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29dc539d74
Register handlers for signals for all selftests that are likely happen due to test (or kernel) bugs, and explicitly fail tests on unexpected signals so that users get a stack trace, i.e. don't have to go spelunking to do basic triage. Register the handlers as early as possible, to catch as many unexpected signals as possible, and also so that the common code doesn't clobber a handler that's installed by test (or arch) code. Tested-by: Ackerley Tng <ackerleytng@google.com> Reviewed-by: Ackerley Tng <ackerleytng@google.com> Reviewed-by: Shivank Garg <shivankg@amd.com> Tested-by: Shivank Garg <shivankg@amd.com> Link: https://lore.kernel.org/r/20251016172853.52451-8-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>