When I tried testing the data integrity support in scsi_debug on x86_32, I got CONFIG_DEBUG_HIGHMEM warnings and protection errors. This was triggered due to misused kmap_atomic/kunmap_atomic. And then, while I was testing the fix of the above issue with several combination with module parameters dix and dif, I found that doing 'modprobe scsi_debug dif=0 dix=1' causes kernel crash. This patch set includes these fixes and cleanup which is related to data integrity support. Cc: "James E.J. Bottomley" <JBottomley@xxxxxxxxxxxxx> Cc: Douglas Gilbert <dgilbert@xxxxxxxxxxxx> Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> Cc: linux-scsi@xxxxxxxxxxxxxxx Akinobu Mita (3): scsi_debug: fix data integrity support on highmem machine scsi_debug: fix NULL pointer dereference with parameters dif=0 dix=1 scsi_debug: simplify offset calculation for dif_storep drivers/scsi/scsi_debug.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) -- 1.8.1.4 -- 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
