linux-kernel - Re: [PATCH 1/2] x86/stacktrace: do not fail when regs on stack for ORC

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Message-ID: <a27a7de0-cc28-cfc8-7d0b-7d284f5d5788@suse.cz>
Date:   Thu, 10 May 2018 14:33:03 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     mingo@...hat.com, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: [PATCH 1/2] x86/stacktrace: do not fail when regs on stack for
 ORC

On 04/19/2018, 03:42 PM, Josh Poimboeuf wrote:
> On Mon, Apr 16, 2018 at 05:16:53PM -0500, Josh Poimboeuf wrote:
>> On Wed, Dec 20, 2017 at 08:07:17PM +0100, Jiri Slaby wrote:
>>> On 12/20/2017, 06:45 PM, Josh Poimboeuf wrote:
>>>> It might not be until 2018 though.  But in the meantime you can go ahead
>>>> and update your patches accordingly and then we can combine them for
>>>> testing next year.
>>>
>>> I already did ;). So when you have that ready, I will send it on top
>>> right after.
>>
>> Sorry for the delay...  Here's a (lightly tested) patch.  Can you test
>> it with the latest version of your patches?
> 
> This one actually compiles:
> 
> From: Josh Poimboeuf <jpoimboe@...hat.com>
> Subject: [PATCH] x86/unwind/orc: Detect the end of the stack

With this patch applied, livepatching never completes. Kthreads are in
the unpatched state forever. I have no details yet.

thanks,
-- 
js
suse labs