linux-kernel - Re: next: /dev/root: Can't open blockdev

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Date: Tue, 6 Feb 2024 15:53:34 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Jan Kara <jack@...e.cz>
Cc: linux-block <linux-block@...r.kernel.org>, 
	Linux-Next Mailing List <linux-next@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, 
	Linux Regressions <regressions@...ts.linux.dev>, linux-fsdevel@...r.kernel.org, 
	lkft-triage@...ts.linaro.org, Arnd Bergmann <arnd@...db.de>, 
	Christian Brauner <brauner@...nel.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: next: /dev/root: Can't open blockdev

On Tue, 6 Feb 2024 at 15:45, Jan Kara <jack@...e.cz> wrote:
>
> On Tue 06-02-24 14:41:17, Naresh Kamboju wrote:
> > All qemu's mount rootfs failed on Linux next-20230206 tag due to the following
> > kernel crash.
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> >
> > Crash log:
> > ---------
> > <3>[    3.257960] /dev/root: Can't open blockdev
> > <4>[    3.258940] VFS: Cannot open root device "/dev/sda" or
> > unknown-block(8,0): error -16
>
> Uhuh, -16 is EBUSY so it seems Christian's block device opening changes are
> suspect? Do you have some sample kconfig available somewhere?

All build information is in this url,
https://storage.tuxsuite.com/public/linaro/lkft/builds/2byqguFVp7MYAEjKo6nJGba2FcP/

- Naresh