linux-kernel - Re: Splat during resume

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Message-ID: <20170325223927.u5hxyufjq6wufsp6@pd.tnic>
Date:   Sat, 25 Mar 2017 23:39:27 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Kirill A. Shutemov" <kirill@...temov.name>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Brian Gerst <brgerst@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Michal Hocko <mhocko@...e.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>, x86-ml <x86@...nel.org>
Subject: Re: Splat during resume

On Sat, Mar 25, 2017 at 03:05:41PM -0700, Linus Torvalds wrote:
> I think this is the same as the kexec issue that also hit -tip.
> 
> It's *probably* fixed by the final series to actually enable 5-level
> paging (which I don't think is in -tip yet), but even if that is the
> case this is obviously a nasty bisectability problem.

It being -tip only for now, I'm guessing that can still be addressed...?

> You migth want to verify, though. The second batch starts here:
> 
>   https://marc.info/?l=linux-mm&m=148977696117208&w=2
> 
> Hmm?
> 
> In the meantime, this is currently -tip only, so I will stack back
> from this thread unless you can reproduce it in mainline too.

I could try mainline, just in case and if you want me to but

* considering the patch which broke this is in tip only and
* after git-am'ing the 6 part-2 patches you and Kirill pointed me at, the resume issue is fixed,

it probably is not really needed.

Thanks guys.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.