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interrupts_linux: Fix fields on aarch64 (#2631)
* interrupts_linux: Fix fields on aarch64 Fixes #2557 --------- Signed-off-by: Daniël van Eeden <git@myname.nl>
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Daniël van Eeden
GitHub
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8d3c594346
61
collector/fixtures/proc/interrupts_aarch64
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61
collector/fixtures/proc/interrupts_aarch64
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@ -0,0 +1,61 @@
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CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
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10: 3287008667 3310445093 3301386305 3273132897 3368262064 3641875466 3360412019 3225020442 GICv3 27 Level arch_timer
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14: 7815 0 0 4 0 0 0 0 GICv3 37 Level ttyS0
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17: 0 0 0 0 0 0 0 0 GICv3 48 Edge ACPI:Ged
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18: 0 0 0 0 0 0 0 0 GICv3 49 Edge ACPI:Ged
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19: 0 0 0 0 0 0 0 0 GICv3 50 Edge ACPI:Ged
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20: 0 0 0 0 0 0 0 0 GICv3 51 Edge ACPI:Ged
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21: 0 0 0 0 0 0 0 0 GICv3 52 Edge ACPI:Ged
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22: 0 0 0 0 0 0 0 0 GICv3 53 Edge ACPI:Ged
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23: 0 0 0 0 0 0 0 0 GICv3 54 Edge ACPI:Ged
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24: 0 0 0 0 0 0 0 0 GICv3 55 Edge ACPI:Ged
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25: 0 0 0 0 0 0 0 0 GICv3 56 Edge ACPI:Ged
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26: 0 0 0 0 0 0 0 0 GICv3 57 Edge ACPI:Ged
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27: 0 0 0 0 0 0 0 0 GICv3 58 Edge ACPI:Ged
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28: 0 0 0 0 0 0 0 0 GICv3 59 Edge ACPI:Ged
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29: 0 0 0 0 0 0 0 0 GICv3 60 Edge ACPI:Ged
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30: 0 0 0 0 0 0 0 0 GICv3 61 Edge ACPI:Ged
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31: 0 0 0 0 0 0 0 0 GICv3 62 Edge ACPI:Ged
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32: 0 0 0 0 0 0 0 0 GICv3 63 Edge ACPI:Ged
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33: 0 0 0 0 0 0 0 0 GICv3 64 Edge ACPI:Ged
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34: 0 0 0 0 0 0 0 0 GICv3 65 Edge ACPI:Ged
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35: 0 0 0 0 0 0 0 0 GICv3 66 Edge ACPI:Ged
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36: 0 0 0 0 0 0 0 0 GICv3 67 Edge ACPI:Ged
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37: 0 0 0 0 0 0 0 0 GICv3 68 Edge ACPI:Ged
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38: 0 0 0 0 0 0 0 0 GICv3 69 Edge ACPI:Ged
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39: 0 0 0 0 0 0 0 0 GICv3 70 Edge ACPI:Ged
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40: 0 0 0 0 0 0 0 0 GICv3 71 Edge ACPI:Ged
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41: 0 0 0 0 0 0 0 0 GICv3 72 Edge ACPI:Ged
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42: 0 0 0 0 0 0 0 0 GICv3 73 Edge ACPI:Ged
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43: 0 0 0 0 0 0 0 0 GICv3 74 Edge ACPI:Ged
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44: 0 0 0 0 0 0 0 0 GICv3 75 Edge ACPI:Ged
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45: 0 0 0 0 0 0 0 0 GICv3 76 Edge ACPI:Ged
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46: 0 0 0 0 0 0 0 0 GICv3 77 Edge ACPI:Ged
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47: 0 0 0 0 0 0 0 0 GICv3 78 Edge ACPI:Ged
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48: 0 0 0 0 0 0 0 0 GICv3 79 Edge ACPI:Ged
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49: 0 0 0 0 0 0 0 0 GICv3 23 Level arm-pmu
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50: 0 0 0 0 0 0 0 0 ARMH0061:00 3 Edge ACPI:Event
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51: 13 0 0 20 4 0 0 0 ITS-MSI 65536 Edge nvme0q0
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52: 0 9 0 0 0 5 20 0 ITS-MSI 507904 Edge nvme1q0
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53: 129969327 0 0 0 0 0 0 0 ITS-MSI 65537 Edge nvme0q1
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54: 0 0 0 0 126913956 0 0 0 ITS-MSI 65538 Edge nvme0q2
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55: 0 199619844 0 0 0 0 0 0 ITS-MSI 507905 Edge nvme1q1
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56: 0 0 0 0 0 198494086 0 0 ITS-MSI 507906 Edge nvme1q2
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57: 0 0 51 0 0 32479308 0 0 ITS-MSI 81920 Edge ena-mgmnt@pci:0000:00:05.0
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58: 0 0 1195697946 437 0 0 0 0 ITS-MSI 81921 Edge eth0-Tx-Rx-0
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59: 0 0 0 2709937608 1619 0 0 0 ITS-MSI 81922 Edge eth0-Tx-Rx-1
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60: 0 1457922109 0 0 0 71 0 0 ITS-MSI 81923 Edge eth0-Tx-Rx-2
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61: 2052879736 0 0 0 0 0 124 0 ITS-MSI 81924 Edge eth0-Tx-Rx-3
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62: 0 0 0 0 0 0 2268695629 1530 ITS-MSI 81925 Edge eth0-Tx-Rx-4
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63: 50 0 0 0 0 0 0 1997799253 ITS-MSI 81926 Edge eth0-Tx-Rx-5
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64: 0 48 0 0 1238622585 0 0 0 ITS-MSI 81927 Edge eth0-Tx-Rx-6
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65: 0 0 47 0 0 0 0 1574978449 ITS-MSI 81928 Edge eth0-Tx-Rx-7
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IPI0:2768808080 2844211768 2878602432 2730576120 2723524623 3349096412 2717389879 2154252810 Rescheduling interrupts
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IPI1: 357815098 213258177 153713187 132890624 124746406 123498004 122386326 120728639 Function call interrupts
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IPI2: 0 0 0 0 0 0 0 0 CPU stop interrupts
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IPI3: 0 0 0 0 0 0 0 0 CPU stop (for crash dump) interrupts
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IPI4: 0 0 0 0 0 0 0 0 Timer broadcast interrupts
