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Message-ID: <20090729085837.GB4998@jolsa.lab.eng.brq.redhat.com> Date: Wed, 29 Jul 2009 10:58:37 +0200 From: Jiri Olsa <jolsa@...hat.com> To: Ingo Molnar <mingo@...e.hu>, Steven Rostedt <rostedt@...dmis.org> Cc: lkml <linux-kernel@...r.kernel.org> Subject: [PATCH] tracing: stack allocation fix Only 24 bytes need to be allocated. I believe this was missed in following commit: x86, function-graph: only save return values on x86_64 commit e71e99c294058a61b7a8b9bb6da2f745ac51aa4f wbr, jirka Signed-off-by: Jiri Olsa <jolsa@...hat.com> --- diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index c251be7..d59fe32 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -146,7 +146,7 @@ ENTRY(ftrace_graph_caller) END(ftrace_graph_caller) GLOBAL(return_to_handler) - subq $80, %rsp + subq $24, %rsp /* Save the return values */ movq %rax, (%rsp) @@ -155,10 +155,10 @@ GLOBAL(return_to_handler) call ftrace_return_to_handler - movq %rax, 72(%rsp) + movq %rax, 16(%rsp) movq 8(%rsp), %rdx movq (%rsp), %rax - addq $72, %rsp + addq $16, %rsp retq #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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