gh-151065: Copy fix for memory leak from mimalloc upstream by ZeroIntensity · Pull Request #151066 · python/cpython

ZeroIntensity · 2026-06-08T09:33:47Z

Applies microsoft/mimalloc@d7a72c4 to our copy of mimalloc.

Issue: mimalloc thread metadata leak #151065

bedevere-bot · 2026-06-08T09:52:18Z

🤖 New build scheduled with the buildbot fleet by @ZeroIntensity for commit d91dd5f 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F151066%2Fmerge

If you want to schedule another build, you need to add the 🔨 test-with-refleak-buildbots label again.

miss-islington-app · 2026-06-11T22:11:57Z

Thanks @ZeroIntensity for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15.
🐍🍒⛏🤖

bedevere-app · 2026-06-11T22:12:11Z

GH-151383 is a backport of this pull request to the 3.15 branch.

bedevere-app · 2026-06-11T22:12:17Z

GH-151384 is a backport of this pull request to the 3.14 branch.

bedevere-app · 2026-06-11T22:30:03Z

GH-151385 is a backport of this pull request to the 3.13 branch.

…-151066) (GH-151384) Applies microsoft/mimalloc@d7a72c4 to our copy of mimalloc. (cherry picked from commit 80f9467) Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

…-151066) (GH-151383) Applies microsoft/mimalloc@d7a72c4 to our copy of mimalloc. (cherry picked from commit 80f9467) Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

…-151066) (GH-151385) Applies microsoft/mimalloc@d7a72c4 to our copy of mimalloc. (cherry picked from commit 80f9467) Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

bedevere-bot · 2026-06-12T03:01:41Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Fedora Stable Clang 3.13 (tier-2) has failed when building commit 8754abc.

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/1456/builds/1121) and take a look at the build logs.
Check if the failure is related to this commit (8754abc) 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/1456/builds/1121

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

Click to see traceback logs

Note: switching to '8754abc358aff62feb37dd5d30f16eec06d9bbaa'.

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 8754abc358aff [3.13] gh-151065: Copy fix for memory leak from mimalloc upstream (GH-151066) (GH-151385)
Switched to and reset branch '3.13'

ar: unable to copy file 'libpython3.13d.a'; reason: No space left on device
make: *** [Makefile:1061: libpython3.13d.a] Error 1

bedevere-bot · 2026-06-12T03:03:04Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Fedora Stable Clang Installed 3.13 (tier-2) has failed when building commit 8754abc.

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/1387/builds/1121) and take a look at the build logs.
Check if the failure is related to this commit (8754abc) 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/1387/builds/1121

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

Click to see traceback logs

Note: switching to '8754abc358aff62feb37dd5d30f16eec06d9bbaa'.

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 8754abc358aff [3.13] gh-151065: Copy fix for memory leak from mimalloc upstream (GH-151066) (GH-151385)
Switched to and reset branch '3.13'

/usr/bin/ld: final link failed: No space left on device
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile:1690: Programs/_freeze_module] Error 1

chmod: cannot access 'target/': No such file or directory

bedevere-bot · 2026-06-12T06:10:55Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Fedora Stable Refleaks 3.13 (tier-2) has failed when building commit 8754abc.

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/1512/builds/1041) and take a look at the build logs.
Check if the failure is related to this commit (8754abc) 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/1512/builds/1041

Failed tests:

test_perf_profiler

Failed subtests:

test_python_calls_appear_in_the_stack_if_perf_activated - test.test_perf_profiler.TestPerfProfilerWithDwarf.test_python_calls_appear_in_the_stack_if_perf_activated
test_python_calls_do_not_appear_in_the_stack_if_perf_deactivated - test.test_perf_profiler.TestPerfProfilerWithDwarf.test_python_calls_do_not_appear_in_the_stack_if_perf_deactivated
test_large_content_length_truncated - test.test_httpservers.CGIHTTPServerTestCase.test_large_content_length_truncated

Test leaking resources:

test_httpservers: memory blocks

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

==

Click to see traceback logs

Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/test_perf_profiler.py", line 469, in test_python_calls_do_not_appear_in_the_stack_if_perf_deactivated
    self.assertEqual(stderr, "")
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^
AssertionError: 'Warning:\nProcessed 468 events and lost 1[34 chars]\n\n' != ''
- Warning:
- Processed 468 events and lost 1 chunks!
- 
- Check IO/CPU overload!
- 


