From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86F4945957 for ; Thu, 16 Nov 2023 12:10:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fccec/cl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1700136656; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=2o8llrEy4J3tkRIyO6miHMlYGkEf09QZYyfJI1/fuJU=; b=fccec/cla5eQArgHuhiDh0LR/mkzcyj+tX12llUx83KiCiAxlPPYV+Blso9p4pZBJgqvwm s+jy4uVtJv7XjEUjB7wGrJB7uOamyHdmpMoR55uRndTOM/2URjdlmAbagkAcYfQdoXlf8W jM6hGArbkNeVyPvwJosOvRDKvZJXZJk= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-391-O4zObQUCNOqwSdecns0Nxg-1; Thu, 16 Nov 2023 07:10:52 -0500 X-MC-Unique: O4zObQUCNOqwSdecns0Nxg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id ADDF285A58C; Thu, 16 Nov 2023 12:10:51 +0000 (UTC) Received: from localhost (unknown [10.72.112.11]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DFD311C060AE; Thu, 16 Nov 2023 12:10:50 +0000 (UTC) Date: Thu, 16 Nov 2023 20:10:47 +0800 From: Baoquan He To: "Kirill A. Shutemov" Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "Rafael J. Wysocki" , Peter Zijlstra , Adrian Hunter , Kuppuswamy Sathyanarayanan , Elena Reshetova , Jun Nakajima , Rick Edgecombe , Tom Lendacky , "Kalra, Ashish" , Sean Christopherson , "Huang, Kai" , kexec@lists.infradead.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCHv3 00/14] x86/tdx: Add kexec support Message-ID: References: <20231115120044.8034-1-kirill.shutemov@linux.intel.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231115120044.8034-1-kirill.shutemov@linux.intel.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 On 11/15/23 at 03:00pm, Kirill A. Shutemov wrote: > The patchset adds bits and pieces to get kexec (and crashkernel) work on > TDX guest. I finally got a machine of intel-eaglestream-spr as host and built a tdx guest to give it a shot, the kexec reboot is working very well, while kdump kernel always failed to boot up. I only built kernel and installed it on tdx guest. ------------------------------------------ [ 1.422500] Run /init as init process [ 1.423073] Failed to execute /init (error -2) [ 1.423759] Run /sbin/init as init process [ 1.424370] Run /etc/init as init process [ 1.424969] Run /bin/init as init process [ 1.425588] Run /bin/sh as init process [ 1.426150] Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance. [ 1.428122] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc1-00014-gbdba31ba3cec #3 [ 1.429232] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 2/2/2022 [ 1.430328] Call Trace: [ 1.430717] [ 1.431041] dump_stack_lvl+0x33/0x50 [ 1.431581] panic+0x324/0x340 [ 1.432037] ? __pfx_kernel_init+0x10/0x10 [ 1.432629] kernel_init+0x174/0x1c0 [ 1.433149] ret_from_fork+0x2d/0x50 [ 1.433690] ? __pfx_kernel_init+0x10/0x10 [ 1.434277] ret_from_fork_asm+0x1b/0x30 [ 1.434850] [ 1.435345] Kernel Offset: disabled [ 1.439216] Rebooting in 10 seconds.. qemu-kvm: cpus are not resettable, terminating