linux-kernel - Re: [PATCH v18 6/7] crypto: caam: cleanup CONFIG

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Date:   Tue, 3 Jul 2018 17:20:34 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Fabio Estevam <festevam@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        linux-ntb@...glegroups.com,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Horia Geantă <horia.geanta@....com>,
        Dan Douglass <dan.douglass@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH v18 6/7] crypto: caam: cleanup CONFIG_64BIT ifdefs when
 using io{read|write}64



On 03/07/18 04:21 PM, Andy Shevchenko wrote:
> On Wed, Jul 4, 2018 at 12:20 AM, Logan Gunthorpe <logang@...tatee.com> wrote:
>> On 7/3/2018 1:40 PM, Fabio Estevam wrote:
> 
>> Also, it could be helpful if you can compile with CONFIG_DEBUG_INFO and
>> use gdb to find out what line "caam_jr_interrupt+0x120" points to in
>> your image.
> 
> It is an explicit call to BUG().
> That's why we see wrong instruction trap.

Oh. So some IO in some other place must have changed to trigger the BUG...

Logan