LU-1312 kernel: crash at boot time in isci driver

Restore SG_ALL to default value to avoid crash isci.

Signed-off-by: yang sheng <ys@whamcloud.com>
Change-Id: I855ba8c7669b749fded51f3b0316f115d18e0fcd
Reviewed-on: http://review.whamcloud.com/2595
Reviewed-by: Johann Lombardi <johann@whamcloud.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>

diff --git a/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel5.patch b/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel5.patch
index 3874794..5343c8f 100644 (file)
--- a/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel5.patch
+++ b/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel5.patch
@@ -29,6 +29,19 @@ Index: linux-2.6.18-164.11.1/include/scsi/scsi_host.h
  
  
  #define DISABLE_CLUSTERING 0
+Index: linux-2.6.18-164.11.1/drivers/scsi/isci/init.c
+===================================================================
+--- linux-2.6.18-164.11.1/drivers/scsi/isci/init.c
++++ linux-2.6.18-164.11.1/drivers/scsi/isci/init.c
+@@ -38,7 +38,7 @@
+       .can_queue                      = ISCI_CAN_QUEUE_VAL,
+       .cmd_per_lun                    = 1,
+       .this_id                        = -1,
+-      .sg_tablesize                   = SG_ALL,
++      .sg_tablesize                   = 0x80,
+       .max_sectors                    = SCSI_DEFAULT_MAX_SECTORS,
+       .use_clustering                 = ENABLE_CLUSTERING,
+       .eh_device_reset_handler        = sas_eh_device_reset_handler,
 Index: linux-2.6.18-164.11.1/drivers/scsi/lpfc/lpfc.h
 ===================================================================
 --- linux-2.6.18-164.11.1.orig/drivers/scsi/lpfc/lpfc.h