1KGDB_ROUNDUP_CPUS(9)            KGDB Internals            KGDB_ROUNDUP_CPUS(9)
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NAME

6       kgdb_roundup_cpus - Get other CPUs into a holding pattern
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SYNOPSIS

9       void kgdb_roundup_cpus(unsigned long flags);
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ARGUMENTS

12       flags
13           Current IRQ state
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DESCRIPTION

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

29       Jason Wessel <jason.wessel@windriver.com>
30           Author.
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32       Tom Rini <trini@kernel.crashing.org>
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35       Amit S. Kale <amitkale@linsyssoft.com>
36           Author.
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39Kernel Hackers Manual 2.6.         June 2019              KGDB_ROUNDUP_CPUS(9)
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