Description of problem: My cpus are constantly at full speed because the system is servicing hardware interupts 50% of the time. modprobe -r ehci_hcd gets rid of that load Version-Release number of selected component (if applicable): All f9 kernels I tried How reproducible: 100% Steps to Reproduce: 1. run top, watch hi at ~ 50% top - 23:37:09 up 23:05, 4 users, load average: 0.15, 0.11, 0.15 Tasks: 156 total, 3 running, 153 sleeping, 0 stopped, 0 zombie Cpu(s): 1.5%us, 0.7%sy, 0.0%ni, 47.7%id, 0.2%wa, 50.0%hi, 0.0%si, 0.0%st Mem: 903804k total, 888676k used, 15128k free, 23544k buffers Swap: 2047476k total, 128k used, 2047348k free, 482308k cached 2. modprobe -r ehci_hcd 3. watch hi go down to 0% top - 23:37:37 up 23:06, 4 users, load average: 0.21, 0.13, 0.15 Tasks: 156 total, 1 running, 155 sleeping, 0 stopped, 0 zombie Cpu(s): 5.8%us, 2.0%sy, 0.0%ni, 92.1%id, 0.2%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 903804k total, 887692k used, 16112k free, 23480k buffers Swap: 2047476k total, 128k used, 2047348k free, 480916k cached Actual results: The system is running at full speed spending a lot of time servicing ehci_hcd interrupts Expected results: ehci_hcd works Additional info: I need noapic to boot and irqpoll if I want to use usb devices. root@tobslap:/proc# lspci 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:05.0 VGA compatible controller: nVidia Corporation MCP51 PCI-X GeForce Go 6100 (rev a2) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev f1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev f1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 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 03:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 02)
Can you post the output of the dmidecode command as an attachment? Also, try adding: io_delay=0xed to the boot options instead of 'noapic irqpoll'.
Created attachment 314793 [details] dmidecode output
[sorry if this is a dupe but bugzilla bugged when I tried to attach the file] > Can you post the output of the dmidecode command as an attachment? sure, it's attached > Also, try adding: > > io_delay=0xed > >to the boot options instead of 'noapic irqpoll'. YES. That fixed it: no pre hi and working usb2 and apic! I also managed to suspend/resume to ram (haven't tried it in while so may be unrelated). Hibernation freezes on resume after reading 100% from swap and printing suspending console(s). Thanks again! Tobias
kernel-2.6.26.3-27.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/kernel-2.6.26.3-27.fc9
Hello, I'm running 2.6.26.3-27.fc9 and things appear to be running as with the standard 2.6.25.x fedora kernel but I don't need io_delay any more. Just like with that kernel, my fans are spinning constantly at low speed though. As I'm typing this I notice that the keyboard feels warmer than usual too... Cheers Tobias
kernel-2.6.26.3-29.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/kernel-2.6.26.3-29.fc9
kernel-2.6.26.3-29.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.