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From: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: "Fleming,
	Matt" <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org"
	<bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] export efi.flags to sysfs
Date: Wed, 28 May 2014 10:51:40 -0400	[thread overview]
Message-ID: <20140528145140.GN14863@redhat.com> (raw)
In-Reply-To: <20140528020935.GB2820-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>

On Wed, May 28, 2014 at 10:09:35AM +0800, Dave Young wrote:

[..]
> > I've only vaguely been following along with the other thread, so please
> > summarise everything again in your patch. Particularly, I need answers
> > to the following questions,
> > 
> >  - Are you trying to fix a kexec/kdump regression?
> 
> Somehow it is a regression.

Well, it is a *regression*. Previously kdump would work with
SGI UV machines as it used "noefi". Now kexec by default thinks that
efi is enabled and 1:1 mappings are in place and that does not work
with SGI UV machines.

So just providing --noefi is not enough. Somebody needs to automatically
figure out that this SGI machine does not contain 1:1 mapping and hence
need to fall back to old mode. --noefi is good for override.

Thanks
Vivek

  parent reply	other threads:[~2014-05-28 14:51 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-26  8:39 [PATCH] export efi.flags to sysfs Dave Young
     [not found] ` <20140526083935.GA19682-je1gSBvt1Tc/CGXRbJeUwh/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2014-05-27  3:00   ` Dave Young
     [not found]     ` <20140527030058.GB2372-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-05-27 13:36       ` Fleming, Matt
     [not found]         ` <CAL01qpvqa-8u2MZ=8wE8gsiprFLbN4U3AbEX9+h7FuemXNR93Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-28  2:09           ` Dave Young
2014-05-28  9:47             ` Dave Young
2014-05-28 15:51               ` Alex Thorlton
     [not found]                 ` <20140528155104.GW10771-sJ/iWh9BUns@public.gmane.org>
2014-05-28 19:04                   ` Vivek Goyal
2014-05-28 20:11                     ` Alex Thorlton
     [not found]                     ` <20140528190400.GR14863-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-29 11:58                       ` Fleming, Matt
2014-05-29  2:37                   ` Dave Young
     [not found]             ` <20140528020935.GB2820-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-05-28 14:51               ` Vivek Goyal [this message]
     [not found]                 ` <20140528145140.GN14863-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-29 11:53                   ` Fleming, Matt
     [not found]                     ` <CAL01qpsb5_Gh31uqm7yB6HP2rKQkhFWWTu+U4JAR54XR5bfbZw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-29 12:59                       ` Vivek Goyal
     [not found]                         ` <20140529125910.GE14570-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-29 13:10                           ` Fleming, Matt
     [not found]                             ` <CAL01qpuNS0u89gaR9pCKUoCVRkADhPO4mZueEyK8nP84=OfDaA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-30  1:53                               ` Dave Young
2014-05-27 13:34   ` Vivek Goyal
     [not found]     ` <20140527133411.GG10994-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-28  2:13       ` Dave Young
     [not found]         ` <20140528021359.GC2820-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-05-28 12:40           ` Vivek Goyal
     [not found]             ` <20140528124029.GF14863-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-29  2:08               ` Dave Young
2014-05-29  9:09                 ` Dave Young
     [not found]                 ` <20140529020837.GB2068-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-05-29 12:45                   ` Vivek Goyal
     [not found]                     ` <20140529124520.GC14570-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-29 12:50                       ` Borislav Petkov
2014-05-30  2:24                       ` Dave Young
     [not found]                         ` <20140530022438.GC1985-4/PLUo9XfK+sDdueE5tM26fLeoKvNuZc@public.gmane.org>
2014-05-30  7:33                           ` Borislav Petkov

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