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Merge pull request #239 from samueldr-wip/feature/stage-1-gracefulier-errors-handling

stage-1: More useful error handler
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Samuel Dionne-Riel 2020-11-13 20:11:22 -05:00 committed by GitHub
commit 08e75d3733
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31 changed files with 645 additions and 233 deletions

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After

Width:  |  Height:  |  Size: 17 KiB

22
boot/error/default.nix Normal file
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@ -0,0 +1,22 @@
{ runCommand
, lib
, mruby
}:
# mkDerivation will append something like -aarch64-unknown-linux-gnu to the
# derivation name with cross, which will break the mruby code loading.
# Since we don't need anything from mkDerivation, really, let's use runCommand.
runCommand "boot-error.mrb" {
src = lib.cleanSource ./.;
lib = lib.cleanSource ../recovery-menu/lib;
nativeBuildInputs = [
mruby
];
} ''
mrbc \
-o $out \
$(find $lib -type f -name '*.rb' | sort) \
$(find $src/lib -type f -name '*.rb' | sort) \
$src/main.rb
''

View File

@ -0,0 +1,39 @@
# This only works as long as the elements are not in a layout.
class ShadedText
OFFSET = 2
def initialize(*args)
@secondary = LVGL::LVLabel.new(*args)
style = @secondary.get_style(LVGL::LABEL_STYLE::MAIN).dup
@secondary.set_style(LVGL::LABEL_STYLE::MAIN, style)
style.text_color = 0xFF000000
@main = LVGL::LVLabel.new(*args)
style = @main.get_style(LVGL::LABEL_STYLE::MAIN).dup
@main.set_style(LVGL::LABEL_STYLE::MAIN, style)
style.text_color = 0xFFFFFFFF
# Ensures the position is reset at least once, to sync-up the shade.
set_pos(0, 0)
end
def method_missing(*args)
@main.send(*(args.dup))
@secondary.send(*(args.dup))
end
def set_pos(x, y)
@main.set_pos(x, y)
@secondary.set_pos(x+OFFSET, y+OFFSET)
end
def set_x(value)
@main.set_x(value)
@secondary.set_x(value+OFFSET)
end
def set_y(value)
@main.set_y(value)
@secondary.set_y(value+OFFSET)
end
end

