From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51677) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrQww-0000kN-CZ for qemu-devel@nongnu.org; Thu, 20 Nov 2014 07:35:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XrQwr-0001Cu-PG for qemu-devel@nongnu.org; Thu, 20 Nov 2014 07:35:02 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46654) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrQwr-0001Cl-IZ for qemu-devel@nongnu.org; Thu, 20 Nov 2014 07:34:57 -0500 Message-ID: <546DDFE9.8030800@redhat.com> Date: Thu, 20 Nov 2014 13:34:49 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1405998056-10674-1-git-send-email-chen.fan.fnst@cn.fujitsu.com> In-Reply-To: <1405998056-10674-1-git-send-email-chen.fan.fnst@cn.fujitsu.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] [PATCH] i386/helper: add cpu dump APIC information List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Chen Fan , qemu-devel@nongnu.org Cc: Marcelo Tosatti On 22/07/2014 05:00, Chen Fan wrote: > When KVM exit reason is KVM_EXIT_SHUTDOWN, there will cause > guest to reset, but we can't get any information to fix. > we knew KVM handle triple fault will set exit_reason to > KVM_EXIT_SHUTDOWN, so we also should dump the APIC information > to help to fix. > > Signed-off-by: Chen Fan Hi, old (16-bit) guests will triple fault in order to get out of protected mode, so it's not possible to dump anything when you get KVM_EXIT_SHUTDOWN. :( Paolo