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Posted to issues@arrow.apache.org by "pitrou (via GitHub)" <gi...@apache.org> on 2026/01/06 16:31:09 UTC

[I] [C++] Deadlock in CSV AsyncThreadedTableReader destructor [arrow]

pitrou opened a new issue, #48741:
URL: https://github.com/apache/arrow/issues/48741

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   When reading a CSV file encounters an early error, and the `AsyncThreadedTableReader` is only kept alive through the chain of futures and their callbacks, the `~AsyncThreadedTableReader` destructor will be executed at the end of a `TaskGroup` task and try to wait for the `TaskGroup` itself for finish. This will obviously deadlock.
   
   This issue was discovered by OSS-Fuzz in https://issues.oss-fuzz.com/issues/467451924
   
   ### Component(s)
   
   C++


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Re: [I] [C++] Deadlock in CSV AsyncThreadedTableReader destructor [arrow]

Posted by "pitrou (via GitHub)" <gi...@apache.org>.
pitrou commented on issue #48741:
URL: https://github.com/apache/arrow/issues/48741#issuecomment-3724876805

   Issue resolved by pull request 48742
   https://github.com/apache/arrow/pull/48742


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Re: [I] [C++] Deadlock in CSV AsyncThreadedTableReader destructor [arrow]

Posted by "pitrou (via GitHub)" <gi...@apache.org>.
pitrou closed issue #48741: [C++] Deadlock in CSV AsyncThreadedTableReader destructor
URL: https://github.com/apache/arrow/issues/48741


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