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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/s390/purgatory/head.S
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@@ -11,6 +11,7 @@
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 #include <asm/asm-offsets.h>
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 #include <asm/page.h>
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 #include <asm/sigp.h>
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+#include <asm/ptrace.h>
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 /* The purgatory is the code running between two kernels. It's main purpose
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  * is to verify that the next kernel was not corrupted after load and to
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@@ -89,8 +90,7 @@
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 .base_crash:
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 	/* Setup stack */
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-	larl	%r15,purgatory_end
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-	aghi	%r15,-160
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+	larl	%r15,purgatory_end-STACK_FRAME_OVERHEAD
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 	/* If the next kernel is KEXEC_TYPE_CRASH the purgatory is called
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 	 * directly with a flag passed in %r2 whether the purgatory shall do