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gh-158522: Fix truncated stack for a task whose coroutine recurses - #158526
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Some non-blocking nits; LGreatTM |
Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com>
…6j7tU.rst Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com>
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The frame-address boundary fixes recursive coroutine stacks without changing the debug-offset layout. The regression reproduces the one-frame result without the fix and returns all four frames with it. I also tested this merged with current main: test_external_inspection and test_profiling pass (544 tests, 9 skipped).
The line-length nit is already addressed in the latest commit. LGTM.
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GH-158870 is a backport of this pull request to the 3.15 branch. |
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…coroutine recurses (pythonGH-158526) (python#158870)" This reverts commit a904b39.
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…58882) * [3.15] gh-153364: Make frame, coroutine, and task-waiter chain walks iterative and bounded (GH-153365) (#158813) gh-153364: Make frame, coroutine, and task-waiter chain walks iterative and bounded (GH-153365) * let me declare single limit * use our new limit in process_frame_chain() * add it in parse_async_frame_chain() * parse_coro_chain() * NEWS * async in the message? * test * no race * process_task_awaited_by * process_task_awaited_by limit test * NEWS * MAX_TASK_WAITER_CHAIN_DEPTH * TASK_WAITER_CHAIN_DEPTH in test * TASK_WAITER_CHAIN_DEPTH 256 * prevent the drift with the comment * better naming, better style * MAX_TASK_WAITER_CHAIN_DEPTH comment * task-waiter iterative bfs walk * iterative coro-walk * nicer news * 1 << 14 * comment * unused read_Py_ssize_t * fix tombstones * simplify * correct msg * better test * news for tombstones * left-over from when testing buggy version * redundant new line (cherry picked from commit e0861c6) Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com> (cherry picked from commit 9e401cf) * [3.15] gh-155811: Add a seqcount to `gc_stats` to prevent torn reads (GH-155828) (#158829) * update_seq * no need for XCHGL, MOVL is enough? * gh-155811: Retry an inconsistent GC snapshot once --------- (cherry picked from commit 5fecd44) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com> (cherry picked from commit 0281240) * [3.15] gh-151292: `_remote_debugging`: Do not corrupt the binary file when hitting `OverflowError` (GH-152892) (#158830) gh-151292: `_remote_debugging`: Do not corrupt the binary file when hitting `OverflowError` (GH-152892) * the kolektor * test * better test * news * =Q, move const to the base, not self.running * gh-151292: Track binary writer finalization state --------- (cherry picked from commit f839c06) Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com> Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> (cherry picked from commit 8a7c23f) * [3.15] gh-158583: Fix uninitialized memory read in bytes.fromhex() (GH-158584) (#158691) gh-158583: Fix uninitialized memory read in bytes.fromhex() (GH-158584) (cherry picked from commit 9d22a53) Co-authored-by: Victor Stinner <vstinner@python.org> (cherry picked from commit 4f7af46) * [3.15] gh-154194: Degrade frames in Tachyon instead of failing the sample (GH-154195) (#158831) * gh-154194: Degrade frames in Tachyon instead of failing the sample (#154195) * degrade gracefully * news * better NEWS wording * do not raise on MAX_REMOTE_STR_READ * bye MAX_REMOTE_STR_READ * fix -m asyncio ps|pstree * test truncation and linetable sentinel * simpler * simpler * redundant now * respect #157790 in the news --------- Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> (cherry picked from commit 7d25916) * Preserve the stable ABI when creating fallback frame names --------- Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com> (cherry picked from commit c27f494) * [3.15] Add MSan to CI (GH-158625) (#158832) Run a job that the test suite with MSan to the CI (#158625) * Run the test suite with MSan in CI * Additional fixes * Add `_Py_MSAN_UNPOISON_STRING` * Apply Victor's suggestions * Apply Victor's suggestions --------- (cherry picked from commit b93fb19) Co-authored-by: Stan Ulbrych <stan@python.org> Co-authored-by: Victor Stinner <victor.stinner@gmail.com> (cherry picked from commit 1bc78de) * [3.15] gh-156810: Write the profiler's collapsed-stack export as UTF-8 (GH-156811) (#156814) gh-156810: Write the profiler's collapsed-stack export as UTF-8 (GH-156811) (cherry picked from commit c3706f4) Co-authored-by: tonghuaroot (童话) <tonghuaroot@gmail.com> (cherry picked from commit fce28da) * [3.15] gh-158552: Wait for Windows threads to suspend before blocking sampling (GH-158802) (#158845) gh-158552: Wait for Windows threads to suspend before blocking sampling (GH-158802) * gh-158552: Wait for Windows threads to suspend before blocking sampling * Use a named Windows thread enumeration status constant (cherry picked from commit 1643525) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> (cherry picked from commit 31288da) * [3.15] gh-152721: Fix quadratic RLE replay time in the profiling binary reader (GH-152722) (#158850) Backport of GH-152722. Co-authored-by: tonghuaroot <tonghuaroot@gmail.com> (cherry picked from commit ebaca2a) * [3.15] gh-156545: Fix flamegraph export RecursionError on deeply recursive programs (GH-156546) (#158851) Backport of GH-156546. Co-authored-by: tonghuaroot (童话) <tonghuaroot@gmail.com> (cherry picked from commit 0ac7217) * [3.15] gh-158540: Add the profiled script's directory to sys.path (GH-158548) (#158844) gh-158540: Add the profiled script's directory to sys.path (GH-158548) * gh-158540: Add the profiled script's directory to sys.path When a script is profiled with ``python -m profiling.sampling run script.py`` from another directory, the script cannot import modules placed next to it, because ``_sync_coordinator._execute_script()`` executes it with the working directory (added by ``_setup_environment()`` for the module case) as ``sys.path[0]`` instead of the script's own directory. Make the script's directory importable in ``_execute_script()``, matching the behavior of ``python script.py``. Add a regression test that runs the coordinator on a script importing a sibling module. * Update _sync_coordinator.py Comment simplified * gh-158540: Resolve symlinks when adding the script directory to sys.path ``python script.py`` resolves symlinks when computing ``sys.path[0]``, so a script reached through a symlink (``link.py -> sub/where.py``) imports modules from the real script's directory. Apply ``os.path.realpath()`` before taking the directory name, and make sure the result is placed at the front of ``sys.path`` even if it was already listed. Add a regression test for a symlinked script. --------- (cherry picked from commit 3f02aab) Co-authored-by: he_tao <53343436+hetaozdh@users.noreply.github.com> Co-authored-by: Eduardo Villalpando Mello <eduardo.villalpando.mello@gmail.com> (cherry picked from commit f52d831) * [3.15] gh-153838: Skip non-regular source files in the heatmap exporter (GH-153839) (#158853) Backport of GH-153839. Co-authored-by: tonghuaroot <tonghuaroot@gmail.com> (cherry picked from commit 48998df) * [3.15] gh-158539: Fix exception mode missing handlers in generators/coroutines (GH-158581) (#158852) * [3.15] gh-158539: Fix exception mode missing handlers in generators/coroutines (GH-158581) Backport of GH-158581. Co-authored-by: LucasZhou <donghao.zhou@outlook.com> * [3.15] gh-158539: Use portable static assertion messages * [3.15] gh-158539: Keep layout assertions with debug-offset validation * [3.15] gh-158539: Use the platform guard for in-process inspection tests --------- Co-authored-by: LucasZhou <donghao.zhou@outlook.com> (cherry picked from commit d625ecb) * [3.15] gh-158522: Fix truncated stack for a task whose coroutine recurses (GH-158526) (#158870) Co-authored-by: Timofei Ivankov <128279579+deadlovelll@users.noreply.github.com> (cherry picked from commit a904b39) * gh-156545, gh-158539: Fix deep flamegraph export on small C stacks and macOS runtime lookup (#158874) (cherry picked from commit 114de19) Include the C-stack test helper from main, introduced by ce5ae29, which the regression test requires but 3.15 does not yet provide. --------- Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Co-authored-by: Maurycy Pawłowski-Wieroński <maurycy@maurycy.com> Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com> Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Stan Ulbrych <stan@python.org> Co-authored-by: Victor Stinner <victor.stinner@gmail.com> Co-authored-by: tonghuaroot (童话) <tonghuaroot@gmail.com> Co-authored-by: he_tao <53343436+hetaozdh@users.noreply.github.com> Co-authored-by: Eduardo Villalpando Mello <eduardo.villalpando.mello@gmail.com> Co-authored-by: LucasZhou <donghao.zhou@outlook.com> Co-authored-by: Timofei Ivankov <128279579+deadlovelll@users.noreply.github.com>
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Fix truncated stack for a task whose coroutine recurses
For more details see gh-158522