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Diffstat (limited to 'Documentation/dev-tools/kasan.rst')
| -rw-r--r-- | Documentation/dev-tools/kasan.rst | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst index e66916a483cd..f4acf9c2e90f 100644 --- a/Documentation/dev-tools/kasan.rst +++ b/Documentation/dev-tools/kasan.rst @@ -107,9 +107,12 @@ effectively disables ``panic_on_warn`` for KASAN reports. Alternatively, independent of ``panic_on_warn``, the ``kasan.fault=`` boot parameter can be used to control panic and reporting behaviour: -- ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN - report or also panic the kernel (default: ``report``). The panic happens even - if ``kasan_multi_shot`` is enabled. +- ``kasan.fault=report``, ``=panic``, or ``=panic_on_write`` controls whether + to only print a KASAN report, panic the kernel, or panic the kernel on + invalid writes only (default: ``report``). The panic happens even if + ``kasan_multi_shot`` is enabled. Note that when using asynchronous mode of + Hardware Tag-Based KASAN, ``kasan.fault=panic_on_write`` always panics on + asynchronously checked accesses (including reads). Software and Hardware Tag-Based KASAN modes (see the section about various modes below) support altering stack trace collection behavior: |