View File

@ -1,55 +1,36 @@
# Get exclusive control of the framebuffer
# By design we will not restore the console at exit.
# We are assuming the target does not necessarily have a console attached to
# the framebuffer, so this program has to be enough by itself.
VTConsole.map_console(0)
begin
# Prepare LVGL
LVGL::Hacks.init()
data = JSON.parse(File.read(ARGV.first))
$color = ARGV.shift
$code = ARGV.shift
$message = ARGV.shift
$exit = false
$code = data["code"]
$color = data["color"]
$delay = data["delay"]
$message = data["message"]
$status = data["status"]
$title = data["title"]
$color = $color.rjust(6, "0").rjust(8, "F").to_i(16)
# This only works as long as the elements are not in a layout.
class ShadedText
def initialize(*args)
@secondary = LVGL::LVLabel.new(*args)
style = @secondary.get_style(LVGL::LABEL_STYLE::MAIN).dup
@secondary.set_style(LVGL::LABEL_STYLE::MAIN, style)
style.text_color = 0xFF000000
@main = LVGL::LVLabel.new(*args)
style = @main.get_style(LVGL::LABEL_STYLE::MAIN).dup
@main.set_style(LVGL::LABEL_STYLE::MAIN, style)
style.text_color = 0xFFFFFFFF
# Ensures the position is reset at least once.
set_pos(0, 0)
end
def method_missing(*args)
@main.send(*(args.dup))
@secondary.send(*(args.dup))
end
def set_pos(x, y)
@main.set_pos(x, y)
@secondary.set_pos(x+2, y+2)
end
end
class UI
# As this is not using BaseWindow, LVGUI::init isn't handled for us.
LVGUI.init()
def initialize()
screen
sad_phone
code
message
add_screen
# First add the title bar, other elements will sit under.
add_title_bar
# Then, action pane, so we can get its height
add_actions_pane
# Finally, messages pane, which takes the remainder.
add_messages_pane
# Re-compute the layout
relayout()
end
def screen()
def add_screen()
@screen = LVGL::LVContainer.new()
# Create a new style
@ -60,54 +41,317 @@ class UI
style.body_grad_color = $color
end
def sad_phone()
file = nil
file = "/sad-phone.svg" if File.exist?("/sad-phone.svg")
return unless file
def add_title_bar()
@title_bar = LVGL::LVContainer.new(@screen)
@title_bar.set_width(@screen.get_width())
@title_bar.set_height(16*unit)
@title_bar.set_pos(0, 0)
if @screen.get_height > @screen.get_width
LVGL::Hacks::LVNanoSVG.resize_next_width(@screen.get_width)
else
LVGL::Hacks::LVNanoSVG.resize_next_height(@screen.get_height)
@title_bar.get_style(LVGL::CONT_STYLE::MAIN).dup.tap do |style|
@title_bar.set_style(LVGL::CONT_STYLE::MAIN, style)
style.body_main_color = 0x00000000
style.body_grad_color = 0x00000000
style.body_border_width = 0
style.body_radius = 0
style.body_opa = (255 * 0.30).to_i
end
add_sad_phone
add_title
end
def add_actions_pane()
@actions_pane = LVGL::LVContainer.new(@screen)
@actions_pane.set_width(get_pane_width())
# When horizontal, we know it's placed to the right, full height.
if horizontal?
@actions_pane.set_height(@screen.get_height() - @title_bar.get_height())
@actions_pane.set_pos(get_pane_width(), @title_bar.get_height())
end
@actions_pane.get_style(LVGL::CONT_STYLE::MAIN).dup.tap do |style|
@actions_pane.set_style(LVGL::CONT_STYLE::MAIN, style)
style.body_main_color = 0x00000000
style.body_grad_color = 0x00000000
style.body_border_width = 0
style.body_radius = 0
style.body_opa = (255 * 0.20).to_i
end
add_time_left
end
def add_messages_pane()
@messages_pane = LVGL::LVContainer.new(@screen)
@messages_pane.set_width(get_pane_width())
@messages_pane.set_pos(0, @title_bar.get_height())
# When horizontal, full height
if horizontal?
@messages_pane.set_height(@screen.get_height() - @title_bar.get_height())
end
@messages_pane.get_style(LVGL::CONT_STYLE::MAIN).dup.tap do |style|
@messages_pane.set_style(LVGL::CONT_STYLE::MAIN, style)
style.body_main_color = 0x00000000
style.body_grad_color = 0x00000000
style.body_border_width = 0
style.body_radius = 0
style.body_opa = (255 * 0).to_i
end
add_message_title
add_message
end
# Title elements
def add_sad_phone()
file = nil
file = "/sad.svg" if File.exist?("/sad.svg")
file = "sad.svg" if File.exist?("sad.svg")
return unless file
LVGL::Hacks::LVNanoSVG.resize_next_height(@title_bar.get_height - 2 * padding)
@sad_phone = LVGL::LVImage.new(@screen)
@sad_phone.set_src(file)
@sad_phone.set_pos(2 * padding, padding)
end
# Center the image
@sad_phone.set_pos(
@screen.get_width / 2 - @sad_phone.get_width / 2,
@screen.get_height / 2 - @sad_phone.get_height / 2,
def add_title()
@title = new_text($code, parent: @title_bar)
@title.set_align(LVGL::LABEL_ALIGN::LEFT)
@title.set_x(@sad_phone.get_x()*2 + @sad_phone.get_width())
@title.set_y(@title_bar.get_height / 2 - @title.get_height / 2)
@title.set_width(@title_bar.get_width() - @title.get_x())
end
# Messages pane elements
def add_message_title()
@message_title = new_text($title, parent: @messages_pane)
@message_title.set_align(LVGL::LABEL_ALIGN::LEFT)
