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Re: [sqlsmith] crashes in RestoreSnapshot on hot standby

From: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [sqlsmith] crashes in RestoreSnapshot on hot standby
Date: 2016-07-01 05:41:20
Message-ID: 87k2h5synz.fsf@credativ.de
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Amit Kapila writes:
> On Fri, Jul 1, 2016 at 9:38 AM, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> wrote:
>> Or maybe just like this?
>>
>> - snapshot->subxip = snapshot->xip + serialized_snapshot->xcnt;
>> + snapshot->subxip = ((TransactionId *) (snapshot + 1)) +
>> + serialized_snapshot->xcnt;
>>
>
> This way it looks better to me. Thanks for the patch.

I no longer see these crashes when testing with the patch applied.

thanks,
Andreas

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