linux-kernel - Re: [PATCH] xhci-ring: Fix Null pointer dereference

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Message-ID: <54044C5C.9010305@intel.com>
Date:	Mon, 01 Sep 2014 13:37:16 +0300
From:	Mathias Nyman <mathias.nyman@...el.com>
To:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux USB Mailing List <linux-usb@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xhci-ring: Fix Null pointer dereference

On 09/01/2014 12:36 PM, Ricardo Ribalda Delgado wrote:
> After some time of use (one hour or so) my system started to behave
> "weird". I did check  dmesg and I was receiving the following line
> again and again:
> 
> usb-storage: Error in queuecommand_lck: us->sfb= ffff8805bd61ccc0
> 
> I did disconnect the usb device and the whole computer crashed :S
> 

Ok, thanks.

Would you say things work better after the patch?

I still think the patch solves part of the issue, i.e. how we handle halted endpoints
in reset, but I don't know the reason why the endpoints stall in the first place

-Mathias


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