linux-kernel - Re: 5.1 and 5.1.1: BUG: unable to handle kernel paging request at ffffea0002030000

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Message-ID: <20190527062301.rk32mhnk2qy2ives@butterfly.localdomain>
Date:   Mon, 27 May 2019 08:23:01 +0200
From:   Oleksandr Natalenko <oleksandr@...hat.com>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Justin Piszcz <jpiszcz@...idpixels.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: 5.1 and 5.1.1: BUG: unable to handle kernel paging request at
 ffffea0002030000

On Fri, May 24, 2019 at 01:31:46PM +0100, Mel Gorman wrote:
> On Fri, May 24, 2019 at 01:43:29PM +0200, Oleksandr Natalenko wrote:
> > > Please use the offset 0xb9
> > > 
> > > addr2line -i -e /usr/src/linux/vmlinux `printf "0x%lX" $((0x$ADDR+0xb9))
> > > 
> > > -- 
> > > Mel Gorman
> > > SUSE Labs
> > 
> > Cc'ing myself since i observe such a behaviour sometimes right after KVM
> > VM is launched. No luck with reproducing it on demand so far, though.
> > 
> 
> It's worth testing the patch at https://lore.kernel.org/lkml/1558689619-16891-1-git-send-email-suzuki.poulose@arm.com/T/#u

It is reported [1] that this fixes the issue.

Thanks.

[1] https://github.com/NixOS/nixpkgs/issues/61909

> 
> -- 
> Mel Gorman
> SUSE Labs

-- 
  Best regards,
    Oleksandr Natalenko (post-factum)
    Senior Software Maintenance Engineer