From: Heiner Kallweit <hkallweit1@gmail.com>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>
Subject: Re: Module loading problem since 5.3
Date: Fri, 11 Oct 2019 21:26:05 +0200 [thread overview]
Message-ID: <875eecfb-618a-4989-3b9f-f8272b8d3746@gmail.com> (raw)
In-Reply-To: <CAB=NE6XdVXMnq7pgmXxv4Qicu7=xrtQC-b2sXAfVxiAq68NMKg@mail.gmail.com>
On 10.10.2019 19:15, Luis Chamberlain wrote:
>
>
> On Thu, Oct 10, 2019, 6:50 PM Heiner Kallweit <hkallweit1@gmail.com <mailto:hkallweit1@gmail.com>> wrote:
>
> MODULE_SOFTDEP("pre: realtek")
>
> Are you aware of any current issues with module loading
> that could cause this problem?
>
>
> Nope. But then again I was not aware of MODULE_SOFTDEP(). I'd encourage an extension to lib/kmod.c or something similar which stress tests this. One way that comes to mind to test this is to allow a new tests case which loads two drives which co depend on each other using this macro. That'll surely blow things up fast. That is, the current kmod tests uses request_module() or get_fs_type(), you'd want a new test case with this added using then two new dummy test drivers with the macro dependency.
>
> If you want to resolve this using a more tested path, you could have request_module() be used as that is currently tested. Perhaps a test patch for that can rule out if it's the macro magic which is the issue.
>
> Luis
>
Maybe issue is related to a bug in introduction of symbol namespaces, see here:
https://lkml.org/lkml/2019/10/11/659
Heiner
next prev parent reply other threads:[~2019-10-11 19:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 16:50 Module loading problem since 5.3 Heiner Kallweit
[not found] ` <CAB=NE6XdVXMnq7pgmXxv4Qicu7=xrtQC-b2sXAfVxiAq68NMKg@mail.gmail.com>
2019-10-11 19:26 ` Heiner Kallweit [this message]
2019-10-14 8:52 ` Luis Chamberlain
2019-10-14 14:44 ` Matthias Maennich
2019-10-16 12:50 ` Luis Chamberlain
2019-10-16 13:37 ` Matthias Maennich
2019-10-18 12:18 ` Luis Chamberlain
2019-10-23 10:49 ` Matthias Maennich
2019-10-23 12:35 ` Luis Chamberlain
2019-10-24 9:22 ` Matthias Maennich
2019-10-14 10:01 ` Jessica Yu
2019-10-14 10:32 ` Luis Chamberlain
2019-10-14 18:16 ` Heiner Kallweit
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