1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 31064df1370a..ce1a75df5902 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4519,6 +4519,12 @@ static __devinit int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
         misc_fw_support = readl(&cfgtable->misc_fw_support);
         use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
 
+        /* The doorbell reset seems to cause lockups on some Smart
+         * Arrays (e.g. P410, P410i, maybe others).  Until this is
+         * fixed or at least isolated, avoid the doorbell reset.
+         */
+        use_doorbell = 0;
+
         rc = cciss_controller_hard_reset(pdev, vaddr, use_doorbell);
         if (rc)
                 goto unmap_cfgtable;