GDB hangs on startup trying to connect to debuginfod.ubuntu.com, can't seem to be disabled

[ascholerChemeketa]

Environment

• OS and version: ubuntu 25.04
• VS Code: 1.120.0
• C/C++ extension: 1.32.2
• GDB / LLDB version: GNU gdb (Ubuntu 16.2-8ubuntu1) 16.2

Bug Summary and Steps to Reproduce

Bug Summary:

gdb hangs for multiple minutes on startup. It looks like due to debuginfod.ubuntu.com being down. Eventually the attempt to connect times out and gdb starts. But it takes multiple minutes.

I can't figure out a way to bypass loading those symbols in 1.32.

Versions of vscode-cpptools 1.29 and below start up fine.

Related closed issue on vscode here:
microsoft/vscode#316682 (comment)

Steps to reproduce:

1. Make a codespace based on this github repo: https://github.com/ChemeketaCS/TemplateBasicProject
2. Attempt to debug project
3. Note that debugger hangs

I've tried:
set debuginfod enabled off in /etc/gdb/gdbinit
And

            "environment": [
                {
                    "name": "DEBUGINFOD_URLS",
                    "value": ""
                }
            ],

In the launch.json

The Debug Console shows:
GDB startup shows: =cmd-param-changed,param="debuginfod enabled",value="off"
on startup but still hangs.

Rolling back to vscode-cpptools 1.29 allows the debugger to start

Debugger Configurations

Available in the github repo.

tasks.json:

{
    "tasks": [
        {
            "label": "make program.exe",
            "type": "shell",
            "command": "make program.exe",
            "windows": {
                "command": "mingw32-make program.exe"
            },
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": [
                "$gcc",
                {
                    "owner": "cpp",
                    "fileLocation": [
                        "absolute"
                    ],
                    "pattern": {
                        "regexp": "^(.*):(\\d*).*:\\s+(undefined reference to.*)$",
                        "file": 1,
                        "line": 2,
                        "message": 3
                    }
                },
            ],
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "presentation": {
                "revealProblems":"onProblem"
            },
        },
    ],
    "version": "2.0.0"
}

launch.json:

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Run Program",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/program.exe",
            "cwd": "${workspaceFolder}",
            "preLaunchTask": "make program.exe",
            "symbolLoadInfo": {
                "loadAll": false,
                "exceptionList": ""
            },
            "environment": [
                {
                    "name": "DEBUGINFOD_URLS",
                    "value": ""
                }
            ],
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                },
                {
                    "description": "Set Disassembly Flavor to Intel",
                    "text": "-gdb-set disassembly-flavor intel",
                    "ignoreFailures": true
                },
                {
                    "description": "Debug fix",
                    "text": "-gdb-set debuginfod enabled off",
                    "ignoreFailures": true
                }
            ],
            "MIMode": "gdb",
        },
        {
            "name": "Run Program (Mac)",
            "type": "lldb",
            "request": "launch",
            "program": "${workspaceFolder}/program.exe",
            "cwd": "${workspaceFolder}",
            "preLaunchTask": "make program.exe",
        },
    ]
}

