From mboxrd@z Thu Jan 1 00:00:00 1970 From: Calvin Walton Subject: Re: [bisected, regression] 3.17-rc2 kernel doesn't load initramfs with EFI stub boot Date: Mon, 01 Sep 2014 14:59:28 -0400 Message-ID: <1409597968.1055.1.camel@kepstin.ca> References: <1409155357.1084.1.camel@kepstin.ca> <20140901184208.GA3001@console-pimps.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140901184208.GA3001-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Matt Fleming Cc: Yinghai Lu , Matt Fleming , "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-efi@vger.kernel.org On Mon, 2014-09-01 at 19:42 +0100, Matt Fleming wrote: > On Wed, 27 Aug, at 12:02:37PM, Calvin Walton wrote: > > Hi all, > > > > When I tried booting the 3.17-rc2 kernel on my Lenovo ThinkPad > > T440p > > (16gb ram) via Gummiboot/EFI stub, it failed with an error saying > > that > > it could not mount root. A little investigation revealed that the > > initramfs did not load, so mounting by filesystem UUID failed. > > I've bisected the change, and it has led me to: > > > > 4bf7111f50167133a71c23530ca852a41355e739 is the first bad commit > > commit 4bf7111f50167133a71c23530ca852a41355e739 > > Author: Yinghai Lu > > Date: Sat Jun 14 12:23:41 2014 -0700 > > > > x86/efi: Support initrd loaded above 4G > > Thanks for reporting this. Could you try the below commit and see > whether it fixes things for you? > > http://article.gmane.org/gmane.linux.kernel.efi/4524 With Yinghai Lu's patch from the linked message, my ThinkPad is now booting correctly. (Admittedly using a rather "small" 7MB intramfs - I don't have any >2GB ones handy). Feel free to take a Tested-by: Calvin Walton Thanks! -- Calvin Walton