Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Check stack size in Parser #59697

Merged
merged 16 commits into from
Feb 19, 2024
Merged

Check stack size in Parser #59697

merged 16 commits into from
Feb 19, 2024

Conversation

alexey-milovidov
Copy link
Member

Changelog category (leave one):

  • Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Check for stack overflow in parsers even if the user misconfigured the max_parser_depth setting to a very high value. This closes #59622.

@alexey-milovidov alexey-milovidov marked this pull request as draft February 7, 2024 03:23
@robot-clickhouse robot-clickhouse added the pr-improvement Pull request with some product improvements label Feb 7, 2024
@robot-clickhouse
Copy link
Member

robot-clickhouse commented Feb 7, 2024

This is an automated comment for commit 1f88206 with description of existing statuses. It's updated for the latest CI running

❌ Click here to open a full report in a separate page

Successful checks
Check nameDescriptionStatus
AST fuzzerRuns randomly generated queries to catch program errors. The build type is optionally given in parenthesis. If it fails, ask a maintainer for help✅ success
ClickBenchRuns [ClickBench](https://github.com/ClickHouse/ClickBench/) with instant-attach table✅ success
Compatibility checkChecks that clickhouse binary runs on distributions with old libc versions. If it fails, ask a maintainer for help✅ success
Docker keeper imageThe check to build and optionally push the mentioned image to docker hub✅ success
Docker server imageThe check to build and optionally push the mentioned image to docker hub✅ success
Docs checkBuilds and tests the documentation✅ success
Fast testNormally this is the first check that is ran for a PR. It builds ClickHouse and runs most of stateless functional tests, omitting some. If it fails, further checks are not started until it is fixed. Look at the report to see which tests fail, then reproduce the failure locally as described here✅ success
Flaky testsChecks if new added or modified tests are flaky by running them repeatedly, in parallel, with more randomization. Functional tests are run 100 times with address sanitizer, and additional randomization of thread scheduling. Integrational tests are run up to 10 times. If at least once a new test has failed, or was too long, this check will be red. We don't allow flaky tests, read the doc✅ success
Install packagesChecks that the built packages are installable in a clear environment✅ success
Integration testsThe integration tests report. In parenthesis the package type is given, and in square brackets are the optional part/total tests✅ success
Performance ComparisonMeasure changes in query performance. The performance test report is described in detail here. In square brackets are the optional part/total tests✅ success
SQLTestThere's no description for the check yet, please add it to tests/ci/ci_config.py:CHECK_DESCRIPTIONS✅ success
SQLancerFuzzing tests that detect logical bugs with SQLancer tool✅ success
SqllogicRun clickhouse on the sqllogic test set against sqlite and checks that all statements are passed✅ success
Stateful testsRuns stateful functional tests for ClickHouse binaries built in various configurations -- release, debug, with sanitizers, etc✅ success
Style checkRuns a set of checks to keep the code style clean. If some of tests failed, see the related log from the report✅ success
Unit testsRuns the unit tests for different release types✅ success
Upgrade checkRuns stress tests on server version from last release and then tries to upgrade it to the version from the PR. It checks if the new server can successfully startup without any errors, crashes or sanitizer asserts✅ success
Check nameDescriptionStatus
A SyncThere's no description for the check yet, please add it to tests/ci/ci_config.py:CHECK_DESCRIPTIONS❌ failure
CI runningA meta-check that indicates the running CI. Normally, it's in success or pending state. The failed status indicates some problems with the PR⏳ pending
ClickHouse build checkBuilds ClickHouse in various configurations for use in further steps. You have to fix the builds that fail. Build logs often has enough information to fix the error, but you might have to reproduce the failure locally. The cmake options can be found in the build log, grepping for cmake. Use these options and follow the general build process⏳ pending
Mergeable CheckChecks if all other necessary checks are successful❌ failure
Stateless testsRuns stateless functional tests for ClickHouse binaries built in various configurations -- release, debug, with sanitizers, etc❌ failure
Stress testRuns stateless functional tests concurrently from several clients to detect concurrency-related errors❌ failure

@alexey-milovidov alexey-milovidov marked this pull request as ready for review February 7, 2024 03:32
@Algunenano Algunenano self-assigned this Feb 7, 2024
* and a power of two to simplify the division.
*/
#ifdef USE_MUSL
static constexpr uint32_t check_frequency = 128;
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Interesting. Is MUSL stack smaller?

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yes, the first run made the Fast test crashing, and the Fast test uses Musl (the intention is to migrate to it eventually and keep it more or less supported before that time). I could set the frequency to 128 for a normal build as well, but I'm afraid it is too frequent.

@Algunenano
Copy link
Member

The CI is not happy, although it's not obvious why:

2024.02.08 17:33:03.280940 [ 23274 ] {a509dd05-b9d9-42f4-959f-6e2b213dc86a} <Fatal> : Logical error: 'Logical error: frame address is greater than stack begin address'.

@alexey-milovidov
Copy link
Member Author

It happens in coroutines.

@alexey-milovidov alexey-milovidov merged commit a10edde into master Feb 19, 2024
175 of 199 checks passed
@alexey-milovidov alexey-milovidov deleted the check-stack-size-in-parser branch February 19, 2024 10:33
@robot-ch-test-poll4 robot-ch-test-poll4 added the pr-synced-to-cloud The PR is synced to the cloud repo label Feb 19, 2024
@antonio2368
Copy link
Member

Oh no this breaks 00984_parser_stack_overflow.
https://s3.amazonaws.com/clickhouse-test-reports/59697/aa004cabffdc5a7a40b0090f3540da0464c0924b/stateless_tests__tsan__[1_5].html

The reason is inconsistent exception, sometimes it will be Stack size too large. Stack address... because of the new check

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
pr-improvement Pull request with some product improvements pr-synced-to-cloud The PR is synced to the cloud repo
Projects
None yet
Development

Successfully merging this pull request may close these issues.

Setting max_parser_depth too high can cause Segmentation fault
5 participants