zimmermq opened a new pull request, #910: URL: https://github.com/apache/mina-sshd/pull/910
Fixes #909. When a write started under the read lock in `writeOrEnqueue()` fails inline, the session close re-enters KexOutputHandler.shutdown()` → `updateState()`, which tries to take the write lock on the same thread — an illegal read-to-write upgrade that self-deadlocks. Fix: in `shutdown()`, when the current thread already holds the read lock (`getReadHoldCount() > 0`), update the state without acquiring the write lock. The read lock already excludes writers, so it stays consistent; KEX write-ordering is unchanged. Includes a deterministic regression test (hangs without the fix, passes with it). -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
