On 2007-08-02 14:16:49, Hommel, Thomas wrote:
> I am trying to use a LSI53C1020 based adapter on a PowerPC board with
> MPC8641D processor. When initializing, the driver crashes the system
> with the error message below. Kernel version is 2.6.22.1, driver
> 3.04.04. The chip on the adapter is a 53C1020, but the driver detects a
> 53C1030. Has anyone experienced similar problems already?
Try this patch out. It appears that when loading the driver, your getting a
timeout when requesting a firmware config page. The timeout results in a
diag_reset of the controller, and all the ioc_reset callbacks are called for
every registered driver. When mptspi_ioc_reset is called, the hd object has
not be initialized. The fix is to return when hd is NULL. This object will
be setup once mptspi_probe has completed calling scsi_host_alloc.
Signed-off-by: Eric Moore <Eric.Moore@xxxxxxx>
diff -uarpN b/drivers/message/fusion/mptspi.c a/drivers/message/fusion/mptspi.c
--- b/drivers/message/fusion/mptspi.c 2007-08-08 11:41:02.000000000 -0600
+++ a/drivers/message/fusion/mptspi.c 2007-08-08 11:59:56.000000000 -0600
@@ -1249,14 +1249,20 @@ mptspi_dv_renegotiate(struct _MPT_SCSI_H
static int
mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
{
- struct _MPT_SCSI_HOST *hd = (struct _MPT_SCSI_HOST *)ioc->sh->hostdata;
+ struct _MPT_SCSI_HOST *hd = NULL;
int rc;
rc = mptscsih_ioc_reset(ioc, reset_phase);
+ if ((ioc->bus_type != SPI) || (!rc))
+ goto out;
- if (reset_phase == MPT_IOC_POST_RESET)
- mptspi_dv_renegotiate(hd);
+ hd = (MPT_SCSI_HOST *)ioc->sh->hostdata;
+ if (!hd || !hd->ioc)
+ goto out;
+ if (ioc->active && reset_phase == MPT_IOC_POST_RESET)
+ mptspi_dv_renegotiate(hd);
+ out:
return rc;
}
-
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