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

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Message-ID: <20190527082513.GR18914@techsingularity.net>
Date:   Mon, 27 May 2019 09:25:13 +0100
From:   Mel Gorman <mgorman@...hsingularity.net>
To:     Oleksandr Natalenko <oleksandr@...hat.com>
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 Mon, May 27, 2019 at 08:23:01AM +0200, Oleksandr Natalenko wrote:
> 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
> 

Thanks! The patch has been picked up by Andrew and it's marked for
-stable. It should make its way into a stable release eventually.

-- 
Mel Gorman
SUSE Labs