linux-kernel - Re: fs_context-related oops in mainline

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Message-ID: <20190315113447.GX2217@ZenIV.linux.org.uk>
Date:   Fri, 15 Mar 2019 11:34:47 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     David Howells <dhowells@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
        fenghua.yu@...el.com, linux-kernel@...r.kernel.org
Subject: Re: fs_context-related oops in mainline

On Fri, Mar 15, 2019 at 08:43:07AM +0100, Dominik Brodowski wrote:
> David, Al,
> 
> commit 23bf1b6be9c2 ("kernfs, sysfs, cgroup, intel_rdt: Support fs_context")
> seems to have introduced a bug; at least that's the commit I bisected the
> following oops down to:

> This occurs while trying to mount sysfs in initramfs
> 
> 	mount -n -t sysfs sysfs /sys
> 
> All this obviously runs in qemu; config and further information are available upon request.

.config, please?