From: Baoquan He <bhe@redhat.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.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
Date: Tue, 21 Nov 2023 20:50:03 +0800 [thread overview]
Message-ID: <ZVyne10VpRR1Kpkk@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20231121104011.jfe6fzmxgl7onlfi@box.shutemov.name>
On 11/21/23 at 01:40pm, Kirill A. Shutemov wrote:
> 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.
I see, thanks.
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WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.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
Date: Tue, 21 Nov 2023 20:50:03 +0800 [thread overview]
Message-ID: <ZVyne10VpRR1Kpkk@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20231121104011.jfe6fzmxgl7onlfi@box.shutemov.name>
On 11/21/23 at 01:40pm, Kirill A. Shutemov wrote:
> 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.
I see, thanks.
next prev parent reply other threads:[~2023-11-21 12:50 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-15 12:00 [PATCHv3 00/14] x86/tdx: Add kexec support Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 01/14] x86/acpi: Extract ACPI MADT wakeup code into a separate file Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-21 2:08 ` Huang, Kai
2023-11-21 2:08 ` Huang, Kai
2023-11-15 12:00 ` [PATCHv3 02/14] x86/apic: Mark acpi_mp_wake_* variables as __ro_after_init Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-21 2:08 ` Huang, Kai
2023-11-21 2:08 ` Huang, Kai
2023-11-15 12:00 ` [PATCHv3 03/14] cpu/hotplug: Add support for declaring CPU offlining not supported Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-21 2:15 ` Huang, Kai
2023-11-21 2:15 ` Huang, Kai
2023-11-21 9:31 ` kirill.shutemov
2023-11-21 9:31 ` kirill.shutemov
2023-11-15 12:00 ` [PATCHv3 04/14] cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 05/14] x86/kvm: Do not try to disable kvmclock if it was not enabled Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 06/14] x86/kexec: Keep CR4.MCE set during kexec for TDX guest Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:23 ` Peter Zijlstra
2023-11-15 12:23 ` Peter Zijlstra
2023-11-15 13:03 ` Kirill A. Shutemov
2023-11-15 13:03 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 07/14] x86/mm: Make x86_platform.guest.enc_status_change_*() return errno Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 08/14] x86/mm: Return correct level from lookup_address() if pte is none Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 09/14] x86/tdx: Account shared memory Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-21 2:47 ` Huang, Kai
2023-11-21 2:47 ` Huang, Kai
2023-11-21 9:42 ` kirill.shutemov
2023-11-21 9:42 ` kirill.shutemov
2023-11-21 9:49 ` kirill.shutemov
2023-11-21 9:49 ` kirill.shutemov
2023-11-15 12:00 ` [PATCHv3 10/14] x86/tdx: Convert shared memory back to private on kexec Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-21 3:46 ` Huang, Kai
2023-11-21 3:46 ` Huang, Kai
2023-11-21 9:58 ` kirill.shutemov
2023-11-21 9:58 ` kirill.shutemov
2023-11-22 10:07 ` Huang, Kai
2023-11-22 10:07 ` Huang, Kai
2023-11-23 13:47 ` kirill.shutemov
2023-11-23 13:47 ` kirill.shutemov
2023-11-15 12:00 ` [PATCHv3 11/14] x86/mm: Make e820_end_ram_pfn() cover E820_TYPE_ACPI ranges Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 12/14] x86/acpi: Rename fields in acpi_madt_multiproc_wakeup structure Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 12:00 ` [PATCHv3 13/14] x86/acpi: Do not attempt to bring up secondary CPUs in kexec case Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 20:12 ` Kuppuswamy Sathyanarayanan
2023-11-15 20:12 ` Kuppuswamy Sathyanarayanan
2023-11-15 12:00 ` [PATCHv3 14/14] x86/acpi: Add support for CPU offlining for ACPI MADT wakeup method Kirill A. Shutemov
2023-11-15 12:00 ` Kirill A. Shutemov
2023-11-15 20:30 ` kernel test robot
2023-11-23 9:38 ` Huang, Kai
2023-11-23 9:38 ` Huang, Kai
2023-12-01 15:57 ` kirill.shutemov
2023-12-01 15:57 ` kirill.shutemov
2023-12-04 22:43 ` Huang, Kai
2023-12-04 22:43 ` Huang, Kai
2023-11-16 12:10 ` [PATCHv3 00/14] x86/tdx: Add kexec support Baoquan He
2023-11-16 12:10 ` Baoquan He
2023-11-16 12:56 ` Kirill A. Shutemov
2023-11-16 12:56 ` Kirill A. Shutemov
2023-11-16 14:17 ` Baoquan He
2023-11-16 14:17 ` Baoquan He
2023-11-16 14:45 ` Baoquan He
2023-11-16 14:45 ` Baoquan He
2023-11-17 12:47 ` Kirill A. Shutemov
2023-11-17 12:47 ` Kirill A. Shutemov
2023-11-17 15:03 ` Baoquan He
2023-11-17 15:03 ` Baoquan He
2023-11-17 15:46 ` Kirill A. Shutemov
2023-11-17 15:46 ` Kirill A. Shutemov
2023-11-21 6:41 ` Baoquan He
2023-11-21 6:41 ` Baoquan He
2023-11-21 8:43 ` Kirill A. Shutemov
2023-11-21 8:43 ` Kirill A. Shutemov
2023-11-21 9:10 ` Tao Liu
2023-11-21 9:10 ` Tao Liu
2023-11-21 9:24 ` Kirill A. Shutemov
2023-11-21 9:24 ` Kirill A. Shutemov
2023-11-21 10:15 ` Baoquan He
2023-11-21 10:15 ` Baoquan He
2023-11-21 10:40 ` Kirill A. Shutemov
2023-11-21 10:40 ` Kirill A. Shutemov
2023-11-21 12:50 ` Baoquan He [this message]
2023-11-21 12:50 ` Baoquan He
2023-11-28 15:45 ` Isaku Yamahata
2023-11-28 15:45 ` Isaku Yamahata
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