Bug 622560
| Summary: | irqbalance unable to move IRQs for my NICs or HBAs | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Barry Marson <bmarson> | ||||
| Component: | irqbalance | Assignee: | Neil Horman <nhorman> | ||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Evan McNabb <emcnabb> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 6.0 | CC: | anton, dshaks, jhladky, mwagner, nhorman, syeghiay, ttracy | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | irqbalance-0.55-27 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-11-10 20:41:39 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 437687 [details]
untested patch recognice uninitalized affinty_hint code
looks like intel messed this up upstream too. we don't properly recognize when an affinity_hint file isn't initalized, and just take its value to be accurate, even if the affinity hint says to mark all cpus as eligible for interrupts, which defeats the purpose of irqbalance.
This patch should correct that. barry, if you could test it out please that would be great. Anton, if it works, if you could check it into RHEL, I'll put it upstream asap. Thanks!
Verfied that patch from comment #1, which was tested with rpm built at: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=2667962 Works. Thanks, Barry Thanks Barry! Anton, this is a problem in RHEL & Upstream. I'm committing it upstream and I've asked about getting this approved for 6.0GA. Please check it in as soon as possible. Thanks! Heard aarapov was on PTO, so I can handle this. Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you. |
Description of problem: Upgraded to RHEL6-snap10 and now irqbalance seems unable to move my IRQ's to different cpus. They are all pinned to cpu0 even when cpu0 is cpu bound 100% soft interrupts for minutes on end. Version-Release number of selected component (if applicable): RHEL6.0-20100805.0 How reproducible: shown on my bigi testbed. Steps to Reproduce: 1. 2. 3. Actual results: IRQ lines 16-19 all show activity at cpu0 only CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 0: 10550638 0 0 0 0 0 0 0 IO-APIC-edge timer 1: 8 0 0 0 0 0 0 0 IO-APIC-edge i8042 3: 2 0 0 0 0 0 0 0 IO-APIC-edge 4: 2 0 0 0 0 0 0 0 IO-APIC-edge 8: 1 0 0 0 0 0 0 0 IO-APIC-edge rtc0 9: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi acpi 12: 204 0 0 0 0 0 0 0 IO-APIC-edge i8042 14: 159 0 0 0 0 0 0 0 IO-APIC-edge ata_piix 15: 0 0 0 0 0 0 0 0 IO-APIC-edge ata_piix 16: 6702403 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb2, uhci_hcd:usb5, qla2xxx, qla2xxx 17: 20456475 0 0 0 0 0 0 0 IO-APIC-fasteoi qla2xxx, qla2xxx, eth2 18: 16403105 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb4, eth4, eth3 19: 5070080 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb3, eth5 22: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi hpilo 23: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1 24: 9827 1087 0 0 0 0 0 0 IO-APIC-fasteoi eth0 48: 22323 0 0 0 0 0 0 0 IO-APIC-fasteoi cciss0 NMI: 873 678 586 494 402 310 218 126 Non-maskable interrupts LOC: 0 10550199 10550127 10550053 10549983 10549899 10549839 10549766 Local timer interrupts SPU: 0 0 0 0 0 0 0 0 Spurious interrupts PMI: 0 0 0 0 0 0 0 0 Performance monitoring interrupts PND: 0 0 0 0 0 0 0 0 Performance pending work RES: 524127 1456325 1382514 1408790 1431045 1470127 1428419 1382738 Rescheduling interrupts CAL: 35098 2140300 2063262 2119711 2115830 2176595 2105168 2024001 Function call interrupts TLB: 1470 1577 1709 1626 1591 1193 1220 1401 TLB shootdowns TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts MCE: 0 0 0 0 0 0 0 0 Machine check exceptions MCP: 36 36 36 36 36 36 36 36 Machine check polls ERR: 7 MIS: 0 Expected results: Additional info: