From: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx> Most smartarrays tolerate it, but a few new ones don't. When the controller doesn't tolerate the bug, the firmware on it locks up. No interrupts are received, no commands complete. I/o on that controller grinds to a halt. Signed-off-by: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx> Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/scsi/hpsa.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/scsi/hpsa.h~hpsa-do-not-attempt-to-read-from-a-write-only-register drivers/scsi/hpsa.h --- a/drivers/scsi/hpsa.h~hpsa-do-not-attempt-to-read-from-a-write-only-register +++ a/drivers/scsi/hpsa.h @@ -214,7 +214,7 @@ static void SA5_submit_command(struct ct dev_dbg(&h->pdev->dev, "Sending %x, tag = %x\n", c->busaddr, c->Header.Tag.lower); writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); - (void) readl(h->vaddr + SA5_REQUEST_PORT_OFFSET); + (void) readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); h->commands_outstanding++; if (h->commands_outstanding > h->max_outstanding) h->max_outstanding = h->commands_outstanding; _ -- 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
