1722483 - mach bootstrap and mach android-emulator create emulator with too many lock files that won't start

Status: RESOLVED FIXED

(Firefox Build System :: Bootstrap Configuration, defect)

Description

[:Gijs (he/him)]

In particular, the ~/.mozbuild/android-device/avd/mozemulator-x86_64.avd/ directory has 2 lock files (hardware-qemu.ini.lock and multiinstance.lock), and trying to reun the emulator fails with "ERROR: Running multiple emulators with the same AVD is an experimental feature". Removing the entire directory and re-running mach bootstrap and mach android-emulator just reproduces the same problem. Manually removing both lockfiles and re-running only mach android-emulator appears to work.

Comment 1

[Rob Wu [:robwu]]

I can confirm that the described work-around works (macOS).

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox Build System::Bootstrap Configuration' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[[ex-Mozilla] Agi Sferro | :agi]

Attachment: Bug 1722483 - Rename avd_path -> avd_home_path.

Comment 4

[[ex-Mozilla] Agi Sferro | :agi]

Attachment: Bug 1722483 - Remove emulator lock files if present.

Looks like the emulator doesn't run the cleanup step when running in headless
mode, so we need to remove the lock files manually:

https://android.googlesource.com/platform/external/qemu/+/84416e78b496149f478d50b54adf1a34e1f98e2f/android/android-emu/android/console.cpp#4016

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1718341

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3f918abfc940
Rename avd_path -> avd_home_path. r=nalexander
https://hg.mozilla.org/integration/autoland/rev/f75d5bcab4f0
Remove emulator lock files if present. r=nalexander

Comment 7

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/3f918abfc940
https://hg.mozilla.org/mozilla-central/rev/f75d5bcab4f0