gh-144418: Increase Android testbed emulator RAM to 4 GB by mhsmith · Pull Request #148054 · python/cpython

mhsmith · 2026-04-03T20:40:27Z

FixesAndroid testbed emulator needs more RAM #144418

mhsmith · 2026-04-03T23:37:25Z

!buildbot android

mhsmith · 2026-04-04T00:04:39Z

!buildbot aarch64 Android

mhsmith · 2026-04-04T00:45:02Z

Testing this has completely broken the aarch64 buildbot in a similar way to #142387, so I've taken it offline until I have a chance to fix it.

mhsmith · 2026-04-04T22:07:56Z

Specifically, I deleted the existing emulator, and it failed to recreate because it got stuck in a loop of "EGLContext creation failed" crashes. However, the problem isn't specific to this PR; it also happens on the main branch now that the old emulator is gone.

I'll fix this next week, and post updates in #142387, but I don't think it needs to hold up this PR. It works on GitHub Actions, which was its main purpose, and on the x86_64 buildbot. And I've tested it locally on an aarch64 macOS machine, including all of the following cases:

Emulator doesn't exist
Emulator exists and its RAM size needs to change
Emulator exists and its RAM size doesn't need to change

The RAM size can be displayed using the following command:

./android.py test --managed maxVersion -v -- -c 'print([line for line in open("/proc/meminfo") if "MemTotal" in line][0])'

freakboy3742

Annoying that it's needed, but this all makes sense, and works well in my testing.

miss-islington-app · 2026-04-06T05:48:04Z

Thanks @mhsmith for the PR, and @freakboy3742 for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

…nGH-148054) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM. (cherry picked from commit a95ee3a) Co-authored-by: Malcolm Smith <smith@chaquo.com>

bedevere-app · 2026-04-06T05:48:13Z

GH-148150 is a backport of this pull request to the 3.14 branch.

…nGH-148054) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM. (cherry picked from commit a95ee3a) Co-authored-by: Malcolm Smith <smith@chaquo.com>

bedevere-app · 2026-04-06T05:48:19Z

GH-148151 is a backport of this pull request to the 3.13 branch.

…48054) (#148150) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM. (cherry picked from commit a95ee3a) Co-authored-by: Malcolm Smith <smith@chaquo.com>

…48054) (#148151) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM. (cherry picked from commit a95ee3a) Co-authored-by: Malcolm Smith <smith@chaquo.com>

bedevere-bot · 2026-04-06T07:09:01Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 CentOS9 NoGIL Refleaks 3.x (tier-1) has failed when building commit a95ee3a.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1610/builds/3158) and take a look at the build logs.
Check if the failure is related to this commit (a95ee3a) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1610/builds/3158

Failed tests:

test_free_threading

Test leaking resources:

test_free_threading: file descriptors

Summary of the results of the build (if available):

==

Click to see traceback logs

remote: Enumerating objects: 12, done. remote: Counting objects: 16% (1/6) remote: Counting objects: 33% (2/6) remote: Counting objects: 50% (3/6) remote: Counting objects: 66% (4/6) remote: Counting objects: 83% (5/6) remote: Counting objects: 100% (6/6) remote: Counting objects: 100% (6/6), done. remote: Compressing objects: 20% (1/5) remote: Compressing objects: 40% (2/5) remote: Compressing objects: 60% (3/5) remote: Compressing objects: 80% (4/5) remote: Compressing objects: 100% (5/5) remote: Compressing objects: 100% (5/5), done. remote: Total 12 (delta 1), reused 6 (delta 1), pack-reused 6 (from 2) 
From https://github.com/python/cpython
* branch main -> FETCH_HEAD
Note: switching to 'a95ee3a21d97afdbe6bd2ce4cd8343a36cd13b02'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:
git switch -c <new-branch-name>
Or undo this operation with:
git switch -
Turn off this advice by setting config variable advice.detachedHead to false
HEAD is now at a95ee3a21d9 gh-144418: Increase Android testbed emulator RAM to 4 GB (#148054)
Switched to and reset branch 'main'
configure: WARNING: no system libmpdec found; falling back to pure-Python version for the decimal modulemake: *** [Makefile:2530: buildbottest] Error 2

bedevere-bot · 2026-04-06T08:50:42Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Fedora Stable Refleaks 3.x (tier-1) has failed when building commit a95ee3a.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/320/builds/3909) and take a look at the build logs.
Check if the failure is related to this commit (a95ee3a) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/320/builds/3909

