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XenoTerraCide
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Joined: 18 Jan 2004
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Location: MI, USA
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 Posted: Mon Feb 13, 2006 9:22 am Post subject: dmesg: APIC error on CPU0: 40(40) |
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what does this mean? | Code: | APIC error on CPU0: 40(40)
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and how do I fix it. I'm running a athlon64 in an x86 environment. 2.6.15-gentoo-r1 kernel.
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mbar
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Joined: 19 Jan 2005
Posts: 1991
Location: Poland
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| Posted: Mon Feb 13, 2006 11:21 am Post subject: |
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| Does your mainboard have SiS chipset? |
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XenoTerraCide
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Joined: 18 Jan 2004
Posts: 1418
Location: MI, USA
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| Posted: Mon Feb 13, 2006 11:26 am Post subject: |
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not that I'm aware of. It's an ATI chipset. lspci | Code: | 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
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 Contro ller 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] HyperTra nsport 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 Con troller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscella neous Control
01:05.0 VGA compatible controller: ATI Technologies Inc ATI Radeon XPRESS 200M 5 955 (PCIE)
03:00.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Cont roller (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, PCI741 1, PCI7421, PCI7611, PCI7621 Secure Digital (SD) Controller
03:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139 C+ (rev 10)
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I did see this was a common problem with the Sis chipset, but as far as I know this doesn't have one.
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didumos
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Joined: 19 Jan 2006
Posts: 322
Location: uk
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| Posted: Mon Mar 13, 2006 11:32 pm Post subject: |
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That looks like the same (at least similar, maybe a later revision) chipset that I (and others) have had numerous problems with, many of which are still unsolved to some extent.
I'm currently running this chipset on my local media/file server which has an uptime of about 15 days and out of the 20491 lines in /var/log/messages, 8571 consist of the message "APIC error on CPU0: 40(40)". Interestingly it doesn't seem to have a noticeable affect on performance; network seems to be stable, hdparm reports good read speeds, etc. I should mention that i'm booting with the "no_timer_check" kernel option, which (IIRC) was implemeted as a direct fix for the fast (double speed) clock problems which many people had (and I still do without this option enabled) with this chipset.
One worrying thing, however, is that there are 12 instances of the message "Losing some ticks... checking if CPU frequency changed." in the log, and 6 instances of the following:
| Code: | warning: many lost ticks.
Your time source seems to be instable or some driver is hogging interupts
rip acpi_processor_idle+0x12e/0x380 |
So, i'm sorry I can't offer any solution to this but i'd be very interested if someone was to come up with any ideas for a fix. It has been a while since i've looked around for any updates on these issues (still running a 2.6.14 kernel) so I hope someone has got to the bottom of this.
Hardware:
AMD Athlon(tm) 64 Processor 3000+
MSI RS480M2-IL Motherboard
| Code: | lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge
00:01.0 PCI bridge: ATI Technologies Inc Unknown device 5a3f
00:11.0 IDE interface: ATI Technologies Inc ATI 437A Serial ATA Controller
00:12.0 IDE interface: ATI Technologies Inc ATI 4379 Serial ATA Controller
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 04)
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
01:05.0 VGA compatible controller: ATI Technologies Inc RS480 [Radeon Xpress 200G Series]
02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) |
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XenoTerraCide
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Joined: 18 Jan 2004
Posts: 1418
Location: MI, USA
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| Posted: Tue Mar 14, 2006 12:39 am Post subject: |
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I had 2 causes for losing ticks... one was a defect that required a bios update from HP. The second was AMD's PowerNOW in the kernel. by fixing both of those I fixed my losing tics and unstable time source.
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gour
Apprentice
Joined: 16 Apr 2003
Posts: 231
Location: Zagreb, Croatia
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| Posted: Sun Mar 19, 2006 9:49 am Post subject: |
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| XenoTerraCide wrote: | | I had 2 causes for losing ticks... one was a defect that required a bios update from HP. The second was AMD's PowerNOW in the kernel. by fixing both of those I fixed my losing tics and unstable time source. |
I am having similar issue with my hp nx6125 laptop.
Can you, please, provide some more info, i.e.
a) what laptop do you have?
b) how did you fix PowerNOW in kernel?
Sincerely,
Gour |
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XenoTerraCide
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Joined: 18 Jan 2004
Posts: 1418
Location: MI, USA
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| Posted: Sun Mar 19, 2006 4:45 pm Post subject: |
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HP Pavillion zv6000. I removed AMD Powernow from the kernel.
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gour
Apprentice
Joined: 16 Apr 2003
Posts: 231
Location: Zagreb, Croatia
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| Posted: Sun Mar 19, 2006 8:57 pm Post subject: |
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| XenoTerraCide wrote: | | HP Pavillion zv6000. I removed AMD Powernow from the kernel. |
Do you still, i.e. after removing Powernow from kernel, have ability to scale CPU freq 
Sincerely,
Gour |
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XenoTerraCide
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Joined: 18 Jan 2004
Posts: 1418
Location: MI, USA
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| Posted: Sun Mar 19, 2006 11:51 pm Post subject: |
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yeah you can do the cpu scaling with the other governors I believe I haven't played with it that much. But it won't do it on it won't do it on it's own by default, which is what powernow does.
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