@message_title.set_pos(
padding,
padding,
)
end
def code()
@code = ShadedText.new(@screen)
@code.set_long_mode(LVGL::LABEL_LONG::BREAK)
@code.set_align(LVGL::LABEL_ALIGN::CENTER)
@code.set_width((@screen.get_width * 0.8).to_i)
@code.set_text($code)
@code.set_pos(
@screen.get_width / 2 - @code.get_width / 2,
(@screen.get_height * 0.05).to_i
)
end
def message()
@message = ShadedText.new(@screen)
@message.set_long_mode(LVGL::LABEL_LONG::BREAK)
@message.set_align(LVGL::LABEL_ALIGN::CENTER)
@message.set_width((@screen.get_width * 0.95).to_i)
@message.set_text($message)
def add_message()
@message = new_text($message, parent: @messages_pane)
@message.set_align(LVGL::LABEL_ALIGN::LEFT)
@message.set_pos(
@screen.get_width / 2 - @message.get_width / 2,
(@screen.get_height * 0.65).to_i
padding,
@message_title.get_height() + @message_title.get_y() + padding
)
end
# Actions pane elements
def add_time_left()
@time_left = new_text("", parent: @actions_pane)
set_time_left($delay)
@time_left.set_x(@actions_pane.get_width / 2 - @time_left.get_width / 2)
@time_left.set_y(padding)
end
def set_actions(actions)
@action_buttons ||= []
@action_buttons.each do |el|
el.del()
end
y_position = @time_left.get_y() + @time_left.get_height() + padding()
@action_buttons = actions.map do |action_pair|
label, action = action_pair
LVGUI::Button.new(@actions_pane).tap do |btn|
LVGUI.focus_group.add_obj(btn)
btn.glue_obj(true)
btn.set_label(label)
btn.set_y(y_position)
btn.event_handler = ->(event) do
case event
when LVGL::EVENT::CLICKED
action.call()
end
end
# For the next item
y_position = btn.get_y() + btn.get_height() + padding()
end
end
relayout()
end
# Layout helpers
def relayout()
unless horizontal?
@messages_pane.set_height(
@screen.get_height() - @title_bar.get_height() - @actions_pane.get_height()
)
# The actions pane has to be as high as required in vertical mode.
last_element = @actions_pane.get_children.reduce do |a, b|
if b
a_end = a.get_y() + a.get_height()
b_end = b.get_y() + b.get_height()
if a_end > b_end
a
else
b
end
else
a
end
end
@actions_pane.set_height(
last_element.get_y() + last_element.get_height() + padding
)
# Always push it as far down as possible!
@actions_pane.set_pos(0, @screen.get_height() - @actions_pane.get_height())
end
end
# Misc. helpers
# Creates a label with some useful defaults.
def new_text(text, parent: nil)
parent ||= @screen
el = ShadedText.new(parent)
el.set_long_mode(LVGL::LABEL_LONG::BREAK)
el.set_align(LVGL::LABEL_ALIGN::CENTER)
el.set_width((parent.get_width - 2*padding).to_i)
el.set_text(text)
el
end
# Updates the UI with the time left.
def set_time_left(value)
if value
@time_left.set_text("#{value} seconds left before crashing.")
else
@time_left.set_text("Select an option:")
end
end
def hide_actions()
@actions_pane.set_opa_scale_enable(true)
@actions_pane.set_opa_scale(0)
end
def get_pane_width()
if horizontal?
@screen.get_width() / 2
else
@screen.get_width()
end
end
def unit()
(if horizontal?
@screen.get_height()
else
@screen.get_width()
end) / 128
end
def padding()
2 * unit
end
def horizontal?()
@screen.get_height < @screen.get_width
end
end
# Create the UI
ui = UI.new
$ui = UI.new
# Run tasks once to "realize" the UI.
LVGL::Hacks::LVTask.handle_tasks
def run(*cmd)
$stderr.puts " $ " + cmd.join(" ")
system(*cmd) unless LVGL::Introspection.simulator?
end
def cleanup_and_exit()
$ui.hide_actions()
# Ensure the next scheduled handle_tasks will run
LVGL::Hacks::LVTask.handle_tasks
sleep(0.1)
# Refresh the UI one last time.
LVGL::Hacks::LVTask.handle_tasks
puts "Exiting error applet!"
puts "exit(#{$status})"
# Ensures console is flushed entirely.
$stdout.flush()
$stderr.flush()
# Ensures all kernel work is done before it kernel panics at exit.
sleep(0.1)
# Exit, which will crash the kernel.
exit $status
end
$ui.set_actions([[
"Cancel time-out", ->() do
$delay = nil
$ui.set_time_left(nil)
$ui.set_actions([
["Power off", ->() { run("poweroff") }],
["Kernel panic", ->() { $exit = true }],
*(RebootModes.options),
])
end
]])
start = Time.now
LVGUI.main_loop do
if $delay
elapsed = Time.now - start
left = $delay - elapsed
$ui.set_time_left(left.floor)
if elapsed >= $delay
$exit = true
end
end
# We're using `$exit` as a flag to ensure we exit after all event handlers
# have been completed.
# This is because we will not be able to force a render of the UI during
# an event handler.
cleanup_and_exit() if $exit
end
# Handles outputing the error and, more importantly, flushing the output.
# When simply existing, the system might not flush the output due to the
# kernel panic.
rescue => e
$stderr.puts("")
$stderr.puts("Unexpected error in error handler:")
$stderr.puts("")
$stderr.puts(e.inspect)
$stderr.puts("")
$stdout.flush()
$stderr.flush()
sleep(1)
exit 128
end

