[Xen-devel] [PATCH] [VT]long event-channel pending and mask arrays

["Kamble, Nitin A" <nitin.a.kamble@xxxxxxxxx>]

Keir,

  I am trying to debug the SMP dom0 boot issue on x86_64. I find the changeset 7402 is breaking SMP.

   Your patch 7402: ba9706473941520247153e7e31d89899285d09ce is extending the event-channel pending and mask arrays to longs.

I think the synch_const_test_bit should also change accordingly. This does not fix the SMP issue yet, but is this the right way to fix it?

 

Signed-Off-By: Nitin A Kamble <nitin.a.kamble@xxxxxxxxx>

 

diff -r e47f04c55eb1612bca605c972943ae166aae22d0 linux-2.6-xen-sparse/include/asm-xen/asm-i386/synch_bitops.h

--- a/linux-2.6-xen-sparse/include/asm-xen/asm-i386/synch_bitops.h      Mon Oct 24 11:57:37 2005

+++ b/linux-2.6-xen-sparse/include/asm-xen/asm-i386/synch_bitops.h      Tue Oct 25 19:14:48 2005

@@ -120,7 +120,7 @@

 static __inline__ int synch_const_test_bit(int nr, const volatile void * addr)

 {

     return ((1UL << (nr & 31)) &

-            (((const volatile unsigned int *) addr)[nr >> 5])) != 0;

+            (((const volatile unsigned int *) addr)[nr / BITS_PER_LONG])) != 0;

 }

 

 static __inline__ int synch_var_test_bit(int nr, volatile void * addr)

 

Thanks & Regards,

Nitin

-----------------------------------------------------------------------------------

Open Source Technology Center, Intel Corp

 

evtchn_fix.patch
Description: evtchn_fix.patch

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