Re: [Xen-ia64-devel] Regression: [IA64] Saner dom0 memory and cpu defaults

[Jarod Wilson <jwilson@xxxxxxxxxx>]

Alex Williamson wrote:
> On Tue, 2007-08-28 at 19:28 +0900, Horms wrote:
>> xen-unstable.hg's 15693:87a72ba32301ceb894e065d760953aa98730c0cd,
>> "[IA64] Saner dom0 memory and cpu defaults" seems to cause a regression
>> on my HP RX2620 with 2Gb of memory.
>>
>> I can get around this pretty easily by specifying dom0_mem on the
>> command line. Emirically I have found that values of 1021M or less
>> boot, while values of 1022M or more fail. This seems substantially
>> smaller than the 1926M that xen calculates could be used, though that
>> figure does seem to correlate with the 2G of physical memory that the
>> machine has.
>>
>> Let me know what I should poke to investigate further.
> 
>    Are you booting a CONFIG_IA64_DIG kernel?  Thanks,

This looks to be exactly the same thing Zhang is hitting. Zhang, can you
also confirm whether or not you've built your kernel with CONFIG_IA64_DIG?

All my own testing has been with kernels built w/CONFIG_IA64_GENERIC,
which I'm pretty sure also worked on an HP rx2620 here, and definitely
works on an HP rx2660, rx6600, rx8620, rx8640, zx2000 and a Hitachi
ColdFusion 3e/Intel s6e4533 system.

-- 
Jarod Wilson
jwilson@xxxxxxxxxx

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