Description of problem: Started desktop from command line with "startx" command. Was notified of kernel fault. Additional info: reporter: libreport-2.2.2 WARNING: CPU: 2 PID: 450 at drivers/iommu/intel-iommu.c:3254 quirk_ioat_snb_local_iommu+0xcb/0xe0() BIOS assigned incorrect VT-d unit for Intel(R) QuickData Technology device Modules linked in: parport snd_timer(+) ioatdma(+) snd i5400_edac soundcore edac_core tpm_tis tpm i5k_amb shpchp nouveau video mxm_wmi wmi firewire_ohci igb drm_kms_helper ttm ptp firewire_core pps_core crc_itu_t drm ata_generic dca parport_pc 00:0b: reported by Plug and Play ACPI parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE,EPP] pata_acpi i2c_algo_bit i2c_core CPU: 2 PID: 450 Comm: systemd-udevd Not tainted 3.14.2-200.fc20.x86_64 #1 Hardware name: Supermicro X7DWA/X7DWA, BIOS 1.2c 11/19/2010 0000000000000000 00000000dfb0944c ffff8802235359b0 ffffffff816eec92 ffff8802235359f8 ffff8802235359e8 ffffffff8108a1bd ffff880223cbd000 ffffffff81ab80d8 ffff8802223b5580 ffff880223cbd000 0000000000000000 Call Trace: [<ffffffff816eec92>] dump_stack+0x45/0x56 [<ffffffff8108a1bd>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8108a2b4>] warn_slowpath_fmt_taint+0x54/0x70 [<ffffffff815ba99b>] quirk_ioat_snb_local_iommu+0xcb/0xe0 [<ffffffff8139ef07>] pci_fixup_device+0x107/0x240 [<ffffffff813926ac>] do_pci_enable_device+0x7c/0xf0 [<ffffffff81393cd8>] pci_enable_device_flags+0xe8/0x140 [<ffffffff81393de5>] pcim_enable_device+0x55/0xb0 [<ffffffffa02df088>] ioat_pci_probe+0x18/0x1b0 [ioatdma] [<ffffffff81394a55>] local_pci_probe+0x45/0xa0 [<ffffffff81395e49>] pci_device_probe+0xf9/0x150 [<ffffffff81464e25>] driver_probe_device+0x125/0x3a0 [<ffffffff81465173>] __driver_attach+0x93/0xa0 [<ffffffff814650e0>] ? __device_attach+0x40/0x40 [<ffffffff81462c53>] bus_for_each_dev+0x73/0xc0 [<ffffffff814647de>] driver_attach+0x1e/0x20 [<ffffffff81464390>] bus_add_driver+0x180/0x250 [<ffffffffa02f0000>] ? 0xffffffffa02effff [<ffffffff814657f4>] driver_register+0x64/0xf0 [<ffffffffa02f0000>] ? 0xffffffffa02effff [<ffffffff813943fc>] __pci_register_driver+0x4c/0x50 [<ffffffffa02f0089>] ioat_init_module+0x89/0x1000 [ioatdma] [<ffffffff8100216a>] do_one_initcall+0xfa/0x1b0 [<ffffffff8105a953>] ? set_memory_nx+0x43/0x50 [<ffffffff811059ed>] load_module+0x1e2d/0x25c0 [<ffffffff81101070>] ? store_uevent+0x70/0x70 [<ffffffff811ef550>] ? kernel_read+0x50/0x80 [<ffffffff81106336>] SyS_finit_module+0xa6/0xd0 [<ffffffff816ff029>] system_call_fastpath+0x16/0x1b
Created attachment 892041 [details] File: dmesg
This message informs you that your BIOS is broken. You need to contact your HW vendor. "BIOS assigned incorrect VT-d unit for Intel(R) QuickData Technology device" Nothing we can really do here. *** This bug has been marked as a duplicate of bug 710546 ***