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Date:   Tue, 21 Nov 2023 13:40:11 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To:     Baoquan He <bhe@redhat.com>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, ltao@redhat.com,
        Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
        Elena Reshetova <elena.reshetova@intel.com>,
        Jun Nakajima <jun.nakajima@intel.com>,
        Rick Edgecombe <rick.p.edgecombe@intel.com>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        "Kalra, Ashish" <ashish.kalra@amd.com>,
        Sean Christopherson <seanjc@google.com>,
        "Huang, Kai" <kai.huang@intel.com>, kexec@lists.infradead.org,
        linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv3 00/14] x86/tdx: Add kexec support
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On Tue, Nov 21, 2023 at 06:15:13PM +0800, Baoquan He wrote:
> > > 2) anything missing to allow makedumpfile/cp access 1st kernel's memory?
> > 
> > It worked before for us, but I have not checked for a while.
> > 
> > I expected you've dropped my "if (crash) return;" debug patch I asked you
> > to tested before, right? If not, failure is expected.
> 
> Ah, my bad. I didn't actually.
> 
> Just now I rebuilt kernel and retested, vmcore saving works. Just when
> it finished kdump work and tried to reboot, the rebooting failed because
> cpus are not resettable like kexec reboot does. Not sure if this is seen
> in your test.

Yes. It is the same reboot limitation I've mentioned before.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov