Re: [SPARC64]: resumable error decoding

From: Kirill Korotaev <dev@xxxxx>
Date: Wed, 22 Nov 2006 13:19:28 +0300

I should add proper support for this, this report is a good reminder
:-)
would be nice :@)

I tested the following patch and it worked fine for me on a T2000, let
me know if it works for you too:

commit 035f09edbbc921b9688a65ec58c0f49b822e605c
Author: David S. Miller <davem@xxxxxxxxxxxxxxxxxxxx>
Date: Wed Nov 29 21:16:21 2006 -0800

[SPARC64]: Run ctrl-alt-del action for sun4v powerdown request.

Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>

diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index ec7a601..ad67784 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -10,7 +10,7 @@
*/

#include <linux/module.h>
-#include <linux/sched.h> /* for jiffies */
+#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/kallsyms.h>
#include <linux/signal.h>
@@ -1873,6 +1873,16 @@ void sun4v_resum_error(struct pt_regs *r

put_cpu();

+ if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) {
+ /* If err_type is 0x4, it's a powerdown request. Do
+ * not do the usual resumable error log because that
+ * makes it look like some abnormal error.
+ */
+ printk(KERN_INFO "Power down request...\n");
+ kill_cad_pid(SIGINT, 1);
+ return;
+ }
+
sun4v_log_error(regs, &local_copy, cpu,
KERN_ERR "RESUMABLE ERROR",
&sun4v_resum_oflow_cnt);
-
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