linux-kernel - Re: [hv] BUG: kernel freezes after [ 13.356381] PCI: CLS 0 bytes, default 64

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Message-ID: <20130604224424.GB533@kroah.com>
Date:	Tue, 4 Jun 2013 15:44:24 -0700
From:	Greg KH <greg@...ah.com>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	devel@...uxdriverproject.org, Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [hv] BUG: kernel freezes after [   13.356381] PCI: CLS 0 bytes,
 default 64

On Tue, Jun 04, 2013 at 10:15:36PM +0800, Fengguang Wu wrote:
> Greetings,
> 
> I got the below dmesg (kernel freezes at the end of it) and the first bad commit is
> 
> commit cf6a2eacbcb2593b5b91d0817915c4f0464bb534
> Author: K. Y. Srinivasan <kys@...rosoft.com>
> Date:   Thu Dec 1 09:59:34 2011 -0800
> 
>     drivers: hv: Don't OOPS when you cannot init vmbus
>     
>     The hv vmbus driver was causing an OOPS since it was trying to register drivers
>     on top of the bus even if initialization of the bus has failed for some
>     reason (such as the odd chance someone would run a hv enabled kernel in a
>     non-hv environment).
>     
>     Signed-off-by: Sasha Levin <levinsasha928@...il.com>
>     Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
>     Cc: stable <stable@...r.kernel.org>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> 
> [   13.356381] PCI: CLS 0 bytes, default 64

Ick, not good.  K.Y., any reason why I shouldn't just revert this?

thanks,

greg k-h
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