| Summary: | irqbalance stops after less than a minute of running | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Stan King <stanley.king> | ||||
| Component: | irqbalance | Assignee: | Neil Horman <nhorman> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 16 | CC: | anton, nhorman | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-10-28 14:50:31 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Attachments: |
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This is working as designed. Given that the system in question here contains only a single cache domain encompassing both cpus, there is very little purpose to migrating irqs between cpus as they will hit the same cache regardless. So irqbalance balances irqs once, and exits, to save on cpu time. |
Created attachment 530597 [details] dmesg output from computer with the described failure Description of problem: The irqbalance process is exiting after a short period of time. I would expect it to last longer. Version-Release number of selected component (if applicable): irqbalance-1.0-3.fc16.i686 How reproducible: This occurs on 5 of my 7 systems. Steps to Reproduce: 1. Boot system 2. Periodically run "ps -ef | grep irqbalance" to check for irqbalance running 3. Actual results: irqbalance exits very soon Expected results: irqbalance should remain running Additional info: I've added this machine's dmesg output in hopes that may be useful. Here is the output from "irqbalance --debug", passed through "fold -70" in order to wrap a long line. This machine seems not NUMA capable. Package 0: numa_node is -1 cpu mask is 00000003 (load 0) Cache domain 0: numa_node is -1 cpu mask is 00000003 (load 0 ) CPU number 0 numa_node is -1 (load 0) CPU number 1 numa_node is -1 (load 0) Adding IRQ 40 to database Adding IRQ 41 to database Adding IRQ 42 to database Adding IRQ 21 to database Adding IRQ 22 to database Adding IRQ 18 to database Adding IRQ 23 to database DROPPING DUPLICATE ENTRY FOR IRQ 21 on path /sys/bus/pci/devices/0000: 00:1d.7 DROPPING DUPLICATE ENTRY FOR IRQ 23 on path /sys/bus/pci/devices/0000: 00:1e.2 Adding IRQ 16 to database Adding IRQ 20 to database Adding IRQ 17 to database DROPPING DUPLICATE ENTRY FOR IRQ 16 on path /sys/bus/pci/devices/0000: 01:00.0 DROPPING DUPLICATE ENTRY FOR IRQ 16 on path /sys/bus/pci/devices/0000: 01:00.1 DROPPING DUPLICATE ENTRY FOR IRQ 16 on path /sys/bus/pci/devices/0000: 02:00.0 DROPPING DUPLICATE ENTRY FOR IRQ 18 on path /sys/bus/pci/devices/0000: 04:02.0 DROPPING DUPLICATE ENTRY FOR IRQ 16 on path /sys/bus/pci/devices/0000: 05:08.0 Adding IRQ 11 to database DROPPING DUPLICATE ENTRY FOR IRQ 17 on path /sys/bus/pci/devices/0000: 05:09.0 Adding IRQ 10 to database DROPPING DUPLICATE ENTRY FOR IRQ 18 on path /sys/bus/pci/devices/0000: 05:0a.0 Adding IRQ 3 to database Adding IRQ 19 to database Adding IRQ 9 to database NUMA NODE NUMBER: -1 LOCAL CPU MASK: ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff, ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fffffff f,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fffff fff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fff fffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,f fffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff ,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffff ff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffff ffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ff ffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff, ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fffffff f,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fffff fff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,fff fffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,f fffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff ,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffff ff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff ---------------------------------------------------------------------- ------- Package 0: numa_node is -1 cpu mask is 00000003 (load 0) Cache domain 0: numa_node is -1 cpu mask is 00000003 (load 0 ) CPU number 0 numa_node is -1 (load 0) CPU number 1 numa_node is -1 (load 0)