Re: WSL (windows subsystem on linux) users will need to turn fsync off as of 11.2

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________________________________
From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Sent: Tuesday, February 19, 2019 5:31:26 AM
To: James Sewell
Cc: Andres Freund; Ravi Krishna; pgsql-generallists.postgresql.org
Subject: Re: WSL (windows subsystem on linux) users will need to turn fsync off as of 11.2

On Tue, Feb 19, 2019 at 5:16 PM James Sewell <james(dot)sewell(at)jirotech(dot)com> wrote:
>> Here's a starter patch that shows one of the approaches discussed. It
>> gets WSL users to a better place than they were before, by suppressing
>> further warnings after the first one.
>
> This wasn't quite right, updated to check erro for ENOSYS (not rc)
>
> This compiles and stops the panic on WSL (with a single warning).
>
> I haven't tested if a version compiled on Linux will behave the same way - but based on the error messages in the top post it looks like the behavior is the same.

Great. Thanks for testing, and for the fix! Well that all sounds
like good news: it corrects the behaviour from 11.2, and also improves
on the previous behaviour which I'd have accepted as a bug if anyone
had reported it. So the next problem is that we don't have a
consensus on whether this is the right approach, so I don't feel like
I can commit it yet. Does any want to make another concrete proposal?

--
Thomas Munro
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