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/test_httpservers.py", line 1028, in test_large_content_length_truncated
    res = self.request('/cgi-bin/file1.py', 'POST', b'x', headers)
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/test_httpservers.py", line 88, in request
    self.connection.request(method, uri, body, headers)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/http/client.py", line 1367, in request
    self._send_request(method, url, body, headers, encode_chunked)
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/http/client.py", line 1413, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/http/client.py", line 1362, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/http/client.py", line 1161, in _send_output
    self.send(chunk)
    ~~~~~~~~~^^^^^^^
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/http/client.py", line 1086, in send
    self.sock.sendall(data)
    ~~~~~~~~~~~~~~~~~^^^^^^
BrokenPipeError: [Errno 32] Broken pipe


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/test_perf_profiler.py", line 445, in test_python_calls_appear_in_the_stack_if_perf_activated
    self.assertIn(f"py::foo:{script}", stdout)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'py::foo:/tmp/test_python_x82jum7w/tmpddpbwp8g/perftest.py' not found in 'python 2877929 1149666.000444:          1 armv8_pmuv3_0/cycles/Pu: \n\t    ffff941c7480 _start+0x0 (/usr/lib/ld-linux-aarch64.so.1)\n\npython 2877929 1149666.000468:          1 armv8_pmuv3_0/cycles/Pu: \n\tffffd0942eef32e4 [unknown] ([unknown])\n\tffffd0942eef4060 [unknown] ([unknown])\n\tffffd0942d841690 [unknown] ([unknown])\n\t    ffff941c7480 _start+0x0 (/usr/lib/ld-linux-aarch64.so.1)\n\npython 2877929 1149666.001071:          1 armv8_pmuv3_0/cycles/Pu: \n\t          41db00 close@plt+0x0 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          510bb7 mi_prim_close+0xb (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          5188df _mi_prim_mem_init+0x33 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\npython 2877929 1149666.001093:        352 armv8_pmuv3_0/cycles/Pu: \n\t    ffff941bc65c _dl_runtime_resolve+0x0 (/usr/lib/ld-linux-aarch64.so.1)\n\npython 2877929 1149666.002062:       1045 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.002112:      54198 armv8_pmuv3_0/cycles/Pu: \n\t    ffff93fc00f0 _int_malloc+0x480 (/usr/lib64/libc.so.6)\n\t    ffff93fc0bb7 __libc_malloc2+0x133 (/usr/lib64/libc.so.6)\n\npython 2877929 1149666.003162:     118010 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.004335:    2771844 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.007451:    7803399 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.014878:   18625224 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.024363:   22702414 armv8_pmuv3_0/cycles/Pu: \n\t    ffff93fce524 __memset_zva64+0x24 (/usr/lib64/libc.so.6)\n\npython 2877929 1149666.037081:   23860708 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.046125:   25955787 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.055732:   28181731 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.065707:   29176946 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.075857:   29467536 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.087072:   29348295 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.097129:   29011445 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.107150:   29191944 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.117199:   29433172 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.127449:   29558840 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.137438:   29230566 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.147634:   29504102 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.157701:   29370148 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.167771:   29491116 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.177952:   29590474 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.188034:   29451500 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.198274:   29570620 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.208354:   29379518 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.218386:   29401399 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.228569:   29568967 armv8_pmuv3_0/cycles/Pu: \n\t    ffff93fb1068 pthread_getspecific@@GLIBC_2.34+0x28 (/usr/lib64/libc.so.6)\n\npython 2877929 1149666.238633:   29444012 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.248863:   29578379 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.258958:   29399743 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.269072:   29492913 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.279266:   29592316 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.289329:   29443819 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.299570:   29563294 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.309615:   29412217 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.319711:   29571273 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.329918:   29589694 armv8_pmuv3_0/cycles/Pu: \n\npython 2877929 1149666.340056:   29


