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* [PATCH 1/1] aacraid: kdump fix
@ 2014-01-13  8:20 Mahesh Rajashekhara
  2014-01-13 11:12 ` Tomas Henzl
  0 siblings, 1 reply; 5+ messages in thread
From: Mahesh Rajashekhara @ 2014-01-13  8:20 UTC (permalink / raw)
  To: JBottomley, linux-scsi
  Cc: thenzl, aacraid, Harry.Yang, Achim.Leubner, Rich.Bono,
	Mahesh.Rajashekhara

Thanks for your review comments, Tomas

We have initialized var in this driver patch. This patch fixes kernel panic issue while booting into the kdump kernel.

We have triggered crash and kdump vmcore was successful. No issues seen while booting into the OS.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    2 +-
 drivers/scsi/aacraid/rx.c      |    7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 9323d05..eaaf870 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 30200
+# define AAC_DRIVER_BUILD 30300
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index dada38a..bb9917c 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -480,7 +480,7 @@ static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
 
 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 {
-	u32 var;
+	u32 var = 0;
 
 	if (!(dev->supplement_adapter_info.SupportedOptions2 &
 	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
@@ -500,13 +500,14 @@ static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled && (bled != -ETIMEDOUT))
 			return -EINVAL;
 	}
-	if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
+	if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 		rx_writel(dev, MUnit.reserved2, 3);
 		msleep(5000); /* Delay 5 seconds */
 		var = 0x00000001;
 	}
-	if (var != 0x00000001)
+	if (bled && (var != 0x00000001))
 		return -EINVAL;
+	ssleep(5);
 	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 		return -ENODEV;
 	if (startup_timeout < 300)
-- 
1.7.7.3


^ permalink raw reply related	[flat|nested] 5+ messages in thread
* [PATCH 1/1] aacraid: kdump fix
@ 2013-12-23 10:07 Mahesh Rajashekhara
  2014-01-08  6:34 ` Mahesh Rajashekhara
  0 siblings, 1 reply; 5+ messages in thread
From: Mahesh Rajashekhara @ 2013-12-23 10:07 UTC (permalink / raw)
  To: JBottomley, linux-scsi
  Cc: aacraid, Harry.Yang, Achim.Leubner, Rich.Bono,
	Mahesh.Rajashekhara

This patch fixes kernel panic issue while booting into the kdump kernel.

We have triggered crash and kdump vmcore was successful. No issues seen while booting into the OS.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
---
 drivers/scsi/aacraid/aacraid.h |    2 +-
 drivers/scsi/aacraid/rx.c      |    5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 9323d05..eaaf870 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 30200
+# define AAC_DRIVER_BUILD 30300
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index dada38a..9f2d88f 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -500,13 +500,14 @@ static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled && (bled != -ETIMEDOUT))
 			return -EINVAL;
 	}
-	if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
+	if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 		rx_writel(dev, MUnit.reserved2, 3);
 		msleep(5000); /* Delay 5 seconds */
 		var = 0x00000001;
 	}
-	if (var != 0x00000001)
+	if (bled && (var != 0x00000001))
 		return -EINVAL;
+	ssleep(5);
 	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
 		return -ENODEV;
 	if (startup_timeout < 300)
-- 
1.7.7.3


^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2014-01-13 11:12 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2014-01-13  8:20 [PATCH 1/1] aacraid: kdump fix Mahesh Rajashekhara
2014-01-13 11:12 ` Tomas Henzl
  -- strict thread matches above, loose matches on Subject: below --
2013-12-23 10:07 Mahesh Rajashekhara
2014-01-08  6:34 ` Mahesh Rajashekhara
2014-01-10 13:03   ` Tomas Henzl

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