https://bugzilla.kernel.org/show_bug.cgi?id=68591
--- Comment #6 from Bodo Eggert <7egg...@gmx.de> --- commit 7bc5e3f2be32ae6fb0c74cd0f707f986b3a01a26 Author: Bjorn Helgaas <bjorn.helg...@hp.com> Date: Tue Feb 23 10:24:41 2010 -0700 x86/PCI: use host bridge _CRS info by default on 2008 and newer machines The main benefit of using ACPI host bridge window information is that we can do better resource allocation in systems with multiple host bridges, e.g., http://bugzilla.kernel.org/show_bug.cgi?id=14183 Sometimes we need _CRS information even if we only have one host bridge, e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/341681 Most of these systems are relatively new, so this patch turns on "pci=use_crs" only on machines with a BIOS date of 2008 or newer. Signed-off-by: Bjorn Helgaas <bjorn.helg...@hp.com> Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org> ----------------------------------- pci=nocrs allows booting current kernels (kubuntu live 13.x), so this is the correct bug this time. What do you need to know for a workaround? Mainboard: Asrock M3A UCC BIOS Date: 08/26/11 Version: 1.40 (and 1.30) ---«lspci -nnM»-------------- 00:00.0 Host bridge [0600]: ATI Technologies Inc Radeon Xpress 200 (RS480/RS482/RX480/RX482) Chipset - Host bridge [1002:5951] (rev 01) 00:02.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI-X Root Port [1002:5a34] ## 00.02:0 is a bridge from 00 to 01-01 00:05.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI Bridge [1002:5a37] ## 00.05:0 is a bridge from 00 to 03-03 00:12.0 SATA controller [0106]: ATI Technologies Inc SB600 Non-Raid-5 SATA [1002:4380] 00:13.0 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI0) [1002:4387] 00:13.1 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI1) [1002:4388] 00:13.2 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI2) [1002:4389] 00:13.3 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI3) [1002:438a] 00:13.4 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI4) [1002:438b] 00:13.5 USB Controller [0c03]: ATI Technologies Inc SB600 USB Controller (EHCI) [1002:4386] 00:14.0 SMBus [0c05]: ATI Technologies Inc SBx00 SMBus Controller [1002:4385] (rev 13) 00:14.1 IDE interface [0101]: ATI Technologies Inc SB600 IDE [1002:438c] 00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia (Intel HDA) [1002:4383] 00:14.3 ISA bridge [0601]: ATI Technologies Inc SB600 PCI to LPC Bridge [1002:438d] 00:14.4 PCI bridge [0604]: ATI Technologies Inc SBx00 PCI to PCI Bridge [1002:4384] ## 00.14:4 is a bridge from 00 to 02-02 00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration [1022:1200] 00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Address Map [1022:1201] 00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller [1022:1202] 00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control [1022:1203] 00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Link Control [1022:1204] 01:00.0 VGA compatible controller [0300]: nVidia Corporation G92 [GeForce 9800 GT] [10de:0614] (rev a2) 02:05.0 Network controller [0280]: Cologne Chip Designs GmbH ISDN network controller [HFC-PCI] [1397:2bd0] (rev 02) 02:07.0 SCSI storage controller [0100]: Advanced Micro Devices [AMD] 53c974 [PCscsi] [1022:2020] (rev 10) 03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06) Summary of buses: 00: Primary host bus 14.4 Bridge to 02-02 05.0 Bridge to 03-03 02.0 Bridge to 01-01 01: Entered via 00:02.0 02: Entered via 00:14.4 03: Entered via 00:05.0 -- You are receiving this mail because: You are watching the assignee of the bug. ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla