Cisco Nexus 4001I reloaded its own

[sirius-ms]

Hi All,

Our Cisco Nexus 4001I Switch Module for IBM BladeCenter has reloaded its own, when i checked the logg what i found is below. Can you suggest which version has a fix?

CCC-DRBC-4k-B# sho logging nvram
2017 Sep 14 10:48:57 CCC-DRBC-4k-B %SYSMGR-2-SERVICE_CRASHED: Service "snmpd" (PID 2568) hasn't caught signal 6 (core will be saved).
2017 Sep 14 10:51:09 CCC-DRBC-4k-B %KERN-2-SYSTEM_MSG: Starting kernel... - kernel
2017 Sep 14 10:51:09 CCC-DRBC-4k-B %KERN-1-SYSTEM_MSG:  Entered kgdb_console_init:1960 - kernel
2017 Sep 14 10:52:02 CCC-DRBC-4k-B %VDC_MGR-2-VDC_ONLINE: vdc 1 has come online
---------
CCC-DRBC-4k-B# sho pro log pid 2568
======================================================
Service: snmpd
Description: SNMP Agent

Started at Sat Jun 17 21:38:15 2017 (364501 us)
Stopped at Thu Sep 14 10:48:57 2017 (520724 us)
Uptime: 88 days 13 hours 10 minutes 42 seconds

Start type: SRV_OPTION_RESTART_STATELESS (23)
Death reason: SYSMGR_DEATH_REASON_FAILURE_SIGNAL (2)
Last heartbeat 7.95 secs ago
System image name: n4000-bk9.4.1.2.E1.1b.bin
System image version: 4.1(2)E1(1b) S0

PID: 2568
Exit code: signal 6 (core dumped)

Threads: 2832

CWD: /var/sysmgr/work

Virtual Memory:

    CODE      10000000 - 100D1138
    DATA      10075000 - 100D1138
    BRK       100DD000 - 17E10000
    STACK     7FFFFA10
    TOTAL     195416 KB

Register Set:

    GPR0  000000FA    GPR1  7FFFD820    GPR2  3003D720    GPR3  00000000
    GPR4  00000A08    GPR5  00000006    GPR6  00000000    GPR7  0E3DE588
    GPR8  300362C0    GPR9  FFFFF5F8    GPR10 00000000    GPR11 7FFFD7F0
    GPR12 0E3DFCE0    GPR13 100D90E8    GPR14 000002A0    GPR15 10060000
    GPR16 10060000    GPR17 10060000    GPR18 10060000    GPR19 7FFFF740
    GPR20 00000001    GPR21 102C78E4    GPR22 00000000    GPR23 102CA5BC
    GPR24 00000000    GPR25 00000047    GPR26 00000000    GPR27 0000024C
    GPR28 0E4F0274    GPR29 300362C0    GPR30 0E4EDFB4    GPR31 00000006
**bleep**   0E3DE2F4    MSR   0002D000    GPR3O 00000A08    CTR   0EE7A260
LINK  0E3DFCE0    XER   00000000    CCR   44042424    MQ    00000000
TRAP  00000C00    DAR   0E3DFAAC    DSISR 00000000    RES   00000000
Stack: 8192 bytes. ESP 7FFFD820, TOP 7FFFFA10

Regards,

Mohan

[Georg Pauwen]

Hello, 

can you post the output of:

show proc log pid 2568

[sirius-ms]

Please find the output attached.

Thank you Georg for looking into this issue.

Please let me know if you are not abel to open the attachment.

Regards,

Mohan

[Georg Pauwen]

Hello,

thanks for the output. The reload is caused by the SNMP daemon. Usually, there is an indication in one of the lines of your output of what causes this:

0x7FFFE080: 43723374 3361646D 316E0000 103159D4 Cr3t3adm1n...1Y.

That looks like some sort of user ID, do you have an SNMP server installed somewhere ? What is the (SNMP part of) the configuration of your switch, can you post that ?

[sirius-ms]

Yes, That is our snmp community string.

CCC-DRBC-4k-B# sho run | in snmp
snmp-server user admin network-admin auth md5 xxxx priv xxx localizedkey
snmp-server user cresupport network-admin auth md5 xxx priv xxxx localizedkey
snmp-server community Cr3t3adm1n group network-operator
CCC-DRBC-4k-B#

[Georg Pauwen]

Hello,

can you find out which port the SNMP server is connected to ? Maybe something simple like rebooting that server could resolve this.

[sirius-ms]

Port 161/162 TCP/UDP are used for SNMP service here. we used the same config for our all 4k switches, I never had this problem over there. When I searched more about this issue, I found CSCtf91116 bug is it related to the same issue? We are currently ruining with 4.1(2)E1(1b). Do we have any stable version which I can upgrade to ?

[Georg Pauwen · Accepted solution]

Hello,

4.1(2)E1(1c) is listed as a version containing a fix...