IOSXE-3-PLATFORM: STANDBY:2 process kernel: ERROR CVMX_L2C_ERR_TDT

[Consuelo Annon]

I have this log message on a WS-C3850-48P running 03.03.04SE

%IOSXE-3-PLATFORM: STANDBY:2 process kernel: ERROR L2C_TADX_INT(0)[L2DSBE]: Data Single-Bit Error
 %IOSXE-3-PLATFORM: STANDBY:2 process kernel: ERROR CVMX_L2C_ERR_TDT: 0x4230000000185002

Any ideas ?

Thanks

[InayathUlla Sharieff]

Consulelo,

The logs are informative. They says that the kernel has experienced a problem and the logs
are about where in the memory has this error occurred. Since it has happened only once, it
seems minor. If you see these errors popping constantly, that would be considered as a
hardware failure and in that case proceed with hardware replacement.

HTH

Regards

Inayath

*****please do not forget to rate the post if helpfull*****

[vaddremlyuk]

Two 3850 in stack = problems !

Cisco Catalyst 3850-24P   03.06.03SE

Cisco Catalyst 3850-12S    03.06.03SE

We have approx. the same errors in log with 2 switches in stack = 3850-24T + 3850-12S

flashfs[7]: 0 files, 1 directories
flashfs[7]: 0 orphaned files, 0 orphaned directories
flashfs[7]: Total bytes: 6784000
flashfs[7]: Bytes used: 1024
flashfs[7]: Bytes available: 6782976
flashfs[7]: flashfs fsck took 1 seconds....done Initializing Flash.
flash:: bad/non-bootable Nova bundle file

Error loading "flash:"

Interrupt within 5 seconds to abort boot process.
Getting rest of image
Reading full image into memory....done
Reading full base package into memory...: done = 82657092
Nova Bundle Image
--------------------------------------
Kernel Address    : 0x6042f34c
Kernel Size       : 0x418331/4293425
Initramfs Address : 0x60847680
Initramfs Size    : 0xe780c1/15171777
Compression Format: .mzip

Bootable image at @ ram:0x6042f34c
Bootable image segment 0 address range [0x81100000, 0x82140000] is in range [0x80180000, 0x90000000].
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@boot_system: 380
Loading Linux kernel with entry point 0x8166a500 ...
Bootloader: Done loading app on core_mask: 0xf

### Launching Linux Kernel (flags = 0x5)

ERROR L2C_TADX_INT(0)[L2DSBE]: Data Single-Bit Error
ERROR CVMX_L2C_ERR_TDT: 0x4a8000000006fdb2
All packages are Digitally Signed
Starting System Services
Sep 22 00:58:27 %IOSXE-3-PLATFORM: process kernel: ERROR L2C_TADX_INT(0)[L2DSBE]: Data Single-Bit Error
Sep 22 00:58:27 %IOSXE-3-PLATFORM: process kernel: ERROR CVMX_L2C_ERR_TDT: 0x4a8000000006fdb2

FIPS(NGWC): Flash Key Check : Begin
FIPS(NGWC): Flash Key Check : End, Not Found, FIPS Mode Not Enabled

...

... at the end of log:

...

*Sep 22 01:05:20.352: %IOSXE-3-PLATFORM: 1 process kernel: ERROR L2C_TADX_INT(0)[L2DSBE]: Data Single-Bit Error
*Sep 22 01:05:20.352: %IOSXE-3-PLATFORM: 1 process kernel: ERROR CVMX_L2C_ERR_TDT: 0x4a8000000006fdb2
*Sep 22 01:05:20.352: %IOSXE-3-PLATFORM: 1 process kernel: ERROR L2C_TADX_INT(0)[VBFSBE]: VBF Single-Bit Error
*Sep 22 01:05:20.352: %IOSXE-3-PLATFORM: 1 process kernel: ERROR CVMX_L2C_ERR_VBF: 0x1a80000000000000

If we reload this switches as standalone (not in stack) - we don't see errors in logs.

Can you advise solution ?

Thanks

[afsharki2]

I got the same log on my stack of 2 3850s.

[John LaFrance]

Seeing the same logs repeatedly every few seconds on a stack of two 3850-48's running IOS 3.7.3, uptime 6+ weeks.

Mar 14 11:56:47: %IOSXE-3-PLATFORM: STANDBY:2 process kernel: ERROR L2C_TADX_INT(0)[VBFSBE]: VBF Single-Bit Error

Mar 14 11:56:47: %IOSXE-3-PLATFORM: STANDBY:2 process kernel: ERROR CVMX_L2C_ERR_VBF: 0x1004000000000000

[MEHRDAD AHMADI TALGHI]

Hi dear 

you need some structure in stack , before any solution becarfule about switches, shutdown all switches from power.

step 1 : first 2 switch make stack together. ( with same IOS , ...)

step 2 : if any thinks is normal added next switch , until the big problem happen again .

step 3: remove last switch and try for reboot all switch , if condition is normal , plz make text from last switches have a problem by ( show run ) and upload here

[CSCO12099251]

Hi All,

Is there any Cisco bug filed / any Cisco documentation on these messages?

Thanks.

Godwin. S

[vaddremlyuk]

putting message (2x3850 switch in stack = errors) after Cisco representative answer

[jasonhawaii1]

I have this problem with a stack of 5. Member #2 is having this error. Running version 7.3.5E. Switch seems to operating normal. What can be not normal about this error?

[DEENA SLOAN]

I also have received this error but we are running IOS Version 03.06.04.E on a WS-C3850-48P (Not stacked). I have only seen the error 1 time. I will be monitoring it also. Are there any bugs logged on this error yet?