Hello KVM team, I am using KVM for maintaining mixture of Windows and Linux VMs. recently I reinstalled the system with latest kernel 2.6.30 and qemu-kvm-0.86. I kept using the KVM module from the 2.6.30 kernel not from the pack with the qemu-kvm. Last night one of the Windows XP SP3 system rebooted and I found the following trace in my logs: ------------[ cut here ]------------ WARNING: at arch/x86/kvm/x86.c:204 kvm_queue_exception_e+0x24/0x45 [kvm]() Hardware name: IBM System x3650 -[7979B4G]- Modules linked in: 8021q garp tun reiserfs st ide_gd_mod ide_cd_mod bridge stp kvm_intel kvm ipv6 af_packet cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq speedstep_lib loop dm_mod i5k_amb ibmpex i5000_edac ibmaem i2c_i801 iTCO_wdt iTCO_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 Pid: 26872, comm: qemu-system-x86 Not tainted 2.6.30-9-pae #1 Call Trace: [<c012eda8>] warn_slowpath_common+0x60/0x90 [<c012ede5>] warn_slowpath_null+0xd/0x10 [<f7fea423>] kvm_queue_exception_e+0x24/0x45 [kvm] [<f7feb509>] kvm_task_switch+0xfb/0xada [kvm] [<c03441e2>] ? _spin_unlock+0xf/0x23 [<f7ff041e>] ? kvm_mmu_page_fault+0x16/0x75 [kvm] [<f805dea3>] handle_task_switch+0x6d/0x96 [kvm_intel] [<f805e3fd>] kvm_handle_exit+0x1c3/0x1e0 [kvm_intel] [<f7feb11a>] kvm_arch_vcpu_ioctl_run+0x89d/0xab6 [kvm] [<c01a7cfd>] ? do_sync_readv_writev+0xa1/0xdf [<f7fe34ef>] kvm_vcpu_ioctl+0xec/0x602 [kvm] [<c03441e2>] ? _spin_unlock+0xf/0x23 [<f7fe3403>] ? kvm_vcpu_ioctl+0x0/0x602 [kvm] [<c01b2fe7>] vfs_ioctl+0x22/0x69 [<c01b3467>] do_vfs_ioctl+0x439/0x472 [<c0190277>] ? unmap_region+0x10a/0x124 [<c01a8e52>] ? fget_light+0x8a/0xb1 [<c01b34e0>] sys_ioctl+0x40/0x5a [<c0102b0c>] sysenter_do_call+0x12/0x28 ---[ end trace 9cc5a56b9c7eda31 ]--- 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 Do I do something wrong or is it a bug in KVM ? Thanks for the great work! Hope to hear from you soon. Best regards, Ivelin Ivanov P.S. Please, don't hesitate to ask me if you need any more info to trace this issue. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
