KGDB_ROUNDUP_CPUS(9)                Kernel Debugger Internals                KGDB_ROUNDUP_CPUS(9)



NAME
       kgdb_roundup_cpus - Get other CPUs into a holding pattern

SYNOPSIS
       void kgdb_roundup_cpus(unsigned long flags);

ARGUMENTS
       flags
           Current IRQ state

DESCRIPTION
       On SMP systems, we need to get the attention of the other CPUs and get them into a known
       state. This should do what is needed to get the other CPUs to call kgdb_wait. Note that on
       some arches, the NMI approach is not used for rounding up all the CPUs. For example, in
       case of MIPS, smp_call_function is used to roundup CPUs. In this case, we have to make
       sure that interrupts are enabled before calling smp_call_function. The argument to this
       function is the flags that will be used when restoring the interrupts. There is
       local_irq_save call before kgdb_roundup_cpus.

       On non-SMP systems, this is not called.

AUTHOR
       Jason Wessel <jason.wessel AT windriver.com>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                      KGDB_ROUNDUP_CPUS(9)