# Issue 1
# Kernel panic when we try to restart macOS,
# after using a virtual disk. It is always a good
# idea to keep multiple open files and also a Terminal
# accessing the virtual disk when we try to eject it.
# This helps reproducing the issue.
# One way of reproducing would be to compile OpenWRT.
# Detailed steps are provided below. Sometimes I have
# multiple virtual disks open at the same time, each
# contains a build for a different atchitecture.
# The actual architecture does no matter.

# I also managed to reproduce it by clonning a private
# repository and then starting a python web server from.
# Like usual I forget closing the terminal and any open
# files in Xcode, the first time I try to eject it,
# until eventually I close everything.

# Setup OpenWRT build environment, and compile a test image.
xcode-select --install

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

brew install apr apr-util arping asciidoc autoconf automake bash bdw-gc berkeley-db binutils binwalk boost brotli bzip2 c-ares cmake coreutils curl dash diffutils docbook e2fsprogs fastjar findutils flex freetype gawk gcc gdbm gettext git git-extras gmp gnu-getopt gnu-sed gnu-tar gnutls gputils grep guile icu4c intltool isl jemalloc libev libevent libffi libgcrypt libgpg-error libidn2 libmetalink libmpc libnet libpng libssh2 libtasn1 libtool libunistring libxml2 libxslt libyaml lz4 m4 make mercurial mpdecimal mpfr mtr ncurses nettle nghttp2 numpy openblas openldap openssl@1.1 p11-kit p7zip patchutils pcre pcre2 perl pkg-config python@3.8 python@3.9 quilt readline rtmpdump ruby source-highlight sqlite ssdeep subversion tcl-tk unbound unzip utf8proc wget xz zlib zstd

cd /usr/local/bin
ln -s /usr/local/opt/make/libexec/gnubin/make make

# Edit /etc/shells:
sudo nano /etc/shells

# Add the following line at the end:
/usr/local/bin/bash

# Change the default shell to bash, and exit
chsh -s /usr/local/bin/bash
exit

# open Disk Utility
# press Command-N to create a new virtual disk
# Image Format: sparse disk image
# save as: ~/vhd/bbb
# Size: 50 GB
# Format: APFS (casesensitive)
# Encryption: none
# Partitions: Single partition - GUID Partition Map
# Save
# open a new terminal

git clone https://github.com/openwrt/openwrt.git
cd openwrt

./scripts/feeds update -a
./scripts/feeds install -a

make defconfig
make menuconfig

# Target System (Marvell EBU Armada)
# Subtarget (Marvell Armada 37x/38x/XP)
# Target Profile (Linksys WRT3200ACM)
# Save
# Exit

make -j 16


# Open any text or source file from the virtual disk
# in Xcode before or during the build, and keep it open

# Once the build is complete, try to eject the virtual disk,
# without closing Terminal: this should fail saying that
# the disk is in use by Terminal. Press Control-D to close
# Terminal, and try ejecting again. This should succeed,
# and the file open in Xcode will close automatically.

# Restart macOS from the Apple menu.
# If the laptop stops responding on a walpaper with a
# spining circle, and the trackpad no longer clicks when
# pressed, the issue is reproduced. The laptop should
# power-off on its own after five minutes, producing a loud
# fan-spin. Wait a few seconds, and press a key if it
# does not restart on its own. A message should appear
# notifying about kernel panic. After that, the system starts.
# After login, another message is disaplayed asking to submit
# a report to Apple.


# Issue 2
# Right after a clean install of macOS Big Sur 11.2.3,
# I encountered issues with my Wi-Fi connection.
# Usually it connects for a moment, then a few seconds later,
# the Wi-Fi icon shows connected, but there is no ping
# from my router or from Internet. Turning Wi-Fi off and back
# on helps. Then it works well until the next time I reboot.
# This morning I installed Xcode, but then when I ran
# xcode-select --install
# the connection failed and I had to turn off/on Wi-Fi.
# It also failed when I tried opening the App Store, to install
# Xcode, and also after xcode-select --install, when I tried
# searching something in Safari.