Debugger Logs

--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (84) LaunchOptions{\"name\":\"Run Program\",\"type\":\"cppdbg\",\"request\":\"launch\",\"program\":\"/workspaces/TemplateBasicProject/program.exe\",\"cwd\":\"/workspaces/TemplateBasicProject\",\"preLaunchTask\":\"make program.exe\",\"logging\":{\"engineLogging\":true,\"trace\":true,\"traceResponse\":true},\"setupCommands\":[{\"description\":\"Enable pretty-printing for gdb\",\"text\":\"-enable-pretty-printing\",\"ignoreFailures\":true},{\"description\":\"Set Disassembly Flavor to Intel\",\"text\":\"-gdb-set disassembly-flavor intel\",\"ignoreFailures\":true}],\"MIMode\":\"gdb\",\"__configurationTarget\":6,\"configSource\":\"workspaceFolder\",\"debugType\":\"debug\",\"__sessionId\":\"1cc91bf4-efe1-4f29-b9a0-32f469328cfe\"}\n"},"seq":2}
1: (84) LaunchOptions{"name":"Run Program","type":"cppdbg","request":"launch","program":"/workspaces/TemplateBasicProject/program.exe","cwd":"/workspaces/TemplateBasicProject","preLaunchTask":"make program.exe","logging":{"engineLogging":true,"trace":true,"traceResponse":true},"setupCommands":[{"description":"Enable pretty-printing for gdb","text":"-enable-pretty-printing","ignoreFailures":true},{"description":"Set Disassembly Flavor to Intel","text":"-gdb-set disassembly-flavor intel","ignoreFailures":true}],"MIMode":"gdb","__configurationTarget":6,"configSource":"workspaceFolder","debugType":"debug","__sessionId":"1cc91bf4-efe1-4f29-b9a0-32f469328cfe"}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (126) DbgCmd:echo $$ > /tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv ; cd \"/workspaces/TemplateBasicProject\" ; DbgTerm=`tty` ; set -o monitor ; trap 'rm \"/tmp/Microsoft-MIEngine-In-xm51yzjm.h5j\" \"/tmp/Microsoft-MIEngine-Out-mnktdmki.q4c\" \"/tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv\" \"/tmp/Microsoft-MIEngine-Cmd-lwesujc5.vzf\"' EXIT ; \"/usr/bin/gdb\" --interpreter=mi --tty=$DbgTerm < \"/tmp/Microsoft-MIEngine-In-xm51yzjm.h5j\" > \"/tmp/Microsoft-MIEngine-Out-mnktdmki.q4c\" & clear; pid=$! ; echo $pid > \"/tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv\" ; wait $pid; \n"},"seq":4}
1: (126) DbgCmd:echo $$ > /tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv ; cd "/workspaces/TemplateBasicProject" ; DbgTerm=`tty` ; set -o monitor ; trap 'rm "/tmp/Microsoft-MIEngine-In-xm51yzjm.h5j" "/tmp/Microsoft-MIEngine-Out-mnktdmki.q4c" "/tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv" "/tmp/Microsoft-MIEngine-Cmd-lwesujc5.vzf"' EXIT ; "/usr/bin/gdb" --interpreter=mi --tty=$DbgTerm < "/tmp/Microsoft-MIEngine-In-xm51yzjm.h5j" > "/tmp/Microsoft-MIEngine-Out-mnktdmki.q4c" & clear; pid=$! ; echo $pid > "/tmp/Microsoft-MIEngine-Pid-eauhtjuo.uwv" ; wait $pid; 
--> C (runInTerminal-6): {"type":"request","command":"runInTerminal","arguments":{"kind":"integrated","title":"cppdbg: program.exe","cwd":"","args":["/bin/sh","/tmp/Microsoft-MIEngine-Cmd-lwesujc5.vzf"],"env":{}},"seq":6}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (142) Wait for connection completion.\n"},"seq":8}
1: (142) Wait for connection completion.
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (243) ->=thread-group-added,id=\"i1\"\n"},"seq":10}
1: (243) ->=thread-group-added,id="i1"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (248) ->~\"GNU gdb (Ubuntu 16.2-8ubuntu1) 16.2\\n\"\n"},"seq":12}
1: (248) ->~"GNU gdb (Ubuntu 16.2-8ubuntu1) 16.2\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (248) ->~\"Copyright (C) 2024 Free Software Foundation, Inc.\\n\"\n"},"seq":14}
1: (248) ->~"Copyright (C) 2024 Free Software Foundation, Inc.\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (249) ->~\"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\\nThis is free software: you are free to change and redistribute it.\\nThere is NO WARRANTY, to the extent permitted by law.\"\n"},"seq":16}
1: (249) ->~"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law."
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (249) ->~\"\\nType \\\"\"\n"},"seq":18}
1: (249) ->~"\nType \""
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (249) ->~\"show copying\\\" and \\\"show warranty\\\" for details.\\n\"\n"},"seq":20}
1: (249) ->~"show copying\" and \"show warranty\" for details.\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (249) ->~\"This GDB was configured as \\\"x86_64-linux-gnu\\\".\\n\"\n"},"seq":22}
1: (249) ->~"This GDB was configured as \"x86_64-linux-gnu\".\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (250) ->~\"Type \\\"show configuration\\\" for configuration details.\\n\"\n"},"seq":24}
