Messages in this thread | | | Date | Fri, 17 Dec 2010 11:52:11 -0800 | From | Yinghai Lu <> | Subject | Re: kdump broken on 2.6.37-rc4 |
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On 12/17/2010 11:50 AM, Vivek Goyal wrote: > On Fri, Dec 17, 2010 at 11:46:08AM -0800, Yinghai Lu wrote: >> On 12/17/2010 11:39 AM, H. Peter Anvin wrote: >>> On 12/17/2010 10:21 AM, Yinghai Lu wrote: >>>>>> >>>>>> Do we have actual testing for how high the 64-bit kernel will load? >>>>> >>>>> I will do some experiments on my box today and let you know. >>>> >>>> if bzImage is used, it is 896M. >>>> >>> >>> Why? 896 MiB is a 32-bit kernel limitation which doesn't have anything >>> to do with the bzImage format. >>> >>> So unless there is something going on here, I suspect you're just plain >>> flat wrong. >> >> kexec-tools have some checking when it loads bzImage. >> > > Yinghai, > > I think x86_64 might have just inherited the settings of 32bit without > giving it too much of thought. At that point of time nobody bothered > to load the kernel from high addresses. So these might be artificial > limits.
good point. will check that.
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