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/test_perf_profiler.py", line 445, in test_python_calls_appear_in_the_stack_if_perf_activated
    self.assertIn(f"py::foo:{script}", stdout)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'py::foo:/tmp/test_python_kc_7cewv/tmpfc5wk3x5/perftest.py' not found in 'python 2892666 1149994.418388:          1 armv8_pmuv3_0/cycles/Pu: \n\t    ffff91bac480 _start+0x0 (/usr/lib/ld-linux-aarch64.so.1)\n\npython 2892666 1149994.418410:          1 armv8_pmuv3_0/cycles/Pu: \n\tffffd0942eef32e4 [unknown] ([unknown])\n\tffffd0942eef4060 [unknown] ([unknown])\n\tffffd0942d841690 [unknown] ([unknown])\n\t    ffff91bac480 _start+0x0 (/usr/lib/ld-linux-aarch64.so.1)\n\npython 2892666 1149994.419052:          1 armv8_pmuv3_0/cycles/Pu: \n\t          6399e0 _Py_InitVersion+0x24 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          664437 pycore_init_runtime+0x9b (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          66500b pyinit_config+0x2b (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          66c44b pyinit_core+0xcf (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          66c51b Py_InitializeFromConfig+0x8f (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          69d3ef pymain_init+0xe3 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          69d4b3 pymain_main+0xf (/var/lib/buildbot/worker/cstratak-fedora-stable-a
libc_start_main@@GLIBC_2.34+0x9b (/usr/lib64/libc.so.6)\n\t          41dd6f _start+0x2f (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\npython 2892666 1149994.420059:       1088 armv8_pmuv3_0/cycles/Pu: \n\t          41d6e8 pthread_getspecific@plt+0x8 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          68a913 PyThread_tss_get+0x13 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          6713ef PyGILState_Check+0x57 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          4f0c9b do_lookup+0xdf (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          4f9bfb insertdict+0x1cf (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\t          541a2f PyType_GenericAlloc+0x13 (/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/python)\n\npython 2892666 1149994.420108:      62090 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.421097:     133777 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.422417:    3147620 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.425897:    8865606 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.433508:   19288057 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.442800:   23429812 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.451810:   25110294 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.461275:   27471936 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.471134:   28909433 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.481188:   29465597 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.491334:   29602331 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.501421:   29536319 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.511529:   29590580 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.521631:   29584407 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.531906:   29616397 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.541870:   29111173 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.552069:   29454918 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.562106:   29240458 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.572123:   29347966 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.582289:   29525845 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.592324:   29362288 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.602400:   29493525 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.612503:   29547594 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.622591:   29529837 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.632712:   29568181 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.642783:   29503894 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.652933:   29573217 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.663038:   29421576 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.673149:   29473073 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.683246:   29487024 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.693331:   29478429 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.703396:   29500955 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.713519:   29588199 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.723951:   29541718 armv8_pmuv3_0/cycles/Pu: \n\t    ffff91991054 pthread_getspecific@@GLIBC_2.34+0x14 (/usr/lib64/libc.so.6)\n\npython 2892666 1149994.733752:   28678066 armv8_pmuv3_0/cycles/Pu: \n\t    ffff91991068 pthread_getspecific@@GLIBC_2.34+0x28 (/usr/lib64/libc.so.6)\n\npython 2892666 1149994.743923:   29334720 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.753987:   29443897 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 1149994.764136:   29426847 armv8_pmuv3_0/cycles/Pu: \n\npython 2892666 114999


Traceback (most recent call last):
  File "/var/lib/buildbot/worker/cstratak-fedora-stable-aarch64/3.13.cstratak-fedora-stable-aarch64.refleak/build/Lib/test/libregrtest/single.py", line 201, in _runtest_env_changed_exc
    return
ResourceWarning: unclosed <socket.socket fd=4, family=2, type=1, proto=6, laddr=('127.0.0.1', 54110)>

ZeroIntensity added 2 commits June 8, 2026 05:29

Copy fix from mimalloc upstream.

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Add blurb.

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bedevere-app Bot mentioned this pull request Jun 8, 2026

mimalloc thread metadata leak #151065

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ZeroIntensity added the 🔨 test-with-refleak-buildbots Test PR w/ refleak buildbots; report in status section label Jun 8, 2026

bedevere-bot removed the 🔨 test-with-refleak-buildbots Test PR w/ refleak buildbots; report in status section label Jun 8, 2026

ZeroIntensity marked this pull request as ready for review June 8, 2026 12:15

bedevere-app Bot added the awaiting core review label Jun 8, 2026

ZeroIntensity requested a review from DinoV June 8, 2026 12:15

DinoV approved these changes Jun 11, 2026

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bedevere-app Bot added awaiting merge and removed awaiting core review labels Jun 11, 2026

ZeroIntensity added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Jun 11, 2026

ZeroIntensity merged commit 80f9467 into python:main Jun 11, 2026
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ZeroIntensity deleted the mimalloc-leak branch June 11, 2026 22:11

bedevere-app Bot removed the awaiting merge label Jun 11, 2026

bedevere-app Bot removed the needs backport to 3.15 pre-release feature fixes, bugs and security fixes label Jun 11, 2026

bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Jun 11, 2026

bedevere-app Bot removed the needs backport to 3.13 bugs and security fixes label Jun 11, 2026

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gh-151065: Copy fix for memory leak from mimalloc upstream#151066

gh-151065: Copy fix for memory leak from mimalloc upstream#151066
ZeroIntensity merged 2 commits into
python:mainfrom
ZeroIntensity:mimalloc-leak

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ZeroIntensity commented Jun 8, 2026 •

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