Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f5efb41e793ce587836b89b7191083b9a6185ed5
Commit:     f5efb41e793ce587836b89b7191083b9a6185ed5
Parent:     9062d888aa448318e38792b6879a795dd10adda4
Author:     Fernando Luis [** ISO-8859-1 charset **] V�zquezCao <[EMAIL 
PROTECTED]>
AuthorDate: Wed May 2 19:27:18 2007 +0200
Committer:  Andi Kleen <[EMAIL PROTECTED]>
CommitDate: Wed May 2 19:27:18 2007 +0200

    [PATCH] i386: Use safe_apic_wait_icr_idle in safe_apic_wait_icr_idle - i386
    
    Use safe_apic_wait_icr_idle to check ICR idle bit if the vector is
    NMI_VECTOR to avoid potential hangups in the event of crash when kdump
    tries to stop the other CPUs.
    
    Signed-off-by: Fernando Luis Vazquez Cao <[EMAIL PROTECTED]>
    Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
---
 arch/i386/kernel/smp.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index d14ffe2..f866710 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -175,7 +175,10 @@ static inline void __send_IPI_dest_field(unsigned long 
mask, int vector)
        /*
         * Wait for idle.
         */
-       apic_wait_icr_idle();
+       if (unlikely(vector == NMI_VECTOR))
+               safe_apic_wait_icr_idle();
+       else
+               apic_wait_icr_idle();
                
        /*
         * prepare target chip field
-
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