%SYS-3-SEM_HOLDMANY:Task [Chars] holds too many semaphores
This message indicates that a task is holding too many semaphores. [chars] is the name of the task.
The message is an indication that the EtherChannel process has locked a couple of memory blocks for its use. The error message is generated when this occurs since there is a chance that other processes may run out of memory blocks to use. If the message is continuously scrolling through, then it can be a problem with the EtherChannel using too much memory.
This message is mostly cosmetic and does not affect the switch's functionality.
If this message comes up continuously, then a possible solution is to clear the EtherChannel configuration and re-configure it during a maintenance window.