArg,
 		},
diff --git a/pkg/rpcserver/rpcserver_test.go b/pkg/rpcserver/rpcserver_test.go
index 429b275ac..86dddcf76 100644
--- a/pkg/rpcserver/rpcserver_test.go
+++ b/pkg/rpcserver/rpcserver_test.go
@@ -70,6 +70,20 @@ func TestNew(t *testing.T) {
 				}
 				return &cfg
 			},
+			expectedServCheck: func(srv Server) {
+				s := srv.(*server)
+				assert.Equal(t, s.cfg.Config.Features,
+					flatrpc.AllFeatures&(^flatrpc.FeatureExtraCoverage)&(^flatrpc.FeatureMemoryDump))
+				assert.Nil(t, s.serv)
+			},
+		},
+		{
+			name: "memory dump enabled",
+			modifyCfg: func() *mgrconfig.Config {
+				cfg := defaultCfg
+				cfg.MemoryDump = true
+				return &cfg
+			},
 			expectedServCheck: func(srv Server) {
 				s := srv.(*server)
 				assert.Equal(t, s.cfg.Config.Features, flatrpc.AllFeatures&(^flatrpc.FeatureExtraCoverage))
-- 
cgit mrf-deployment