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AV when engine shut down and cancels attachment that is waiting in lock manager. #6777

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AV when engine shut down and cancels attachment that is waiting in lock manager.#6777
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hvlad
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affect-version: 3.0.7affect-version: 4.0 RC 1component: enginefix-version: 3.0.8fix-version: 4.0.0priority: majortype: bug
@hvlad

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@hvlad
hvlad
opened on Apr 26, 2021

The crash dump was created by Pavel Zotov when run FBT (test for CORE-3323).
While I can't reproduce it, stack trace clearly shows the reason - attempt to dereference att_wait_lock that was cleared by another thread.

Stack trace:
firebird.20210423_082914.WI-V4_0_0_2437.zip

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affect-version: 3.0.7affect-version: 4.0 RC 1component: enginefix-version: 3.0.8fix-version: 4.0.0priority: majortype: bug

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