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authorNick Bofferding <bofferdn@us.ibm.com>2015-01-14 10:13:44 -0600
committerA. Patrick Williams III <iawillia@us.ibm.com>2015-01-16 13:52:21 -0600
commitc823e22a4b61d7db26ce7f3a744c5029b1ccf18e (patch)
treec01fb27d5252cb1793a8355d4892159bb0756a90 /src/usr/console
parent8aac8685ccdff8d11bf648f3bce65704b461cbf2 (diff)
downloadtalos-hostboot-c823e22a4b61d7db26ce7f3a744c5029b1ccf18e.tar.gz
talos-hostboot-c823e22a4b61d7db26ce7f3a744c5029b1ccf18e.zip
Fix intermittent deadman timer timeout in host_activate_master
- Flush console traces prior to winkle of master core - Yield UART task when transmit FIFO doesn't have space Change-Id: I73905094a4d541b0b0ad7ffa1bcd1619d33f7743 Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/15133 Tested-by: Jenkins Server Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Diffstat (limited to 'src/usr/console')
-rw-r--r--src/usr/console/uart.C6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/usr/console/uart.C b/src/usr/console/uart.C
index 385a05cd9..aa85df50b 100644
--- a/src/usr/console/uart.C
+++ b/src/usr/console/uart.C
@@ -5,9 +5,9 @@
/* */
/* OpenPOWER HostBoot Project */
/* */
-/* Contributors Listed Below - COPYRIGHT 2014 */
-/* [+] International Business Machines Corp. */
+/* Contributors Listed Below - COPYRIGHT 2014,2015 */
/* [+] Google Inc. */
+/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
@@ -27,6 +27,7 @@
#include <devicefw/userif.H>
#include <lpc/lpcif.H>
#include <kernel/console.H>
+#include <sys/task.h>
#include <sys/time.h>
#include <errl/errlmanager.H>
#include <hwas/common/hwasCallout.H>
@@ -132,6 +133,7 @@ namespace CONSOLE
break;
}
nanosleep(0, DELAY_NS);
+ task_yield();
loops++;
} while( loops < DELAY_LOOPS);
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