| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Maxim Orlov <orlovmg(at)gmail(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [BUG] FailedAssertion in SnapBuildPurgeOlderTxn |
| Date: | 2022-11-22 03:04:23 |
| Message-ID: | CAA4eK1JRp1WxS-c50hCNaE_HG53CG+MyYFvLLfiTWLRdEC0Dcg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Nov 22, 2022 at 2:22 AM Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> On 2022-11-21 15:47:12 +0300, Maxim Orlov wrote:
> > After some investigation, I think, the problem is in the snapbuild.c
> > (commit 272248a0c1b1, see [0]). We do allocate InitialRunningXacts
> > array in the context of builder->context, but for the time when we call
> > SnapBuildPurgeOlderTxn this context may be already free'd. Thus,
> > InitialRunningXacts array become array of 2139062143 (i.e. 0x7F7F7F7F)
> > values. This is not caused buildfarm to fail due to that code:
>
> Amit, that does indeed seem to be a problem...
>
I'll look into it.
--
With Regards,
Amit Kapila.
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