View File

@ -39,26 +39,15 @@ Tasks::Modules.new(*Configuration["kernel"]["modules"])
Tasks::go()
$logger.fatal("Tasks all ran, but we're still here...")
System.failure("did_not_switch", color: "ff0000")
System.failure(
"INIT_FAILED_SWITCH",
"Boot process failed to switch to stage-2",
"The stage-1 init did not detect any failure condition, but failed to switch to stage-2.\n\n" +
"It shouldn't happen, yet here we are.",
color: "ff0000"
)
rescue => e
System.sad_phone("765300", "Uncaught Exception", e.inspect)
3.times do
$logger.fatal("********************")
end
$logger.fatal("Handling exception")
$logger.fatal(e.inspect)
$logger.fatal("`init` will exit and the kernel will crash.")
$logger.fatal("********************")
# Leave some time for the $logger.fatals to flush before the kernel crashes.
sleep(1)
System.shell if System.respond_to?(:shell)
# Users with access to serial debug may prefer crashing to the bootloader.
# Though, crashing the kernel is *required* for console ramoops to be present.
if Configuration["boot"]["crashToBootloader"] then
System.run("reboot bootloader")
else
exit 99
end
# Then fail
System.failure("INIT_EXCEPTION", "Uncaught Exception", e.inspect, color: "765300", status: 99)
end

