RE: [Question] kernfs: NULL pointer dereference in kernfs_dop_revalidate()

[Zhoujian (jay)]

> -----Original Message-----
> From: gregkh@xxxxxxxxxxxxxxxxxxx [mailto:gregkh@xxxxxxxxxxxxxxxxxxx]
> Sent: Monday, March 28, 2022 8:20 PM
> To: Zhoujian (jay) <jianjay.zhou@xxxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx; tj@xxxxxxxxxx; Huangweidong (C)
> <weidong.huang@xxxxxxxxxx>; Wangjing(Hogan) <hogan.wang@xxxxxxxxxx>
> Subject: Re: [Question] kernfs: NULL pointer dereference in
> kernfs_dop_revalidate()
> 
> On Mon, Mar 28, 2022 at 11:59:49AM +0000, Zhoujian (jay) wrote:
> > Hi,
> >
> > We met a kernel panic during boot the new kernel using kexec, the
> > kernel version is 4.18.0(with some our changes), here is the stack:
> 
> 4.18.0 is _VERY_ old and obsolete, sorry.  Can you duplicate this on 5.17?

Thanks for your reply, I'll have a try.