Messages in this thread | | | Date | Thu, 4 Aug 2022 11:46:35 +0200 | From | Ingo Molnar <> | Subject | Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource reservation fails |
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* Bharata B Rao <bharata@amd.com> wrote:
> On 7/18/2022 8:37 PM, Borislav Petkov wrote: > > > > I betcha you can generate a lot of "kernel bugs" with weird qemu > > options. If it is not a real use case, nobody cares. > > I see that we will hit this problem by default when starting > a guest with 1T or more memory using QEMU. > > > > > And even if it were a real use case, panicking the machine is not the > > right fix. > > I couldn't see a clean exit/recovery option in > setup_arch()->e820__reserve_resources() where this happens. Any > suggestions?
I'd emit a low impact, non-fatal WARN()ing to make sure users aren't silent victims of an easily detectable firmware (Qemu) misconfiguration.
Thanks,
Ingo
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