View File

@ -169,22 +169,64 @@ module System
end
end
def self.sad_phone(color, code, message)
begin
System.run(LOADER, "/applets/boot-error.mrb", color, code, message)
rescue CommandError => e
$logger.fatal(e.inspect)
def self.failure(code, title, message="(No details given)", color: "000000", delay: Configuration["boot"]["fail"]["delay"], status: 111)
Progress.kill()
# First print the error we're handling.
# The added asterisks seve to aid in finding it visually.
5.times do
$logger.fatal("********************************************")
end
$logger.fatal("")
$logger.fatal("********************************************")
$logger.fatal("* Fatal error in Mobile NixOS stage-1 init *")
$logger.fatal("********************************************")
$logger.fatal("")
$logger.fatal("#{code}: #{title}")
$logger.fatal("")
$logger.fatal(message)
$logger.fatal("")
5.times do
$logger.fatal("********************************************")
end
_flush_outputs()
File.write("/.error.json", {
code: code,
title: title,
color: color,
delay: delay,
message: message,
status: status,
}.to_json)
# Show the error handler applet.
begin
System.exec(LOADER, "/applets/boot-error.mrb", "/.error.json")
rescue => e
$logger.fatal("********************************************")
$logger.fatal("* Error handler failed to start *")
$logger.fatal("********************************************")
$logger.fatal(e.inspect)
$logger.fatal("********************************************")
end
# If we're here, things are broken beyond belief!
_flush_outputs()
# Drop down to a shell if possible.
shell if respond_to?(:shell)
# As in "command not found".
exit 127
end
def self.failure(code, message="(No details given)", color: "000000", delay: Configuration["boot"]["fail"]["delay"])
Progress.kill()
$logger.fatal("#{code}: #{message}")
sad_phone(color, code, message)
shell if respond_to?(:shell)
sleep(delay)
hard_reboot if Configuration["boot"]["fail"]["reboot"]
exit 111
# Flushes the outputs.
def self._flush_outputs()
# Flush both output
$stdout.flush
$stderr.flush
end
def self.hard_reboot()

View File

@ -92,7 +92,7 @@ module Tasks
"\n"
# Fail with a black backdrop, and force the message to stay up 60s
System.failure("hung_tasks", msg, color: "000000", delay: 60)
System.failure("TASKS_HANG_TIMEOUT", "Hung Tasks", msg, color: "000000", delay: 60)
end
# Don't burn the CPU if we're waiting on something...

View File

@ -77,7 +77,7 @@ class Tasks::SwitchRoot < SingletonTask
return path if path
end
System.failure("init_not_found", "Could not find init path for stage-2", color: "FF00FF")
System.failure("INIT_NOT_FOUND", "Stage-2 init not found", "Could not find init path for stage-2", color: "FF00FF")
end
# May pause the boot to allow the user to select a generation.

View File

@ -0,0 +1,16 @@
module RebootModes
Android = {
"recovery" => ["Reboot to recovery", ->() { run("reboot recovery") }],
"bootloader" => ["Reboot to bootloader", ->() { run("reboot bootloader") }],
}
def self.options()
[
["Reboot to system", ->() { run("reboot") }],
] +
Configuration["HAL"]["boot"]["rebootModes"].map do |identifier|
const, key = identifier.split(".", 2)
const_get(const)[key]
end
end
end

View File

@ -7,23 +7,6 @@ def run(*cmd)
system(*cmd) unless LVGL::Introspection.simulator?
end
module RebootModes
Android = {
"recovery" => ["Reboot to recovery", ->() { run("reboot recovery") }],
"bootloader" => ["Reboot to bootloader", ->() { run("reboot bootloader") }],
}
def self.options()
[
["Reboot to system", ->() { run("reboot") }],
] +
Configuration["HAL"]["boot"]["rebootModes"].map do |identifier|
const, key = identifier.split(".", 2)
const_get(const)[key]
end
end
end
module BootGUI
class MainWindow < LVGUI::BaseWindow
include LVGUI::ButtonPalette

View File

@ -5818,7 +5818,7 @@ CONFIG_KASAN_STACK=1
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_PANIC_TIMEOUT=1
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set

View File

@ -120,7 +120,7 @@ CONFIG_RD_LZMA=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_EXPERT=y
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set

View File

@ -138,7 +138,7 @@ CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HOTPLUG=y
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_EXPERT=y
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set

View File

@ -4386,7 +4386,7 @@ CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_PANIC_ON_RECURSIVE_FAULT=y
CONFIG_SCHED_DEBUG=y
# CONFIG_PANIC_ON_RT_THROTTLING is not set

View File

@ -4759,7 +4759,7 @@ CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_PANIC_ON_RECURSIVE_FAULT=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -4492,7 +4492,7 @@ CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_PANIC_ON_RECURSIVE_FAULT=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -4207,7 +4207,7 @@ CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_PANIC_ON_RECURSIVE_FAULT=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -7045,7 +7045,7 @@ CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_PANIC_TIMEOUT=1
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set

