pitrou opened a new pull request, #47743: URL: https://github.com/apache/arrow/pull/47743
### Rationale for this change Valgrind would report memory leaks induced by protobuf initialization on library load, for example: ``` ==14628== 414 bytes in 16 blocks are possibly lost in loss record 22 of 26 ==14628== at 0x4914EFF: operator new(unsigned long) (vg_replace_malloc.c:487) ==14628== by 0x8D0B6CA: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char*>(char*, char*, std::forward_iterator_tag) [clone .isra.0] (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x8D33E62: google::protobuf::DescriptorPool::Tables::Tables() (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x8D340E2: google::protobuf::DescriptorPool::DescriptorPool(google::protobuf::DescriptorDatabase*, google::protobuf::DescriptorPool::ErrorCollector*) (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x8D341A2: google::protobuf::DescriptorPool::internal_generated_pool() (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x8D34277: google::protobuf::DescriptorPool::InternalAddGeneratedFile(void const*, int) (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x8D9C56F: google::protobuf::internal::AddDescriptorsRunner::AddDescriptorsRunner(google::protobuf::internal::DescriptorTable const*) (in /opt/conda/envs/arrow/lib/libprotobuf.so.25.3.0) ==14628== by 0x40D147D: call_init.part.0 (dl-init.c:70) ==14628== by 0x40D1567: call_init (dl-init.c:33) ==14628== by 0x40D1567: _dl_init (dl-init.c:117) ==14628== by 0x40EB2C9: ??? (in /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2) ``` This was triggered by the `libprotobuf` upgrade on conda-forge from 3.21.12 to 4.25.3. ### What changes are included in this PR? Add a Valgrind suppression for these leak reports, as there is probably not much we can do about them. ### Are these changes tested? Yes, by existing CI test. ### Are there any user-facing changes? No. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
