diff -Nur linux-2.6.8-rc3/arch/ia64/kernel/mca.c linux-2.6.8-rc3-mcadrv-v2/arch/ia64/kernel/mca.c
--- linux-2.6.8-rc3/arch/ia64/kernel/mca.c	2004-08-04 06:27:37.000000000 +0900
+++ linux-2.6.8-rc3-mcadrv-v2/arch/ia64/kernel/mca.c	2004-08-04 18:08:39.000000000 +0900
@@ -828,6 +828,12 @@
 
 }
 
+/* This is a function pointer to other error recovery from MCA */
+int (*ia64_mca_ucmc_other_recover_fp)
+	(void*,ia64_mca_sal_to_os_state_t*,ia64_mca_os_to_sal_state_t*)
+	= NULL;
+EXPORT_SYMBOL(ia64_mca_ucmc_other_recover_fp);
+
 /*
  * ia64_mca_ucmc_handler
  *
@@ -849,11 +855,20 @@
 {
 	pal_processor_state_info_t *psp = (pal_processor_state_info_t *)
 		&ia64_sal_to_os_handoff_state.proc_state_param;
-	int recover = psp->tc && !(psp->cc || psp->bc || psp->rc || psp->uc);
+	int recover; 
 
 	/* Get the MCA error record and log it */
 	ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
 
+	/* No error other than TLB error exist in this SAL error record */
+	recover = (psp->tc && !(psp->cc || psp->bc || psp->rc || psp->uc))
+	/* Extra error recovery */
+	   || (ia64_mca_ucmc_other_recover_fp 
+		&& ia64_mca_ucmc_other_recover_fp(
+			IA64_LOG_CURR_BUFFER(SAL_INFO_TYPE_MCA),
+			&ia64_sal_to_os_handoff_state,
+			&ia64_os_to_sal_handoff_state)); 
+
 	/*
 	 *  Wakeup all the processors which are spinning in the rendezvous
 	 *  loop.
diff -Nur linux-2.6.8-rc3/include/asm-ia64/mca.h linux-2.6.8-rc3-mcadrv-v2/include/asm-ia64/mca.h
--- linux-2.6.8-rc3/include/asm-ia64/mca.h	2004-08-04 06:27:13.000000000 +0900
+++ linux-2.6.8-rc3-mcadrv-v2/include/asm-ia64/mca.h	2004-08-04 18:08:39.000000000 +0900
@@ -114,6 +114,7 @@
 extern void ia64_monarch_init_handler(void);
 extern void ia64_slave_init_handler(void);
 extern void ia64_mca_cmc_vector_setup(void);
+extern int  (*ia64_mca_ucmc_other_recover_fp)(void *,ia64_mca_sal_to_os_state_t *,ia64_mca_os_to_sal_state_t *);
 
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_IA64_MCA_H */