Messages in this thread | | | Date | Tue, 21 Jul 2015 16:58:46 +0800 | From | Baoquan He <> | Subject | Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel low memory reserving failed |
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On 07/21/15 at 04:23pm, Dave Young wrote: > > I think so. the reason why ,low is introduced is swiotlb or pci device > > need low memory when crashkernel is reserved above 4G. Low memory is > > necessary when ,high is specified unless user can make sure their > > machines don't need low memory and specify crashkernel=0,low explictly. > > I think forcing user to provide crashkernel=0,low even they do not need > is bad, IMHO one should provided crashkernel value they really need..
Maybe system which don't need low memory is rare, only for testing?
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