git: kernel - Fix early boot interrupt race

[Matthew Dillon]

commit 94fd1ee9015cf6f3ded2524896171e4fe96f2b85
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Sep 19 16:51:50 2018 -0700

    kernel - Fix early boot interrupt race
    
    * Fix a null pointer dereference panic due to an interrupt
      race during early boot.  Interrupts are enabled before
      intr_block is allocated, so intr_block can be NULL.
    
    * Refactor the kmalloc() for intr_block to only allocate the
      space needed for ncpus.

Summary of changes:
 sys/kern/kern_intr.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/94fd1ee9015cf6f3ded2524896171e4fe96f2b85


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