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IPI5: 0 0 0 0 0 0 0 0 IRQ work interrupts
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IPI6: 0 0 0 0 0 0 0 0 CPU wake-up interrupts
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Err: 0
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@ -77,22 +77,29 @@ func parseInterrupts(r io.Reader) (map[string]interrupt, error) {
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cpuNum := len(strings.Fields(scanner.Text())) // one header per cpu
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for scanner.Scan() {
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parts := strings.Fields(scanner.Text())
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if len(parts) < cpuNum+2 { // irq + one column per cpu + details,
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continue // we ignore ERR and MIS for now
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}
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intName := parts[0][:len(parts[0])-1] // remove trailing :
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intr := interrupt{
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values: parts[1 : cpuNum+1],
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}
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// On aarch64 there can be zero space between the name/label
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// and the values, so we need to split on `:` before using
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// strings.Fields() to split on fields.
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group := strings.SplitN(scanner.Text(), ":", 2)
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if len(group) > 1 {
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parts := strings.Fields(group[1])
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if _, err := strconv.Atoi(intName); err == nil { // numeral interrupt
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intr.info = parts[cpuNum+1]
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intr.devices = strings.Join(parts[cpuNum+2:], " ")
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} else {
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intr.info = strings.Join(parts[cpuNum+1:], " ")
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if len(parts) < cpuNum+1 { // irq + one column per cpu + details,
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continue // we ignore ERR and MIS for now
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}
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intName := strings.TrimLeft(group[0], " ")
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intr := interrupt{
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values: parts[0:cpuNum],
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}
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if _, err := strconv.Atoi(intName); err == nil { // numeral interrupt
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intr.info = parts[cpuNum]
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intr.devices = strings.Join(parts[cpuNum+1:], " ")
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} else {
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intr.info = strings.Join(parts[cpuNum:], " ")
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}
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interrupts[intName] = intr
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}
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interrupts[intName] = intr
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}
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return interrupts, scanner.Err()
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@ -31,10 +31,39 @@ func TestInterrupts(t *testing.T) {
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}
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if want, got := "5031", interrupts["NMI"].values[1]; want != got {
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t.Errorf("want interrupts %s, got %s", want, got)
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t.Errorf("want interrupts value %s, got %s", want, got)
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}
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if want, got := "4968", interrupts["NMI"].values[3]; want != got {
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t.Errorf("want interrupts %s, got %s", want, got)
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t.Errorf("want interrupts value %s, got %s", want, got)
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}
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if want, got := "IR-IO-APIC-edge", interrupts["12"].info; want != got {
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t.Errorf("want interrupts info %s, got %s", want, got)
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}
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if want, got := "i8042", interrupts["12"].devices; want != got {
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t.Errorf("want interrupts devices %s, got %s", want, got)
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}
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}
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// https://github.com/prometheus/node_exporter/issues/2557
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// On aarch64 the interrupts file can have zero spaces between the label of
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// the row and the first value if the value is large
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func TestInterruptsArm(t *testing.T) {
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file, err := os.Open("fixtures/proc/interrupts_aarch64")
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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interrupts, err := parseInterrupts(file)
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if err != nil {
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t.Fatal(err)
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}
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if _, ok := interrupts["IPI0"]; !ok {
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t.Errorf("IPI0 label not found in interrupts")
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}
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}
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