From 34ff636f322c6d5e4f0a52338fa63a7dff09a495 Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sat, 18 Jul 2026 13:15:36 -0400 Subject: scftorture: Count single_rpc offline failures in statistics output scf_torture_stats_print() aggregates each invoker thread's counters into a local scf_statistics structure before printing, but the n_single_rpc_ofl field is missing from the aggregation loop. As a result, the "single_rpc_ofl" value printed in the statistics line is always zero, even when smp_call_function_single() invocations for the RPC test have failed due to offline CPUs and been counted by the invoker threads. Add the missing accumulation so that the printed value reflects the actual counts. Signed-off-by: Joel Fernandes Signed-off-by: Paul E. McKenney --- Documentation/ABI/testing/ppc-memtrace | 46 ++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/ABI/testing/ppc-memtrace (limited to 'Documentation/ABI/testing/ppc-memtrace') diff --git a/Documentation/ABI/testing/ppc-memtrace b/Documentation/ABI/testing/ppc-memtrace new file mode 100644 index 000000000..9606aed33 --- /dev/null +++ b/Documentation/ABI/testing/ppc-memtrace @@ -0,0 +1,46 @@ +What: /sys/kernel/debug/powerpc/memtrace +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: This folder contains the relevant debugfs files for the + hardware trace macro to use. CONFIG_PPC64_HARDWARE_TRACING + must be set. + +What: /sys/kernel/debug/powerpc/memtrace/enable +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: Write an integer containing the size in bytes of the memory + you want removed from each NUMA node to this file - it must be + aligned to the memblock size. This amount of RAM will be removed + from each NUMA node in the kernel mappings and the following + debugfs files will be created. Once memory is successfully + removed from each node, the following files are created. To + re-add memory to the kernel, echo 0 into this file (it will be + automatically onlined). + +What: /sys/kernel/debug/powerpc/memtrace/ +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: This directory contains information about the removed memory + from the specific NUMA node. + +What: /sys/kernel/debug/powerpc/memtrace//size +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: This contains the size of the memory removed from the node. + +What: /sys/kernel/debug/powerpc/memtrace//start +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: This contains the start address of the removed memory. + +What: /sys/kernel/debug/powerpc/memtrace//trace +Date: Aug 2017 +KernelVersion: 4.14 +Contact: linuxppc-dev@lists.ozlabs.org +Description: This is where the hardware trace macro will output the trace + it generates. -- cgit v1.3.1