netdev - Re: Hang with "runaway loop modprobe net-pf-1" on Linux 3.0.4

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Message-ID: <4E877A22.6070605@shealevy.com>
Date:	Sat, 01 Oct 2011 16:37:54 -0400
From:	Shea Levy <shea@...alevy.com>
To:	linux-kernel@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	"Eric Dumazet" <eric.dumazet@...il.com>,
	"Alban Crequy" <alban.crequy@...labora.co.uk>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Davide Libenzi" <davidel@...ilserver.org>, netdev@...r.kernel.org
Subject: Re: Hang with "runaway loop modprobe net-pf-1" on Linux 3.0.4

On 09/29/2011 08:38 AM, shea@...alevy.com wrote:
> Hello,
>
> My initrd mounts /proc and /sys, puts a tmpfs at /dev, then loads ext4. On
> 2.6.39 (and earlier), this works fine and the initrd init continues
> happily. On 3.0.4, however, the kernel spits out
>
>> request_module: runaway loop modprobe net-pf-1
> a few times then hangs. If I drop into a shell before loading ext4 and run
> modprobe unix, the same problem occurs. The modprobe used is dynamically
> linked with glibc (which is included in the initrd), and it is the same
> modprobe on the working and non-working systems. From my searches, it
> appears that CONFIG_UNIX=y instead of =m would probably solve this
> problem, but I'd rather keep it as a module if it's possible to get it
> working. What's going wrong here? Why does it work on 2.6.39 but not
> 3.0.4?
>
> Regards,
> Shea Levy
>
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CC'ing af_unix.c maintainers. Also, I had the same problem with 3.0.
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