Connectrix Cisco - Switch is uitgeschakeld vanwege kernelpanic
Summary: MDS-switch was uitgeschakeld en niet opnieuw geladen na kernelpanic. Moest de switch handmatig AAN zetten
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Symptoms
De uitvoer van Stack-Trace toont slechts 5 van de 6 CPU's online, waardoor Switch offline was en niet opnieuw werd geladen.
'show system reset-reason'
----- reden van reset voor module 1 (van Supervisor in slot 1) ---
1) Bij 65175 usecs na Tue Oct 13 02:48:39 2020
Reden: Kernel Panic
Service:
Version: 8.1(1a)
'show logging nvram'
2020 Oct 14 18:44:02.277 switch %SYSLOG-2-SYSTEM_MSG : Syslogs worden pas aangemeld bij logflash als logflash online
is2020 Oct 14 18:44:05.851 switch %KERN-0-SYSTEM_MSG: [ 0.036807] Host controller irq 55 - kernel
2020 Oct 14 18:44:05.880 switch %KERN-0-SYSTEM_MSG: [ 0.057612] Assign root port irq 55 - kernel
2020 Oct 14 18:44:05.881 switch %KERN-0-SYSTEM_MSG: [ 0.057633] Host controller irq 54 - kernel
2020 Oct 14 18:44:05.883 switch %KERN-0-SYSTEM_MSG: [ 0.059007] Assign root port irq 54 - kernel
2020 Oct 14 18:44:05.912 switch %KERN-0-SYSTEM_MSG: [ 0.774555] Enabling all PCI devices -kernel'show
logging onboard module stack-trace'CPU
0
Call Trace:
[b0463bc4] do_raw_spin_lock+0xec/0x120(unreliable)
[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 Proces: swapper/1 (pid 0)
Oproeptracering:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/
0x48CPU 2 Proces: sysinfo (pid 3855)
Call Trace:
[b0480d58] smp_call_function_many+0x268/0x274(onbetrouwbaar)
[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 Proces: swapper/3 (pid 0)
Call Trace:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/0x48
CPU 4 Proces: swapper/4 (pid 0)
Oproeptracering:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/0x48
----- reden van reset voor module 1 (van Supervisor in slot 1) ---
1) Bij 65175 usecs na Tue Oct 13 02:48:39 2020
Reden: Kernel Panic
Service:
Version: 8.1(1a)
'show logging nvram'
2020 Oct 14 18:44:02.277 switch %SYSLOG-2-SYSTEM_MSG : Syslogs worden pas aangemeld bij logflash als logflash online
is2020 Oct 14 18:44:05.851 switch %KERN-0-SYSTEM_MSG: [ 0.036807] Host controller irq 55 - kernel
2020 Oct 14 18:44:05.880 switch %KERN-0-SYSTEM_MSG: [ 0.057612] Assign root port irq 55 - kernel
2020 Oct 14 18:44:05.881 switch %KERN-0-SYSTEM_MSG: [ 0.057633] Host controller irq 54 - kernel
2020 Oct 14 18:44:05.883 switch %KERN-0-SYSTEM_MSG: [ 0.059007] Assign root port irq 54 - kernel
2020 Oct 14 18:44:05.912 switch %KERN-0-SYSTEM_MSG: [ 0.774555] Enabling all PCI devices -kernel'show
logging onboard module stack-trace'CPU
0
Call Trace:
[b0463bc4] do_raw_spin_lock+0xec/0x120(unreliable)
[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 Proces: swapper/1 (pid 0)
Oproeptracering:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/
0x48CPU 2 Proces: sysinfo (pid 3855)
Call Trace:
[b0480d58] smp_call_function_many+0x268/0x274(onbetrouwbaar)
[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 Proces: swapper/3 (pid 0)
Call Trace:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/0x48
CPU 4 Proces: swapper/4 (pid 0)
Oproeptracering:
[b04230a4] cpm_idle_wait+0x14/0x24(onbetrouwbaar)
[b0469d4c] cpu_startup_entry+0x124/0x1e8
[b0410d78] start_secondary+0x1fc/0x200
[b0402234] start_secondary_47x+0x24/0x48
Cause
Een van de CPU's was offline, waardoor de Switch werd uitgeschakeld.
Resolution
Permanente oplossing:
- Als alle 6 CPU's niet online zijn, vervangt u de switch en zorgt u ervoor dat de nieuwe switch wordt uitgevoerd op NX-OS v8.4(1a) of hoger.
- Als alle zes CPU's online zijn, moet u de firmware upgraden naar NX-OS v8.4(1a) of hoger om herhaling te voorkomen.
Additional Information
Dit is alleen van toepassing op Cisco MDS-9396s-switches
Affected Products
Connectrix MDS 9396SArticle Properties
Article Number: 000181486
Article Type: Solution
Last Modified: 07 Jan 2021
Version: 1
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