Re: atomic pin/unpin causing errors

Hi Jeff,

On 2016-04-29 10:38:55 -0700, Jeff Janes wrote:
> I've bisected the errors I was seeing, discussed in
> http://www.postgresql.org/message-id/CAMkU=1xQEhC0Ok4d+tkjFQ1nvUhO37PYRKhJP6Q8oxifMx7OwA@mail.gmail.com
>
> It look like they first appear in:
>
> commit 48354581a49c30f5757c203415aa8412d85b0f70
> Author: Andres Freund <andres(at)anarazel(dot)de>
> Date: Sun Apr 10 20:12:32 2016 -0700
>
> Allow Pin/UnpinBuffer to operate in a lockfree manner.
>
>
> I get the errors:
>
> ERROR: attempted to delete invisible tuple
> STATEMENT: update foo set count=count+1,text_array=$1 where text_array @> $2
>
> And also:
>
> ERROR: unexpected chunk number 1 (expected 2) for toast value
> 85223889 in pg_toast_16424
> STATEMENT: update foo set count=count+1 where text_array @> $1

Hm. I appear to have trouble reproducing this issue (continuing to try)
on master as of 8826d8507. Is there any chance you could package up a
data directory after the issue hit?

> (This was all run using Teodor's test-enabling patch
> gin_alone_cleanup-4.patch, so as not to change horses in midstream.
> Now that a version of that patch has been committed, I will try to
> repeat this in HEAD)

Any news on that front?

Greetings,

Andres Freund