Re: PROBLEM: Crash after mm: fix initialization of struct page for holes in memory layout

[Mike Rapoport]

On Wed, Jan 27, 2021 at 11:08:17AM +0100, Łukasz Majczak wrote:
> Hi Mike,
> 
> Actually I have a serial console attached (via servo device), but
> there is no output :( and also the reboot/crash is very fast/immediate
> after power on.
 
If you boot with earlyprintk=serial are there any messages?

> Best regards
> Lukasz
> 
> śr., 27 sty 2021 o 11:05 Mike Rapoport <rppt@xxxxxxxxxxxxx> napisał(a):
> >
> > Hi Lukasz,
> >
> > On Wed, Jan 27, 2021 at 10:22:29AM +0100, Łukasz Majczak wrote:
> > > Crash after mm: fix initialization of struct page for holes in memory layout
> > >
> > > Hi,
> > > I was trying to run v5.11-rc5 on my Samsung Chromebook Pro (Caroline),
> > > but I've noticed it has crashed - unfortunately it seems to happen at
> > > a very early stage - No output to the console nor to the screen, so I
> > > have started a bisect (between 5.11-rc4 - which works just find - and
> > > 5.11-rc5),
> > > bisect results points to:
> > >
> > > d3921cb8be29 mm: fix initialization of struct page for holes in memory layout
> > >
> > > Reproduction is just to build and load the kernel.
> > >
> > > If it will help any how I am attaching:
> > > - /proc/cpuinfo (from healthy system):
> > > https://gist.github.com/semihalf-majczak-lukasz/3517867bf39f07377c1a785b64a97066
> > > - my .config file (for a broken system):
> > > https://gist.github.com/semihalf-majczak-lukasz/584b329f1bf3e43b53efe8e18b5da33c
> > >
> > > If there is anything I could add/do/test to help fix this please let me know.
> >
> > Chris Wilson also reported boot failures on several Chromebooks:
> >
> > https://lore.kernel.org/lkml/161160687463.28991.354987542182281928@xxxxxxxxxxxxxxxxxxxxx
> >
> > I presume serial console is not an option, so if you could boot with
> > earlyprintk=vga and see if there is anything useful printed on the screen
> > it would be really helpful.
> >
> > > Best regards
> > > Lukasz
> >
> > --
> > Sincerely yours,
> > Mike.

-- 
Sincerely yours,
Mike.