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authorPaul E. McKenney <paulmck@kernel.org>2020-11-12 03:08:01 +0300
committerPaul E. McKenney <paulmck@kernel.org>2021-01-05 00:59:41 +0300
commit243027a3c80564bf96e40437ffac46efb9f5f2b5 (patch)
treeccc7f59cf857089053c449690e4cf53294595a5a /lib/mpi/mpi-cmp.c
parentb08ea1de6a8f8929c7dafd6f708799365fa90c11 (diff)
downloadlinux-243027a3c80564bf96e40437ffac46efb9f5f2b5.tar.xz
rcu: For RCU grace-period kthread starvation, dump last CPU it ran on
When the RCU CPU stall-warning code detects that the RCU grace-period kthread is being starved, it dumps that kthread's stack. This can sometimes be useful, but it is also useful to know what is running on the CPU that this kthread is attempting to run on. This commit therefore adds a stack trace of this CPU in order to help track down whatever it is that might be preventing RCU's grace-period kthread from running. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
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