Messages in this thread | | | Date | Wed, 16 Jan 2013 18:35:02 -0800 | Subject | Re: [PATCH v7u1 00/31] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G | From | Yinghai Lu <> |
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On Wed, Jan 16, 2013 at 10:20 AM, Yinghai Lu <yinghai@kernel.org> wrote: > On Wed, Jan 16, 2013 at 9:38 AM, H. Peter Anvin <hpa@zytor.com> wrote: >> On 01/16/2013 09:31 AM, Yinghai Lu wrote: >>> >>> >> >> The first sentence here doesn't parse, and this description doesn't give any >> hint to anyone who is researching this code in say, five years, what >> problems this caused. >> >> I can't really figure it out, either; from looking at the thread and the >> patch I'm assuming the problem is somehow that the code failed to use the >> last page in the brk buffer, which somehow lead to a Xen boot failure... but >> the bits from here to there are totally unclear. > > ok, let me try again. > tip:x86/mm2 does not fail on xen testing from Stefano and Konrad. > > Stefano found booting failure with PV xen with for-x86-boot. > > for-x86-boot has one patch that is trying to get back an wasted page > in pre-allocated BRK > and that cause xen pv fails with 2G setup. > that patch just uncover one bug in x86/mm2. > > So questions: > 1. do we need to rebase x86/mm2 to fold the two patches in. ? > 2. or just put fixes at beginning for-x86-boot ? >
I updated for-x86-boot branch via second path. git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-x86-boot
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