Mark Lord wrote: > Jeff Garzik wrote: >> Paolo Ornati wrote: >>> I have this problem only with XFS, and even with XFS it goes away >>> mounting with "nobarrier"... >> >> This last is an interesting datapoint. >> >> I wonder if libata has a generic problem with NCQ + FLUSH CACHE. > > Yeah, that's pretty suspicious. Prior to issuing a FLUSH_CACHE op, > one must first drain all outstanding NCQ commands (and not issue new ones). > > I'm sure the code must *try* to do that, but perhaps there's a bug in > there? > Or just another drive bug? If there was such a bug, the aborted commands list should contain both FPDMA commands and FLUSH commands. I don't think command filtering itself is broken. Possibly another quirky firmware but it's strange that this is the only Seagate drive showing this problem. Thanks. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
