webapp crash in background

[haraldschilly]

while cocalc was in the background, it crashed. there is the stacktrace. in particular, I have no idea why this origins in close_project_tab

link: https://reactjs.org/docs/error-decoder.html?invariant=311

Error: Minified React error #311; visit https://reactjs.org/docs/error-decoder.html?invariant=311 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    Qi https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    useState https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    useState https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    l https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3222
    l https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3222
    l https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3222
    useTypedRedux https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3222
    ProjectPage https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3396
    Ki https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    zo https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    ys https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    yc https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    gc https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    cc https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    Ya https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    unstable_runWithPriority https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    qa https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    Ya https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    Wa https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    ac https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    go https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1291
    o https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3222
    emit https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:70
    _handle_store_change https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:459
    _redux_store_change https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:9
    g https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:618
    _set_state https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:9
    setState https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:637
    setState https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3210
    close_all https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3210
    close_all_files https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3202
    destroy https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3202
    removeActions https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:9
    removeProjectReferences https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:9
    set_project_closed https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:1228
    close_project_tab https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:3268
    _projects_store_change https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:190
    emit https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:70
    _handle_store_change https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:459
    _redux_store_change https://cocalc.com/app#projects/14eed217-2d3c-4975-a381-b69edcb40e0e/files/terminal.term?session=default line 1 > eval:9
[...]

[williamstein]

while cocalc was in the background

What does "cocalc was in the background" mean exactly?

[haraldschilly]

It wasn't the focused tab and I also was in a different application.

[williamstein]

Was it idle timeouted, so the screen looked greyed out with the websockets disconnected?

[haraldschilly]

No, and I have a long timeout. I guess this happened within 10 minutes.

[haraldschilly]

It was this red crash banner with the robot icon.

[haraldschilly]

Checking other issues, this one here is similar because there is also close_all/close_all_files leading to ProjectPage in the stacktrace #4850

[williamstein]

OK, then I too have absolutely no clue how close_project_tab could get called. Pretty interesting/weird. I wonder if there is a code path that involves closing the project automatically if the user is "perceived" as not being a collaborator on that project. Maybe that could randomly happen for some reason (e.g., temporarily not being signed in). That's my best guess for now.