This article describes about the meaning of the following log message.

(FPC Slot x, PIC Slot x) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

The device often displays the following logs.

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Oct 23 22:01:49 2024  SRX5600 (FPC Slot 1, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 1, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 1, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 1, PIC Slot 0) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 0, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 0, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:49 2024  SRX5600 (FPC Slot 0, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 1, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 1, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 1, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 1, PIC Slot 0) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 0, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 0, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 
Oct 23 22:01:50 2024  SRX5600 (FPC Slot 0, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

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It appears that the following command triggered the message log.

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interactive-commands:

Oct 23 22:01:49 2024 SRX5600 mgd[34170]: UI_CMDLINE_READ_LINE: User 'root', command 'show security idp attack table no-forwarding '

messages:

Oct 23 22:01:49 2024 SRX5600 (FPC Slot 1, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 23 22:01:49 2024 SRX5600 (FPC Slot 1, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 23 22:01:49 2024 SRX5600 (FPC Slot 1, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 23 22:01:49 2024 SRX5600 (FPC Slot 1, PIC Slot 0) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

<snip>

------------

interactive-commands:

Oct 24 06:01:54 2024 SRX5600 mgd[52584]: UI_CMDLINE_READ_LINE: User 'root', command 'show security idp attack table no-forwarding '

messages:

Oct 24 06:01:54 2024 SRX5600 (FPC Slot 1, PIC Slot 3) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 24 06:01:54 2024 SRX5600 (FPC Slot 1, PIC Slot 2) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 24 06:01:54 2024 SRX5600 (FPC Slot 1, PIC Slot 1) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

Oct 24 06:01:54 2024 SRX5600 (FPC Slot 1, PIC Slot 0) usp_ipc_idp_ioctl_handler:459: sc_process_ioctl failed 

<snip>

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This log message seen is due to IDPD daemon triggered to query for the IDP attack table. 

But, as no IDP policy has been enabled on the device, the request from IDPD for the idp-attack-table fails and hence generates this error messages.

It's a harmless message that can be ignored.