Hi, On Mon, May 18, 2009 at 03:02:59PM +0930, Jonathan Woithe wrote: > > On Sat, May 09, 2009 at 05:57:49PM +0200, Bartlomiej Zolnierkiewicz wrote: > > > > > > [ cc:ing linux-ide and knowledgeable people ] > > > > > > Borislav/Tejun: > > > Is the 2.6.29 problem the same thing that was fixed recently? > > > > I'll let Tejun answer that one since I don't get an oops. However, now > > that I have an ide-tape hardware here, I do get something DMA-related > > failing during boot ... > > : > > and more specifically the bad DMA info in identify block thing above. I > > haven't looked into it yet but its next on my TODO. > > Cool. > > > > Should I just push commit 1e75540ec5202cae63cd238c86bd880e3d496546 > > > ("ide-tape: remove back-to-back REQUEST_SENSE detection") to Linus > > > or there is more needed to bring ide-tape to the world of living? > > > > The oops will probably fixed the above commit. I don't have much idea > > about the DMA problem on 2.6.24 tho. But even with the above commit > > fixed, I doubt it would work. The buffer allocation code is broken > > and reliably triggered OOM on my test machine. While trying to locate > > the bug, I realized the complex code didn't do much good to begin with > > and just stripped it down, so I didn't actually tracked down the > > actual bug && the patch to simplify buffer management is way too large > > for 2.6.29, so unless someone is willing to hunt down the bug just for > > 2.6.29, we're kind of stuck. :-( > > So I take it that 2.6.30 (or one of the RCs) is worth trying (at least in so > far as preventing the oops on boot)? You could try 30-rc6 which runs pretty stable on my machines. It has the patch mentioned above in it. At least one user confirmed that it fixes ide-tape in his case. In case you still catch any OOPSes/warnings etc please send me the whole dmesg output along with how you trigger them. > > ... and I'm afraid we'll have to do some serious bugfixing since this > > driver is behaving really funny :). Stay tuned, I'm on it. > > Ok, I'll keep an eye out for updates. Presumedly we're talking 2.6.31 or > .32 here. Already in .31-rc1 there's will more patches cleaning up ide-tape so if you could try that and send us bug reports will be simply swell :). Thanks. -- Regards/Gruss, Boris. -- 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