linux-kernel - Re: [PATCH] xfs: fix system crash caused by null bp->b

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Date:   Fri, 24 Sep 2021 19:16:42 -0700
From:   Rustam Kovhaev <rkovhaev@...il.com>
To:     Dave Chinner <david@...morbit.com>
Cc:     Eric Sandeen <sandeen@...deen.net>,
        Fengfei Xi <xi.fengfei@....com>, darrick.wong@...cle.com,
        linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        tian.xianting@....com
Subject: Re: [PATCH] xfs: fix system crash caused by null bp->b_pages

Hi Dave,

On Wed, Sep 22, 2021 at 11:48:04AM +1000, Dave Chinner wrote:
> On Tue, Sep 21, 2021 at 03:48:13PM -0700, Rustam Kovhaev wrote:
> > Hi Fengfei, Eric,
> > 
> > On Thu, Dec 24, 2020 at 01:35:32PM -0600, Eric Sandeen wrote:
> > > On 12/24/20 3:51 AM, Fengfei Xi wrote:
> > > > We have encountered the following problems several times:
> > > >     1、A raid slot or hardware problem causes block device loss.
> > > >     2、Continue to issue IO requests to the problematic block device.
> > > >     3、The system possibly crash after a few hours.
> > > 
> > > What kernel is this on?
> > > 
> > 
> > I have a customer that recently hit this issue on 4.12.14-122.74
> > SLE12-SP5 kernel.
> 
> I think need to engage SuSE support and engineering, then, as this
> is not a kernel supported by upstream devs. I'd be saying the same
> thing if this was an RHEL frankenkernel, too.
> 

roger that, should not be a problem, thank you!