Hello, You will laugh, but I've found the issue. These particular drives do not like the fan vibration and lowering the spin speed ;) Sh*t ... Sorry for bothering all of you and big thanks for support ! Rus 2012/7/26 Rus V. Brushkoff <brushkoff@xxxxxxxxx>: >> Yes, probably. Right about now I'm all out of ideas about what on the >> motherboard could be causing this. Maybe we should ask Tyan for help or >> whether they've seen a similar issue. > > Already asked, but they can't reproduce this as I think that they do > not use Linux for tests ;( > >> >>> Can we see (or debug) what is happenning on bad S8005GM2NR-LE >>> motherboard during write ? >> >> I don't think so, without special hardware. > > Hmm, what exact hardware needed for this ? > >> >> Just a stab in the dark: you've done all those with the systemrescuecd >> which has kernel 3.2, correct? Would it be possible to redo those tests, >> especially the ones which show the slowdown, with the latest kernel - >> 3.5 - to see whether the issue still persists? > > I've tried the systemrescuecd 3.0.0-beta too, its running 3.5 kernel. > > Rus > > -- > Rus -- Rus -- 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