Re: [bug] ata subsystem related crash with latest -git

[Jeff Garzik]

Mark Lord wrote:
> Okay, mine is dying with EIP at blk_rq_map_sg+0xcb/0x160.
>
> Screen photo is at http://rtr.ca/recent/2.6.23-git12-crash.jpg,
> but the top was cut off (isn't there a new config option or patch
> to do double-columns or scrollback or something ???.

Is this a sata_mv box?  If so, could you try this patch?

	Jeff



diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 4df8311..d8cf8b1 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -421,7 +421,6 @@ static void mv_error_handler(struct ata_port *ap);
 static void mv_post_int_cmd(struct ata_queued_cmd *qc);
 static void mv_eh_freeze(struct ata_port *ap);
 static void mv_eh_thaw(struct ata_port *ap);
-static int mv_slave_config(struct scsi_device *sdev);
 static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 
 static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
@@ -459,7 +458,7 @@ static struct scsi_host_template mv5_sht = {
 	.use_clustering		= 1,
 	.proc_name		= DRV_NAME,
 	.dma_boundary		= MV_DMA_BOUNDARY,
-	.slave_configure	= mv_slave_config,
+	.slave_configure	= ata_scsi_slave_config,
 	.slave_destroy		= ata_scsi_slave_destroy,
 	.bios_param		= ata_std_bios_param,
 };
@@ -477,7 +476,7 @@ static struct scsi_host_template mv6_sht = {
 	.use_clustering		= 1,
 	.proc_name		= DRV_NAME,
 	.dma_boundary		= MV_DMA_BOUNDARY,
-	.slave_configure	= mv_slave_config,
+	.slave_configure	= ata_scsi_slave_config,
 	.slave_destroy		= ata_scsi_slave_destroy,
 	.bios_param		= ata_std_bios_param,
 };
@@ -756,17 +755,6 @@ static void mv_irq_clear(struct ata_port *ap)
 {
 }
 
-static int mv_slave_config(struct scsi_device *sdev)
-{
-	int rc = ata_scsi_slave_config(sdev);
-	if (rc)
-		return rc;
-
-	blk_queue_max_phys_segments(sdev->request_queue, MV_MAX_SG_CT / 2);
-
-	return 0;	/* scsi layer doesn't check return value, sigh */
-}
-
 static void mv_set_edma_ptrs(void __iomem *port_mmio,
 			     struct mv_host_priv *hpriv,
 			     struct mv_port_priv *pp)