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

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Bruce Klein <brucek(at)gmail(dot)com>,pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: WSL (windows subsystem on linux) users will need to turn fsync off as of 11.2
Date: 2019-02-15 17:49:56
Message-ID: 8B8CCA3A-83AF-43BA-A773-9C4160BF866E@anarazel.de
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On February 15, 2019 9:44:50 AM PST, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>Andres Freund <andres(at)anarazel(dot)de> writes:
>> On February 15, 2019 9:13:10 AM PST, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
>wrote:
>>> I'm of the opinion that we shouldn't be panicking for
>sync_file_range
>>> failure, period.
>
>> With some flags it's strictly required, it does"eat"errors depending
>on the flags. So I'm not sure I understand?
>
>Really? The specification says that it starts I/O, not that it waits
>around for any to finish.

That depends on the flags you pass in. By memory I don't think it eats an error with our flags in recent kernels, but I'm not sure.

Andres

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