1: (250) ->~"Type \"show configuration\" for configuration details.\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (250) ->~\"For bug reporting instructions, please see:\\n\"\n"},"seq":26}
1: (250) ->~"For bug reporting instructions, please see:\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (250) ->~\"<https://www.gnu.org/software/gdb/bugs/>.\\n\"\n"},"seq":28}
1: (250) ->~"<https://www.gnu.org/software/gdb/bugs/>.\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (252) ->~\"Find the GDB manual and other documentation resources online at:\\n    <\"\n"},"seq":30}
1: (252) ->~"Find the GDB manual and other documentation resources online at:\n    <"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (252) ->~\"http://www.gnu.org/software/gdb/documentation/>.\\n\\n\"\n"},"seq":32}
1: (252) ->~"http://www.gnu.org/software/gdb/documentation/>.\n\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (252) ->~\"For help, type \\\"help\\\".\\n\"\n"},"seq":34}
1: (252) ->~"For help, type \"help\".\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (252) ->~\"Type \\\"apropos word\\\" to search for commands related to \\\"word\\\".\\n\"\n"},"seq":36}
1: (252) ->~"Type \"apropos word\" to search for commands related to \"word\".\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (252) ->(gdb)\n"},"seq":38}
1: (252) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (257) <-1001-gdb-set mi-async on\n"},"seq":40}
1: (257) <-1001-gdb-set mi-async on
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (258) ->1001^done\n"},"seq":42}
1: (258) ->1001^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (258) ->(gdb)\n"},"seq":44}
1: (258) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (261) 1001: elapsed time 5\n"},"seq":46}
1: (261) 1001: elapsed time 5
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (270) <-1002-enable-pretty-printing\n"},"seq":48}
1: (270) <-1002-enable-pretty-printing
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (271) ->1002^done\n"},"seq":50}
1: (271) ->1002^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (271) ->(gdb)\n"},"seq":52}
1: (271) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (272) 1002: elapsed time 1\n"},"seq":54}
1: (272) 1002: elapsed time 1
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (272) <-1003-gdb-set disassembly-flavor intel\n"},"seq":56}
1: (272) <-1003-gdb-set disassembly-flavor intel
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (272) ->1003^done\n"},"seq":58}
1: (272) ->1003^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (272) ->(gdb)\n"},"seq":60}
1: (272) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (273) 1003: elapsed time 1\n"},"seq":62}
1: (273) 1003: elapsed time 1
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (274) <-1004-interpreter-exec console \"set pagination off\"\n"},"seq":64}
1: (274) <-1004-interpreter-exec console "set pagination off"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (276) ->=cmd-param-changed,param=\"pagination\",value=\"off\"\n"},"seq":66}
1: (276) ->=cmd-param-changed,param="pagination",value="off"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (276) ->1004^done\n"},"seq":68}
1: (276) ->1004^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (276) ->(gdb)\n"},"seq":70}
1: (276) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (277) 1004: elapsed time 2\n"},"seq":72}
1: (277) 1004: elapsed time 2
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (279) <-1005-interpreter-exec console \"set debuginfod enabled on\"\n"},"seq":74}
1: (279) <-1005-interpreter-exec console "set debuginfod enabled on"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (280) ->=cmd-param-changed,param=\"debuginfod enabled\",value=\"on\"\n"},"seq":76}
1: (280) ->=cmd-param-changed,param="debuginfod enabled",value="on"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (281) ->1005^done\n"},"seq":78}
1: (281) ->1005^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (281) ->(gdb)\n"},"seq":80}
1: (281) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (281) 1005: elapsed time 2\n"},"seq":82}
1: (281) 1005: elapsed time 2
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (282) <-1006-gdb-set auto-solib-add on\n"},"seq":84}
1: (282) <-1006-gdb-set auto-solib-add on
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (282) ->1006^done\n"},"seq":86}
1: (282) ->1006^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (283) ->(gdb)\n"},"seq":88}
1: (283) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (283) 1006: elapsed time 0\n"},"seq":90}
1: (283) 1006: elapsed time 0
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (283) <-1007-gdb-set solib-search-path /workspaces/TemplateBasicProject:\n"},"seq":92}
