>>>>> "Christof" == Christof Schmitt <christof.schmitt@xxxxxxxxxx> writes: Christof> Since the guard tags are created in Linux, it seems that the Christof> data attached to the write request changes between the Christof> generation in bio_integrity_generate and the call to Christof> sd_prep_fn. Yep, known bug. Page writeback locking is messed up for buffer_head users. The extNfs folks volunteered to look into this a while back but I don't think they have found the time yet. Christof> Using ext3 or ext4 instead of ext2 does not show the problem. Last I looked there were still code paths in ext3 and ext4 that permitted pages to be changed during flight. I guess you've just been lucky. -- Martin K. Petersen Oracle Linux Engineering -- 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