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-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst29
1 files changed, 28 insertions, 1 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index 7fd43947832f..dd49a89a62d3 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -212,6 +212,17 @@ pid>/``).
This value defaults to 0.
+core_sort_vma
+=============
+
+The default coredump writes VMAs in address order. By setting
+``core_sort_vma`` to 1, VMAs will be written from smallest size
+to largest size. This is known to break at least elfutils, but
+can be handy when dealing with very large (and truncated)
+coredumps where the more useful debugging details are included
+in the smaller VMAs.
+
+
core_uses_pid
=============
@@ -401,6 +412,15 @@ The upper bound on the number of tasks that are checked.
This file shows up if ``CONFIG_DETECT_HUNG_TASK`` is enabled.
+hung_task_detect_count
+======================
+
+Indicates the total number of tasks that have been detected as hung since
+the system boot.
+
+This file shows up if ``CONFIG_DETECT_HUNG_TASK`` is enabled.
+
+
hung_task_timeout_secs
======================
@@ -454,7 +474,7 @@ ignore-unaligned-usertrap
On architectures where unaligned accesses cause traps, and where this
feature is supported (``CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN``;
-currently, ``arc`` and ``loongarch``), controls whether all
+currently, ``arc``, ``parisc`` and ``loongarch``), controls whether all
unaligned traps are logged.
= =============================================================
@@ -1535,6 +1555,13 @@ constant ``FUTEX_TID_MASK`` (0x3fffffff).
If a value outside of this range is written to ``threads-max`` an
``EINVAL`` error occurs.
+timer_migration
+===============
+
+When set to a non-zero value, attempt to migrate timers away from idle cpus to
+allow them to remain in low power states longer.
+
+Default is set (1).
traceoff_on_warning
===================