Trying to install SBT hangs

[harshhpareek]

Please use the following bug reporting template to help produce actionable and reproducible issues:

• A brief description
  SBT is Simple Build Tool used to build Scala projects. I tried to install and run sbt as described in http://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html
  Installation succeeded but trying to run sbt causes bash to hang.
• Expected results
  Sbt is expected to produce some output indicating what it is doing (downloading packages, compiling the project etc) and is expected to terminate.
• Actual results (with terminal output if applicable)
  No output appears. CPU usage remains high (appears as Java in task manager), but it seems no progress is made
• Your Windows build number
  Version 10.0.14393
• Steps / commands required to reproduce the error
  Install sbt according to http://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html
  Try to run "sbt" in bash
• Strace of the failing command
  N/A
• Required packages and commands to install
  Package: Sbt according to http://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html
  Command: sbt

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[harshhpareek]

I removed sbt as installed above, and installed sbt with the Windows installer as described in http://www.scala-sbt.org/release/docs/Installing-sbt-on-Windows.html. This worked fine in cmd.exe but in bash, it hangs again. Looks like this is a compatibility problem between sbt and bash on Windows

[aseering]

Hi @harshhpareek , thanks for reporting this bug! Could you elaborate, though, on why you say "N/A" for the strace? I would be interested to see an strace of the sbt command, to see specifically what syscall or other operation it is hanging on.

[aseering]

Also, I assume this tool (like much of Scala) is built on top of the JVM? Note that there are many tickets in this bugtracker about bugs in support for common Java JVM implementations; there are a bunch of known issues that Microsoft has said that they will address in future releases. I wouldn't be surprised if this were related to that.

[benhillis]

Trying this now (I'm using default-jre, let me know if I need a different version of java).

[harshhpareek]

@aseering , sorry I meant Not Available (was at a different computer, but thought it was worth making the report). I'm noticing the same thing @SRGOM said, it blocks saying wait4(-1,
Paste here: http://pastebin.com/rwh8zxQf

It stops after printing the comma. Is that normal behaviour?

[benhillis]

@SRGOM Looks like the commands worked? I'm at a terminal that's accepting input, is there anything I should enter?

[benhillis]

@SRGOM Yes this is with a build that has the fix for #746.

ben@BENHILL-Z800:/mnt/c/benhill$ java -version
java version "1.7.0_101"
OpenJDK Runtime Environment (IcedTea 2.6.6) (7u101-2.6.6-0ubuntu0.14.04.1)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)

[harshhpareek]

I left that terminal open and it later showed a failed thread dump and
displayed http://pastebin.com/nDdqygEx

I don't know what this means, but attaching this here in case it helps, and here is the associated core dump: http://pastebin.com/MJhEH8T6

[benhillis]

@SRGOM The fix is in the lxcore.sys driver. The fix will be our first post-Anniversary Update Insider build and I'm pushing to get this fix back-ported, hopefully the servicing folks are amenable.

[harshhpareek]

Thank you Ben ! Really looking forward to Java working!

On Thu, Aug 11, 2016, 8:12 PM SRGOM [email protected] wrote:

I cannot thank you guys enough.

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[tara-raj]

Closing as per the above comment - #813 (comment). Fix is now available