Messages in this thread | | | Date | Fri, 4 Jan 2013 20:10:29 -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 6:02 PM, Shuah Khan <shuahkhan@gmail.com> wrote: > I applied your patch to 3.6.11 and changed the panic() to pr_info() > and also changed enough_mem_for_swiotlb() to always return false to > simulate not enough memory condition as this system does have enough > memory. > > So at least on this AMD system, your patch will result in a panic.
ok, thanks for testing.
if enough_mem_for_swiotlb() return false really, allocating buffer for swiotlb with bootmem would panic already, right?
so this patch just delay the panic a while for AMD system with unhandled devices by IOMMU.
Thanks
Yinghai
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