linux-kernel - Re: v4.4-rc8 based tip tree kernel hangs on boot.

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Date:	Mon, 11 Jan 2016 22:17:12 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Matt Fleming <matt@...eblueprint.co.uk>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>, linux-efi@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: v4.4-rc8 based tip tree kernel hangs on boot.

> >  
> > What info is there?
> > 

https://goo.gl/photos/1izrwCtAWj8aK7hi7
Unfortunately I am unable to get a text console. So this is all I see.


> > > Tried reverting Commit 21cdb6b56 "x86/mm: Page align the '_end'
> > > symbol to avoid pfn conversion bugs" but that doesnt help.
> > 
> > Odd. Could you try booting the tip/x86/efi branch instead? There's
> > only a handful of patches on that branch so it should be pretty easy
> > to narrow down the problematic change.
> 
> Yes, that would be nice, you can get it via:
> 

# git reset --hard tip/x86/efi
HEAD is now at e2c90dd x86/efi-bgrt: Replace early_memremap() with memremap()

Tried to boot with the above commit; but it doesnt boot.

-- 
Thanks and Regards
Srikar

>   git checkout v4.4
>   git pull git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/efi
> 
> Meanwhile I'm holding off on sending the pending EFI bits to Linus, conditional on 
> the outcome of this regression report.
> 
> Thanks,
> 
> 	Ingo
> 

-- 
Thanks and Regards
Srikar Dronamraju