This is a note to let you know that I've just added the patch titled
hpwdt: Fix kdump issue in hpwdt
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hpwdt-fix-kdump-issue-in-hpwdt.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 308b135e4fcc00c80c07e0e04e7afa8edf78583c Mon Sep 17 00:00:00 2001
From: Toshi Kani <[email protected]>
Date: Mon, 27 Aug 2012 12:52:24 -0600
Subject: hpwdt: Fix kdump issue in hpwdt
From: Toshi Kani <[email protected]>
commit 308b135e4fcc00c80c07e0e04e7afa8edf78583c upstream.
kdump can be interrupted by watchdog timer when the timer is left
activated on the crash kernel. Changed the hpwdt driver to disable
watchdog timer at boot-time. This assures that watchdog timer is
disabled until /dev/watchdog is opened, and prevents watchdog timer
to be left running on the crash kernel.
Signed-off-by: Toshi Kani <[email protected]>
Tested-by: Lisa Mitchell <[email protected]>
Signed-off-by: Thomas Mingarelli <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/watchdog/hpwdt.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -806,6 +806,9 @@ static int __devinit hpwdt_init_one(stru
hpwdt_timer_reg = pci_mem_addr + 0x70;
hpwdt_timer_con = pci_mem_addr + 0x72;
+ /* Make sure that timer is disabled until /dev/watchdog is opened */
+ hpwdt_stop();
+
/* Make sure that we have a valid soft_margin */
if (hpwdt_change_timer(soft_margin))
hpwdt_change_timer(DEFAULT_MARGIN);
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/hpwdt-fix-kdump-issue-in-hpwdt.patch
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