View File

@ -5055,7 +5055,7 @@ CONFIG_ARCH_HAS_KCOV=y
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -4965,7 +4965,7 @@ CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -4905,7 +4905,7 @@ CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -4178,7 +4178,7 @@ CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=5
CONFIG_PANIC_TIMEOUT=1
CONFIG_PANIC_ON_RECURSIVE_FAULT=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_PANIC_ON_SCHED_BUG is not set

View File

@ -0,0 +1,38 @@
`crash-before-switch-root`
==========================
What does this test?
--------------------
A simple known method to crash the system at boot.
This can be used to check changes to the errors handling.
Why is this scary?
------------------
Not scary at all. Only pretty useless in daily use!
How is success defined?
-----------------------
The boot process should proceed normally (splash, etc), but be
interrupted before switch root.
The crashing happens *after* mounting /mnt, but *before* switching root.
Running
-------
Assuming you are `cd`'d into the root of a Mobile NixOS checkout:
```
nix-build ./examples/testing/crash-before-switch-root && ./result
```
This will build for qemu-x86_64 by default.
As always, be mindful of your `NIX_PATH`.

View File

@ -0,0 +1,9 @@
{ config, lib, pkgs, ... }:
{
mobile.boot.stage-1.tasks = [ ./crash.rb ];
mobile.boot.stage-1.bootConfig = {
log.level = lib.mkForce "INFO";
};
}

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@ -0,0 +1,12 @@
class Tasks::Crash < SingletonTask
def initialize()
# Runs before SwitchRoot
Targets[:SwitchRoot].add_dependency(:Task, self)
# And after /mnt is available
add_dependency(:Mount, "/mnt")
end
def run()
raise "This is an exception from init!"
end
end

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@ -0,0 +1,11 @@
{ device ? "qemu-x86_64" }:
let
system-build = import ../../../. {
inherit device;
configuration = [ { imports = [
../../hello/configuration.nix
./configuration.nix
]; } ];
};
in
system-build.build.default

View File

@ -4,9 +4,6 @@ let
key-held = pkgs.runCommand "key-held.mrb" {} ''
${pkgs.buildPackages.mruby}/bin/mrbc -o $out ${../boot/applets}/key-held.rb
'';
boot-error = pkgs.runCommand "boot-error.mrb" {} ''
${pkgs.buildPackages.mruby}/bin/mrbc -o $out ${../boot/recovery-menu}/lib/*.rb ${../boot/error}/main.rb
'';
in
{
mobile.boot.stage-1.contents = with pkgs; [
@ -15,7 +12,7 @@ in
symlink = "/etc/logo.svg";
}
{
object = boot-error;
object = pkgs.mobile-nixos.stage-1.boot-error;
symlink = "/applets/boot-error.mrb";
}
{

View File

@ -28,8 +28,8 @@ in
config = {
mobile.boot.stage-1.contents = [
{
object = (builtins.path { path = ../artwork/sad-phone.svg; });
symlink = "/sad-phone.svg";
object = (builtins.path { path = ../artwork/sad.svg; });
symlink = "/sad.svg";
}
];
};

View File

@ -18,8 +18,8 @@ mrbgems.mkGem {
src = fetchFromGitHub {
repo = "mruby-lvgui";
owner = "mobile-nixos";
rev = "f1bb1dd9b2c5aa3d3df4fcc41ca706f426d182a8";
sha256 = "0ybjkzg743d21rn3q0vi0fa9zwp3ym9zw2q5ym24wc7gxdspjcjs";
rev = "07f6cce17a9819ec9c6da2adea012e3033cfd7b6";
sha256 = "0c47vv2slwh2n3996aw219likicpsmlk47ayx8xcl49kpmq674ns";
};
gemBuildInputs = [

View File

@ -101,6 +101,7 @@ in
stage-1 = {
script-loader = callPackage ../boot/script-loader {};
boot-recovery-menu = callPackage ../boot/recovery-menu {};
boot-error = callPackage ../boot/error {};
boot-splash = callPackage ../boot/splash {};
};