ICS: bug fixes and debugging support

- don't disable preemption
- don't spin inside the kernel on behalf of user space
- give some debug info (can be turned off)

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index e4ab40862b..74155183bd 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -657,8 +657,12 @@ void do_notify_resume(struct pt_regs *regs, void *_unused,
         
         if (thread_info_flags & _TIF_ROLLBACK_RCS) {
                 long addr = (long) get_rollback_addr();
-                if (addr)
+                if (addr) {
+                        ICS_DBG(KERN_DEBUG "do_notify_resume(): eip 0x%lx -> "
+                                "0x%lx\n", regs->eip, addr);
                         regs->eip = addr;
+                        
+                }
                 clear_thread_flag(TIF_ROLLBACK_RCS);            
         }