Description of problem: Seeing the following on a new HP zv6000 Athlon 64 laptop with rawhide: <7>APIC error on CPU0: 00(40) Losing some ticks... checking if CPU frequency changed. APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) APIC error on CPU0: 40(40) .... not sure if it is causing any problems. Version-Release number of selected component (if applicable): kernel-2.6.14-1.1740_FC5
I've checked a fix into CVS that should suppress these messages. Will be in build 1744 and higher.
Indeed, don't see them with 1749.
Can you paste the lspci output of this please ?
(In reply to comment #3) > Can you paste the lspci output of this please ? > [root@adelie ~]# lspci 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge 00:01.0 PCI bridge: ATI Technologies Inc Unknown device 5a3f 00:04.0 PCI bridge: ATI Technologies Inc Unknown device 5a36 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller 00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 10) 00:14.1 IDE interface: ATI Technologies Inc Standard Dual Channel PCI IDE Controller ATI 00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge 00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge 00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400 AC'97 Audio Controller (rev 01) 00:14.6 Modem: ATI Technologies Inc ATI SB400 - AC'97 Modem Controller (rev 01) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:05.0 VGA compatible controller: ATI Technologies Inc ATI Radeon XPRESS 200M 5955 (PCIE) 03:00.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) 03:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02) 03:04.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller 03:04.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller 03:04.4 Class 0805: Texas Instruments PCI6411, PCI6421, PCI6611, PCI6621, PCI7411, PCI7421, PCI7611, PCI7621 Secure Digital (SD) Controller 03:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) [root@adelie ~]# lspci -n 00:00.0 0600: 1002:5950 00:01.0 0604: 1002:5a3f 00:04.0 0604: 1002:5a36 00:13.0 0c03: 1002:4374 00:13.1 0c03: 1002:4375 00:13.2 0c03: 1002:4373 00:14.0 0c05: 1002:4372 (rev 10) 00:14.1 0101: 1002:4376 00:14.3 0601: 1002:4377 00:14.4 0604: 1002:4371 00:14.5 0401: 1002:4370 (rev 01) 00:14.6 0703: 1002:4378 (rev 01) 00:18.0 0600: 1022:1100 00:18.1 0600: 1022:1101 00:18.2 0600: 1022:1102 00:18.3 0600: 1022:1103 01:05.0 0300: 1002:5955 03:00.0 0c00: 104c:8023 03:02.0 0280: 14e4:4318 (rev 02) 03:04.0 0607: 104c:8031 03:04.3 0180: 104c:8033 03:04.4 0805: 104c:8034 03:06.0 0200: 10ec:8139 (rev 10)
Also, with 2.6.15-1.1955_FC5 I see these: ACPI Error (nsxfeval-0242): Handle is NULL and Pathname is relative [20060127] Will try the latest soon and see...
There's some strange things about apic setup on newer ATI chipsets, but sadly there's no documentation on them :-/ upstream is continuing to try different approaches to fixing this problem. the messages are suppressed for now at least.