On Sat, 19 Sep 2009 08:24:02 -0700 Eddie <stunnel@xxxxxxxxxxxxx> wrote: > FUJITA Tomonori wrote: > > Thanks, now the problem is clear; the driver uses 64bit dma_mask but > > the hardware is not capable of 64bit dma according to James. Seems > > that hardware lies about the dma capability. > > > > Can you try the following patch? > > > > > > diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c > > index 234f0b7..9ead856 100644 > > --- a/drivers/scsi/megaraid/megaraid_mbox.c > > +++ b/drivers/scsi/megaraid/megaraid_mbox.c > > @@ -888,6 +888,8 @@ megaraid_init_mbox(adapter_t *adapter) > > if (((magic64 == HBA_SIGNATURE_64_BIT) && > > ((adapter->pdev->subsystem_device != > > PCI_SUBSYS_ID_MEGARAID_SATA_150_6) && > > + (adapter->pdev->device != > > + PCI_DEVICE_ID_AMI_MEGARAID3) && > > (adapter->pdev->subsystem_device != > > PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) || > > (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && > > > > > OK, that appears to have done the trick. Thanks for the confirmation. James, here's a patch in the proper format. = From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> Subject: [PATCH] megaraid: use 32bit DMA mask for AMI Megaraid3 The hardware says that it supports 64bit DMA however it doesn't. This patch always uses 32bit DMA mask. Reported-by: Eddie <stunnel@xxxxxxxxxxxxx> Tested-by: Eddie <stunnel@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxx Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> --- drivers/scsi/megaraid/megaraid_mbox.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 234f0b7..9ead856 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -888,6 +888,8 @@ megaraid_init_mbox(adapter_t *adapter) if (((magic64 == HBA_SIGNATURE_64_BIT) && ((adapter->pdev->subsystem_device != PCI_SUBSYS_ID_MEGARAID_SATA_150_6) && + (adapter->pdev->device != + PCI_DEVICE_ID_AMI_MEGARAID3) && (adapter->pdev->subsystem_device != PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) || (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC && -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
