Messages in this thread | | | Date | Fri, 4 Jan 2013 14:10:25 -0800 | Subject | Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not enough ram for it | From | Yinghai Lu <> |
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On Fri, Jan 4, 2013 at 1:02 PM, Shuah Khan <shuahkhan@gmail.com> wrote: > Pani'cing the system doesn't sound like a good option to me in this > case. This change to disable swiotlb is made for kdump. However, with > this change several system fail to boot, unless crashkernel_low=72M is > specified.
this patchset is new feature to put second kdump kernel above 4G.
> > I would the say the right approach to solve this would be to not > change the current pci_swiotlb_detect_override() behavior and treat > swiotlb =1 upon entry equivalent to swiotlb_force set.
that will make intel system have to take crashkernel_low=72M too. otherwise intel system will get panic during swiotlb allocation.
Thanks
Yinghai
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