linux-kernel - Re: [PATCH] do_mounts: fix not all available filesystems get tried during boot

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Message-ID: <CAFLxGvzOobytf_SEQmmKGrC-buVyh4C5KqD1O56wnrqaHB3KLw@mail.gmail.com>
Date:	Sun, 27 Apr 2014 13:04:13 +0200
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Пламен Петров 
	<plamen.sisi@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] do_mounts: fix not all available filesystems get tried
 during boot

On Sun, Apr 27, 2014 at 12:37 PM, Пламен Петров <plamen.sisi@...il.com> wrote:
> While debugging a kernel panic with 3.14.1 it became clear that some
> changes made some filesystems mount routines return error codes other
> than 0, EACCES and EINVAL. Such return codes result in the kernel
> panicking without trying to mount root with all of the available
> filesystems, as can be seen in bugzilla entries 74901 and 74261.

What filesystems are these?

> Make mount_block_root continue trying other available filesystems by
> default, not only when the last tried returned EACCES or EINVAL.
>
> Signed-off-by: Plamen Petrov <plamen.sisi@...il.com>
> ---
>  init/do_mounts.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/init/do_mounts.c b/init/do_mounts.c
> index 09ded58..a4abbdf 100644
> --- a/init/do_mounts.c
> +++ b/init/do_mounts.c
> @@ -403,7 +403,7 @@ retry:
>                         case -EACCES:
>                                 flags |= MS_RDONLY;
>                                 goto retry;
> -                       case -EINVAL:
> +                       default:
>                                 continue;
>                 }
>                 /*
> --
> 1.9.0
> --
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-- 
Thanks,
//richard
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