On Tue, Aug 25, 2015 at 2:21 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On 22 August 2015 at 15:14, Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> TransactionIdSetPageStatus() calls TransactionIdSetStatusBit(), which
>> writes an 8 byte variable (the lsn). That's not safe.
>>
>
> Agreed, thanks for spotting that.
>
> I see this as the biggest problem to overcome with this patch.
>
How about using 64bit atomics or spinlock to protect this variable?
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com