1: (283) <-1007-gdb-set solib-search-path /workspaces/TemplateBasicProject:
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (284) ->1007^done\n"},"seq":94}
1: (284) ->1007^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (284) ->(gdb)\n"},"seq":96}
1: (284) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (284) 1007: elapsed time 0\n"},"seq":98}
1: (284) 1007: elapsed time 0
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (284) <-1008-gdb-set stop-on-solib-events 1\n"},"seq":100}
1: (284) <-1008-gdb-set stop-on-solib-events 1
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (284) ->1008^done\n"},"seq":102}
1: (284) ->1008^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (285) ->(gdb)\n"},"seq":104}
1: (285) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (285) 1008: elapsed time 0\n"},"seq":106}
1: (285) 1008: elapsed time 0
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (285) <-1009-environment-cd /workspaces/TemplateBasicProject\n"},"seq":108}
1: (285) <-1009-environment-cd /workspaces/TemplateBasicProject
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (285) ->1009^done\n"},"seq":110}
1: (285) ->1009^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (286) ->(gdb)\n"},"seq":112}
1: (286) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (286) 1009: elapsed time 0\n"},"seq":114}
1: (286) 1009: elapsed time 0
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (286) <-1010-file-exec-and-symbols /workspaces/TemplateBasicProject/program.exe\n"},"seq":116}
1: (286) <-1010-file-exec-and-symbols /workspaces/TemplateBasicProject/program.exe
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (296) ->1010^done\n"},"seq":118}
1: (296) ->1010^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (296) ->(gdb)\n"},"seq":120}
1: (296) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (296) 1010: elapsed time 10\n"},"seq":122}
1: (296) 1010: elapsed time 10
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (297) <-1011-interpreter-exec console \"show architecture\"\n"},"seq":124}
1: (297) <-1011-interpreter-exec console "show architecture"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (298) ->~\"The target architecture is set to \\\"auto\\\" (currently \\\"i386:x86-64\\\").\\n\"\n"},"seq":126}
1: (298) ->~"The target architecture is set to \"auto\" (currently \"i386:x86-64\").\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (299) ->1011^done\n"},"seq":128}
1: (299) ->1011^done
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (299) ->(gdb)\n"},"seq":130}
1: (299) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (299) 1011: elapsed time 2\n"},"seq":132}
1: (299) 1011: elapsed time 2
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (300) <-1012-break-insert -f main\n"},"seq":134}
1: (300) <-1012-break-insert -f main
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (302) ->1012^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0x000000000000158a\",func=\"main()\",file=\"main.cpp\",fullname=\"/workspaces/TemplateBasicProject/main.cpp\",line=\"53\",thread-groups=[\"i1\"],times=\"0\",original-location=\"main\"}\n"},"seq":136}
1: (302) ->1012^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000000158a",func="main()",file="main.cpp",fullname="/workspaces/TemplateBasicProject/main.cpp",line="53",thread-groups=["i1"],times="0",original-location="main"}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (303) ->(gdb)\n"},"seq":138}
1: (303) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (310) 1012: elapsed time 9\n"},"seq":140}
1: (310) 1012: elapsed time 9
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (319) Send Event AD7EngineCreateEvent\n"},"seq":142}
1: (319) Send Event AD7EngineCreateEvent
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (322) Send Event AD7ProgramCreateEvent\n"},"seq":144}
1: (322) Send Event AD7ProgramCreateEvent
--> E (output): {"type":"event","event":"output","body":{"category":"telemetry","output":"VS/Diagnostics/Debugger/Launch","data":{"VS.Diagnostics.Debugger.ImplementationName":"Microsoft.MIDebugEngine","VS.Diagnostics.Debugger.EngineVersion":"17.12.40402.1","VS.Diagnostics.Debugger.HostVersion":"17.12.40402.1","VS.Diagnostics.Debugger.AdapterId":"cppdbg","VS.Diagnostics.Debugger.Launch.Duration":251,"VS.Diagnostics.Debugger.MIMode":"gdb","VS.Diagnostics.Debugger.FrameworkVersion":"8.0.2526.11203"}},"seq":146}
--> R (launch-2): {"type":"response","request_seq":2,"success":true,"command":"launch","body":{},"seq":148}
--> E (initialized): {"type":"event","event":"initialized","body":{},"seq":150}
