Re: [sqlsmith] Failed assertion in BecomeLockGroupLeader

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От Simon Riggs
Тема Re: [sqlsmith] Failed assertion in BecomeLockGroupLeader
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Msg-id CANP8+j+O7cfZdYAmZ=8D7a_j8ejZrEG0NZAj5sHj-2JRK-v+Gw@mail.gmail.com
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Ответ на [sqlsmith] Failed assertion in BecomeLockGroupLeader  (Andreas Seltenreich <seltenreich@gmx.de>)
Ответы Re: [sqlsmith] Failed assertion in BecomeLockGroupLeader  (Andreas Seltenreich <seltenreich@gmx.de>)
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On 29 April 2016 at 08:31, Andreas Seltenreich <seltenreich@gmx.de> wrote:
Hi,

tonight's sqlsmith run yielded another core dump:

TRAP: FailedAssertion("!(MyProc->lockGroupLeader == ((void *)0))", File: "proc.c", Line: 1787)

I couldn't identifiy a query for it though: debug_query_string is empty.
Additionally, the offending query was not reported in the error context
as it typically is for non-parallel executor crashes.

It's good that the input is fuzzed, but there needs to be a way to re-run identical fuzzing or a way to backtrack to find what broke. Not much point finding bugs we can't identify later.

--
Simon Riggs                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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