Chauhan, Vijay [Vijay.Chauhan@xxxxxxx] wrote: > Resubmitting this patch to get the attention. > > This patch adds retry for the IO returned with 06/3f/03((INQUIRY_DATA_CHANGED)) sense code in rdac_check_sense(). IO returned with 06/3f/03 from controller are currently failed by scsi mid layer, as a reason momentarily path failure is noticed by DM multipath. > > Signed-off-by: Vijay Chauhan<vijay.chauhan@xxxxxxx> > Reviewed-by: Babu Moger <babu.moger@xxxxxxx> > Reviewed-by: Bob Stankey <Robert.stankey@xxxxxxx> > --- > > diff -uprN linux-2.6.35-rc6-orig/drivers/scsi/device_handler/scsi_dh_rdac.c linux-2.6.35-rc6/drivers/scsi/device_handler/scsi_dh_rdac.c > --- linux-2.6.35-rc6-orig/drivers/scsi/device_handler/scsi_dh_rdac.c 2010-07-22 15:13:38.000000000 -0400 > +++ linux-2.6.35-rc6/drivers/scsi/device_handler/scsi_dh_rdac.c 2010-07-27 12:13:58.000000000 -0400 > @@ -738,6 +738,11 @@ static int rdac_check_sense(struct scsi_ > * Quiescence in progress , just retry. > */ > return ADD_TO_MLQUEUE; > + if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x03) > + /* > + * INQUIRY DATA has changed, retry again. > + */ > + return ADD_TO_MLQUEUE; The code looks fine. Is this ASC/ASCQ code specific to RDAC devices? If not, how about changing the scsi_error.c itself? Thanks, Malahal. -- 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