<--   R (runInTerminal-6) [214 ms]: {"type":"response","seq":3,"command":"runInTerminal","request_seq":6,"success":true,"body":{"shellProcessId":2286}}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (374) ShellPid=8824\n"},"seq":153}
1: (374) ShellPid=8824
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (381) DebuggerPid=8826\n"},"seq":155}
1: (381) DebuggerPid=8826
<--   C (setBreakpoints-4): {"command":"setBreakpoints","arguments":{"source":{"name":"main.cpp","path":"/workspaces/TemplateBasicProject/main.cpp"},"lines":[8],"breakpoints":[{"line":8}],"sourceModified":false},"type":"request","seq":4}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (403) <-1013-break-insert -f main.cpp:8\n"},"seq":158}
1: (403) <-1013-break-insert -f main.cpp:8
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (403) ->1013^done,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0x0000000000001219\",func=\"biff(unsigned long)\",file=\"main.cpp\",fullname=\"/workspaces/TemplateBasicProject/main.cpp\",line=\"8\",thread-groups=[\"i1\"],times=\"0\",original-location=\"main.cpp:8\"}\n"},"seq":160}
1: (403) ->1013^done,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",addr="0x0000000000001219",func="biff(unsigned long)",file="main.cpp",fullname="/workspaces/TemplateBasicProject/main.cpp",line="8",thread-groups=["i1"],times="0",original-location="main.cpp:8"}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (403) ->(gdb)\n"},"seq":162}
1: (403) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (405) 1013: elapsed time 2\n"},"seq":164}
1: (405) 1013: elapsed time 2
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (414) <-1014-symbol-list-lines /workspaces/TemplateBasicProject/main.cpp\n"},"seq":166}
1: (414) <-1014-symbol-list-lines /workspaces/TemplateBasicProject/main.cpp
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (415) ->1014^done,lines=[{pc=\"0x0000000000001209\",line=\"7\"},{pc=\"0x0000000000001219\",line=\"8\"},{pc=\"0x000000000000121d\",line=\"8\"},{pc=\"0x000000000000123c\",line=\"9\"},{pc=\"0x0000000000001244\",line=\"9\"},{pc=\"0x0000000000001246\",line=\"8\"},{pc=\"0x000000000000124b\",line=\"10\"},{pc=\"0x0000000000001256\",line=\"10\"},{pc=\"0x0000000000001269\",line=\"10\"},{pc=\"0x000000000000126d\",line=\"9\"},{pc=\"0x000000000000127c\",line=\"12\"},{pc=\"0x00000000000012b9\",line=\"13\"},{pc=\"0x00000000000012d2\",line=\"14\"},{pc=\"0x00000000000012da\",line=\"14\"},{pc=\"0x00000000000012dc\",line=\"15\"},{pc=\"0x00000000000012ef\",line=\"15\"},{pc=\"0x0000000000001317\",line=\"14\"},{pc=\"0x0000000000001326\",line=\"17\"},{pc=\"0x0000000000001342\",line=\"18\"},{pc=\"0x0000000000001346\",line=\"19\"},{pc=\"0x0000000000001348\",line=\"22\"},{pc=\"0x0000000000001354\",line=\"23\"},{pc=\"0x00000000000013a4\",line=\"24\"},{pc=\"0x00000000000013e1\",line=\"25\"},{pc=\"0x00000000000013fa\",line=\"26\"},{pc=\"0x0000000000001402\",line=\"26\"},{pc=\"0x0000000000001404\",line=\"27\"},{pc=\"0x0000000000001417\",line=\"27\"},{pc=\"0x000000000000143f\",line=\"26\"},{pc=\"0x000000000000144b\",line=\"29\"},{pc=\"0x0000000000001467\",line=\"30\"},{pc=\"0x000000000000146a\",line=\"33\"},{pc=\"0x0000000000001476\",line=\"34\"},{pc=\"0x0000000000001484\",line=\"35\"},{pc=\"0x00000000000014af\",line=\"36\"},{pc=\"0x00000000000014c8\",line=\"37\"},{pc=\"0x00000000000014d0\",line=\"37\"},{pc=\"0x00000000000014d2\",line=\"38\"},{pc=\"0x00000000000014e5\",line=\"38\"},{pc=\"0x000000000000150d\",line=\"37\"},{pc=\"0x0000000000001519\",line=\"40\"},{pc=\"0x0000000000001535\",line=\"41\"},{pc=\"0x0000000000001548\",line=\"42\"},{pc=\"0x000000000000154b\",line=\"45\"},{pc=\"0x0000000000001557\",line=\"46\"},{pc=\"0x0000000000001565\",line=\"47\"},{pc=\"0x0000000000001578\",line=\"48\"},{pc=\"0x000000000000157c\",line=\"49\"},{pc=\"0x000000000000157e\",line=\"52\"},{pc=\"0x000000000000158a\",line=\"53\"},{pc=\"0x00000000000015b5\",line=\"54\"},{pc=\"0x00000000000015d1\",line=\"56\"},{pc=\"0x00000000000015d6\",line=\"57\"},{pc=\"0x00000000000015f2\",line=\"59\"},{pc=\"0x00000000000015f7\",line=\"60\"},{pc=\"0x0000000000001613\",line=\"62\"},{pc=\"0x000000000000161c\",line=\"63\"},{pc=\"0x0000000000001647\",line=\"64\"},{pc=\"0x0000000000001660\",line=\"65\"},{pc=\"0x0000000000001668\",line=\"65\"},{pc=\"0x000000000000166a\",line=\"66\"},{pc=\"0x000000000000167d\",line=\"66\"},{pc=\"0x00000000000016a5\",line=\"65\"},{pc=\"0x00000000000016b1\",line=\"68\"},{pc=\"0x00000000000016df\",line=\"70\"},{pc=\"0x00000000000016ed\",line=\"71\"},{pc=\"0x0000000000001718\",line=\"72\"},{pc=\"0x0000000000001731\",line=\"73\"},{pc=\"0x0000000000001739\",line=\"73\"},{pc=\"0x000000000000173b\",line=\"74\"},{pc=\"0x000000000000174e\",line=\"74\"},{pc=\"0x0000000000001776\",line=\"73\"},{pc=\"0x0000000000001782\",line=\"76\"},{pc=\"0x000000000000179e\",line=\"77\"},{pc=\"0x00000000000017a5\",line=\"0\"}]\n"},"seq":168}
