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Hangs forever - Minimum Not Working Example [BUG] #495

Closed caseykneale closed 4 years ago

caseykneale commented 4 years ago

Please search existing issues to avoid duplicates.

Details

Steps to reproduce

either run these two lines 3x

a = randn(25, 25)
a[:]

or the following

a = randn(25, 25)
a[:]
a = randn(25, 25)
a[:]
a = randn(25, 25)
a[:]

it seems to hang forever on the third repetition on the a[:]

DatName commented 4 years ago

I also started to see strange hangs after latest updates (Atom.jl v0.12.5, Atom itself is 1.44.0). In the last hour I had to force quit juno 4 or 5 times, so its pretty frequent.

But they seem to happen randomly and only when executing code in file, not in the REPL. Though not 100% sure about this.

Hitting ctrl + c one time in the REPL while hanging yields:

ERROR: InterruptException:
Stacktrace:
 [1] try_yieldto(::typeof(Base.ensure_rescheduled), ::Base.RefValue{Task}) at ./task.jl:611
 [2] wait() at ./task.jl:668
 [3] wait(::Base.GenericCondition{Base.AlwaysLockedST}) at ./condition.jl:106
 [4] blockinput() at ~/.julia/packages/Atom/QOKyk/src/repl.jl:97
 [5] evalrepl(::Module, ::String) at ~/.julia/packages/Atom/QOKyk/src/repl.jl:204
 [6] top-level scope at ~/.julia/packages/Atom/QOKyk/src/repl.jl:260

And than hitting it again:

ERROR: InterruptException:
Stacktrace:
 [1] poptaskref(::Base.InvasiveLinkedListSynchronized{Task}) at ./task.jl:660
 [2] wait() at ./task.jl:667
 [3] wait(::Base.GenericCondition{Base.Threads.SpinLock}) at ./condition.jl:106
 [4] wait_readnb(::Base.TTY, ::Int64) at ./stream.jl:355
 [5] eof(::Base.TTY) at ./stream.jl:48
 [6] eof(::REPL.Terminals.TTYTerminal) at ./io.jl:361
 [7] match_input(::Dict, ::Any, ::Any, ::Any, ::Any) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/REPL/src/LineEdit.jl:1342 (repeats 2 times)
 [8] prompt!(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/REPL/src/LineEdit.jl:2390
 [9] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/REPL/src/LineEdit.jl:2301
 [10] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/REPL/src/REPL.jl:1045
 [11] run_repl(::REPL.AbstractREPL, ::Any) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/REPL/src/REPL.jl:201
 [12] (::Base.var"#770#772"{Bool,Bool,Bool,Bool})(::Module) at ./client.jl:382
 [13] #invokelatest#1 at ./essentials.jl:709 [inlined]
 [14] invokelatest at ./essentials.jl:708 [inlined]
 [15] run_main_repl(::Bool, ::Bool, ::Bool, ::Bool, ::Bool) at ./client.jl:366
 [16] exec_options(::Base.JLOptions) at ./client.jl:304
 [17] _start() at ./client.jl:460

Julia has exited.
Press Enter to start a new session.

Hope that helps.

caseykneale commented 4 years ago

Same bug as the issue above, and same behaviour when interrupted. Maybe the new Atom.jl is the smoking gun?

carranco-sga commented 4 years ago

I have experienced similar hangs since updating Atom to the latest version, which prompted Juno to update my Julia packages to interact with it. I tried reinstalling my Julia packages, reinstalling and updating Julia, reinstalling and updating the Atom packages and reinstalling Julia and Atom from the ground up; nothing of this helped.

Following @caseykneale's hunch, I downgraded my Atom.jl package to version v0.12.3 and so far it seems the hangs have stopped.

What I did was, using the REPL:

] pin Atom@v0.12.3

Then I restarted Atom and julia and tried again.

Hope this is useful.

caseykneale commented 4 years ago

I haven't had a chance to dig further yet, but I can confirm that if you pin 0.12.3 this minimum not working example works! Nice find! This is a suitable work around for the time being. Good contribution

pfitzseb commented 4 years ago

Should be fixed by https://github.com/JunoLab/Atom.jl/pull/290.

carranco-sga commented 4 years ago

So far I have used Atom@v0.12.6 (the one that incorporates @pfitzseb's fixes and have experienced no hangups.

Thanks!

caseykneale commented 4 years ago

same story here I am closing this!