Bump tornado from 6.0.4 to 6.3.2 in /extra/libcbor/doc/source - #1
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Bump tornado from 6.0.4 to 6.3.2 in /extra/libcbor/doc/source#1dependabot[bot] wants to merge 1 commit into
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Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.0.4 to 6.3.2. - [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst) - [Commits](tornadoweb/tornado@v6.0.4...v6.3.2) --- updated-dependencies: - dependency-name: tornado dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>
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August 14, 2023 22:25
shanth96
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…tion fault https://perconadev.atlassian.net/browse/PS-9719 Problem ------- When changing binlog_transaction_dependency_tracking in high load workload, MySQL can get a segmentation fault. Analysis -------- Address sanitizer runs exposed the heap-use-after-free. READ of size 8 at 0x6030002c3298 thread T52 #0 _M_hash_code() #1 _M_bucket_index() .. #7 std::unordered_map::insert() #8 Writeset_trx_dependency_tracker::get_dependency() #9 Transaction_dependency_tracker::get_dependency() #10 MYSQL_BIN_LOG::write_transaction() #11 binlog_cache_data::flush() #12 binlog_cache_mngr::flush() #13 MYSQL_BIN_LOG::flush_thread_caches() #14 MYSQL_BIN_LOG::process_flush_stage_queue() #15 MYSQL_BIN_LOG::ordered_commit() #16 MYSQL_BIN_LOG::commit() freed by thread T49 here: #0 operator delete() ... #7 std::unordered_map::clear() #8 Writeset_trx_dependency_tracker::rotate(long) #9 Transaction_dependency_tracker::tracking_mode_changed() #10 update_binlog_transaction_dependency_tracking #11 sys_var::update() - The Writeset_trx_dependency_tracker uses std::unordered_map for storing depdendency information. - When a transaction is committing, the committing thread inserts the dependency information to this map in through get_dependency(). - When the tracking mode is changed, then the map is cleared by Writeset_trx_dependency_tracker::rotate(). Note that no lock/mutex is taken during the rotation. - As the rotate() and get_dependency() operations can be concurrently called from different threads and there is no mutex protection to handle it, it can result in segmentation fault when the get_dependency() tries to insert to the already deleted map. Solution -------- Use std::shared_ptr with atomic load/store for safer dependency tracker map rotation. - Replaced direct usage of of map with std::shared_ptr in the Writeset_trx_dependency_tracker class. - Modified the implementation of rotate() to used std::atomic_load and std::atomic_store to enable thread-safe reads and rotations. With the new solution the rotation happens in an atomic manner. So that transactions calling get_dependency() always use the object returned by shared_ptr. So, even if rotate() happens in parallel, the memory won't be freed until all readers are done.
ben-thul
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https://perconadev.atlassian.net/browse/PS-10049 Fixed memory leak in 'NdbTimestamp-t' unit test detected by ASan. ================================================================= ==3324130==ERROR: LeakSanitizer: detected memory leaks Direct leak of 67 byte(s) in 3 object(s) allocated from: #0 0x5555ab78bc5a in strdup (/home/yura/ws/percona-server-8.4-build-asan_clang20/runtime_output_directory/NdbTimestamp-t+0xbdc5a) (BuildId: 9c5a51c07dd925cf13b2f9408597355a524793bc) #1 0x5555ab7eb685 in test_TZ(int) /home/yura/ws/percona-server-8.4/storage/ndb/src/common/portlib/NdbTimestamp.cpp:516:10 #2 0x5555ab7eb126 in main /home/yura/ws/percona-server-8.4/storage/ndb/src/common/portlib/NdbTimestamp.cpp:576:53 #3 0x7f0596ae4d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 SUMMARY: AddressSanitizer: 67 byte(s) leaked in 3 allocation(s).
ben-thul
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…loading`
On some platforms we see the following issue:
```
CURRENT_TEST: component_keyring_file.dynamic_loading /usr/bin/ld: /tmp/ccg7pao0.o: in function main::{lambda(void*)#1}::operator()(void*) const': dlopen_checker.cpp:(.text+0x1f): undefined reference to dlclose' /usr/bin/ld: /tmp/ccg7pao0.o: in function main': dlopen_checker.cpp:(.text+0xa9): undefined reference to dlopen' /usr/bin/ld: dlopen_checker.cpp:(.text+0xf8): undefined reference to dlerror' collect2: error: ld returned 1 exit status mysqltest: At line 20: Command "g++ -std=c++17 -ldl -o $dlopen_checker_binary $dlopen_checker_source" failed.
```
This error occurs because the linker flag -ldl (for linking against the dynamic loading library, libdl) is placed before the source file instead of after it in your g++ command.
In GCC and Clang, order matters — libraries must come after the objects or source files that reference them.
ben-thul
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…loading`
On some platforms we see the following issue:
```
CURRENT_TEST: component_keyring_file.dynamic_loading /usr/bin/ld: /tmp/ccg7pao0.o: in function main::{lambda(void*)#1}::operator()(void*) const': dlopen_checker.cpp:(.text+0x1f): undefined reference to dlclose' /usr/bin/ld: /tmp/ccg7pao0.o: in function main': dlopen_checker.cpp:(.text+0xa9): undefined reference to dlopen' /usr/bin/ld: dlopen_checker.cpp:(.text+0xf8): undefined reference to dlerror' collect2: error: ld returned 1 exit status mysqltest: At line 20: Command "g++ -std=c++17 -ldl -o $dlopen_checker_binary $dlopen_checker_source" failed.
```
This error occurs because the linker flag -ldl (for linking against the dynamic loading library, libdl) is placed before the source file instead of after it in your g++ command.
In GCC and Clang, order matters — libraries must come after the objects or source files that reference them.
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Bumps tornado from 6.0.4 to 6.3.2.
Changelog
Sourced from tornado's changelog.
... (truncated)
Commits
34f5c1cVersion 6.3.232ad07cweb: Fix an open redirect in StaticFileHandlere0fa53eMerge pull request #3257 from bdarnell/build-workflow-wstest-warningf5a1d5cci: Only run pypi actions from the main repo1849ef6test: Close a websocket client that causes occasional test failuresfcb09ebMerge pull request #3256 from bdarnell/build-workflow-qemuc3d50f4ci: Update setup-qemu-action version419838bMerge pull request #3255 from bdarnell/bump-version-6.3.1cd5b9fcBump version to 6.3.12453344Merge pull request #3254 from bdarnell/fix-set-cookie-caseDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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