Failed tests:

test.test_multiprocessing_fork.test_processes

Failed subtests:

test_interrupt - test.test_multiprocessing_fork.test_processes.WithProcessesTestProcess.test_interrupt

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last):
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/contextlib.py", line 85, in innerreturn func(*args, **kwds)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 597, in test_interrupt
exitcode =self._kill_process(multiprocessing.Process.interrupt)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/contextlib.py", line 85, in innerreturn func(*args, **kwds)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 578, in _kill_processself.assertEqual(join(), None)
~~~~^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 251, in __call__returnself.func(*args, **kwds)
~~~~~~~~~^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 156, in join
res =self._popen.wait(timeout)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/popen_fork.py", line 44, in waitreturnself.poll(os.WNOHANGif timeout ==0.0else0)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/popen_fork.py", line 28, in poll
pid, sts = os.waitpid(self.pid, flag)
~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 574, in handlerraiseRuntimeError('join took too long: %s'% p)
RuntimeError: join took too long: <Process name='Process-1710' pid=1591010 parent=1576709 started daemon>
Traceback (most recent call last):
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 320, in _bootstrapself.run()
~~~~~~~~^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 108, in runself._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 525, in _sleep_some_event
time.sleep(100)
~~~~~~~~~~^^^^^
KeyboardInterrupt
k
Traceback (most recent call last):
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 320, in _bootstrapself.run()
~~~~~~~~^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 108, in runself._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 524, in _sleep_some_event
event.set()
~~~~~~~~~^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/synchronize.py", line 349, in setwithself._cond:
^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/synchronize.py", line 247, in __exit__returnself._lock.__exit__(*args)
~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/synchronize.py", line 100, in __exit__returnself._semlock.__exit__(*args)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
KeyboardInterrupt
k
Traceback (most recent call last):
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/contextlib.py", line 85, in innerreturn func(*args, **kwds)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 597, in test_interrupt
exitcode =self._kill_process(multiprocessing.Process.interrupt)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/contextlib.py", line 85, in innerreturn func(*args, **kwds)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 578, in _kill_processself.assertEqual(join(), None)
~~~~^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 251, in __call__returnself.func(*args, **kwds)
~~~~~~~~~^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/process.py", line 156, in join
res =self._popen.wait(timeout)
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/popen_fork.py", line 44, in waitreturnself.poll(os.WNOHANGif timeout ==0.0else0)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/multiprocessing/popen_fork.py", line 28, in poll
pid, sts = os.waitpid(self.pid, flag)
~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/home/buildbot-worker/cstratak-fedora-stable-x86_64/3.x.cstratak-fedora-stable-x86_64.refleak/build/Lib/test/_test_multiprocessing.py", line 574, in handlerraiseRuntimeError('join took too long: %s'% p)
RuntimeError: join took too long: <Process name='Process-1' pid=1647801 parent=1647799 started daemon>

…n#148054) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM.

Increase Android emulator RAM to 4 GB
171560b

mhsmith added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Apr 3, 2026

bedevere-appBot mentioned this pull request Apr 3, 2026
Android testbed emulator needs more RAM #144418
Closed

mhsmith added 3 commits April 3, 2026 21:59

Debug CI failure
e417189

Add tmate
201ac9f

Respect XDG_CONFIG_HOME environment variable
b6c7985

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Run tmate unconditionally
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mhsmith added 2 commits April 4, 2026 01:06

Merge remote-tracking branch 'origin/main' into android-ram
8ab4175

Remove tmate
9cc1717

mhsmith marked this pull request as ready for review April 4, 2026 22:08

mhsmith requested a review from freakboy3742 as a code owner April 4, 2026 22:08

bedevere-appBot added the awaiting review label Apr 4, 2026

freakboy3742 approved these changes Apr 6, 2026
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bedevere-appBot added awaiting merge and removed awaiting review labels Apr 6, 2026

freakboy3742 merged commit a95ee3a into python:mainApr 6, 2026
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bedevere-appBot removed the awaiting merge label Apr 6, 2026

bedevere-appBot removed the needs backport to 3.14 bugs and security fixes label Apr 6, 2026

bedevere-appBot removed the needs backport to 3.13 bugs and security fixes label Apr 6, 2026

mhsmith mentioned this pull request Apr 7, 2026
Android buildbot failures after updating to API level 35 #142387
Closed

ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
pythongh-144418: Increase Android testbed emulator RAM to 4 GB (pytho…
ac526db
…n#148054) Pre-create the Android emulator image so that the the configuration can be modified to use 4GB of RAM.

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gh-144418: Increase Android testbed emulator RAM to 4 GB#148054
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