[Bug 1868055] Re: cannot run golang app with docker, version 17.09.1-ce, disabling core 0 and qemu-arm, version 2.7.

[Thomas Huth]

The QEMU project is currently moving its bug tracking to another system.
For this we need to know which bugs are still valid and which could be
closed already. Thus we are setting older bugs to "Incomplete" now.

If you still think this bug report here is valid, then please switch
the state back to "New" within the next 60 days, otherwise this report
will be marked as "Expired". Or please mark it as "Fix Released" if
the problem has been solved with a newer version of QEMU already.

Thank you and sorry for the inconvenience.


** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1868055

Title:
  cannot run golang app with docker, version 17.09.1-ce, disabling core
  0 and qemu-arm, version 2.7.

Status in QEMU:
  Incomplete

Bug description:
  Hello!
  I figure out that sometimes simple go application is not working.
  I am using docker + qemu-arm + go( for armv7l).

  These are version info below.

  root@VDBS1535:~# docker -v
  Docker version 17.09.1-ce, build 19e2cf6

  bash-3.2# qemu-arm --version
  qemu-arm version 2.7.0, Copyright (c) 2003-2016 Fabrice Bellard and the QEMU 
Project developers

  $ go version
  go version go1.12.6 linux/arm
  $ go env
  GOARCH="arm"
  GOBIN=""
  GOCACHE="/home/quickbuild/.cache/go-build"
  GOEXE=""
  GOFLAGS=""
  GOHOSTARCH="arm"
  GOHOSTOS="linux"
  GOOS="linux"
  GOPATH="/home/quickbuild/go"
  GOPROXY=""
  GORACE=""
  GOROOT="/usr/lib/golang"
  GOTMPDIR=""
  GOTOOLDIR="/usr/lib/golang/pkg/tool/linux_arm"
  GCCGO="gccgo"
  GOARM="7"
  CC="gcc"
  CXX="g++"
  CGO_ENABLED="1"
  GOMOD=""
  CGO_CFLAGS="-g -O2"
  CGO_CPPFLAGS=""
  CGO_CXXFLAGS="-g -O2"
  CGO_FFLAGS="-g -O2"
  CGO_LDFLAGS="-g -O2"
  PKG_CONFIG="pkg-config"
  GOGCCFLAGS="-fPIC -marm -pthread -fmessage-length=0 
-fdebug-prefix-map=/tmp/go-build242285369=/tmp/go-build 
-gno-record-gcc-switches"

  This issue is come only when I disable core 0 using a command below.
  please check "--cpuset-cpus=1-55" option.

  sudo docker run --privileged -d -i -t --cpuset-cpus=1-55 --mount
  type=bind,source="/home/dw83kim/mnt",destination="/mnt" --network host
  --name="ubuntu_core1" ubuntu:xenial-20200212

  
  This is what I have tested in the environment above.

  package main
  func main(){
      for i:=0; i<1000; i++ {
          println("Hello world")
      }
  }

  This is one of the error logs have faced sometimes not always.

  bash-3.2# go run test.go
  fatal error: schedule: holding locks
  panic during panic
  SIGILL: illegal instruction
  PC=0xc9ec4c m=3 sigcode=2

  goroutine 122 [runnable]:
  qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  Segmentation fault (core dumped)
  bash-3.2#

  Please check it.
  Thanks in advance.

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