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SubjectRe: [PATCH v3 1/1] PCI: Fix bug resulting in double hpmemsize being assigned to MMIO window
[+cc Naresh]

On Thu, Nov 21, 2019 at 02:52:41PM +0000, Nicholas Johnson wrote:
> On Tue, Nov 19, 2019 at 07:38:28AM -0600, Bjorn Helgaas wrote:
> > On Tue, Nov 19, 2019 at 03:17:04AM +0000, Nicholas Johnson wrote:
> > > I did just discover linux-next and I built it. Should I be doing this
> > > more often to help find regressions?
> >
> > Yes, if you build and run linux-next, that's a great service because
> > it helps find problems before they appear in mainline.
>
> Funnily enough, I just built Linux next-20191121 and it has a NULL
> dereference on start-up, which renders the system unusable.
>
> Can anybody else please confirm? I enabled most of the new options since
> the last linux-next a few days before.
> ...

> Here is a preliminary bug report (assuming you are meant to report
> linux-next bugs here):
> https://bugzilla.kernel.org/show_bug.cgi?id=205621

Looks similar to these reports I found by searching for kernfs_find_ns on
https://lore.kernel.org/lkml:

https://lore.kernel.org/r/000000000000bdfc8e0597ddbde4@google.com
https://lore.kernel.org/r/000000000000c1e9090597ddbd9d@google.com
https://lore.kernel.org/r/CA+G9fYsrRw2SRb92eROCt6aU==j6Qr9Fe4AmJyn4fMj5gDFt=w@mail.gmail.com

Thanks very much for doing this testing and reporting the results. I
don't think there's anything more you need to do. It looks like
Naresh already cc'd some likely candidates.

Bjorn

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