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Subject: Re: symbolic links on Paragon Linux File systems
To: cygwin@cygwin.com
References: <1823593702.5343751.1545034298027.ref@mail.yahoo.com> <1823593702.5343751.1545034298027@mail.yahoo.com> <20181217093428.GQ28727@calimero.vinschen.de> <20181217165741.GB28727@calimero.vinschen.de>
From: Stefan Baur <X2Go-ML-1@baur-itcs.de>
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Date: Mon, 17 Dec 2018 19:45:26 +0100
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From: Stefan Baur <X2Go-ML-1@baur-itcs.de>
To: cygwin@cygwin.com
Message-ID: <1d8d7c85-c88e-2404-db25-cc095f966247@baur-itcs.de>
Subject: Re: symbolic links on Paragon Linux File systems
References: <1823593702.5343751.1545034298027.ref@mail.yahoo.com>
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 <20181217093428.GQ28727@calimero.vinschen.de>
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Am 17.12.18 um 17:57 schrieb Corinna Vinschen:
> As a sidenote, the OSS project Ext2Fsd handles symlinks transparently
> via standard Windows functions.  With "CYGWIN=3Dwinsymlinks:native" you
> can generate real ext4 symlinks transparently.  Even the good old Cygwin
> symlink works on Cygwin without programmatic intervention, albeit those
> won't be recognized as symlinks by Linux of course.  Unfortunately
> Ext2Fsd didn't learn to handle ext4 with the 64bit FS option set yet.
> 64bit is default for quite some time.

Hmm, their website says:

> *Ext2Fsd 0.69 released !*
> November 2nd, 2017
>=20
> WARNINGS:
>=20
>     Don't use Ext2Fsd 0.68 or earlier versions with latest Ubuntu or
>     Debian systems. Ext2Fsd 0.68 cannot process EXT4 with 64-BIT mode
>     enabled, then it could corrupt your data. Very sorry for this
>     disaster issue, I'm working on an improvement.
>=20
> Features implemented and bugfix:
>=20
>     1, FIXME: superblock corruption of EXT4 volumes with 64BIT mode enabl=
ed=20
>     2, FIXME: possible corruption by race conditions in buffer-head reape=
ring
>     3, FIXME: possible deadlock issues (when flushing) caused by BCB locks
>     4, FIXME: miscellaneous minor updates of Ext2Fsd code base

Sooo ... if the warning only applies for 0.68 and earlier versions,
while the current version is 0.69, as the headline says, I'd be tempted
to believe they fixed that issue.

-Stefan

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