From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: crash of latest trunk on SMP Date: Tue, 30 Jan 2007 09:48:23 +0100 Message-ID: <20070130084823.GA15490@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-devel Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org FYI, UP works fine, but a 32-bit SMP host crashes with latest trunk: BUG: at arch/i386/kernel/smp.c:177 send_IPI_mask_bitmask() [] show_trace_log_lvl+0x19/0x2e [] show_trace+0x12/0x14 [] dump_stack+0x14/0x16 [] send_IPI_mask_bitmask+0x55/0xb0 [] send_IPI_mask+0x8/0xa [] smp_call_function_single+0x100/0x14d [] vcpu_clear+0x33/0x49 [] vmx_vcpu_load+0x39/0xd2 [] kvm_dev_ioctl+0x181/0x10be [] do_ioctl+0x21/0x66 [] vfs_ioctl+0x255/0x268 [] sys_ioctl+0x48/0x62 [] syscall_call+0x7/0xb ======================= i suspect vcpu->cpu might be something uninitialized, like -1? Ingo ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV