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Message-Id: <1222430588-29072-2-git-send-email-heukelum@fastmail.fm> Date: Fri, 26 Sep 2008 14:03:02 +0200 From: Alexander van Heukelum <heukelum@...tmail.fm> To: Ingo Molnar <mingo@...e.hu>, lkml <linux-kernel@...r.kernel.org> Cc: Alexander van Heukelum <heukelum@...tmail.fm> Subject: [PATCH 1/7] traps: x86_64: add TRACE_IRQS_OFF in error_entry Add TRACE_IRQS_OFF just before entering the C code. All exceptions are taken via interrupt gates. If irq tracing is enabled, it should be notified as soon as possible. Interrupts are only (conditionally) re-enabled in C code. Signed-off-by: Alexander van Heukelum <fastmail.fm> --- arch/x86/kernel/entry_64.S | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 89434d4..78fa552 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1058,7 +1058,8 @@ KPROBE_ENTRY(error_entry) je error_kernelspace error_swapgs: SWAPGS -error_sti: +error_sti: + TRACE_IRQS_OFF movq %rdi,RDI(%rsp) CFI_REL_OFFSET rdi,RDI movq %rsp,%rdi -- 1.5.4.3 -- 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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