From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ivelin Ivanov Subject: Yet another kernel backtrace pointing at KVM Date: Sun, 28 Jun 2009 22:20:50 +0300 Message-ID: <4A47C292.9030907@sofiacom.bg> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: avi@redhat.com Return-path: Received: from cielo.sofiacom.bg ([195.138.130.100]:59174 "EHLO cielo.sofiacom.bg" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751102AbZF1Tcq (ORCPT ); Sun, 28 Jun 2009 15:32:46 -0400 Sender: kvm-owner@vger.kernel.org List-ID: Hello KVM team, I am using KVM for maintaining mixture of Windows and Linux VMs. The kernel version is 2.6.30. I am using the kernel's KVM module and qemu-kvm-0.86. Jun 26 15:23:25 pc187 kernel: ------------[ cut here ]------------ Jun 26 15:23:25 pc187 kernel: WARNING: at arch/x86/kvm/x86.c:204 kvm_queue_exception_e+0x24/0x45 [kvm]() Jun 26 15:23:25 pc187 kernel: Hardware name: IBM System x3650 -[7979B4G]- Jun 26 15:23:25 pc187 kernel: Modules linked in: 8021q garp tun reiserfs st ide_gd_mod ide_cd_mod bridge stp kvm_intel kvm ipv6 af_packet cpufr eq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq speedstep_lib loop dm_mod i5k_amb ibmpex i5000_edac ibmaem i2c_i801 iTCO_wdt i TCO_vendor_support rtc_cmos bnx2 sr_mod rtc_core ipmi_msghandler ses edac_core rtc_lib button pcspkr i2c_core cdrom serio_raw enclosure shpchp pci_hotplug joydev sg usbhid hid uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic ide_core ata_generic ata_ piix libata thermal processor thermal_sys hwmon aacraid scsi_mod Jun 26 15:23:25 pc187 kernel: Pid: 3452, comm: qemu-system-x86 Tainted: G W 2.6.30-9-pae #1 Jun 26 15:23:25 pc187 kernel: Call Trace: Jun 26 15:23:25 pc187 kernel: [] warn_slowpath_common+0x60/0x90 Jun 26 15:23:25 pc187 kernel: [] warn_slowpath_null+0xd/0x10 Jun 26 15:23:25 pc187 kernel: [] kvm_queue_exception_e+0x24/0x45 [kvm] Jun 26 15:23:25 pc187 kernel: [] kvm_task_switch+0xfb/0xada [kvm] Jun 26 15:23:25 pc187 kernel: [] ? kvm_inject_page_fault+0x5a/0x5f [kvm] Jun 26 15:23:25 pc187 kernel: [] ? kvm_mmu_page_fault+0x16/0x75 [kvm] Jun 26 15:23:25 pc187 kernel: [] handle_task_switch+0x6d/0x96 [kvm_intel] Jun 26 15:23:25 pc187 kernel: [] kvm_handle_exit+0x1c3/0x1e0 [kvm_intel] Jun 26 15:23:25 pc187 kernel: [] ? vmx_queue_exception+0xf9/0xfe [kvm_intel] Jun 26 15:23:25 pc187 kernel: [] kvm_arch_vcpu_ioctl_run+0x89d/0xab6 [kvm] Jun 26 15:23:25 pc187 kernel: [] ? do_sync_readv_writev+0xa1/0xdf Jun 26 15:23:25 pc187 kernel: [] kvm_vcpu_ioctl+0xec/0x602 [kvm] Jun 26 15:23:25 pc187 kernel: [] ? _spin_unlock+0xf/0x23 Jun 26 15:23:25 pc187 kernel: [] ? generic_smp_call_function_single_interrupt+0x6c/0x9e Jun 26 15:23:25 pc187 kernel: [] ? irq_exit+0x61/0x63 Jun 26 15:23:25 pc187 kernel: [] ? smp_call_function_single_interrupt+0x2d/0x2f Jun 26 15:23:25 pc187 kernel: [] ? call_function_single_interrupt+0x2a/0x30 Jun 26 15:23:25 pc187 kernel: [] ? kvm_vcpu_ioctl+0x0/0x602 [kvm] Jun 26 15:23:25 pc187 kernel: [] vfs_ioctl+0x22/0x69 Jun 26 15:23:25 pc187 kernel: [] do_vfs_ioctl+0x439/0x472 Jun 26 15:23:25 pc187 kernel: [] ? smp_call_function_single_interrupt+0x2d/0x2f Jun 26 15:23:25 pc187 kernel: [] ? call_function_single_interrupt+0x2a/0x30 Jun 26 15:23:25 pc187 kernel: [] ? fget_light+0x8a/0xb1 Jun 26 15:23:25 pc187 kernel: [] sys_ioctl+0x40/0x5a Jun 26 15:23:25 pc187 kernel: [] sysenter_do_call+0x12/0x28 Jun 26 15:23:25 pc187 kernel: ---[ end trace 9cc5a56b9c7eda33 ]--- Here is some more info: # uname -a Linux pc187 2.6.30-9-pae #1 SMP PREEMPT Wed Jun 17 15:29:59 EEST 2009 i686 i686 i386 GNU/Linux # qemu-system-x86_64 --version QEMU PC emulator version 0.10.50 (qemu-kvm-devel-86), Copyright (c) 2003-2008 Fabrice Bellard # modinfo /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko filename: /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko license: GPL author: Qumranet srcversion: 934CD9DB264501B0431438A depends: vermagic: 2.6.30-9-pae SMP preempt mod_unload modversions CORE2 parm: oos_shadow:bool parm: msi2intx:bool Hope to hear from you soon. Best regards, Ivelin Ivanov P.S. No mini-dumps were found in the WinXP VM