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11 The _stack_trace_begin line begins a trace of the current thread
block’s stack at the time of the crash. In this case the _XentMM function
called the trap function. The trap function called the panic function,
which called the boot function and the system crashed.
12 The exception frame is a stack frame created to store the state of the
process running at the time of the exception. It stores the registers and
pc associated with the process. To determine where registers are stored
in the exception frame, refer to the /usr/include/machine/reg.h
header file.
13 Swap information is shown to help you determine whether swap space
is sufficient.
14 The process table gives information about the processes active at the
time of the crash. The information includes:
• The process ID of each process.
• The process ID of the parent process for each process.
• The process group ID for each process.
• The UID of the of the user that started each process. In this case
all process are started by root.
• The priority at which the process was running at the time of the
memory fault.
• The event the process was waiting for, if any. An event might be the
completion of an input or output request, for example.
• Any flags assigned to the process. For example, the ctty flag
indicates that the process has a controlling terminal and, the sys
flag indicates that the process is a swapper or pager process.
Output from the crashdc Command A–7