Messages in this thread |  | | Subject | Re: [PATCH v3 0/9] Parallel CPU bringup for x86_64 | From | Tom Lendacky <> | Date | Tue, 21 Dec 2021 16:25:35 -0600 |
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On 12/20/21 3:47 PM, Tom Lendacky wrote: > On 12/20/21 3:29 PM, David Woodhouse wrote: >> On Mon, 2021-12-20 at 12:54 -0600, Tom Lendacky wrote: >>> Took the tree back to commit df9726cb7178 and then applied this change. >>> I'm unable to trigger any kind of failure with this change. >> >> Hm... I fired up an EC2 m6a.48xlarge instance (192 CPUs) to play with. >> >> I can reproduce your triple-fault on SMP bringup, but only with kexec. >> And I basically can't get *anything* to kexec without that triple- >> fault. Not a clean 5.16-rc2, not the Fedora stock 5.14.10 kernel. >> >> If I *boot* instead of kexec, I have not yet seen the problem at all. >> This is using Legacy BIOS not UEFI. > > Let me try with a legacy BIOS and see if I can repro. Might not be until > tomorrow, though, since I had to let someone borrow the machine.
I still encounter the issue using a legacy BIOS (SeaBIOS).
Thanks, Tom
> > Thanks, > Tom > >> >>
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