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Using Tracepoints to Debug iSCSI

Thursday Nov 21st 2019 by Fred Herard

The scsi_transport_iscsi, libiscsi, libiscsi_tcp, and iscsi_tcp modules have been modified to leverage Linux Kernel Tracepoints to capture debug messages.

The scsi_transport_iscsi, libiscsi, libiscsi_tcp, and iscsi_tcp modules have been modified to leverage Linux Kernel Tracepoints to capture debug messages. Before this modification, debug messages for these modules were simply directed to syslog when enabled. This enhancement gives users the option to use Tracepoint facility to dump enabled events (debug messages) into ftrace ring buffer.

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