linux-kernel - Re: [x86/mm] e2a7dcce31: kernel_BUG_at

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Message-ID: <20170528085147.dazpglz4my6o7isg@gmail.com>
Date:   Sun, 28 May 2017 10:51:47 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     kernel test robot <xiaolong.ye@...el.com>, X86 ML <x86@...nel.org>,
        Rik van Riel <riel@...hat.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Nadav Amit <namit@...are.com>, Michal Hocko <mhocko@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>, LKP <lkp@...org>
Subject: Re: [x86/mm] e2a7dcce31: kernel_BUG_at_arch/x86/mm/tlb.c


* Andy Lutomirski <luto@...nel.org> wrote:

> On Sat, May 27, 2017 at 6:31 AM, kernel test robot
> <xiaolong.ye@...el.com> wrote:
> >
> > FYI, we noticed the following commit:
> >
> > commit: e2a7dcce31f10bd7471b4245a6d1f2de344e7adf ("x86/mm: Rework lazy TLB to track the actual loaded mm")
> > https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git x86/tlbflush_cleanup
> 
> Ugh, there's an unpleasant interaction between this patch and
> intel_idle.  I suspect that the intel_idle code in question is either
> wrong or pointless, but I want to investigate further.  Ingo, can you
> hold off on applying this patch?

Yeah, will wait for the next iteration of your series.

Thanks,

	Ingo