From: Mike Christie <michaelc@xxxxxxxxxxx> If the user accidentally changes LUN mappings or it occurs due to a bug, then it can cause data corruption that can take months and months to track down. This patch adds a log message when getting REPORT_LUNS_DATA_CHANGED and it adds a generic message for other Unit Attentions with asc == 0x3f. We are working on adding support for handling of these errors, but I think until then we should at least log a message so tracking down problems as a result of one of these changes is a little easier. Patch was made over scsi-rc-fixes. Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx> --- drivers/scsi/scsi_error.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index d45c69c..6f8000a 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -302,6 +302,19 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (scmd->device->allow_restart && (sshdr.asc == 0x04) && (sshdr.ascq == 0x02)) return FAILED; + + if (sshdr.asc == 0x3f && sshdr.ascq == 0x0e) + scmd_printk(KERN_WARNING, scmd, + "Warning! Received an indication that the " + "LUN assignments on this target have " + "changed. The Linux SCSI layer does not " + "automatically remap LUN assignments.\n"); + else if (sshdr.asc == 0x3f) + scmd_printk(KERN_WARNING, scmd, + "Warning! Received an indication that the " + "operating parameters on this target have " + "changed. The Linux SCSI layer does not " + "automatically adjust these parameters.\n"); return SUCCESS; /* these three are not supported */ -- 1.6.6.1 -- 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