1: (415) ->1014^done,lines=[{pc="0x0000000000001209",line="7"},{pc="0x0000000000001219",line="8"},{pc="0x000000000000121d",line="8"},{pc="0x000000000000123c",line="9"},{pc="0x0000000000001244",line="9"},{pc="0x0000000000001246",line="8"},{pc="0x000000000000124b",line="10"},{pc="0x0000000000001256",line="10"},{pc="0x0000000000001269",line="10"},{pc="0x000000000000126d",line="9"},{pc="0x000000000000127c",line="12"},{pc="0x00000000000012b9",line="13"},{pc="0x00000000000012d2",line="14"},{pc="0x00000000000012da",line="14"},{pc="0x00000000000012dc",line="15"},{pc="0x00000000000012ef",line="15"},{pc="0x0000000000001317",line="14"},{pc="0x0000000000001326",line="17"},{pc="0x0000000000001342",line="18"},{pc="0x0000000000001346",line="19"},{pc="0x0000000000001348",line="22"},{pc="0x0000000000001354",line="23"},{pc="0x00000000000013a4",line="24"},{pc="0x00000000000013e1",line="25"},{pc="0x00000000000013fa",line="26"},{pc="0x0000000000001402",line="26"},{pc="0x0000000000001404",line="27"},{pc="0x0000000000001417",line="27"},{pc="0x000000000000143f",line="26"},{pc="0x000000000000144b",line="29"},{pc="0x0000000000001467",line="30"},{pc="0x000000000000146a",line="33"},{pc="0x0000000000001476",line="34"},{pc="0x0000000000001484",line="35"},{pc="0x00000000000014af",line="36"},{pc="0x00000000000014c8",line="37"},{pc="0x00000000000014d0",line="37"},{pc="0x00000000000014d2",line="38"},{pc="0x00000000000014e5",line="38"},{pc="0x000000000000150d",line="37"},{pc="0x0000000000001519",line="40"},{pc="0x0000000000001535",line="41"},{pc="0x0000000000001548",line="42"},{pc="0x000000000000154b",line="45"},{pc="0x0000000000001557",line="46"},{pc="0x0000000000001565",line="47"},{pc="0x0000000000001578",line="48"},{pc="0x000000000000157c",line="49"},{pc="0x000000000000157e",line="52"},{pc="0x000000000000158a",line="53"},{pc="0x00000000000015b5",line="54"},{pc="0x00000000000015d1",line="56"},{pc="0x00000000000015d6",line="57"},{pc="0x00000000000015f2",line="59"},{pc="0x00000000000015f7",line="60"},{pc="0x0000000000001613",line="62"},{pc="0x000000000000161c",line="63"},{pc="0x0000000000001647",line="64"},{pc="0x0000000000001660",line="65"},{pc="0x0000000000001668",line="65"},{pc="0x000000000000166a",line="66"},{pc="0x000000000000167d",line="66"},{pc="0x00000000000016a5",line="65"},{pc="0x00000000000016b1",line="68"},{pc="0x00000000000016df",line="70"},{pc="0x00000000000016ed",line="71"},{pc="0x0000000000001718",line="72"},{pc="0x0000000000001731",line="73"},{pc="0x0000000000001739",line="73"},{pc="0x000000000000173b",line="74"},{pc="0x000000000000174e",line="74"},{pc="0x0000000000001776",line="73"},{pc="0x0000000000001782",line="76"},{pc="0x000000000000179e",line="77"},{pc="0x00000000000017a5",line="0"}]
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (428) ->(gdb)\n"},"seq":170}
1: (428) ->(gdb)
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (429) 1014: elapsed time 15\n"},"seq":172}
1: (429) 1014: elapsed time 15
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (437) Send Event AD7BreakpointBoundEvent\n"},"seq":174}
1: (437) Send Event AD7BreakpointBoundEvent
--> R (setBreakpoints-4): {"type":"response","request_seq":4,"success":true,"command":"setBreakpoints","body":{"breakpoints":[{"id":1,"verified":true,"line":8,"BoundBreakpoints":[]}]},"seq":176}
--> E (breakpoint): {"type":"event","event":"breakpoint","body":{"reason":"changed","breakpoint":{"id":1,"verified":true,"line":8,"BoundBreakpoints":[]}},"seq":178}
<--   C (setFunctionBreakpoints-5): {"command":"setFunctionBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":5}
--> R (setFunctionBreakpoints-5): {"type":"response","request_seq":5,"success":true,"command":"setFunctionBreakpoints","body":{"breakpoints":[]},"seq":181}
<--   C (setInstructionBreakpoints-6): {"command":"setInstructionBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":6}
--> R (setInstructionBreakpoints-6): {"type":"response","request_seq":6,"success":true,"command":"setInstructionBreakpoints","body":{"breakpoints":[]},"seq":184}
<--   C (setExceptionBreakpoints-7): {"command":"setExceptionBreakpoints","arguments":{"filters":[],"filterOptions":[]},"type":"request","seq":7}
--> R (setExceptionBreakpoints-7): {"type":"response","request_seq":7,"success":true,"command":"setExceptionBreakpoints","body":{"breakpoints":[]},"seq":187}
<--   C (setDataBreakpoints-8): {"command":"setDataBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":8}
