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.