Karna_driver restarts in NCS 560

[dundient]

hello everyone,

i have an issue about NCS560 router. 

Recently I'm starting to get this log on my router:

P/0/RP1/CPU0:Feb 15 06:52:44.472 UTC: processmgr[51]: %OS-SYSMGR-3-ERROR : Respawn karna_driver(420) with an env set not to use chkpt data
RP/0/RP1/CPU0:Feb 15 06:52:44.472 UTC: processmgr[51]: %OS-SYSMGR-3-ERROR : karna_driver(1) (jid 420) exited, will be respawned with a delay (slow-restart)
RP/0/RP1/CPU0:Feb 15 06:52:44.472 UTC: processmgr[51]: %OS-SYSMGR-3-ERROR : karna_driver(420) (fail count 10) will be respawned in 120 seconds
RP/0/RP1/CPU0:Feb 15 06:54:06.681 UTC: rmf_svr[250]: %HA-REDCON-1-STANDBY_READY : standby card is ready

Does anyone knows what it the problem?

[Torbjørn]

Have you recently upgraded the device, or made any other changes that could be related?
I couldn't find any matching bug, but it's not impossible that it is one if you're running a new release.

[dundient]

recently I'm using 7.5.2 version, and downgraded from the 7.11.2 version