linux-kernel - [PATCH 14/33] KVM: VMX: Add printk_ratelimit in vmx_intr

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Date:	Sun,  6 Jan 2008 16:39:20 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	linux-kernel@...r.kernel.org, kvm-devel@...ts.sourceforge.net
Cc:	Ryan Harper <ryanh@...ibm.com>
Subject: [PATCH 14/33] KVM: VMX: Add printk_ratelimit in vmx_intr_assist

From: Ryan Harper <ryanh@...ibm.com>

Add printk_ratelimit check in front of printk.  This prevents spamming
of the message during 32-bit ubuntu 6.06server install.  Previously, it
would hang during the partition formatting stage.

Signed-off-by: Ryan Harper <ryanh@...ibm.com>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 drivers/kvm/vmx.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 13c6a51..4407998 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -2262,7 +2262,8 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
 	if (intr_info_field & INTR_INFO_VALID_MASK) {
 		if (idtv_info_field & INTR_INFO_VALID_MASK) {
 			/* TODO: fault when IDT_Vectoring */
-			printk(KERN_ERR "Fault when IDT_Vectoring\n");
+			if (printk_ratelimit())
+				printk(KERN_ERR "Fault when IDT_Vectoring\n");
 		}
 		if (has_ext_irq)
 			enable_irq_window(vcpu);
-- 
1.5.3.7

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