Dear Piergiorgio, In message <20130129202433.GB7005@xxxxxxxx> you wrote: > > If all error report by raid6check, on the three > systems, are "unknown", then it seems to be a > software problem. I think we can be pretty sure of this now. For a test, I installed a vanilla mainline Linux kernel (v3.8-rc5) on the affected machines. A "check" operation showed no more problems, but "raid6test" still reported a large number of errors like these: ... P(4) wrong at 10291 Q(5) wrong at 10291 Error detected at 10291: disk slot unknown P(3) wrong at 10292 Q(4) wrong at 10292 Error detected at 10292: disk slot unknown P(2) wrong at 10293 Q(3) wrong at 10293 Error detected at 10293: disk slot unknown ... After running a "repair" on the array, both "check" and "raid6test" would not report any further issues. I'll continue to watch this for a while, but I think I will not "update" to a Fedora kernel for some time... Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@xxxxxxx Chapter 1 -- The story so far: In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