--> R (setDataBreakpoints-8): {"type":"response","request_seq":8,"success":true,"command":"setDataBreakpoints","body":{"breakpoints":[]},"seq":190}
<--   C (configurationDone-9): {"command":"configurationDone","type":"request","seq":9}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (510) Send Event AD7LoadCompleteEvent\n"},"seq":194}
1: (510) Send Event AD7LoadCompleteEvent
--> R (configurationDone-9): {"type":"response","request_seq":9,"success":true,"command":"configurationDone","body":{},"seq":193}
--> E (output): {"type":"event","event":"output","body":{"category":"stdout","output":"=thread-group-added,id=\"i1\"\nGNU gdb (Ubuntu 16.2-8ubuntu1) 16.2\nCopyright (C) 2024 Free Software Foundation, Inc.\nLicense GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law.\nType \"show copying\" and \"show warranty\" for details.\nThis GDB was configured as \"x86_64-linux-gnu\".\nType \"show configuration\" for configuration details.\nFor bug reporting instructions, please see:\n<https://www.gnu.org/software/gdb/bugs/>.\nFind the GDB manual and other documentation resources online at:\n    <http://www.gnu.org/software/gdb/documentation/>.\n\nFor help, type \"help\".\nType \"apropos word\" to search for commands related to \"word\".\nWarning: Debuggee TargetArchitecture not detected, assuming x86_64.\n=cmd-param-changed,param=\"pagination\",value=\"off\"\n"},"seq":197}
=thread-group-added,id="i1"
GNU gdb (Ubuntu 16.2-8ubuntu1) 16.2
Copyright (C) 2024 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
Warning: Debuggee TargetArchitecture not detected, assuming x86_64.
=cmd-param-changed,param="pagination",value="off"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (518) <-1015-exec-run\n"},"seq":199}
1: (518) <-1015-exec-run
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (518) ->&\"warning: Error disabling address space randomization: Operation not permitted\\n\"\n"},"seq":201}
1: (518) ->&"warning: Error disabling address space randomization: Operation not permitted\n"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1326) ->=thread-group-started,id=\"i1\",pid=\"8839\"\n"},"seq":203}
1: (1326) ->=thread-group-started,id="i1",pid="8839"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1326) ->=thread-created,id=\"1\",group-id=\"i1\"\n"},"seq":205}
1: (1326) ->=thread-created,id="1",group-id="i1"
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1326) ->=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0x00006289c74c358a\",func=\"main()\",file=\"main.cpp\",fullname=\"/workspaces/TemplateBasicProject/main.cpp\",line=\"53\",thread-groups=[\"i1\"],times=\"0\",original-location=\"main\"}\n"},"seq":207}
1: (1326) ->=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x00006289c74c358a",func="main()",file="main.cpp",fullname="/workspaces/TemplateBasicProject/main.cpp",line="53",thread-groups=["i1"],times="0",original-location="main"}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1327) ->=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0x00006289c74c3219\",func=\"biff(unsigned long)\",file=\"main.cpp\",fullname=\"/workspaces/TemplateBasicProject/main.cpp\",line=\"8\",thread-groups=[\"i1\"],times=\"0\",original-location=\"main.cpp:8\"}\n"},"seq":209}
1: (1327) ->=breakpoint-modified,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",addr="0x00006289c74c3219",func="biff(unsigned long)",file="main.cpp",fullname="/workspaces/TemplateBasicProject/main.cpp",line="8",thread-groups=["i1"],times="0",original-location="main.cpp:8"}
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1327) ->=library-loaded,id=\"/lib64/ld-linux-x86-64.so.2\",target-name=\"/lib64/ld-linux-x86-64.so.2\",host-name=\"/lib64/ld-linux-x86-64.so.2\",symbols-loaded=\"0\",thread-group=\"i1\",ranges=[{from=\"0x00007eca3c02d000\",to=\"0x00007eca3c05a235\"}]\n"},"seq":211}
1: (1327) ->=library-loaded,id="/lib64/ld-linux-x86-64.so.2",target-name="/lib64/ld-linux-x86-64.so.2",host-name="/lib64/ld-linux-x86-64.so.2",symbols-loaded="0",thread-group="i1",ranges=[{from="0x00007eca3c02d000",to="0x00007eca3c05a235"}]
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1331) <-1016-thread-info 1\n"},"seq":213}
1: (1331) <-1016-thread-info 1
--> E (output): {"type":"event","event":"output","body":{"category":"console","output":"1: (1335) <-1017-symbol-list-lines /workspaces/TemplateBasicProject/main.cpp\n"},"seq":215}
1: (1335) <-1017-symbol-list-lines /workspaces/TemplateBasicProject/main.cpp
<--   C (threads-10): {"command":"threads","type":"request","seq":10}
--> R (threads-10): {"type":"response","request_seq":10,"success":true,"command":"threads","body":{"threads":[]},"seq":218}

