tadeja commented on issue #49767: URL: https://github.com/apache/arrow/issues/49767#issuecomment-4547806382
Summary of findings: Ubuntu 24.04 apt mold version 2.30.0 has a non-determinism bug ([rui314/mold#1247](https://github.com/rui314/mold/issues/1247), fixed in [mold version 2.31.0](https://github.com/rui314/mold/releases/tag/v2.31.0)). In our case, mold's output sometimes placed gRPC-bundled proto descriptors into `.rodata` (read-only) while emitting `R_X86_64_RELATIVE` relocations against them, so ld-_.so couldn't apply those at startup. Full diagnostic trail on [fork debug branch](https://github.com/apache/arrow/compare/main...tadeja:arrow:49767-flight-sql-sigsegv): [libc6-dbg-symbolized backtraces](https://github.com/tadeja/arrow/commit/6dcdc026bd9ac1388dc5a3717e2662d1bddce0ba), [relocation-locator script](https://github.com/tadeja/arrow/commit/53eaa29d8271208b2b7184b8308bb5e0d8928d5a), and earlier workarounds ([-no-pie](https://github.com/tadeja/arrow/commit/54d2a30aeaf911ac71a29243faa0ba7a53bc72ac), [mold=OFF](https://github.com/tadeja/arrow/commit/6732ef45add327f0559133f7f90d9564b4eec996), [mold 2.31 from tarball](https://github.com/tadeja/arrow/commit/d51c91c1de86b2be69c432f46b468d4e11024fc5), [mold 2.37 from .deb](https://github.com/apache/arrow/pull/50033/changes/c2db4fac285e895ee240b9d59ad5883b6dfcdf3e)) before landing on @kou's suggestion [see pr changes](https://github.com/apache/arrow/pull/50033/changes)). [Ubuntu mold versions](https://repology.org/project/mold/versions) for Ubuntu 22.04: 1.0.3, Ubuntu 24.04: **2.30.0**, (and newest LTS Ubuntu 26.04: 2.40.4). <img width="225" height="250" alt="Ubuntu mold versions" src="https://github.com/user-attachments/assets/159fde76-e644-4e69-9c00-220534432eef"; /> Two PRs ready for review: #50033 to close this issue and mini debug #50034 (to address #49776) -- 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]
