Connectrix Cisco – Switchen stängs av på grund av kernelpanik
Summary: MDS-switchen låg nere och laddades inte om efter kernelpanik. Var tvungen att slå PÅ strömbrytaren manuellt
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Symptoms
Utdata från Stack-Trace visar endast 5 av 6 CPU:er online på grund av vilken Switch som var offline och inte laddades om.
"Visa orsak till systemåterställning"
----- återställningsorsak för modul 1 (från Supervisor i kortplats 1) ---
1) Vid 65175 usecs efter Tue Oct 13 02:48:39 2020
Orsak: Kernel Panic
Tjänst:
Version: 8.1.1a
"Visa loggning NVRAM"
2020 Oct 14 18:44:02.277 switch %SYSLOG-2-SYSTEM_MSG : Syslogs brukar loggas in i logflash förrän logflash är online
2020 Oct 14 18:44:05.851 switch %KERN-0-SYSTEM_MSG: [ 0.036807] Värdstyrenhet irq 55 - kernel
2020 Oct 14 18:44:05.880 switch %KERN-0-SYSTEM_MSG: [ 0.057612] Tilldela rotport irq 55 - kernel
2020 Oct 14 18:44:05.881 switch %KERN-0-SYSTEM_MSG: [ 0.057633] Värdstyrenhet irq 54 - kernel
2020 Oct 14 18:44:05.883 switch %KERN-0-SYSTEM_MSG: [ 0.059007] Tilldela rotport irq 54 - kernel
2020 Oct 14 18:44:05.912 switch %KERN-0-SYSTEM_MSG: [ 0.774555] Aktivera alla PCI-enheter -kernel'show
logging onboard module stack-trace'CPU
0
Call Trace:
[b0463bc4] do_raw_spin_lock+0xec/0x120(opålitlig)
[b0698738] dev_watchdog+0x58/0x29c
[b04324c4] call_timer_fn+0x48/0xfc
[b0432770] run_timer_softirq+0x1f4/0x248
[b042af38] __do_softirq+0x16c/0x368
[b042b428] irq_exit+0x68/0x90
[b040a3c8] timer_interrupt+0x204/0x278
[b040f388] ret_from_except+0x0/0x18
CPU 1-process: swapper/1 (pid 0)
Samtalsspårning:
[b04230a4] cpm_idle_wait+0x14/0x24(opålitlig)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/
0x48CPU 2-process: sysinfo (pid 3855)
Samtalsspårning:
[b0480d58] smp_call_function_many+0x268/0x274 (opålitlig)
[b04182f8] flush_tlb_mm+0x58/0x68
[b042532c] copy_process.part.69+0xbb0/0x11a0
[b0425a84] do_fork+0xd0/0x318
[b040ecac] ret_from_syscall+0x0/0x3c
CPU 3-process: swapper/3 (pid 0)
Samtalsspårning:
[B04230A4] cpm_idle_wait+0x14/0x24(opålitlig)
[B0469D4C] cpu_startup_entry+0x124/0x1e8
[B0410D78] start_secondary+0x1fc/0x200
[B0402234] start_secondary_47x+0x24/0x48
CPU 4-process: swapper/4 (pid 0)
Samtalsspårning:
[b04230a4] cpm_idle_wait+0x14/0x24(opålitlig)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[B0402234] start_secondary_47x+0x24/0x48
----- återställningsorsak för modul 1 (från Supervisor i kortplats 1) ---
1) Vid 65175 usecs efter Tue Oct 13 02:48:39 2020
Orsak: Kernel Panic
Tjänst:
Version: 8.1.1a
"Visa loggning NVRAM"
2020 Oct 14 18:44:02.277 switch %SYSLOG-2-SYSTEM_MSG : Syslogs brukar loggas in i logflash förrän logflash är online
2020 Oct 14 18:44:05.851 switch %KERN-0-SYSTEM_MSG: [ 0.036807] Värdstyrenhet irq 55 - kernel
2020 Oct 14 18:44:05.880 switch %KERN-0-SYSTEM_MSG: [ 0.057612] Tilldela rotport irq 55 - kernel
2020 Oct 14 18:44:05.881 switch %KERN-0-SYSTEM_MSG: [ 0.057633] Värdstyrenhet irq 54 - kernel
2020 Oct 14 18:44:05.883 switch %KERN-0-SYSTEM_MSG: [ 0.059007] Tilldela rotport irq 54 - kernel
2020 Oct 14 18:44:05.912 switch %KERN-0-SYSTEM_MSG: [ 0.774555] Aktivera alla PCI-enheter -kernel'show
logging onboard module stack-trace'CPU
0
Call Trace:
[b0463bc4] do_raw_spin_lock+0xec/0x120(opålitlig)
[b0698738] dev_watchdog+0x58/0x29c
[b04324c4] call_timer_fn+0x48/0xfc
[b0432770] run_timer_softirq+0x1f4/0x248
[b042af38] __do_softirq+0x16c/0x368
[b042b428] irq_exit+0x68/0x90
[b040a3c8] timer_interrupt+0x204/0x278
[b040f388] ret_from_except+0x0/0x18
CPU 1-process: swapper/1 (pid 0)
Samtalsspårning:
[b04230a4] cpm_idle_wait+0x14/0x24(opålitlig)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/
0x48CPU 2-process: sysinfo (pid 3855)
Samtalsspårning:
[b0480d58] smp_call_function_many+0x268/0x274 (opålitlig)
[b04182f8] flush_tlb_mm+0x58/0x68
[b042532c] copy_process.part.69+0xbb0/0x11a0
[b0425a84] do_fork+0xd0/0x318
[b040ecac] ret_from_syscall+0x0/0x3c
CPU 3-process: swapper/3 (pid 0)
Samtalsspårning:
[B04230A4] cpm_idle_wait+0x14/0x24(opålitlig)
[B0469D4C] cpu_startup_entry+0x124/0x1e8
[B0410D78] start_secondary+0x1fc/0x200
[B0402234] start_secondary_47x+0x24/0x48
CPU 4-process: swapper/4 (pid 0)
Samtalsspårning:
[b04230a4] cpm_idle_wait+0x14/0x24(opålitlig)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[B0402234] start_secondary_47x+0x24/0x48
Cause
En av CPU:erna var offline vilket gjorde att Switch stängdes av.
Resolution
Permanent lösning:
- Om alla sex processorerna inte är online byter du ut switchen och ser till att den nya switchen körs på NX-OS v8.4(1a) eller senare.
- Om alla sex processorerna är online uppgraderar du den fasta programvaran till NX-OS v8.4(1a) eller senare för att undvika att det upprepas.
Additional Information
Detta gäller endast för Cisco MDS-9396s-switchar
Affected Products
Connectrix MDS 9396SArticle Properties
Article Number: 000181486
Article Type: Solution
Last Modified: 07 Jan 2021
Version: 1
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