Other Extensions

No response

Additional Information

No response

[KieraConway]

+1 / Confirming Same Regression on WSL

I am experiencing this exact same infinite initialization hang on Windows 11 using WSL (Ubuntu 24.04.4 LTS) with GNU gdb (Ubuntu 15.1-1ubuntu1~24.04.1) 15.1.

Symptom Timing Correction

Unlike some instances where the terminal warning occurs at termination, the message &"warning: GDB: Failed to set controlling terminal: Operation not permitted\n" prints immediately in the cppdbg terminal tab the second I press F5, right before the debugger freezes indefinitely. The execution never reaches any breakpoints, the debug toolbar stays open at the top, and clicking the red "Stop" button does nothing. I am forced to send a Ctrl+C ([ble: exit 130]) in the terminal tab to regain control of the interface.

Exhaustive Troubleshooting Attempted

To isolate this, I performed a massive deep clean of my environment before discovering it was an extension regression. (None of which resolved the freeze on version 1.30.x - 1.32.x):

• Bypassing Environment Variables: Attempted to disable the symbol downloads via launch.json environment profiles and gdbinit parameter overrides (-gdb-set debuginfod enabled off). The Debug Console logs confirmed the parameter changed to "off", but the engine still stalled.
• Network Infrastructure Reset: Executed a full host Windows network stack flush via netsh winsock reset.
• Toolchain Reinstallation: Fully updated and reinstalled gdb natively inside the WSL Linux environment.
• Aggressive Cache Purging: Deleted all global VS Code storage, workspace cache, and extension metadata states across both systems:
  • Windows: %APPDATA%\Code\User\globalStorage\ and %APPDATA%\Code\User\workspaceStorage\
  • WSL: ~/.vscode-server/data/User/ and ~/.vscode-server/extensions/ms-vscode.cpptools*
• Complete Extension Clean Reinstall: Uninstalled the extension, wiped the directories, and reinstalled from scratch inside the WSL server instance.

Final Verification

• Native Toolchain Execution: Running a manual make and executing the binary with ./main directly in a native WSL terminal runs perfectly.
• Native GDB Execution: Running gdb ./main in a standalone WSL terminal initializes immediately, successfully catches a breakpoint set at main, and steps through the code flawlessly with next.
• VS Code Task System: The built-in "Run without Debugging" option works fine. (Confirming that compiler paths, file permissions, and binary linking are not the issue. )

Downgrading the C/C++ extension to 1.29.3 immediately and completely fixes the issue. My projects build, link, and hit breakpoints perfectly on 1.29.3 without altering a single line of my original configuration files.

[OrkunTokdemir]

We have the same problem, our Ubuntu CI tests are broken at the moment.

[roland-redmount]

I have the same problem on Ubuntu 24.04. I also found that the debuginfod enabled parameter of GDB has no effect. In my case, the environment variable DEBUGINFOD_URLS was set by the system, and this apparently overrides debuginfod enabled so that GDB attempts the download anyway. Clearing DEBUGINFOD_URLS resolved the issue.

[gyhkijffk]

I am having the same problem and I tried to fix it in several ways but nothing worked...

I also opened this GithHub post so someone might post the answer there: microsoft/vscode#316682

[scipele]

Having the same issue with my
Ubuntu 26.04 LTS
vcode --version 1.120.0
This is the only thing that fixed the issue for me as well. Thanks for the suggestion as this was very frustrating->
"Downgrading the C/C++ extension to 1.29.3 immediately and completely fixes the issue."

[Kitsee]

I've worked around this issue by clearing DEBUGINFOD_URLS env var in my bashrc file. Not a permanent solution but will work for now until something is done or debuginfod.ubuntu.com is back up. The fact gdb hangs to the point that sigkill wont even kill it when the url is not available is rather worrying.
add the following line to the end of ~/.bashrc

export DEBUGINFOD_URLS=""

[Steven-Faulhaber-Resideo]

I was not able to get this working by downgrading my cpp tools extension to 1.29.3. I WAS able to get it working by downgrading vscode to 1.119.0. Something broke in 1.120.0. Clearing DEBUGINFOD_URLS allows 1.120.0 to work even though 1.119.0 works with DEBUGINFOD_URLS set.

Created microsoft/vscode#317136

[BeomseoChoi]

Thank you.

I tested those two methods: 1. downgrading the cpp extension to a specific version. 2. export DEBUGINFOD_URLS="".

1. Downgrading the extension to 1.29.3 has worked for me without emptying the environment value.
2. I rolled it back to 1.32.2 and erased DEBUGINFOD_URLS. It also worked for me.

I might just use the second method to use GDB.

[playmyskay]

Related to: #14460