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Message-ID: <ZHZxdz6TSkf7aBJD@bombadil.infradead.org>
Date:   Tue, 30 May 2023 14:58:15 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Sedat Dilek <sedat.dilek@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Johan Hovold <johan@...nel.org>, linux-kernel@...r.kernel.org,
        linux-cxl@...r.kernel.org,
        Adam Manzanares <a.manzanares@...sung.com>,
        Davidlohr Bueso <dave@...olabs.net>
Subject: Re: Revert "module: error out early on concurrent load of the same
 module file"'

On Tue, May 30, 2023 at 02:43:12PM -0700, Dan Williams wrote:
> [ add linux-cxl ]
> 
> Sedat Dilek wrote:
> > Hi,
> > 
> > after building Linux v6.4-rc4 I can NOT boot into my Debian GNU/Linux
> > AMD64 system with root-ext4 (/dev/sdc2 - of course using UUID in
> > /etc/fstab).
> 
> I did not find a mailing-list thread for "9828ed3f695a module: error out early
> on concurrent load of the same module file", so replying here. This
> commit breaks the basic CXL smoke test of loading the combination of
> cxl_acpi, cxl_pci, and cxl_mem modules.
> 
> Just wanted to highlight this a test case for the next attempt at this
> fix.

The revert has already been done:

commit ac2263b588dffd3a1efd7ed0b156ea6c5aea200d
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Mon May 29 06:40:33 2023 -0400

    Revert "module: error out early on concurrent load of the same
    module file"

The smoke test, is this the ndctl cxl tests with the mock driver? If so
then I could use it to test future efforts for alternatives for this
work before any new changes get merged.

  Luis

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