Peter Favrholdt writes: > Hi Mikael, > > Thanks for your reply :-) > > Mikael Pettersson wrote: > > Mysterious. What you have there is a transmission error between the > > controller and the disk, which is bad in and by itself, but then there's > > a sequence of COMRESETs that fail to bring the port or disk back to life. > > > > The original error is not a driver error but something caused by your > > system, be it a dodgy cable, a poorly seated cable, or electrical > > interference. But the failed COMRESETs is a concern as I've seen them > > in other reports as well. > > Maybe I should try switching cables (again). Or it could be a > motherboard issue (NFORCE2)? > > > Me worried ... > > > > So going back to 2.6.21-rc2 makes the system stable again? Can you do some > > more testing to see at what point the system becomes less stable? I.e., > > 2.6.21-rcI, 2.6.22, 2.6.22-rcJ, 2.6.23, or 2.6.24-rcJ? > > I believe the important part is your 1.5Gbps patch which I applied to > 2.6.21-rc2. Maybe the reason for being stable is that the transmission > error will not show up at that speed - thus not having anything to do > with the kernel version. I'm quite sure the problem is there using > 2.6.21-rc2 at 3Gbps. > > > FWIW, I just completed some testing of a 300 TX4 card with kernel 2.6.24, > > including dd:s, fscks, mkfs:s, and copying about 400GB of data from one > > drive > > (Samsung) to another (Seagate 7200.10) on that card, and I cannot seem to > > break it. > > I believe it only happens if I stress all four drives simultanously. So > maybe the transmission error is somehow related to the overall stress of > the PCI bus/card/chip/whatever? > > If it is not too much of a hassle, could you please make a 1.5Gbps patch > for 2.6.24 for me to try out? If it solves the problem (without me ever > touching the cables) we know for sure it is speed-related and not due to > kernel version.
No problem. I had intended to drop that patch after 2.6.24-rc8 as it ought to be obsolete, but then again it might not be. It's available here: <http://user.it.uu.se/~mikpe/linux/patches/2.6/patch-sata_promise-limit-sataii-to-1.5Gbps-2.6.24> - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html