dcmds

[ cpuid | address ] ::ttrace [-x]: Display trap trace records in reverse chronological order. The trap trace facility is available only in DEBUG kernels. If an explicit dot value is specified, this is interpreted as either a CPU ID number or a trap trace record address, depending on the precise value. If a CPU ID is specified, the output is restricted to the buffer from that CPU. If a record address is specified, only that record is formatted. If the -x option is specified, the complete raw record is displayed.

Walkers

ttrace

Walk the list of trap trace record addresses in reverse chronological order. The trap trace facility is available only in DEBUG kernels.

These dcmds and walkers are specific to the SPARC sun4m platform.

[ cpuid | address ] ::ttrace [-x]: Display trap trace records in reverse chronological order. The trap trace facility is available only in DEBUG kernels. If an explicit dot value is specified, this is interpreted as either a CPU ID number or a trap trace record address, depending on the precise value. If a CPU ID is specified, the output is restricted to the buffer from that CPU. If a record address is specified, only that record is formatted. If the -x option is specified, the complete raw record is displayed.

ttrace

Walk the list of trap trace record addresses in reverse chronological order. The trap trace facility is only available in DEBUG kernels.

These dcmds and walkers are specific to the SPARC sun4u platform.

[ address ] `::softint`	Display the soft interrupt vector structure at the specified address, or display all the active soft interrupt vectors. The pending count, PIL, argument, and handler function for each structure is displayed.
`::ttctl`	Display trap trace control records. The trap trace facility is available only in DEBUG kernels.
[ cpuid ] `::ttrace` [`-x`]	Display trap trace records in reverse chronological order. The trap trace facility is available only in DEBUG kernels. If an explicit dot value is specified, this is interpreted as a CPU ID number, and the output is restricted to the buffer from that CPU. If the `-x` option is specified, the complete raw record is displayed.
[ address ] `::xc_mbox`	Display the cross-call mailbox at the specified address, or format all the cross-call mailboxes that have pending requests.
`::xctrace`	Format and display cross-call trace records in reverse chronological order that are related to CPU cross-call activity. The cross-call trace facility is available only in DEBUG kernels.

softint	Iterate over the soft interrupt vector table entries.
ttrace	Iterate over the trap trace record addresses in reverse chronological order. The trap trace facility is only available in DEBUG kernels.
xc_mbox	Iterate over the mailboxes used for CPU handshake and cross-call (x-call) requests.


7. Kernel Debugging Modules IA: Platform Debugging Support (`unix`)